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jeffhao5d1ac922011-09-29 17:41:15 -07001/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
jeffhao5d1ac922011-09-29 17:41:15 -070017import junit.framework.Assert;
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +070018import java.util.Arrays;
19import java.lang.reflect.Method;
jeffhao5d1ac922011-09-29 17:41:15 -070020
21public class Main {
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +070022 public static void main(String args[]) throws Exception {
Elliott Hughes28c384b2012-06-15 16:46:25 -070023 test_Double_doubleToRawLongBits();
24 test_Double_longBitsToDouble();
25 test_Float_floatToRawIntBits();
26 test_Float_intBitsToFloat();
27 test_Math_abs_I();
28 test_Math_abs_J();
Serban Constantinescu23abec92014-07-02 16:13:38 +010029 test_Math_min_I();
30 test_Math_max_I();
31 test_Math_min_J();
32 test_Math_max_J();
33 test_Math_min_F();
34 test_Math_max_F();
35 test_Math_min_D();
36 test_Math_max_D();
Chao-ying Fuff87d7b2015-01-19 15:51:57 -080037 test_Math_sqrt();
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +010038 test_Math_ceil();
39 test_Math_floor();
40 test_Math_rint();
41 test_Math_round_D();
42 test_Math_round_F();
Chris Larsen2714fe62016-02-11 14:23:53 -080043 test_Math_isNaN_D();
44 test_Math_isNaN_F();
45 test_Math_isInfinite_D();
46 test_Math_isInfinite_F();
Nikita Iashchenko745da802021-01-20 21:52:54 +000047 test_Math_multiplyHigh();
Shalini Salomi Bodapati6545ee32021-11-02 20:01:06 +053048 test_Math_fma_D();
49 test_Math_fma_F();
Zheng Xua3fe7422014-07-09 14:03:15 +080050 test_Short_reverseBytes();
51 test_Integer_reverseBytes();
52 test_Long_reverseBytes();
Serban Constantinescu23abec92014-07-02 16:13:38 +010053 test_Integer_reverse();
54 test_Long_reverse();
Scott Wakeling611d3392015-07-10 11:42:06 +010055 test_Integer_numberOfLeadingZeros();
56 test_Long_numberOfLeadingZeros();
Sebastien Hertzbf1442d2013-03-05 15:12:40 +010057 test_StrictMath_abs_I();
58 test_StrictMath_abs_J();
Serban Constantinescu23abec92014-07-02 16:13:38 +010059 test_StrictMath_min_I();
60 test_StrictMath_max_I();
61 test_StrictMath_min_J();
62 test_StrictMath_max_J();
63 test_StrictMath_min_F();
64 test_StrictMath_max_F();
65 test_StrictMath_min_D();
66 test_StrictMath_max_D();
Chao-ying Fuff87d7b2015-01-19 15:51:57 -080067 test_StrictMath_sqrt();
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +010068 test_StrictMath_ceil();
69 test_StrictMath_floor();
70 test_StrictMath_rint();
71 test_StrictMath_round_D();
72 test_StrictMath_round_F();
Elliott Hughes28c384b2012-06-15 16:46:25 -070073 test_String_charAt();
74 test_String_compareTo();
75 test_String_indexOf();
76 test_String_isEmpty();
77 test_String_length();
Andreas Gampe7a949612014-07-08 11:03:59 -070078 test_Thread_currentThread();
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +070079 initSupportMethodsForPeekPoke();
80 test_Memory_peekByte();
81 test_Memory_peekShort();
82 test_Memory_peekInt();
83 test_Memory_peekLong();
84 test_Memory_pokeByte();
85 test_Memory_pokeShort();
86 test_Memory_pokeInt();
87 test_Memory_pokeLong();
Andra Danciudc787f42020-07-07 14:28:56 +000088 test_Integer_divideUnsigned();
Artem Serova3bd4ec2020-08-27 16:26:17 +010089 test_Long_divideUnsigned();
Scott Wakeling9ee23f42015-07-23 10:44:35 +010090 test_Integer_numberOfTrailingZeros();
91 test_Long_numberOfTrailingZeros();
92 test_Integer_rotateRight();
93 test_Long_rotateRight();
94 test_Integer_rotateLeft();
95 test_Long_rotateLeft();
96 test_Integer_rotateRightLeft();
97 test_Long_rotateRightLeft();
Elliott Hughes28c384b2012-06-15 16:46:25 -070098 }
99
Andreas Gampe7a949612014-07-08 11:03:59 -0700100 /**
101 * Will test inlining Thread.currentThread().
102 */
103 public static void test_Thread_currentThread() {
104 // 1. Do not use result.
105 Thread.currentThread();
106
107 // 2. Result should not be null.
108 Assert.assertNotNull(Thread.currentThread());
109 }
110
Elliott Hughes28c384b2012-06-15 16:46:25 -0700111 public static void test_String_length() {
112 String str0 = "";
113 String str1 = "x";
114 String str80 = "01234567890123456789012345678901234567890123456789012345678901234567890123456789";
115
116 Assert.assertEquals(str0.length(), 0);
117 Assert.assertEquals(str1.length(), 1);
118 Assert.assertEquals(str80.length(), 80);
119
120 String strNull = null;
121 try {
122 strNull.length();
123 Assert.fail();
124 } catch (NullPointerException expected) {
125 }
126 }
127
128 public static void test_String_isEmpty() {
129 String str0 = "";
130 String str1 = "x";
131
132 Assert.assertTrue(str0.isEmpty());
133 Assert.assertFalse(str1.isEmpty());
134
135 String strNull = null;
136 try {
137 strNull.isEmpty();
138 Assert.fail();
139 } catch (NullPointerException expected) {
140 }
141 }
142
Andreas Gampe71fb52f2014-12-29 17:43:08 -0800143 // Break up the charAt tests. The optimizing compiler doesn't optimize methods with try-catch yet,
144 // so we need to separate out the tests that are expected to throw exception
145
Elliott Hughes28c384b2012-06-15 16:46:25 -0700146 public static void test_String_charAt() {
Andreas Gampe878d58c2015-01-15 23:24:00 -0800147 String testStr = "Now is the time to test some stuff";
Elliott Hughes28c384b2012-06-15 16:46:25 -0700148
Andreas Gampe878d58c2015-01-15 23:24:00 -0800149 Assert.assertEquals(testStr.length() - 1, 33); // 33 = testStr.length()-1 as a constant.
150 Assert.assertEquals('f', testStr.charAt(33));
Elliott Hughes28c384b2012-06-15 16:46:25 -0700151
Andreas Gampe878d58c2015-01-15 23:24:00 -0800152 test_String_charAt(testStr, 'N', 'o', ' ', 'f');
153 test_String_charAt(testStr.substring(3,15), ' ', 'i', 'm', 'e');
154 }
155 public static void test_String_charAt(String testStr, char a, char b, char c, char d) {
156 Assert.assertEquals(a, testStr.charAt(0));
157 Assert.assertEquals(b, testStr.charAt(1));
158 Assert.assertEquals(c, testStr.charAt(10));
159 Assert.assertEquals(d, testStr.charAt(testStr.length()-1));
160
161 test_String_charAtExc(testStr);
162 test_String_charAtExc2(testStr);
Andreas Gampe71fb52f2014-12-29 17:43:08 -0800163 }
164
Andreas Gampe878d58c2015-01-15 23:24:00 -0800165 private static void test_String_charAtExc(String testStr) {
Elliott Hughes28c384b2012-06-15 16:46:25 -0700166 try {
167 testStr.charAt(-1);
168 Assert.fail();
169 } catch (StringIndexOutOfBoundsException expected) {
170 }
171 try {
172 testStr.charAt(80);
173 Assert.fail();
174 } catch (StringIndexOutOfBoundsException expected) {
jeffhao5d1ac922011-09-29 17:41:15 -0700175 }
Vladimir Marko00ca8472015-01-26 14:06:46 +0000176 try {
Andreas Gampe878d58c2015-01-15 23:24:00 -0800177 if (testStr.length() == 34) {
178 testStr.charAt(34); // 34 = "Now is the time to test some stuff".length()
179 } else {
180 Assert.assertEquals(testStr.length(), 12); // 12 = " is the time".length()
181 testStr.charAt(12);
182 }
Vladimir Marko00ca8472015-01-26 14:06:46 +0000183 Assert.fail();
184 } catch (StringIndexOutOfBoundsException expected) {
185 }
186 try {
187 test_String_charAt_inner(testStr, -1);
188 Assert.fail();
189 } catch (StringIndexOutOfBoundsException expected) {
190 }
191 try {
192 test_String_charAt_inner(testStr, 80);
193 Assert.fail();
194 } catch (StringIndexOutOfBoundsException expected) {
195 }
196 try {
Andreas Gampe878d58c2015-01-15 23:24:00 -0800197 if (testStr.length() == 34) {
198 // 34 = "Now is the time to test some stuff".length()
199 test_String_charAt_inner(testStr, 34);
200 } else {
201 Assert.assertEquals(testStr.length(), 12); // 12 = " is the time".length()
202 test_String_charAt_inner(testStr, 12);
203 }
Vladimir Marko00ca8472015-01-26 14:06:46 +0000204 Assert.fail();
205 } catch (StringIndexOutOfBoundsException expected) {
206 }
207
208 String strEmpty = "";
209 try {
210 strEmpty.charAt(0);
211 Assert.fail();
212 } catch (StringIndexOutOfBoundsException expected) {
213 }
jeffhao5d1ac922011-09-29 17:41:15 -0700214
Elliott Hughes28c384b2012-06-15 16:46:25 -0700215 String strNull = null;
216 try {
217 strNull.charAt(0);
218 Assert.fail();
219 } catch (NullPointerException expected) {
jeffhao5d1ac922011-09-29 17:41:15 -0700220 }
Elliott Hughes28c384b2012-06-15 16:46:25 -0700221 }
jeffhao5d1ac922011-09-29 17:41:15 -0700222
Vladimir Marko00ca8472015-01-26 14:06:46 +0000223 private static char test_String_charAt_inner(String s, int index) {
224 // Using non-constant index here (assuming that this method wasn't inlined).
225 return s.charAt(index);
226 }
227
Andreas Gampe878d58c2015-01-15 23:24:00 -0800228 private static void test_String_charAtExc2(String testStr) {
Andreas Gampe71fb52f2014-12-29 17:43:08 -0800229 try {
Andreas Gampe878d58c2015-01-15 23:24:00 -0800230 test_String_charAtExc3(testStr);
231 Assert.fail();
232 } catch (StringIndexOutOfBoundsException expected) {
233 }
234 try {
235 test_String_charAtExc4(testStr);
Andreas Gampe71fb52f2014-12-29 17:43:08 -0800236 Assert.fail();
237 } catch (StringIndexOutOfBoundsException expected) {
238 }
239 }
240
Andreas Gampe878d58c2015-01-15 23:24:00 -0800241 private static void test_String_charAtExc3(String testStr) {
Andreas Gampe71fb52f2014-12-29 17:43:08 -0800242 Assert.assertEquals('N', testStr.charAt(-1));
243 }
244
Andreas Gampe878d58c2015-01-15 23:24:00 -0800245 private static void test_String_charAtExc4(String testStr) {
246 Assert.assertEquals('N', testStr.charAt(100));
247 }
248
Yevgeny Rouban34fa0d92014-03-13 12:15:58 +0700249 static int start;
Alexei Zavjalova1758d82014-04-17 01:55:43 +0700250 private static int[] negIndex = { -100000 };
Elliott Hughes28c384b2012-06-15 16:46:25 -0700251 public static void test_String_indexOf() {
252 String str0 = "";
Yevgeny Rouban34fa0d92014-03-13 12:15:58 +0700253 String str1 = "/";
Elliott Hughes28c384b2012-06-15 16:46:25 -0700254 String str3 = "abc";
255 String str10 = "abcdefghij";
256 String str40 = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabc";
jeffhao5d1ac922011-09-29 17:41:15 -0700257
Elliott Hughes28c384b2012-06-15 16:46:25 -0700258 Assert.assertEquals(str0.indexOf('a'), -1);
259 Assert.assertEquals(str3.indexOf('a'), 0);
260 Assert.assertEquals(str3.indexOf('b'), 1);
261 Assert.assertEquals(str3.indexOf('c'), 2);
262 Assert.assertEquals(str10.indexOf('j'), 9);
263 Assert.assertEquals(str40.indexOf('a'), 0);
264 Assert.assertEquals(str40.indexOf('b'), 38);
265 Assert.assertEquals(str40.indexOf('c'), 39);
266 Assert.assertEquals(str0.indexOf('a',20), -1);
267 Assert.assertEquals(str0.indexOf('a',0), -1);
268 Assert.assertEquals(str0.indexOf('a',-1), -1);
Yevgeny Rouban34fa0d92014-03-13 12:15:58 +0700269 Assert.assertEquals(str1.indexOf('/',++start), -1);
Alexei Zavjalova1758d82014-04-17 01:55:43 +0700270 Assert.assertEquals(str1.indexOf('a',negIndex[0]), -1);
Elliott Hughes28c384b2012-06-15 16:46:25 -0700271 Assert.assertEquals(str3.indexOf('a',0), 0);
272 Assert.assertEquals(str3.indexOf('a',1), -1);
273 Assert.assertEquals(str3.indexOf('a',1234), -1);
274 Assert.assertEquals(str3.indexOf('b',0), 1);
275 Assert.assertEquals(str3.indexOf('b',1), 1);
276 Assert.assertEquals(str3.indexOf('c',2), 2);
277 Assert.assertEquals(str10.indexOf('j',5), 9);
278 Assert.assertEquals(str10.indexOf('j',9), 9);
279 Assert.assertEquals(str40.indexOf('a',10), 10);
280 Assert.assertEquals(str40.indexOf('b',40), -1);
281
Andreas Gampe678e6952015-05-07 16:44:58 -0700282 testIndexOfNull();
283
Andreas Gampe21030dd2015-05-07 14:46:15 -0700284 // Same data as above, but stored so it's not a literal in the next test. -2 stands for
285 // indexOf(I) instead of indexOf(II).
286 start--;
287 int[][] searchData = {
288 { 'a', -2, -1 },
289 { 'a', -2, 0 },
290 { 'b', -2, 1 },
291 { 'c', -2, 2 },
292 { 'j', -2, 9 },
293 { 'a', -2, 0 },
294 { 'b', -2, 38 },
295 { 'c', -2, 39 },
296 { 'a', 20, -1 },
297 { 'a', 0, -1 },
298 { 'a', -1, -1 },
299 { '/', ++start, -1 },
300 { 'a', negIndex[0], -1 },
301 { 'a', 0, 0 },
302 { 'a', 1, -1 },
303 { 'a', 1234, -1 },
304 { 'b', 0, 1 },
305 { 'b', 1, 1 },
306 { 'c', 2, 2 },
307 { 'j', 5, 9 },
308 { 'j', 9, 9 },
309 { 'a', 10, 10 },
310 { 'b', 40, -1 },
311 };
312 testStringIndexOfChars(searchData);
313
Andreas Gampe678e6952015-05-07 16:44:58 -0700314 testSurrogateIndexOf();
315 }
316
Andreas Gampe21030dd2015-05-07 14:46:15 -0700317 private static void testStringIndexOfChars(int[][] searchData) {
318 // Use a try-catch to avoid inlining.
319 try {
320 testStringIndexOfCharsImpl(searchData);
321 } catch (Exception e) {
322 System.out.println("Unexpected exception");
323 }
324 }
325
326 private static void testStringIndexOfCharsImpl(int[][] searchData) {
327 String str0 = "";
328 String str1 = "/";
329 String str3 = "abc";
330 String str10 = "abcdefghij";
331 String str40 = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabc";
332
333 Assert.assertEquals(str0.indexOf(searchData[0][0]), searchData[0][2]);
334 Assert.assertEquals(str3.indexOf(searchData[1][0]), searchData[1][2]);
335 Assert.assertEquals(str3.indexOf(searchData[2][0]), searchData[2][2]);
336 Assert.assertEquals(str3.indexOf(searchData[3][0]), searchData[3][2]);
337 Assert.assertEquals(str10.indexOf(searchData[4][0]), searchData[4][2]);
338 Assert.assertEquals(str40.indexOf(searchData[5][0]), searchData[5][2]);
339 Assert.assertEquals(str40.indexOf(searchData[6][0]), searchData[6][2]);
340 Assert.assertEquals(str40.indexOf(searchData[7][0]), searchData[7][2]);
341 Assert.assertEquals(str0.indexOf(searchData[8][0], searchData[8][1]), searchData[8][2]);
342 Assert.assertEquals(str0.indexOf(searchData[9][0], searchData[9][1]), searchData[9][2]);
343 Assert.assertEquals(str0.indexOf(searchData[10][0], searchData[10][1]), searchData[10][2]);
344 Assert.assertEquals(str1.indexOf(searchData[11][0], searchData[11][1]), searchData[11][2]);
345 Assert.assertEquals(str1.indexOf(searchData[12][0], searchData[12][1]), searchData[12][2]);
346 Assert.assertEquals(str3.indexOf(searchData[13][0], searchData[13][1]), searchData[13][2]);
347 Assert.assertEquals(str3.indexOf(searchData[14][0], searchData[14][1]), searchData[14][2]);
348 Assert.assertEquals(str3.indexOf(searchData[15][0], searchData[15][1]), searchData[15][2]);
349 Assert.assertEquals(str3.indexOf(searchData[16][0], searchData[16][1]), searchData[16][2]);
350 Assert.assertEquals(str3.indexOf(searchData[17][0], searchData[17][1]), searchData[17][2]);
351 Assert.assertEquals(str3.indexOf(searchData[18][0], searchData[18][1]), searchData[18][2]);
352 Assert.assertEquals(str10.indexOf(searchData[19][0], searchData[19][1]), searchData[19][2]);
353 Assert.assertEquals(str10.indexOf(searchData[20][0], searchData[20][1]), searchData[20][2]);
354 Assert.assertEquals(str40.indexOf(searchData[21][0], searchData[21][1]), searchData[21][2]);
355 Assert.assertEquals(str40.indexOf(searchData[22][0], searchData[22][1]), searchData[22][2]);
356 }
357
Andreas Gampe678e6952015-05-07 16:44:58 -0700358 private static void testSurrogateIndexOf() {
359 int supplementaryChar = 0x20b9f;
360 String surrogatePair = "\ud842\udf9f";
361 String stringWithSurrogates = "hello " + surrogatePair + " world";
362
363 Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar), "hello ".length());
364 Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar, 2), "hello ".length());
365 Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar, 6), 6);
366 Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar, 7), -1);
Andreas Gampeba6fdbc2015-05-07 22:31:55 -0700367
368 Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar - 0x10000), -1);
369 Assert.assertEquals(stringWithSurrogates.indexOf(supplementaryChar | 0x80000000), -1);
Andreas Gampe678e6952015-05-07 16:44:58 -0700370 }
371
372 private static void testIndexOfNull() {
Elliott Hughes28c384b2012-06-15 16:46:25 -0700373 String strNull = null;
374 try {
Andreas Gampe678e6952015-05-07 16:44:58 -0700375 testNullIndex(strNull, 'a');
Elliott Hughes28c384b2012-06-15 16:46:25 -0700376 Assert.fail();
377 } catch (NullPointerException expected) {
jeffhao5d1ac922011-09-29 17:41:15 -0700378 }
Elliott Hughes28c384b2012-06-15 16:46:25 -0700379 try {
Andreas Gampe678e6952015-05-07 16:44:58 -0700380 testNullIndex(strNull, 'a', 0);
Elliott Hughes28c384b2012-06-15 16:46:25 -0700381 Assert.fail();
382 } catch (NullPointerException expected) {
jeffhao5d1ac922011-09-29 17:41:15 -0700383 }
Elliott Hughes28c384b2012-06-15 16:46:25 -0700384 try {
Andreas Gampe678e6952015-05-07 16:44:58 -0700385 testNullIndex(strNull, 'a', -1);
Elliott Hughes28c384b2012-06-15 16:46:25 -0700386 Assert.fail();
387 } catch (NullPointerException expected) {
jeffhao5d1ac922011-09-29 17:41:15 -0700388 }
Elliott Hughes28c384b2012-06-15 16:46:25 -0700389 }
jeffhao5d1ac922011-09-29 17:41:15 -0700390
Andreas Gampe678e6952015-05-07 16:44:58 -0700391 private static int testNullIndex(String strNull, int c) {
392 return strNull.indexOf(c);
393 }
394
395 private static int testNullIndex(String strNull, int c, int startIndex) {
396 return strNull.indexOf(c, startIndex);
397 }
398
Elliott Hughes28c384b2012-06-15 16:46:25 -0700399 public static void test_String_compareTo() {
400 String test = "0123456789";
401 String test1 = new String("0123456789"); // different object
402 String test2 = new String("0123456780"); // different value
403 String offset = new String("xxx0123456789yyy");
404 String sub = offset.substring(3, 13);
405 String str32 = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
406 String str33 = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxy";
407 String lc = "abcdefg";
408 String uc = "ABCDEFG";
409 Object blah = new Object();
410
411 Assert.assertTrue(lc.toUpperCase().equals(uc));
412
413 Assert.assertEquals(str32.compareTo(str33), -1);
414 Assert.assertEquals(str33.compareTo(str32), 1);
415
416 Assert.assertTrue(test.equals(test));
417 Assert.assertTrue(test.equals(test1));
418 Assert.assertFalse(test.equals(test2));
419
420 Assert.assertEquals(test.compareTo(test1), 0);
421 Assert.assertTrue(test1.compareTo(test2) > 0);
422 Assert.assertTrue(test2.compareTo(test1) < 0);
423
424 // Compare string with a nonzero offset, in left/right side.
425 Assert.assertEquals(test.compareTo(sub), 0);
426 Assert.assertEquals(sub.compareTo(test), 0);
427 Assert.assertTrue(test.equals(sub));
428 Assert.assertTrue(sub.equals(test));
429 // Same base, one is a substring.
430 Assert.assertFalse(offset.equals(sub));
431 Assert.assertFalse(sub.equals(offset));
432 // Wrong class.
433 Assert.assertFalse(test.equals(blah));
434
435 // Null lhs - throw.
436 try {
437 test.compareTo(null);
438 Assert.fail("didn't get expected npe");
439 } catch (NullPointerException npe) {
440 }
441 // Null rhs - okay.
442 Assert.assertFalse(test.equals(null));
443
444 test = test.substring(1);
445 Assert.assertTrue(test.equals("123456789"));
446 Assert.assertFalse(test.equals(test1));
447
448 test = test.substring(1);
449 Assert.assertTrue(test.equals("23456789"));
450
451 test = test.substring(1);
452 Assert.assertTrue(test.equals("3456789"));
453
454 test = test.substring(1);
455 Assert.assertTrue(test.equals("456789"));
456
457 test = test.substring(3,5);
458 Assert.assertTrue(test.equals("78"));
459
460 test = "this/is/a/path";
461 String[] strings = test.split("/");
462 Assert.assertEquals(4, strings.length);
463
464 Assert.assertEquals("this is a path", test.replaceAll("/", " "));
465 Assert.assertEquals("this is a path", test.replace("/", " "));
466 }
467
468 public static void test_Math_abs_I() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800469 Math.abs(-1);
Elliott Hughes28c384b2012-06-15 16:46:25 -0700470 Assert.assertEquals(Math.abs(0), 0);
471 Assert.assertEquals(Math.abs(123), 123);
472 Assert.assertEquals(Math.abs(-123), 123);
473 Assert.assertEquals(Math.abs(Integer.MAX_VALUE), Integer.MAX_VALUE);
474 Assert.assertEquals(Math.abs(Integer.MIN_VALUE), Integer.MIN_VALUE);
475 Assert.assertEquals(Math.abs(Integer.MIN_VALUE - 1), Integer.MAX_VALUE);
Sebastien Hertzbf1442d2013-03-05 15:12:40 +0100476 Assert.assertEquals(Math.abs(Integer.MIN_VALUE + 1), Integer.MAX_VALUE);
Elliott Hughes28c384b2012-06-15 16:46:25 -0700477 }
478
479 public static void test_Math_abs_J() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800480 Math.abs(-1L);
Elliott Hughes28c384b2012-06-15 16:46:25 -0700481 Assert.assertEquals(Math.abs(0L), 0L);
482 Assert.assertEquals(Math.abs(123L), 123L);
483 Assert.assertEquals(Math.abs(-123L), 123L);
484 Assert.assertEquals(Math.abs(Long.MAX_VALUE), Long.MAX_VALUE);
485 Assert.assertEquals(Math.abs(Long.MIN_VALUE), Long.MIN_VALUE);
486 Assert.assertEquals(Math.abs(Long.MIN_VALUE - 1), Long.MAX_VALUE);
Andreas Gampe2bcf9bf2015-01-29 09:56:07 -0800487 Assert.assertEquals(Math.abs(2147483648L), 2147483648L);
Elliott Hughes28c384b2012-06-15 16:46:25 -0700488 }
489
Serban Constantinescu23abec92014-07-02 16:13:38 +0100490 public static void test_Math_min_I() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800491 Math.min(1, 0);
Elliott Hughes28c384b2012-06-15 16:46:25 -0700492 Assert.assertEquals(Math.min(0, 0), 0);
493 Assert.assertEquals(Math.min(1, 0), 0);
494 Assert.assertEquals(Math.min(0, 1), 0);
495 Assert.assertEquals(Math.min(0, Integer.MAX_VALUE), 0);
496 Assert.assertEquals(Math.min(Integer.MIN_VALUE, 0), Integer.MIN_VALUE);
497 Assert.assertEquals(Math.min(Integer.MIN_VALUE, Integer.MAX_VALUE), Integer.MIN_VALUE);
498 }
499
Serban Constantinescu23abec92014-07-02 16:13:38 +0100500 public static void test_Math_max_I() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800501 Math.max(1, 0);
Elliott Hughes28c384b2012-06-15 16:46:25 -0700502 Assert.assertEquals(Math.max(0, 0), 0);
503 Assert.assertEquals(Math.max(1, 0), 1);
504 Assert.assertEquals(Math.max(0, 1), 1);
505 Assert.assertEquals(Math.max(0, Integer.MAX_VALUE), Integer.MAX_VALUE);
506 Assert.assertEquals(Math.max(Integer.MIN_VALUE, 0), 0);
507 Assert.assertEquals(Math.max(Integer.MIN_VALUE, Integer.MAX_VALUE), Integer.MAX_VALUE);
508 }
509
Serban Constantinescu23abec92014-07-02 16:13:38 +0100510 public static void test_Math_min_J() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800511 Math.min(1L, 0L);
Serban Constantinescu23abec92014-07-02 16:13:38 +0100512 Assert.assertEquals(Math.min(0L, 0L), 0L);
513 Assert.assertEquals(Math.min(1L, 0L), 0L);
514 Assert.assertEquals(Math.min(0L, 1L), 0L);
515 Assert.assertEquals(Math.min(0L, Long.MAX_VALUE), 0L);
516 Assert.assertEquals(Math.min(Long.MIN_VALUE, 0L), Long.MIN_VALUE);
517 Assert.assertEquals(Math.min(Long.MIN_VALUE, Long.MAX_VALUE), Long.MIN_VALUE);
518 }
519
520 public static void test_Math_max_J() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800521 Math.max(1L, 0L);
Serban Constantinescu23abec92014-07-02 16:13:38 +0100522 Assert.assertEquals(Math.max(0L, 0L), 0L);
523 Assert.assertEquals(Math.max(1L, 0L), 1L);
524 Assert.assertEquals(Math.max(0L, 1L), 1L);
525 Assert.assertEquals(Math.max(0L, Long.MAX_VALUE), Long.MAX_VALUE);
526 Assert.assertEquals(Math.max(Long.MIN_VALUE, 0L), 0L);
527 Assert.assertEquals(Math.max(Long.MIN_VALUE, Long.MAX_VALUE), Long.MAX_VALUE);
528 }
529
530 public static void test_Math_min_F() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800531 Math.min(1.0f, Float.NaN);
Alexei Zavjalov1222c962014-07-16 00:54:13 +0700532 Assert.assertTrue(Float.isNaN(Math.min(1.0f, Float.NaN)));
533 Assert.assertTrue(Float.isNaN(Math.min(Float.NaN, 1.0f)));
534 Assert.assertEquals(Math.min(-0.0f, 0.0f), -0.0f);
535 Assert.assertEquals(Math.min(0.0f, -0.0f), -0.0f);
536 Assert.assertEquals(Math.min(-0.0f, -0.0f), -0.0f);
537 Assert.assertEquals(Math.min(0.0f, 0.0f), 0.0f);
538 Assert.assertEquals(Math.min(1.0f, 0.0f), 0.0f);
539 Assert.assertEquals(Math.min(0.0f, 1.0f), 0.0f);
540 Assert.assertEquals(Math.min(0.0f, Float.MAX_VALUE), 0.0f);
541 Assert.assertEquals(Math.min(Float.MIN_VALUE, 0.0f), 0.0f);
542 Assert.assertEquals(Math.min(Float.MIN_VALUE, Float.MAX_VALUE), Float.MIN_VALUE);
xueliang.zhongc032e742016-03-28 16:44:32 +0100543 // Should not have flush-to-zero behavior.
544 Assert.assertEquals(Math.min(Float.MIN_VALUE, Float.MIN_VALUE), Float.MIN_VALUE);
Serban Constantinescu23abec92014-07-02 16:13:38 +0100545 }
546
547 public static void test_Math_max_F() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800548 Math.max(1.0f, Float.NaN);
Alexei Zavjalov1222c962014-07-16 00:54:13 +0700549 Assert.assertTrue(Float.isNaN(Math.max(1.0f, Float.NaN)));
550 Assert.assertTrue(Float.isNaN(Math.max(Float.NaN, 1.0f)));
551 Assert.assertEquals(Math.max(-0.0f, 0.0f), 0.0f);
552 Assert.assertEquals(Math.max(0.0f, -0.0f), 0.0f);
553 Assert.assertEquals(Math.max(-0.0f, -0.0f), -0.0f);
554 Assert.assertEquals(Math.max(0.0f, 0.0f), 0.0f);
555 Assert.assertEquals(Math.max(1.0f, 0.0f), 1.0f);
556 Assert.assertEquals(Math.max(0.0f, 1.0f), 1.0f);
557 Assert.assertEquals(Math.max(0.0f, Float.MAX_VALUE), Float.MAX_VALUE);
Alexei Zavjalov1222c962014-07-16 00:54:13 +0700558 Assert.assertEquals(Math.max(Float.MIN_VALUE, Float.MAX_VALUE), Float.MAX_VALUE);
xueliang.zhongc032e742016-03-28 16:44:32 +0100559 // Should not have flush-to-zero behavior.
560 Assert.assertEquals(Math.max(Float.MIN_VALUE, 0.0f), Float.MIN_VALUE);
561 Assert.assertEquals(Math.max(Float.MIN_VALUE, Float.MIN_VALUE), Float.MIN_VALUE);
Serban Constantinescu23abec92014-07-02 16:13:38 +0100562 }
563
564 public static void test_Math_min_D() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800565 Math.min(1.0d, Double.NaN);
Alexei Zavjalov1222c962014-07-16 00:54:13 +0700566 Assert.assertTrue(Double.isNaN(Math.min(1.0d, Double.NaN)));
567 Assert.assertTrue(Double.isNaN(Math.min(Double.NaN, 1.0d)));
568 Assert.assertEquals(Math.min(-0.0d, 0.0d), -0.0d);
569 Assert.assertEquals(Math.min(0.0d, -0.0d), -0.0d);
570 Assert.assertEquals(Math.min(-0.0d, -0.0d), -0.0d);
571 Assert.assertEquals(Math.min(0.0d, 0.0d), 0.0d);
572 Assert.assertEquals(Math.min(1.0d, 0.0d), 0.0d);
573 Assert.assertEquals(Math.min(0.0d, 1.0d), 0.0d);
574 Assert.assertEquals(Math.min(0.0d, Double.MAX_VALUE), 0.0d);
575 Assert.assertEquals(Math.min(Double.MIN_VALUE, 0.0d), 0.0d);
576 Assert.assertEquals(Math.min(Double.MIN_VALUE, Double.MAX_VALUE), Double.MIN_VALUE);
xueliang.zhongc032e742016-03-28 16:44:32 +0100577 // Should not have flush-to-zero behavior.
578 Assert.assertEquals(Math.min(Double.MIN_VALUE, Double.MIN_VALUE), Double.MIN_VALUE);
Serban Constantinescu23abec92014-07-02 16:13:38 +0100579 }
580
581 public static void test_Math_max_D() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800582 Math.max(1.0d, Double.NaN);
Alexei Zavjalov1222c962014-07-16 00:54:13 +0700583 Assert.assertTrue(Double.isNaN(Math.max(1.0d, Double.NaN)));
584 Assert.assertTrue(Double.isNaN(Math.max(Double.NaN, 1.0d)));
585 Assert.assertEquals(Math.max(-0.0d, 0.0d), 0.0d);
586 Assert.assertEquals(Math.max(0.0d, -0.0d), 0.0d);
587 Assert.assertEquals(Math.max(-0.0d, -0.0d), -0.0d);
588 Assert.assertEquals(Math.max(0.0d, 0.0d), 0.0d);
589 Assert.assertEquals(Math.max(1.0d, 0.0d), 1.0d);
590 Assert.assertEquals(Math.max(0.0d, 1.0d), 1.0d);
591 Assert.assertEquals(Math.max(0.0d, Double.MAX_VALUE), Double.MAX_VALUE);
592 Assert.assertEquals(Math.max(Double.MIN_VALUE, 0.0d), Double.MIN_VALUE);
593 Assert.assertEquals(Math.max(Double.MIN_VALUE, Double.MAX_VALUE), Double.MAX_VALUE);
xueliang.zhongc032e742016-03-28 16:44:32 +0100594 // Should not have flush-to-zero behavior.
595 Assert.assertEquals(Math.max(Double.MIN_VALUE, 0.0d), Double.MIN_VALUE);
596 Assert.assertEquals(Math.max(Double.MIN_VALUE, Double.MIN_VALUE), Double.MIN_VALUE);
Serban Constantinescu23abec92014-07-02 16:13:38 +0100597 }
598
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800599 public static void test_Math_sqrt() {
600 Math.sqrt(+4.0);
601 Assert.assertEquals(Math.sqrt(+4.0), +2.0d, 0.0);
602 Assert.assertEquals(Math.sqrt(+49.0), +7.0d, 0.0);
603 Assert.assertEquals(Math.sqrt(+1.44), +1.2d, 0.0);
604 }
605
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100606 public static void test_Math_ceil() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800607 Math.ceil(-0.9);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100608 Assert.assertEquals(Math.ceil(+0.0), +0.0d, 0.0);
609 Assert.assertEquals(Math.ceil(-0.0), -0.0d, 0.0);
610 Assert.assertEquals(Math.ceil(-0.9), -0.0d, 0.0);
611 Assert.assertEquals(Math.ceil(-0.5), -0.0d, 0.0);
612 Assert.assertEquals(Math.ceil(0.0), -0.0d, 0.0);
613 Assert.assertEquals(Math.ceil(+2.0), +2.0d, 0.0);
614 Assert.assertEquals(Math.ceil(+2.1), +3.0d, 0.0);
615 Assert.assertEquals(Math.ceil(+2.5), +3.0d, 0.0);
616 Assert.assertEquals(Math.ceil(+2.9), +3.0d, 0.0);
617 Assert.assertEquals(Math.ceil(+3.0), +3.0d, 0.0);
618 Assert.assertEquals(Math.ceil(-2.0), -2.0d, 0.0);
619 Assert.assertEquals(Math.ceil(-2.1), -2.0d, 0.0);
620 Assert.assertEquals(Math.ceil(-2.5), -2.0d, 0.0);
621 Assert.assertEquals(Math.ceil(-2.9), -2.0d, 0.0);
622 Assert.assertEquals(Math.ceil(-3.0), -3.0d, 0.0);
Chris Larsen82831092015-08-25 09:06:58 -0700623 // 2^52 - 1.5
624 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0x432FFFFFFFFFFFFDl)),
625 Double.longBitsToDouble(0x432FFFFFFFFFFFFEl), 0.0);
626 // 2^52 - 0.5
627 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0x432FFFFFFFFFFFFFl)),
628 Double.longBitsToDouble(0x4330000000000000l), 0.0);
629 // 2^52
630 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0x4330000000000000l)),
631 Double.longBitsToDouble(0x4330000000000000l), 0.0);
632 // 2^53 - 1
633 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0x433FFFFFFFFFFFFFl)),
634 Double.longBitsToDouble(0x433FFFFFFFFFFFFFl), 0.0);
635 // 2^53
636 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0x4340000000000000l)),
637 Double.longBitsToDouble(0x4340000000000000l), 0.0);
638 // 2^63 - 2^10
639 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0x43DFFFFFFFFFFFFFl)),
640 Double.longBitsToDouble(0x43DFFFFFFFFFFFFFl), 0.0);
641 // 2^63
642 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0x43E0000000000000l)),
643 Double.longBitsToDouble(0x43E0000000000000l), 0.0);
644 // 2^64
645 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0x43F0000000000000l)),
646 Double.longBitsToDouble(0x43F0000000000000l), 0.0);
647 // -(2^52 - 1.5)
648 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0xC32FFFFFFFFFFFFDl)),
649 Double.longBitsToDouble(0xC32FFFFFFFFFFFFCl), 0.0);
650 // -(2^52 - 0.5)
651 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0xC32FFFFFFFFFFFFFl)),
652 Double.longBitsToDouble(0xC32FFFFFFFFFFFFEl), 0.0);
653 // -2^52
654 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0xC330000000000000l)),
655 Double.longBitsToDouble(0xC330000000000000l), 0.0);
656 // -(2^53 - 1)
657 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0xC33FFFFFFFFFFFFFl)),
658 Double.longBitsToDouble(0xC33FFFFFFFFFFFFFl), 0.0);
659 // -2^53
660 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0xC340000000000000l)),
661 Double.longBitsToDouble(0xC340000000000000l), 0.0);
662 // -(2^63 - 2^10)
663 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0xC3DFFFFFFFFFFFFFl)),
664 Double.longBitsToDouble(0xC3DFFFFFFFFFFFFFl), 0.0);
665 // -2^63
666 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0xC3E0000000000000l)),
667 Double.longBitsToDouble(0xC3E0000000000000l), 0.0);
668 // -2^64
669 Assert.assertEquals(Math.ceil(Double.longBitsToDouble(0xC3F0000000000000l)),
670 Double.longBitsToDouble(0xC3F0000000000000l), 0.0);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100671 Assert.assertEquals(Math.ceil(Double.NaN), Double.NaN, 0.0);
672 Assert.assertEquals(Math.ceil(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0);
673 Assert.assertEquals(Math.ceil(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0);
674 }
675
676 public static void test_Math_floor() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800677 Math.floor(+2.1);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100678 Assert.assertEquals(Math.floor(+0.0), +0.0d, 0.0);
679 Assert.assertEquals(Math.floor(-0.0), -0.0d, 0.0);
680 Assert.assertEquals(Math.floor(+2.0), +2.0d, 0.0);
681 Assert.assertEquals(Math.floor(+2.1), +2.0d, 0.0);
682 Assert.assertEquals(Math.floor(+2.5), +2.0d, 0.0);
683 Assert.assertEquals(Math.floor(+2.9), +2.0d, 0.0);
684 Assert.assertEquals(Math.floor(+3.0), +3.0d, 0.0);
685 Assert.assertEquals(Math.floor(-2.0), -2.0d, 0.0);
686 Assert.assertEquals(Math.floor(-2.1), -3.0d, 0.0);
687 Assert.assertEquals(Math.floor(-2.5), -3.0d, 0.0);
688 Assert.assertEquals(Math.floor(-2.9), -3.0d, 0.0);
689 Assert.assertEquals(Math.floor(-3.0), -3.0d, 0.0);
Chris Larsen82831092015-08-25 09:06:58 -0700690 // 2^52 - 1.5
691 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0x432FFFFFFFFFFFFDl)),
692 Double.longBitsToDouble(0x432FFFFFFFFFFFFCl), 0.0);
693 // 2^52 - 0.5
694 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0x432FFFFFFFFFFFFFl)),
695 Double.longBitsToDouble(0x432FFFFFFFFFFFFEl), 0.0);
696 // 2^52
697 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0x4330000000000000l)),
698 Double.longBitsToDouble(0x4330000000000000l), 0.0);
699 // 2^53 - 1
700 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0x433FFFFFFFFFFFFFl)),
701 Double.longBitsToDouble(0x433FFFFFFFFFFFFFl), 0.0);
702 // 2^53
703 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0x4340000000000000l)),
704 Double.longBitsToDouble(0x4340000000000000l), 0.0);
705 // 2^63 - 2^10
706 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0x43DFFFFFFFFFFFFFl)),
707 Double.longBitsToDouble(0x43DFFFFFFFFFFFFFl), 0.0);
708 // 2^63
709 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0x43E0000000000000l)),
710 Double.longBitsToDouble(0x43E0000000000000l), 0.0);
711 // 2^64
712 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0x43F0000000000000l)),
713 Double.longBitsToDouble(0x43F0000000000000l), 0.0);
714 // -(2^52 - 1.5)
715 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0xC32FFFFFFFFFFFFDl)),
716 Double.longBitsToDouble(0xC32FFFFFFFFFFFFEl), 0.0);
717 // -(2^52 - 0.5)
718 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0xC32FFFFFFFFFFFFFl)),
719 Double.longBitsToDouble(0xC330000000000000l), 0.0);
720 // -2^52
721 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0xC330000000000000l)),
722 Double.longBitsToDouble(0xC330000000000000l), 0.0);
723 // -(2^53 - 1)
724 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0xC33FFFFFFFFFFFFFl)),
725 Double.longBitsToDouble(0xC33FFFFFFFFFFFFFl), 0.0);
726 // -2^53
727 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0xC340000000000000l)),
728 Double.longBitsToDouble(0xC340000000000000l), 0.0);
729 // -(2^63 - 2^10)
730 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0xC3DFFFFFFFFFFFFFl)),
731 Double.longBitsToDouble(0xC3DFFFFFFFFFFFFFl), 0.0);
732 // -2^63
733 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0xC3E0000000000000l)),
734 Double.longBitsToDouble(0xC3E0000000000000l), 0.0);
735 // -2^64
736 Assert.assertEquals(Math.floor(Double.longBitsToDouble(0xC3F0000000000000l)),
737 Double.longBitsToDouble(0xC3F0000000000000l), 0.0);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100738 Assert.assertEquals(Math.floor(Double.NaN), Double.NaN, 0.0);
739 Assert.assertEquals(Math.floor(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0);
740 Assert.assertEquals(Math.floor(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0);
741 }
742
743 public static void test_Math_rint() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800744 Math.rint(+2.1);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100745 Assert.assertEquals(Math.rint(+0.0), +0.0d, 0.0);
746 Assert.assertEquals(Math.rint(-0.0), -0.0d, 0.0);
xueliang.zhong6099d5e2016-04-20 18:44:56 +0100747 Assert.assertEquals(Math.rint(+0.5), +0.0d, 0.0); // expects tie-to-even
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100748 Assert.assertEquals(Math.rint(+2.0), +2.0d, 0.0);
749 Assert.assertEquals(Math.rint(+2.1), +2.0d, 0.0);
xueliang.zhong6099d5e2016-04-20 18:44:56 +0100750 Assert.assertEquals(Math.rint(+2.5), +2.0d, 0.0); // expects tie-to-even
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100751 Assert.assertEquals(Math.rint(+2.9), +3.0d, 0.0);
752 Assert.assertEquals(Math.rint(+3.0), +3.0d, 0.0);
xueliang.zhong6099d5e2016-04-20 18:44:56 +0100753 Assert.assertEquals(Math.rint(+3.5), +4.0d, 0.0); // expects tie-to-even
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100754 Assert.assertEquals(Math.rint(-2.0), -2.0d, 0.0);
755 Assert.assertEquals(Math.rint(-2.1), -2.0d, 0.0);
xueliang.zhong6099d5e2016-04-20 18:44:56 +0100756 Assert.assertEquals(Math.rint(-2.5), -2.0d, 0.0); // expects tie-to-even
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100757 Assert.assertEquals(Math.rint(-2.9), -3.0d, 0.0);
758 Assert.assertEquals(Math.rint(-3.0), -3.0d, 0.0);
xueliang.zhong6099d5e2016-04-20 18:44:56 +0100759 Assert.assertEquals(Math.rint(-3.5), -4.0d, 0.0); // expects tie-to-even
Chris Larsen82831092015-08-25 09:06:58 -0700760 // 2^52 - 1.5
761 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0x432FFFFFFFFFFFFDl)),
762 Double.longBitsToDouble(0x432FFFFFFFFFFFFCl), 0.0);
763 // 2^52 - 0.5
764 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0x432FFFFFFFFFFFFFl)),
765 Double.longBitsToDouble(0x4330000000000000l), 0.0);
766 // 2^52
767 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0x4330000000000000l)),
768 Double.longBitsToDouble(0x4330000000000000l), 0.0);
769 // 2^53 - 1
770 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0x433FFFFFFFFFFFFFl)),
771 Double.longBitsToDouble(0x433FFFFFFFFFFFFFl), 0.0);
772 // 2^53
773 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0x4340000000000000l)),
774 Double.longBitsToDouble(0x4340000000000000l), 0.0);
775 // 2^63 - 2^10
776 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0x43DFFFFFFFFFFFFFl)),
777 Double.longBitsToDouble(0x43DFFFFFFFFFFFFFl), 0.0);
778 // 2^63
779 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0x43E0000000000000l)),
780 Double.longBitsToDouble(0x43E0000000000000l), 0.0);
781 // 2^64
782 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0x43F0000000000000l)),
783 Double.longBitsToDouble(0x43F0000000000000l), 0.0);
784 // -(2^52 - 1.5)
785 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0xC32FFFFFFFFFFFFDl)),
786 Double.longBitsToDouble(0xC32FFFFFFFFFFFFCl), 0.0);
787 // -(2^52 - 0.5)
788 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0xC32FFFFFFFFFFFFFl)),
789 Double.longBitsToDouble(0xC330000000000000l), 0.0);
790 // -2^52
791 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0xC330000000000000l)),
792 Double.longBitsToDouble(0xC330000000000000l), 0.0);
793 // -(2^53 - 1)
794 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0xC33FFFFFFFFFFFFFl)),
795 Double.longBitsToDouble(0xC33FFFFFFFFFFFFFl), 0.0);
796 // -2^53
797 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0xC340000000000000l)),
798 Double.longBitsToDouble(0xC340000000000000l), 0.0);
799 // -(2^63 - 2^10)
800 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0xC3DFFFFFFFFFFFFFl)),
801 Double.longBitsToDouble(0xC3DFFFFFFFFFFFFFl), 0.0);
802 // -2^63
803 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0xC3E0000000000000l)),
804 Double.longBitsToDouble(0xC3E0000000000000l), 0.0);
805 // -2^64
806 Assert.assertEquals(Math.rint(Double.longBitsToDouble(0xC3F0000000000000l)),
807 Double.longBitsToDouble(0xC3F0000000000000l), 0.0);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100808 Assert.assertEquals(Math.rint(Double.NaN), Double.NaN, 0.0);
809 Assert.assertEquals(Math.rint(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0);
810 Assert.assertEquals(Math.rint(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0);
811 }
812
813 public static void test_Math_round_D() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800814 Math.round(2.1d);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100815 Assert.assertEquals(Math.round(+0.0d), (long)+0.0);
816 Assert.assertEquals(Math.round(-0.0d), (long)+0.0);
817 Assert.assertEquals(Math.round(2.0d), 2l);
818 Assert.assertEquals(Math.round(2.1d), 2l);
819 Assert.assertEquals(Math.round(2.5d), 3l);
820 Assert.assertEquals(Math.round(2.9d), 3l);
821 Assert.assertEquals(Math.round(3.0d), 3l);
822 Assert.assertEquals(Math.round(-2.0d), -2l);
823 Assert.assertEquals(Math.round(-2.1d), -2l);
824 Assert.assertEquals(Math.round(-2.5d), -2l);
825 Assert.assertEquals(Math.round(-2.9d), -3l);
826 Assert.assertEquals(Math.round(-3.0d), -3l);
Yi Kong879ca672015-11-18 14:11:44 +0000827 Assert.assertEquals(Math.round(0.49999999999999994d), 0l);
Chris Larsen7adaab02016-04-21 14:49:20 -0700828 Assert.assertEquals(Math.round(4503599627370495.0d), 4503599627370495l); // 2^52 - 1
829 Assert.assertEquals(Math.round(4503599627370495.5d), 4503599627370496l); // 2^52 - 0.5
830 Assert.assertEquals(Math.round(4503599627370496.0d), 4503599627370496l); // 2^52
831 Assert.assertEquals(Math.round(-4503599627370495.0d), -4503599627370495l); // -(2^52 - 1)
832 Assert.assertEquals(Math.round(-4503599627370495.5d), -4503599627370495l); // -(2^52 - 0.5)
833 Assert.assertEquals(Math.round(-4503599627370496.0d), -4503599627370496l); // -2^52
Hans Boehm92d4f0e2016-02-17 12:14:03 -0800834 Assert.assertEquals(Math.round(9007199254740991.0d), 9007199254740991l); // 2^53 - 1
Chris Larsenf09d5322016-04-22 12:06:34 -0700835 Assert.assertEquals(Math.round(-9007199254740991.0d), -9007199254740991l); // -(2^53 - 1)
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100836 Assert.assertEquals(Math.round(Double.NaN), (long)+0.0d);
837 Assert.assertEquals(Math.round(Long.MAX_VALUE + 1.0d), Long.MAX_VALUE);
838 Assert.assertEquals(Math.round(Long.MIN_VALUE - 1.0d), Long.MIN_VALUE);
Chris Larsen7adaab02016-04-21 14:49:20 -0700839 Assert.assertEquals(Math.round(Double.longBitsToDouble(0x43F0000000000000l)),
840 Long.MAX_VALUE); // 2^64
841 Assert.assertEquals(Math.round(Double.longBitsToDouble(0xC3F0000000000000l)),
842 Long.MIN_VALUE); // -2^64
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100843 Assert.assertEquals(Math.round(Double.POSITIVE_INFINITY), Long.MAX_VALUE);
844 Assert.assertEquals(Math.round(Double.NEGATIVE_INFINITY), Long.MIN_VALUE);
845 }
846
847 public static void test_Math_round_F() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -0800848 Math.round(2.1f);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100849 Assert.assertEquals(Math.round(+0.0f), (int)+0.0);
850 Assert.assertEquals(Math.round(-0.0f), (int)+0.0);
851 Assert.assertEquals(Math.round(2.0f), 2);
852 Assert.assertEquals(Math.round(2.1f), 2);
853 Assert.assertEquals(Math.round(2.5f), 3);
854 Assert.assertEquals(Math.round(2.9f), 3);
855 Assert.assertEquals(Math.round(3.0f), 3);
856 Assert.assertEquals(Math.round(-2.0f), -2);
857 Assert.assertEquals(Math.round(-2.1f), -2);
858 Assert.assertEquals(Math.round(-2.5f), -2);
859 Assert.assertEquals(Math.round(-2.9f), -3);
860 Assert.assertEquals(Math.round(-3.0f), -3);
Chris Larsenb74353a2015-11-20 09:07:09 -0800861 // 0.4999999701976776123046875
862 Assert.assertEquals(Math.round(Float.intBitsToFloat(0x3EFFFFFF)), (int)+0.0f);
Chris Larsenf09d5322016-04-22 12:06:34 -0700863 Assert.assertEquals(Math.round(8388607.0f), 8388607); // 2^23 - 1
864 Assert.assertEquals(Math.round(8388607.5f), 8388608); // 2^23 - 0.5
865 Assert.assertEquals(Math.round(8388608.0f), 8388608); // 2^23
866 Assert.assertEquals(Math.round(-8388607.0f), -8388607); // -(2^23 - 1)
867 Assert.assertEquals(Math.round(-8388607.5f), -8388607); // -(2^23 - 0.5)
868 Assert.assertEquals(Math.round(-8388608.0f), -8388608); // -2^23
Hans Boehm92d4f0e2016-02-17 12:14:03 -0800869 Assert.assertEquals(Math.round(16777215.0f), 16777215); // 2^24 - 1
Chris Larsenf09d5322016-04-22 12:06:34 -0700870 Assert.assertEquals(Math.round(16777216.0f), 16777216); // 2^24
871 Assert.assertEquals(Math.round(-16777215.0f), -16777215); // -(2^24 - 1)
872 Assert.assertEquals(Math.round(-16777216.0f), -16777216); // -2^24
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100873 Assert.assertEquals(Math.round(Float.NaN), (int)+0.0f);
874 Assert.assertEquals(Math.round(Integer.MAX_VALUE + 1.0f), Integer.MAX_VALUE);
875 Assert.assertEquals(Math.round(Integer.MIN_VALUE - 1.0f), Integer.MIN_VALUE);
Chris Larsen7adaab02016-04-21 14:49:20 -0700876 Assert.assertEquals(Math.round(Float.intBitsToFloat(0x4F800000)),
877 Integer.MAX_VALUE); // 2^32
878 Assert.assertEquals(Math.round(Float.intBitsToFloat(0xCF800000)),
879 Integer.MIN_VALUE); // -2^32
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +0100880 Assert.assertEquals(Math.round(Float.POSITIVE_INFINITY), Integer.MAX_VALUE);
881 Assert.assertEquals(Math.round(Float.NEGATIVE_INFINITY), Integer.MIN_VALUE);
882 }
883
Chris Larsen2714fe62016-02-11 14:23:53 -0800884 public static void test_Math_isNaN_D() {
885 // Quiet NaN.
886 Assert.assertTrue(Double.isNaN(Double.longBitsToDouble(0x7FF4000000000000l)));
887 Assert.assertTrue(Double.isNaN(Double.longBitsToDouble(0xFFF4000000000000l)));
888 // Signaling NaN.
889 Assert.assertTrue(Double.isNaN(Double.longBitsToDouble(0x7FF8000000000000l)));
890 Assert.assertTrue(Double.isNaN(Double.longBitsToDouble(0xFFF8000000000000l)));
891 // Distinct from +/- infinity.
892 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0x7FF0000000000000l)));
893 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0xFFF0000000000000l)));
894 // Distinct from normal numbers.
895 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0x7FE0000000000000l)));
896 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0xFFE0000000000000l)));
897 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0x0010000000000000l)));
898 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0x8010000000000000l)));
899 // Distinct from +/- zero.
900 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0x0000000000000000l)));
901 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0x8000000000000000l)));
902 // Distinct from subnormal numbers.
903 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0x0008000000000000l)));
904 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0x8008000000000000l)));
905 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0x0000000000000001l)));
906 Assert.assertFalse(Double.isNaN(Double.longBitsToDouble(0x8000000000000001l)));
907 }
908
909 public static void test_Math_isNaN_F() {
910 // Quiet NaN.
911 Assert.assertTrue(Float.isNaN(Float.intBitsToFloat(0x7FA00000)));
912 Assert.assertTrue(Float.isNaN(Float.intBitsToFloat(0xFFA00000)));
913 // Signaling NaN.
914 Assert.assertTrue(Float.isNaN(Float.intBitsToFloat(0x7FC00000)));
915 Assert.assertTrue(Float.isNaN(Float.intBitsToFloat(0xFFC00000)));
916 // Distinct from +/- infinity.
917 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0x7F800000)));
918 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0xFF800000)));
919 // Distinct from normal numbers.
920 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0x7F000000)));
921 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0xFF000000)));
922 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0x00800000)));
923 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0x80800000)));
924 // Distinct from +/- zero.
925 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0x00000000)));
926 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0x80000000)));
927 // Distinct from subnormal numbers.
928 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0x00400000)));
929 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0x80400000)));
930 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0x00000001)));
931 Assert.assertFalse(Float.isNaN(Float.intBitsToFloat(0x80000001)));
932 }
933
934 public static void test_Math_isInfinite_D() {
935 // Distinct from Quiet NaN.
936 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x7FF4000000000000l)));
937 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0xFFF4000000000000l)));
938 // Distinct from Signaling NaN.
939 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x7FF8000000000000l)));
940 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0xFFF8000000000000l)));
941 // +/- infinity.
942 Assert.assertTrue(Double.isInfinite(Double.longBitsToDouble(0x7FF0000000000000l)));
943 Assert.assertTrue(Double.isInfinite(Double.longBitsToDouble(0xFFF0000000000000l)));
944 // Distinct from normal numbers.
945 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x7FE0000000000000l)));
946 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0xFFE0000000000000l)));
947 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x0010000000000000l)));
948 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x8010000000000000l)));
949 // Distinct from +/- zero.
950 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x0000000000000000l)));
951 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x8000000000000000l)));
952 // Distinct from subnormal numbers.
953 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x0008000000000000l)));
954 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x8008000000000000l)));
955 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x0000000000000001l)));
956 Assert.assertFalse(Double.isInfinite(Double.longBitsToDouble(0x8000000000000001l)));
957 }
958
959 public static void test_Math_isInfinite_F() {
960 // Distinct from Quiet NaN.
961 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x7FA00000)));
962 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0xFFA00000)));
963 // Distinct from Signaling NaN.
964 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x7FC00000)));
965 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0xFFC00000)));
966 // +/- infinity.
967 Assert.assertTrue(Float.isInfinite(Float.intBitsToFloat(0x7F800000)));
968 Assert.assertTrue(Float.isInfinite(Float.intBitsToFloat(0xFF800000)));
969 // Distinct from normal numbers.
970 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x7F000000)));
971 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0xFF000000)));
972 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x00800000)));
973 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x80800000)));
974 // Distinct from +/- zero.
975 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x00000000)));
976 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x80000000)));
977 // Distinct from subnormal numbers.
978 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x00400000)));
979 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x80400000)));
980 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x00000001)));
981 Assert.assertFalse(Float.isInfinite(Float.intBitsToFloat(0x80000001)));
982 }
983
Nikita Iashchenko745da802021-01-20 21:52:54 +0000984 public static void test_Math_multiplyHigh() {
985 Math.multiplyHigh(2L, 3L);
986 Assert.assertEquals(Math.multiplyHigh(2L, 3L), 0L);
987 Assert.assertEquals(Math.multiplyHigh(Long.MAX_VALUE, Long.MAX_VALUE), 4611686018427387903L);
988 }
989
Shalini Salomi Bodapati6545ee32021-11-02 20:01:06 +0530990 public static void test_Math_fma_D() {
991 final double MAX_D = Double.MAX_VALUE;
992 final double MIN_D = Double.MIN_VALUE;
993 Math.fma(3.0, 4.0, 5.0);
994 Assert.assertEquals(Double.compare(Math.fma(3.0, 4.0, 5.0), 17.0), 0);
995 Assert.assertEquals(Double.compare(Math.fma(MAX_D, MIN_D, 1.0), 1.0000000000000009), 0);
996 Assert.assertEquals(Double.compare(Math.fma(MAX_D, MIN_D, 0.0), 8.881784197001251E-16), 0);
997 }
998
999 public static void test_Math_fma_F() {
1000 final float MAX_F = Float.MAX_VALUE;
1001 final float MIN_F = Float.MIN_VALUE;
1002 Math.fma(3.0f, 4.0f, 5.0f);
1003 Assert.assertEquals(Float.compare(Math.fma(3.0f, 4.0f, 5.0f), 17.0f), 0);
1004 Assert.assertEquals(Float.compare(Math.fma(MAX_F, MIN_F, 1.0f), 1.0000005f), 0);
1005 Assert.assertEquals(Float.compare(Math.fma(MAX_F, MIN_F, 0.0f), 4.7683712978141557E-7f), 0);
1006 }
1007
Sebastien Hertzbf1442d2013-03-05 15:12:40 +01001008 public static void test_StrictMath_abs_I() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001009 StrictMath.abs(-1);
Sebastien Hertzbf1442d2013-03-05 15:12:40 +01001010 Assert.assertEquals(StrictMath.abs(0), 0);
1011 Assert.assertEquals(StrictMath.abs(123), 123);
1012 Assert.assertEquals(StrictMath.abs(-123), 123);
1013 Assert.assertEquals(StrictMath.abs(Integer.MAX_VALUE), Integer.MAX_VALUE);
1014 Assert.assertEquals(StrictMath.abs(Integer.MIN_VALUE), Integer.MIN_VALUE);
1015 Assert.assertEquals(StrictMath.abs(Integer.MIN_VALUE - 1), Integer.MAX_VALUE);
1016 Assert.assertEquals(StrictMath.abs(Integer.MIN_VALUE + 1), Integer.MAX_VALUE);
1017 }
1018
1019 public static void test_StrictMath_abs_J() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001020 StrictMath.abs(-1L);
Sebastien Hertzbf1442d2013-03-05 15:12:40 +01001021 Assert.assertEquals(StrictMath.abs(0L), 0L);
1022 Assert.assertEquals(StrictMath.abs(123L), 123L);
1023 Assert.assertEquals(StrictMath.abs(-123L), 123L);
1024 Assert.assertEquals(StrictMath.abs(Long.MAX_VALUE), Long.MAX_VALUE);
1025 Assert.assertEquals(StrictMath.abs(Long.MIN_VALUE), Long.MIN_VALUE);
1026 Assert.assertEquals(StrictMath.abs(Long.MIN_VALUE - 1), Long.MAX_VALUE);
1027 }
1028
Serban Constantinescu23abec92014-07-02 16:13:38 +01001029 public static void test_StrictMath_min_I() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001030 StrictMath.min(1, 0);
Sebastien Hertzbf1442d2013-03-05 15:12:40 +01001031 Assert.assertEquals(StrictMath.min(0, 0), 0);
1032 Assert.assertEquals(StrictMath.min(1, 0), 0);
1033 Assert.assertEquals(StrictMath.min(0, 1), 0);
1034 Assert.assertEquals(StrictMath.min(0, Integer.MAX_VALUE), 0);
1035 Assert.assertEquals(StrictMath.min(Integer.MIN_VALUE, 0), Integer.MIN_VALUE);
1036 Assert.assertEquals(StrictMath.min(Integer.MIN_VALUE, Integer.MAX_VALUE), Integer.MIN_VALUE);
1037 }
1038
Serban Constantinescu23abec92014-07-02 16:13:38 +01001039 public static void test_StrictMath_max_I() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001040 StrictMath.max(1, 0);
Sebastien Hertzbf1442d2013-03-05 15:12:40 +01001041 Assert.assertEquals(StrictMath.max(0, 0), 0);
1042 Assert.assertEquals(StrictMath.max(1, 0), 1);
1043 Assert.assertEquals(StrictMath.max(0, 1), 1);
1044 Assert.assertEquals(StrictMath.max(0, Integer.MAX_VALUE), Integer.MAX_VALUE);
1045 Assert.assertEquals(StrictMath.max(Integer.MIN_VALUE, 0), 0);
1046 Assert.assertEquals(StrictMath.max(Integer.MIN_VALUE, Integer.MAX_VALUE), Integer.MAX_VALUE);
1047 }
1048
Serban Constantinescu23abec92014-07-02 16:13:38 +01001049 public static void test_StrictMath_min_J() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001050 StrictMath.min(1L, 0L);
Serban Constantinescu23abec92014-07-02 16:13:38 +01001051 Assert.assertEquals(StrictMath.min(0L, 0L), 0L);
1052 Assert.assertEquals(StrictMath.min(1L, 0L), 0L);
1053 Assert.assertEquals(StrictMath.min(0L, 1L), 0L);
1054 Assert.assertEquals(StrictMath.min(0L, Long.MAX_VALUE), 0L);
1055 Assert.assertEquals(StrictMath.min(Long.MIN_VALUE, 0L), Long.MIN_VALUE);
1056 Assert.assertEquals(StrictMath.min(Long.MIN_VALUE, Long.MAX_VALUE), Long.MIN_VALUE);
1057 }
1058
1059 public static void test_StrictMath_max_J() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001060 StrictMath.max(1L, 0L);
Serban Constantinescu23abec92014-07-02 16:13:38 +01001061 Assert.assertEquals(StrictMath.max(0L, 0L), 0L);
1062 Assert.assertEquals(StrictMath.max(1L, 0L), 1L);
1063 Assert.assertEquals(StrictMath.max(0L, 1L), 1L);
1064 Assert.assertEquals(StrictMath.max(0L, Long.MAX_VALUE), Long.MAX_VALUE);
1065 Assert.assertEquals(StrictMath.max(Long.MIN_VALUE, 0L), 0L);
1066 Assert.assertEquals(StrictMath.max(Long.MIN_VALUE, Long.MAX_VALUE), Long.MAX_VALUE);
1067 }
1068
1069 public static void test_StrictMath_min_F() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001070 StrictMath.min(1.0f, Float.NaN);
Alexei Zavjalov1222c962014-07-16 00:54:13 +07001071 Assert.assertTrue(Float.isNaN(StrictMath.min(1.0f, Float.NaN)));
1072 Assert.assertTrue(Float.isNaN(StrictMath.min(Float.NaN, 1.0f)));
1073 Assert.assertEquals(StrictMath.min(-0.0f, 0.0f), -0.0f);
1074 Assert.assertEquals(StrictMath.min(0.0f, -0.0f), -0.0f);
1075 Assert.assertEquals(StrictMath.min(-0.0f, -0.0f), -0.0f);
1076 Assert.assertEquals(StrictMath.min(0.0f, 0.0f), 0.0f);
1077 Assert.assertEquals(StrictMath.min(1.0f, 0.0f), 0.0f);
1078 Assert.assertEquals(StrictMath.min(0.0f, 1.0f), 0.0f);
1079 Assert.assertEquals(StrictMath.min(0.0f, Float.MAX_VALUE), 0.0f);
1080 Assert.assertEquals(StrictMath.min(Float.MIN_VALUE, 0.0f), 0.0f);
1081 Assert.assertEquals(StrictMath.min(Float.MIN_VALUE, Float.MAX_VALUE), Float.MIN_VALUE);
Serban Constantinescu23abec92014-07-02 16:13:38 +01001082 }
1083
1084 public static void test_StrictMath_max_F() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001085 StrictMath.max(1.0f, Float.NaN);
Alexei Zavjalov1222c962014-07-16 00:54:13 +07001086 Assert.assertTrue(Float.isNaN(StrictMath.max(1.0f, Float.NaN)));
1087 Assert.assertTrue(Float.isNaN(StrictMath.max(Float.NaN, 1.0f)));
1088 Assert.assertEquals(StrictMath.max(-0.0f, 0.0f), 0.0f);
1089 Assert.assertEquals(StrictMath.max(0.0f, -0.0f), 0.0f);
1090 Assert.assertEquals(StrictMath.max(-0.0f, -0.0f), -0.0f);
1091 Assert.assertEquals(StrictMath.max(0.0f, 0.0f), 0.0f);
1092 Assert.assertEquals(StrictMath.max(1.0f, 0.0f), 1.0f);
1093 Assert.assertEquals(StrictMath.max(0.0f, 1.0f), 1.0f);
1094 Assert.assertEquals(StrictMath.max(0.0f, Float.MAX_VALUE), Float.MAX_VALUE);
1095 Assert.assertEquals(StrictMath.max(Float.MIN_VALUE, 0.0f), Float.MIN_VALUE);
1096 Assert.assertEquals(StrictMath.max(Float.MIN_VALUE, Float.MAX_VALUE), Float.MAX_VALUE);
Serban Constantinescu23abec92014-07-02 16:13:38 +01001097 }
1098
1099 public static void test_StrictMath_min_D() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001100 StrictMath.min(1.0d, Double.NaN);
Alexei Zavjalov1222c962014-07-16 00:54:13 +07001101 Assert.assertTrue(Double.isNaN(StrictMath.min(1.0d, Double.NaN)));
1102 Assert.assertTrue(Double.isNaN(StrictMath.min(Double.NaN, 1.0d)));
1103 Assert.assertEquals(StrictMath.min(-0.0d, 0.0d), -0.0d);
1104 Assert.assertEquals(StrictMath.min(0.0d, -0.0d), -0.0d);
1105 Assert.assertEquals(StrictMath.min(-0.0d, -0.0d), -0.0d);
1106 Assert.assertEquals(StrictMath.min(0.0d, 0.0d), 0.0d);
1107 Assert.assertEquals(StrictMath.min(1.0d, 0.0d), 0.0d);
1108 Assert.assertEquals(StrictMath.min(0.0d, 1.0d), 0.0d);
1109 Assert.assertEquals(StrictMath.min(0.0d, Double.MAX_VALUE), 0.0d);
1110 Assert.assertEquals(StrictMath.min(Double.MIN_VALUE, 0.0d), 0.0d);
1111 Assert.assertEquals(StrictMath.min(Double.MIN_VALUE, Double.MAX_VALUE), Double.MIN_VALUE);
Serban Constantinescu23abec92014-07-02 16:13:38 +01001112 }
1113
1114 public static void test_StrictMath_max_D() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001115 StrictMath.max(1.0d, Double.NaN);
Alexei Zavjalov1222c962014-07-16 00:54:13 +07001116 Assert.assertTrue(Double.isNaN(StrictMath.max(1.0d, Double.NaN)));
1117 Assert.assertTrue(Double.isNaN(StrictMath.max(Double.NaN, 1.0d)));
1118 Assert.assertEquals(StrictMath.max(-0.0d, 0.0d), 0.0d);
1119 Assert.assertEquals(StrictMath.max(0.0d, -0.0d), 0.0d);
1120 Assert.assertEquals(StrictMath.max(-0.0d, -0.0d), -0.0d);
1121 Assert.assertEquals(StrictMath.max(0.0d, 0.0d), 0.0d);
1122 Assert.assertEquals(StrictMath.max(1.0d, 0.0d), 1.0d);
1123 Assert.assertEquals(StrictMath.max(0.0d, 1.0d), 1.0d);
1124 Assert.assertEquals(StrictMath.max(0.0d, Double.MAX_VALUE), Double.MAX_VALUE);
1125 Assert.assertEquals(StrictMath.max(Double.MIN_VALUE, 0.0d), Double.MIN_VALUE);
1126 Assert.assertEquals(StrictMath.max(Double.MIN_VALUE, Double.MAX_VALUE), Double.MAX_VALUE);
Serban Constantinescu23abec92014-07-02 16:13:38 +01001127 }
1128
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001129 public static void test_StrictMath_sqrt() {
1130 StrictMath.sqrt(+4.0);
1131 Assert.assertEquals(StrictMath.sqrt(+4.0), +2.0d, 0.0);
1132 Assert.assertEquals(StrictMath.sqrt(+49.0), +7.0d, 0.0);
1133 Assert.assertEquals(StrictMath.sqrt(+1.44), +1.2d, 0.0);
1134 }
1135
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +01001136 public static void test_StrictMath_ceil() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001137 StrictMath.ceil(-0.9);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +01001138 Assert.assertEquals(StrictMath.ceil(+0.0), +0.0d, 0.0);
1139 Assert.assertEquals(StrictMath.ceil(-0.0), -0.0d, 0.0);
1140 Assert.assertEquals(StrictMath.ceil(-0.9), -0.0d, 0.0);
1141 Assert.assertEquals(StrictMath.ceil(-0.5), -0.0d, 0.0);
1142 Assert.assertEquals(StrictMath.ceil(0.0), -0.0d, 0.0);
1143 Assert.assertEquals(StrictMath.ceil(+2.0), +2.0d, 0.0);
1144 Assert.assertEquals(StrictMath.ceil(+2.1), +3.0d, 0.0);
1145 Assert.assertEquals(StrictMath.ceil(+2.5), +3.0d, 0.0);
1146 Assert.assertEquals(StrictMath.ceil(+2.9), +3.0d, 0.0);
1147 Assert.assertEquals(StrictMath.ceil(+3.0), +3.0d, 0.0);
1148 Assert.assertEquals(StrictMath.ceil(-2.0), -2.0d, 0.0);
1149 Assert.assertEquals(StrictMath.ceil(-2.1), -2.0d, 0.0);
1150 Assert.assertEquals(StrictMath.ceil(-2.5), -2.0d, 0.0);
1151 Assert.assertEquals(StrictMath.ceil(-2.9), -2.0d, 0.0);
1152 Assert.assertEquals(StrictMath.ceil(-3.0), -3.0d, 0.0);
1153 Assert.assertEquals(StrictMath.ceil(Double.NaN), Double.NaN, 0.0);
1154 Assert.assertEquals(StrictMath.ceil(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0);
1155 Assert.assertEquals(StrictMath.ceil(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0);
1156 }
1157
1158 public static void test_StrictMath_floor() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001159 StrictMath.floor(+2.1);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +01001160 Assert.assertEquals(StrictMath.floor(+0.0), +0.0d, 0.0);
1161 Assert.assertEquals(StrictMath.floor(-0.0), -0.0d, 0.0);
1162 Assert.assertEquals(StrictMath.floor(+2.0), +2.0d, 0.0);
1163 Assert.assertEquals(StrictMath.floor(+2.1), +2.0d, 0.0);
1164 Assert.assertEquals(StrictMath.floor(+2.5), +2.0d, 0.0);
1165 Assert.assertEquals(StrictMath.floor(+2.9), +2.0d, 0.0);
1166 Assert.assertEquals(StrictMath.floor(+3.0), +3.0d, 0.0);
1167 Assert.assertEquals(StrictMath.floor(-2.0), -2.0d, 0.0);
1168 Assert.assertEquals(StrictMath.floor(-2.1), -3.0d, 0.0);
1169 Assert.assertEquals(StrictMath.floor(-2.5), -3.0d, 0.0);
1170 Assert.assertEquals(StrictMath.floor(-2.9), -3.0d, 0.0);
1171 Assert.assertEquals(StrictMath.floor(-3.0), -3.0d, 0.0);
1172 Assert.assertEquals(StrictMath.floor(Double.NaN), Double.NaN, 0.0);
1173 Assert.assertEquals(StrictMath.floor(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0);
1174 Assert.assertEquals(StrictMath.floor(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0);
1175 }
1176
1177 public static void test_StrictMath_rint() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001178 StrictMath.rint(+2.1);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +01001179 Assert.assertEquals(StrictMath.rint(+0.0), +0.0d, 0.0);
1180 Assert.assertEquals(StrictMath.rint(-0.0), -0.0d, 0.0);
1181 Assert.assertEquals(StrictMath.rint(+2.0), +2.0d, 0.0);
1182 Assert.assertEquals(StrictMath.rint(+2.1), +2.0d, 0.0);
1183 Assert.assertEquals(StrictMath.rint(+2.5), +2.0d, 0.0);
1184 Assert.assertEquals(StrictMath.rint(+2.9), +3.0d, 0.0);
1185 Assert.assertEquals(StrictMath.rint(+3.0), +3.0d, 0.0);
1186 Assert.assertEquals(StrictMath.rint(-2.0), -2.0d, 0.0);
1187 Assert.assertEquals(StrictMath.rint(-2.1), -2.0d, 0.0);
1188 Assert.assertEquals(StrictMath.rint(-2.5), -2.0d, 0.0);
1189 Assert.assertEquals(StrictMath.rint(-2.9), -3.0d, 0.0);
1190 Assert.assertEquals(StrictMath.rint(-3.0), -3.0d, 0.0);
1191 Assert.assertEquals(StrictMath.rint(Double.NaN), Double.NaN, 0.0);
1192 Assert.assertEquals(StrictMath.rint(Double.POSITIVE_INFINITY), Double.POSITIVE_INFINITY, 0.0);
1193 Assert.assertEquals(StrictMath.rint(Double.NEGATIVE_INFINITY), Double.NEGATIVE_INFINITY, 0.0);
1194 }
1195
1196 public static void test_StrictMath_round_D() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001197 StrictMath.round(2.1d);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +01001198 Assert.assertEquals(StrictMath.round(+0.0d), (long)+0.0);
1199 Assert.assertEquals(StrictMath.round(-0.0d), (long)+0.0);
1200 Assert.assertEquals(StrictMath.round(2.0d), 2l);
1201 Assert.assertEquals(StrictMath.round(2.1d), 2l);
1202 Assert.assertEquals(StrictMath.round(2.5d), 3l);
1203 Assert.assertEquals(StrictMath.round(2.9d), 3l);
1204 Assert.assertEquals(StrictMath.round(3.0d), 3l);
1205 Assert.assertEquals(StrictMath.round(-2.0d), -2l);
1206 Assert.assertEquals(StrictMath.round(-2.1d), -2l);
1207 Assert.assertEquals(StrictMath.round(-2.5d), -2l);
1208 Assert.assertEquals(StrictMath.round(-2.9d), -3l);
1209 Assert.assertEquals(StrictMath.round(-3.0d), -3l);
Yi Kong879ca672015-11-18 14:11:44 +00001210 Assert.assertEquals(StrictMath.round(0.49999999999999994d), 0l);
Chris Larsen7adaab02016-04-21 14:49:20 -07001211 Assert.assertEquals(StrictMath.round(4503599627370495.0d), 4503599627370495l); // 2^52 - 1
1212 Assert.assertEquals(StrictMath.round(4503599627370495.5d), 4503599627370496l); // 2^52 - 0.5
1213 Assert.assertEquals(StrictMath.round(4503599627370496.0d), 4503599627370496l); // 2^52
1214 Assert.assertEquals(StrictMath.round(-4503599627370495.0d), -4503599627370495l); // -(2^52 - 1)
1215 Assert.assertEquals(StrictMath.round(-4503599627370495.5d), -4503599627370495l); // -(2^52 - 0.5)
1216 Assert.assertEquals(StrictMath.round(-4503599627370496.0d), -4503599627370496l); // -2^52
Vladimir Marko9c1c06a2016-02-25 17:50:41 +00001217 Assert.assertEquals(StrictMath.round(9007199254740991.0d), 9007199254740991l); // 2^53 - 1
Chris Larsenf09d5322016-04-22 12:06:34 -07001218 Assert.assertEquals(StrictMath.round(-9007199254740991.0d), -9007199254740991l); // -(2^53 - 1)
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +01001219 Assert.assertEquals(StrictMath.round(Double.NaN), (long)+0.0d);
1220 Assert.assertEquals(StrictMath.round(Long.MAX_VALUE + 1.0d), Long.MAX_VALUE);
1221 Assert.assertEquals(StrictMath.round(Long.MIN_VALUE - 1.0d), Long.MIN_VALUE);
Chris Larsen7adaab02016-04-21 14:49:20 -07001222 Assert.assertEquals(StrictMath.round(Double.longBitsToDouble(0x43F0000000000000l)),
1223 Long.MAX_VALUE); // 2^64
1224 Assert.assertEquals(StrictMath.round(Double.longBitsToDouble(0xC3F0000000000000l)),
1225 Long.MIN_VALUE); // -2^64
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +01001226 Assert.assertEquals(StrictMath.round(Double.POSITIVE_INFINITY), Long.MAX_VALUE);
1227 Assert.assertEquals(StrictMath.round(Double.NEGATIVE_INFINITY), Long.MIN_VALUE);
1228 }
1229
1230 public static void test_StrictMath_round_F() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001231 StrictMath.round(2.1f);
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +01001232 Assert.assertEquals(StrictMath.round(+0.0f), (int)+0.0);
1233 Assert.assertEquals(StrictMath.round(-0.0f), (int)+0.0);
1234 Assert.assertEquals(StrictMath.round(2.0f), 2);
1235 Assert.assertEquals(StrictMath.round(2.1f), 2);
1236 Assert.assertEquals(StrictMath.round(2.5f), 3);
1237 Assert.assertEquals(StrictMath.round(2.9f), 3);
1238 Assert.assertEquals(StrictMath.round(3.0f), 3);
1239 Assert.assertEquals(StrictMath.round(-2.0f), -2);
1240 Assert.assertEquals(StrictMath.round(-2.1f), -2);
1241 Assert.assertEquals(StrictMath.round(-2.5f), -2);
1242 Assert.assertEquals(StrictMath.round(-2.9f), -3);
1243 Assert.assertEquals(StrictMath.round(-3.0f), -3);
Chris Larsenb74353a2015-11-20 09:07:09 -08001244 // 0.4999999701976776123046875
1245 Assert.assertEquals(StrictMath.round(Float.intBitsToFloat(0x3EFFFFFF)), (int)+0.0f);
Chris Larsenf09d5322016-04-22 12:06:34 -07001246 Assert.assertEquals(StrictMath.round(8388607.0f), 8388607); // 2^23 - 1
1247 Assert.assertEquals(StrictMath.round(8388607.5f), 8388608); // 2^23 - 0.5
1248 Assert.assertEquals(StrictMath.round(8388608.0f), 8388608); // 2^23
1249 Assert.assertEquals(StrictMath.round(-8388607.0f), -8388607); // -(2^23 - 1)
1250 Assert.assertEquals(StrictMath.round(-8388607.5f), -8388607); // -(2^23 - 0.5)
1251 Assert.assertEquals(StrictMath.round(-8388608.0f), -8388608); // -2^23
Vladimir Marko9c1c06a2016-02-25 17:50:41 +00001252 Assert.assertEquals(StrictMath.round(16777215.0f), 16777215); // 2^24 - 1
Chris Larsenf09d5322016-04-22 12:06:34 -07001253 Assert.assertEquals(StrictMath.round(16777216.0f), 16777216); // 2^24
1254 Assert.assertEquals(StrictMath.round(-16777215.0f), -16777215); // -(2^24 - 1)
1255 Assert.assertEquals(StrictMath.round(-16777216.0f), -16777216); // -2^24
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +01001256 Assert.assertEquals(StrictMath.round(Float.NaN), (int)+0.0f);
1257 Assert.assertEquals(StrictMath.round(Integer.MAX_VALUE + 1.0f), Integer.MAX_VALUE);
1258 Assert.assertEquals(StrictMath.round(Integer.MIN_VALUE - 1.0f), Integer.MIN_VALUE);
Chris Larsen7adaab02016-04-21 14:49:20 -07001259 Assert.assertEquals(StrictMath.round(Float.intBitsToFloat(0x4F800000)),
1260 Integer.MAX_VALUE); // 2^32
1261 Assert.assertEquals(StrictMath.round(Float.intBitsToFloat(0xCF800000)),
1262 Integer.MIN_VALUE); // -2^32
Serban Constantinescu2eba1fa2014-07-31 19:07:17 +01001263 Assert.assertEquals(StrictMath.round(Float.POSITIVE_INFINITY), Integer.MAX_VALUE);
1264 Assert.assertEquals(StrictMath.round(Float.NEGATIVE_INFINITY), Integer.MIN_VALUE);
1265 }
1266
Elliott Hughes28c384b2012-06-15 16:46:25 -07001267 public static void test_Float_floatToRawIntBits() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001268 Float.floatToRawIntBits(-1.0f);
Elliott Hughes28c384b2012-06-15 16:46:25 -07001269 Assert.assertEquals(Float.floatToRawIntBits(-1.0f), 0xbf800000);
1270 Assert.assertEquals(Float.floatToRawIntBits(0.0f), 0);
1271 Assert.assertEquals(Float.floatToRawIntBits(1.0f), 0x3f800000);
1272 Assert.assertEquals(Float.floatToRawIntBits(Float.NaN), 0x7fc00000);
1273 Assert.assertEquals(Float.floatToRawIntBits(Float.POSITIVE_INFINITY), 0x7f800000);
1274 Assert.assertEquals(Float.floatToRawIntBits(Float.NEGATIVE_INFINITY), 0xff800000);
1275 }
1276
1277 public static void test_Float_intBitsToFloat() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001278 Float.intBitsToFloat(0xbf800000);
Elliott Hughes28c384b2012-06-15 16:46:25 -07001279 Assert.assertEquals(Float.intBitsToFloat(0xbf800000), -1.0f);
1280 Assert.assertEquals(Float.intBitsToFloat(0x00000000), 0.0f);
1281 Assert.assertEquals(Float.intBitsToFloat(0x3f800000), 1.0f);
1282 Assert.assertEquals(Float.intBitsToFloat(0x7fc00000), Float.NaN);
1283 Assert.assertEquals(Float.intBitsToFloat(0x7f800000), Float.POSITIVE_INFINITY);
1284 Assert.assertEquals(Float.intBitsToFloat(0xff800000), Float.NEGATIVE_INFINITY);
1285 }
1286
1287 public static void test_Double_doubleToRawLongBits() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001288 Double.doubleToRawLongBits(-1.0);
Elliott Hughes28c384b2012-06-15 16:46:25 -07001289 Assert.assertEquals(Double.doubleToRawLongBits(-1.0), 0xbff0000000000000L);
1290 Assert.assertEquals(Double.doubleToRawLongBits(0.0), 0x0000000000000000L);
1291 Assert.assertEquals(Double.doubleToRawLongBits(1.0), 0x3ff0000000000000L);
1292 Assert.assertEquals(Double.doubleToRawLongBits(Double.NaN), 0x7ff8000000000000L);
1293 Assert.assertEquals(Double.doubleToRawLongBits(Double.POSITIVE_INFINITY), 0x7ff0000000000000L);
1294 Assert.assertEquals(Double.doubleToRawLongBits(Double.NEGATIVE_INFINITY), 0xfff0000000000000L);
1295 }
1296
1297 public static void test_Double_longBitsToDouble() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001298 Double.longBitsToDouble(0xbff0000000000000L);
Elliott Hughes28c384b2012-06-15 16:46:25 -07001299 Assert.assertEquals(Double.longBitsToDouble(0xbff0000000000000L), -1.0);
1300 Assert.assertEquals(Double.longBitsToDouble(0x0000000000000000L), 0.0);
1301 Assert.assertEquals(Double.longBitsToDouble(0x3ff0000000000000L), 1.0);
1302 Assert.assertEquals(Double.longBitsToDouble(0x7ff8000000000000L), Double.NaN);
1303 Assert.assertEquals(Double.longBitsToDouble(0x7ff0000000000000L), Double.POSITIVE_INFINITY);
1304 Assert.assertEquals(Double.longBitsToDouble(0xfff0000000000000L), Double.NEGATIVE_INFINITY);
1305 }
Serban Constantinescu23abec92014-07-02 16:13:38 +01001306
Zheng Xua3fe7422014-07-09 14:03:15 +08001307 public static void test_Short_reverseBytes() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001308 Short.reverseBytes((short)0x1357);
Zheng Xua3fe7422014-07-09 14:03:15 +08001309 Assert.assertEquals(Short.reverseBytes((short)0x0000), (short)0x0000);
1310 Assert.assertEquals(Short.reverseBytes((short)0xffff), (short)0xffff);
1311 Assert.assertEquals(Short.reverseBytes((short)0x8000), (short)0x0080);
1312 Assert.assertEquals(Short.reverseBytes((short)0x0080), (short)0x8000);
1313 Assert.assertEquals(Short.reverseBytes((short)0x0123), (short)0x2301);
1314 Assert.assertEquals(Short.reverseBytes((short)0x4567), (short)0x6745);
1315 Assert.assertEquals(Short.reverseBytes((short)0x89ab), (short)0xab89);
1316 Assert.assertEquals(Short.reverseBytes((short)0xcdef), (short)0xefcd);
1317 }
1318
1319 public static void test_Integer_reverseBytes() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001320 Integer.reverseBytes(0x13579bdf);
Zheng Xua3fe7422014-07-09 14:03:15 +08001321 Assert.assertEquals(Integer.reverseBytes(0x00000000), 0x00000000);
1322 Assert.assertEquals(Integer.reverseBytes(0xffffffff), 0xffffffff);
1323 Assert.assertEquals(Integer.reverseBytes(0x80000000), 0x00000080);
1324 Assert.assertEquals(Integer.reverseBytes(0x00000080), 0x80000000);
1325 Assert.assertEquals(Integer.reverseBytes(0x01234567), 0x67452301);
1326 Assert.assertEquals(Integer.reverseBytes(0x89abcdef), 0xefcdab89);
1327 }
1328
1329 public static void test_Long_reverseBytes() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001330 Long.reverseBytes(0x13579bdf2468ace0L);
Zheng Xua3fe7422014-07-09 14:03:15 +08001331 Assert.assertEquals(Long.reverseBytes(0x0000000000000000L), 0x0000000000000000L);
1332 Assert.assertEquals(Long.reverseBytes(0xffffffffffffffffL), 0xffffffffffffffffL);
1333 Assert.assertEquals(Long.reverseBytes(0x8000000000000000L), 0x0000000000000080L);
1334 Assert.assertEquals(Long.reverseBytes(0x0000000000000080L), 0x8000000000000000L);
1335 Assert.assertEquals(Long.reverseBytes(0x0123456789abcdefL), 0xefcdab8967452301L);
1336 }
1337
Serban Constantinescu23abec92014-07-02 16:13:38 +01001338 public static void test_Integer_reverse() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001339 Integer.reverse(0x12345678);
Serban Constantinescu23abec92014-07-02 16:13:38 +01001340 Assert.assertEquals(Integer.reverse(1), 0x80000000);
1341 Assert.assertEquals(Integer.reverse(-1), 0xffffffff);
1342 Assert.assertEquals(Integer.reverse(0), 0);
1343 Assert.assertEquals(Integer.reverse(0x12345678), 0x1e6a2c48);
1344 Assert.assertEquals(Integer.reverse(0x87654321), 0x84c2a6e1);
1345 Assert.assertEquals(Integer.reverse(Integer.MAX_VALUE), 0xfffffffe);
1346 Assert.assertEquals(Integer.reverse(Integer.MIN_VALUE), 1);
1347 }
1348
1349 public static void test_Long_reverse() {
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001350 Long.reverse(0x1234567812345678L);
Serban Constantinescu23abec92014-07-02 16:13:38 +01001351 Assert.assertEquals(Long.reverse(1L), 0x8000000000000000L);
1352 Assert.assertEquals(Long.reverse(-1L), 0xffffffffffffffffL);
1353 Assert.assertEquals(Long.reverse(0L), 0L);
Zheng Xua3fe7422014-07-09 14:03:15 +08001354 Assert.assertEquals(Long.reverse(0x1234567812345678L), 0x1e6a2c481e6a2c48L);
1355 Assert.assertEquals(Long.reverse(0x8765432187654321L), 0x84c2a6e184c2a6e1L);
1356 Assert.assertEquals(Long.reverse(Long.MAX_VALUE), 0xfffffffffffffffeL);
Serban Constantinescu23abec92014-07-02 16:13:38 +01001357 Assert.assertEquals(Long.reverse(Long.MIN_VALUE), 1L);
Andreas Gampe575422f2015-07-07 13:25:58 -07001358
1359 Assert.assertEquals(test_Long_reverse_b22324327(0xaaaaaaaaaaaaaaaaL, 0x5555555555555555L),
1360 157472205507277347L);
1361 }
1362
1363 // A bit more complicated than the above. Use local variables to stress register allocation.
1364 private static long test_Long_reverse_b22324327(long l1, long l2) {
1365 // A couple of local integers. Use them in a loop, so they get promoted.
1366 int i1 = 0, i2 = 1, i3 = 2, i4 = 3, i5 = 4, i6 = 5, i7 = 6, i8 = 7;
1367 for (int k = 0; k < 10; k++) {
1368 i1 += 1;
1369 i2 += 2;
1370 i3 += 3;
1371 i4 += 4;
1372 i5 += 5;
1373 i6 += 6;
1374 i7 += 7;
1375 i8 += 8;
1376 }
1377
1378 // Do the Long.reverse() calls, save the results.
1379 long r1 = Long.reverse(l1);
1380 long r2 = Long.reverse(l2);
1381
1382 // Some more looping with the ints.
1383 for (int k = 0; k < 10; k++) {
1384 i1 += 1;
1385 i2 += 2;
1386 i3 += 3;
1387 i4 += 4;
1388 i5 += 5;
1389 i6 += 6;
1390 i7 += 7;
1391 i8 += 8;
1392 }
1393
1394 // Include everything in the result, so things are kept live. Try to be a little bit clever to
1395 // avoid things being folded somewhere.
1396 return (r1 / i1) + (r2 / i2) + i3 + i4 + i5 + i6 + i7 + i8;
Serban Constantinescu23abec92014-07-02 16:13:38 +01001397 }
1398
Mark Mendelld5897672015-08-12 21:16:41 -04001399 public static boolean doThrow = false;
1400
1401 public static int $noinline$return_int_zero() {
1402 if (doThrow) {
1403 throw new Error();
1404 }
1405 return 0;
1406 }
1407
Andra Danciudc787f42020-07-07 14:28:56 +00001408 public static void test_Integer_divideUnsigned() {
1409 Assert.assertEquals(Integer.divideUnsigned(100, 10), 10);
1410 Assert.assertEquals(Integer.divideUnsigned(100, 1), 100);
1411 Assert.assertEquals(Integer.divideUnsigned(1024, 128), 8);
1412 Assert.assertEquals(Integer.divideUnsigned(12345678, 264), 46763);
1413 Assert.assertEquals(Integer.divideUnsigned(13, 5), 2);
1414 Assert.assertEquals(Integer.divideUnsigned(-2, 2), Integer.MAX_VALUE);
1415 Assert.assertEquals(Integer.divideUnsigned(-1, 2), Integer.MAX_VALUE);
1416 Assert.assertEquals(Integer.divideUnsigned(100000, -1), 0);
1417 Assert.assertEquals(Integer.divideUnsigned(Integer.MAX_VALUE, -1), 0);
1418 Assert.assertEquals(Integer.divideUnsigned(-2, -1), 0);
Vladimir Marko8942b3a2020-07-20 10:42:15 +01001419 Assert.assertEquals(Integer.divideUnsigned(-1, -2), 1);
Andra Danciudc787f42020-07-07 14:28:56 +00001420 Assert.assertEquals(Integer.divideUnsigned(-173448, 13), 330368757);
1421 Assert.assertEquals(Integer.divideUnsigned(Integer.MIN_VALUE, 2), (1 << 30));
1422 Assert.assertEquals(Integer.divideUnsigned(-1, Integer.MIN_VALUE), 1);
1423 Assert.assertEquals(Integer.divideUnsigned(Integer.MAX_VALUE, Integer.MIN_VALUE), 0);
1424 Assert.assertEquals(Integer.divideUnsigned(Integer.MIN_VALUE, Integer.MAX_VALUE), 1);
1425
1426 try {
1427 Integer.divideUnsigned(1, 0);
Vladimir Markobe7fe3b2020-07-09 10:58:12 +01001428 Assert.fail("Unreachable");
1429 } catch (ArithmeticException expected) {
Andra Danciudc787f42020-07-07 14:28:56 +00001430 }
Andra Danciudc787f42020-07-07 14:28:56 +00001431 }
1432
Artem Serova3bd4ec2020-08-27 16:26:17 +01001433
1434 private static final long BIG_LONG_VALUE = 739287620162442240L;
1435
1436 public static void test_Long_divideUnsigned() {
1437 Assert.assertEquals(Long.divideUnsigned(100L, 10L), 10L);
1438 Assert.assertEquals(Long.divideUnsigned(100L, 1L), 100L);
1439 Assert.assertEquals(Long.divideUnsigned(1024L, 128L), 8L);
1440 Assert.assertEquals(Long.divideUnsigned(12345678L, 264L), 46763L);
1441 Assert.assertEquals(Long.divideUnsigned(13L, 5L), 2L);
1442 Assert.assertEquals(Long.divideUnsigned(-2L, 2L), Long.MAX_VALUE);
1443 Assert.assertEquals(Long.divideUnsigned(-1L, 2L), Long.MAX_VALUE);
1444 Assert.assertEquals(Long.divideUnsigned(100000L, -1L), 0L);
1445 Assert.assertEquals(Long.divideUnsigned(Long.MAX_VALUE, -1L), 0L);
1446 Assert.assertEquals(Long.divideUnsigned(-2L, -1L), 0L);
1447 Assert.assertEquals(Long.divideUnsigned(-1L, -2L), 1L);
1448 Assert.assertEquals(Long.divideUnsigned(-173448L, 13L), 1418980313362259859L);
1449 Assert.assertEquals(Long.divideUnsigned(Long.MIN_VALUE, 2L), (1L << 62));
1450 Assert.assertEquals(Long.divideUnsigned(-1L, Long.MIN_VALUE), 1L);
1451 Assert.assertEquals(Long.divideUnsigned(Long.MAX_VALUE, Long.MIN_VALUE), 0L);
1452 Assert.assertEquals(Long.divideUnsigned(Long.MIN_VALUE, Long.MAX_VALUE), 1L);
1453 Assert.assertEquals(Long.divideUnsigned(Long.MAX_VALUE, 1L), Long.MAX_VALUE);
1454 Assert.assertEquals(Long.divideUnsigned(Long.MIN_VALUE, 1L), Long.MIN_VALUE);
1455 Assert.assertEquals(Long.divideUnsigned(BIG_LONG_VALUE, BIG_LONG_VALUE), 1L);
1456 Assert.assertEquals(Long.divideUnsigned(BIG_LONG_VALUE, 1L), BIG_LONG_VALUE);
1457 Assert.assertEquals(Long.divideUnsigned(BIG_LONG_VALUE, 1024L), 721960566564885L);
1458 Assert.assertEquals(Long.divideUnsigned(BIG_LONG_VALUE, 0x1FFFFFFFFL), 86064406L);
1459
1460 try {
1461 Long.divideUnsigned(1L, 0L);
1462 Assert.fail("Unreachable");
1463 } catch (ArithmeticException expected) {
1464 }
1465 }
1466
Scott Wakeling611d3392015-07-10 11:42:06 +01001467 public static void test_Integer_numberOfLeadingZeros() {
1468 Assert.assertEquals(Integer.numberOfLeadingZeros(0), Integer.SIZE);
Mark Mendelld5897672015-08-12 21:16:41 -04001469 Assert.assertEquals(Integer.numberOfLeadingZeros(1), Integer.SIZE - 1);
1470 Assert.assertEquals(Integer.numberOfLeadingZeros(1 << (Integer.SIZE-1)), 0);
1471 Assert.assertEquals(Integer.numberOfLeadingZeros($noinline$return_int_zero()), Integer.SIZE);
Scott Wakeling611d3392015-07-10 11:42:06 +01001472 for (int i = 0; i < Integer.SIZE; i++) {
1473 Assert.assertEquals(Integer.numberOfLeadingZeros(1 << i), Integer.SIZE - 1 - i);
1474 Assert.assertEquals(Integer.numberOfLeadingZeros((1 << i) | 1), Integer.SIZE - 1 - i);
1475 Assert.assertEquals(Integer.numberOfLeadingZeros(0xFFFFFFFF >>> i), i);
1476 }
1477 }
1478
Mark Mendelld5897672015-08-12 21:16:41 -04001479 public static long $noinline$return_long_zero() {
1480 if (doThrow) {
1481 throw new Error();
1482 }
1483 return 0;
1484 }
1485
Scott Wakeling611d3392015-07-10 11:42:06 +01001486 public static void test_Long_numberOfLeadingZeros() {
1487 Assert.assertEquals(Long.numberOfLeadingZeros(0L), Long.SIZE);
Mark Mendelld5897672015-08-12 21:16:41 -04001488 Assert.assertEquals(Long.numberOfLeadingZeros(1L), Long.SIZE - 1);
1489 Assert.assertEquals(Long.numberOfLeadingZeros(1L << ((Long.SIZE/2)-1)), Long.SIZE/2);
1490 Assert.assertEquals(Long.numberOfLeadingZeros(1L << (Long.SIZE-1)), 0);
1491 Assert.assertEquals(Long.numberOfLeadingZeros($noinline$return_long_zero()), Long.SIZE);
Scott Wakeling611d3392015-07-10 11:42:06 +01001492 for (int i = 0; i < Long.SIZE; i++) {
1493 Assert.assertEquals(Long.numberOfLeadingZeros(1L << i), Long.SIZE - 1 - i);
1494 Assert.assertEquals(Long.numberOfLeadingZeros((1L << i) | 1L), Long.SIZE - 1 - i);
1495 Assert.assertEquals(Long.numberOfLeadingZeros(0xFFFFFFFFFFFFFFFFL >>> i), i);
1496 }
1497 }
1498
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001499 static Object runtime;
1500 static Method address_of;
Zuo Wangf37a88b2014-07-10 04:26:41 -07001501 static Method new_non_movable_array;
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001502 static Method peek_byte;
1503 static Method peek_short;
1504 static Method peek_int;
1505 static Method peek_long;
1506 static Method poke_byte;
1507 static Method poke_short;
1508 static Method poke_int;
1509 static Method poke_long;
1510
1511 public static void initSupportMethodsForPeekPoke() throws Exception {
1512 Class<?> vm_runtime = Class.forName("dalvik.system.VMRuntime");
1513 Method get_runtime = vm_runtime.getDeclaredMethod("getRuntime");
1514 runtime = get_runtime.invoke(null);
1515 address_of = vm_runtime.getDeclaredMethod("addressOf", Object.class);
Zuo Wangf37a88b2014-07-10 04:26:41 -07001516 new_non_movable_array = vm_runtime.getDeclaredMethod("newNonMovableArray", Class.class, Integer.TYPE);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001517
1518 Class<?> io_memory = Class.forName("libcore.io.Memory");
1519 peek_byte = io_memory.getDeclaredMethod("peekByte", Long.TYPE);
1520 peek_int = io_memory.getDeclaredMethod("peekInt", Long.TYPE, Boolean.TYPE);
1521 peek_short = io_memory.getDeclaredMethod("peekShort", Long.TYPE, Boolean.TYPE);
1522 peek_long = io_memory.getDeclaredMethod("peekLong", Long.TYPE, Boolean.TYPE);
1523 poke_byte = io_memory.getDeclaredMethod("pokeByte", Long.TYPE, Byte.TYPE);
1524 poke_short = io_memory.getDeclaredMethod("pokeShort", Long.TYPE, Short.TYPE, Boolean.TYPE);
1525 poke_int = io_memory.getDeclaredMethod("pokeInt", Long.TYPE, Integer.TYPE, Boolean.TYPE);
1526 poke_long = io_memory.getDeclaredMethod("pokeLong", Long.TYPE, Long.TYPE, Boolean.TYPE);
1527 }
1528
1529 public static void test_Memory_peekByte() throws Exception {
Zuo Wangf37a88b2014-07-10 04:26:41 -07001530 byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 2);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001531 b[0] = 0x12;
1532 b[1] = 0x11;
1533 long address = (long)address_of.invoke(runtime, b);
1534 Assert.assertEquals((byte)peek_byte.invoke(null, address), 0x12);
1535 Assert.assertEquals((byte)peek_byte.invoke(null, address + 1), 0x11);
1536 }
1537
1538 public static void test_Memory_peekShort() throws Exception {
Zuo Wangf37a88b2014-07-10 04:26:41 -07001539 byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 3);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001540 b[0] = 0x13;
1541 b[1] = 0x12;
1542 b[2] = 0x11;
1543 long address = (long)address_of.invoke(runtime, b);
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001544 peek_short.invoke(null, address, false);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001545 Assert.assertEquals((short)peek_short.invoke(null, address, false), 0x1213); // Aligned read
1546 Assert.assertEquals((short)peek_short.invoke(null, address + 1, false), 0x1112); // Unaligned read
1547 }
1548
1549 public static void test_Memory_peekInt() throws Exception {
Zuo Wangf37a88b2014-07-10 04:26:41 -07001550 byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 5);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001551 b[0] = 0x15;
1552 b[1] = 0x14;
1553 b[2] = 0x13;
1554 b[3] = 0x12;
1555 b[4] = 0x11;
1556 long address = (long)address_of.invoke(runtime, b);
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001557 peek_int.invoke(null, address, false);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001558 Assert.assertEquals((int)peek_int.invoke(null, address, false), 0x12131415);
1559 Assert.assertEquals((int)peek_int.invoke(null, address + 1, false), 0x11121314);
1560 }
1561
1562 public static void test_Memory_peekLong() throws Exception {
Zuo Wangf37a88b2014-07-10 04:26:41 -07001563 byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 9);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001564 b[0] = 0x19;
1565 b[1] = 0x18;
1566 b[2] = 0x17;
1567 b[3] = 0x16;
1568 b[4] = 0x15;
1569 b[5] = 0x14;
1570 b[6] = 0x13;
1571 b[7] = 0x12;
1572 b[8] = 0x11;
1573 long address = (long)address_of.invoke(runtime, b);
Chao-ying Fuff87d7b2015-01-19 15:51:57 -08001574 peek_long.invoke(null, address, false);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001575 Assert.assertEquals((long)peek_long.invoke(null, address, false), 0x1213141516171819L);
1576 Assert.assertEquals((long)peek_long.invoke(null, address + 1, false), 0x1112131415161718L);
1577 }
1578
1579 public static void test_Memory_pokeByte() throws Exception {
1580 byte[] r = {0x11, 0x12};
Zuo Wangf37a88b2014-07-10 04:26:41 -07001581 byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 2);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001582 long address = (long)address_of.invoke(runtime, b);
1583 poke_byte.invoke(null, address, (byte)0x11);
1584 poke_byte.invoke(null, address + 1, (byte)0x12);
1585 Assert.assertTrue(Arrays.equals(r, b));
1586 }
1587
1588 public static void test_Memory_pokeShort() throws Exception {
1589 byte[] ra = {0x12, 0x11, 0x13};
1590 byte[] ru = {0x12, 0x22, 0x21};
Zuo Wangf37a88b2014-07-10 04:26:41 -07001591 byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 3);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001592 long address = (long)address_of.invoke(runtime, b);
1593
1594 // Aligned write
1595 b[2] = 0x13;
1596 poke_short.invoke(null, address, (short)0x1112, false);
1597 Assert.assertTrue(Arrays.equals(ra, b));
1598
1599 // Unaligned write
1600 poke_short.invoke(null, address + 1, (short)0x2122, false);
1601 Assert.assertTrue(Arrays.equals(ru, b));
1602 }
1603
1604 public static void test_Memory_pokeInt() throws Exception {
1605 byte[] ra = {0x14, 0x13, 0x12, 0x11, 0x15};
1606 byte[] ru = {0x14, 0x24, 0x23, 0x22, 0x21};
Zuo Wangf37a88b2014-07-10 04:26:41 -07001607 byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 5);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001608 long address = (long)address_of.invoke(runtime, b);
1609
1610 b[4] = 0x15;
1611 poke_int.invoke(null, address, (int)0x11121314, false);
1612 Assert.assertTrue(Arrays.equals(ra, b));
1613
1614 poke_int.invoke(null, address + 1, (int)0x21222324, false);
1615 Assert.assertTrue(Arrays.equals(ru, b));
1616 }
1617
1618 public static void test_Memory_pokeLong() throws Exception {
1619 byte[] ra = {0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x19};
1620 byte[] ru = {0x18, 0x28, 0x27, 0x26, 0x25, 0x24, 0x23, 0x22, 0x21};
Zuo Wangf37a88b2014-07-10 04:26:41 -07001621 byte[] b = (byte[])new_non_movable_array.invoke(runtime, Byte.TYPE, 9);
Alexei Zavjaloveb24bae2014-07-08 16:27:17 +07001622 long address = (long)address_of.invoke(runtime, b);
1623
1624 b[8] = 0x19;
1625 poke_long.invoke(null, address, (long)0x1112131415161718L, false);
1626 Assert.assertTrue(Arrays.equals(ra, b));
1627
1628 poke_long.invoke(null, address + 1, (long)0x2122232425262728L, false);
1629 Assert.assertTrue(Arrays.equals(ru, b));
1630 }
Scott Wakeling9ee23f42015-07-23 10:44:35 +01001631
1632 public static void test_Integer_numberOfTrailingZeros() {
1633 Assert.assertEquals(Integer.numberOfTrailingZeros(0), Integer.SIZE);
1634 for (int i = 0; i < Integer.SIZE; i++) {
1635 Assert.assertEquals(
1636 Integer.numberOfTrailingZeros(0x80000000 >> i),
1637 Integer.SIZE - 1 - i);
1638 Assert.assertEquals(
1639 Integer.numberOfTrailingZeros((0x80000000 >> i) | 0x80000000),
1640 Integer.SIZE - 1 - i);
1641 Assert.assertEquals(Integer.numberOfTrailingZeros(1 << i), i);
1642 }
1643 }
1644
1645 public static void test_Long_numberOfTrailingZeros() {
1646 Assert.assertEquals(Long.numberOfTrailingZeros(0), Long.SIZE);
1647 for (int i = 0; i < Long.SIZE; i++) {
1648 Assert.assertEquals(
1649 Long.numberOfTrailingZeros(0x8000000000000000L >> i),
1650 Long.SIZE - 1 - i);
1651 Assert.assertEquals(
1652 Long.numberOfTrailingZeros((0x8000000000000000L >> i) | 0x8000000000000000L),
1653 Long.SIZE - 1 - i);
1654 Assert.assertEquals(Long.numberOfTrailingZeros(1L << i), i);
1655 }
1656 }
1657
1658 public static void test_Integer_rotateRight() throws Exception {
1659 Assert.assertEquals(Integer.rotateRight(0x11, 0), 0x11);
1660
1661 Assert.assertEquals(Integer.rotateRight(0x11, 1), 0x80000008);
1662 Assert.assertEquals(Integer.rotateRight(0x11, Integer.SIZE - 1), 0x22);
1663 Assert.assertEquals(Integer.rotateRight(0x11, Integer.SIZE), 0x11);
1664 Assert.assertEquals(Integer.rotateRight(0x11, Integer.SIZE + 1), 0x80000008);
1665
1666 Assert.assertEquals(Integer.rotateRight(0x11, -1), 0x22);
1667 Assert.assertEquals(Integer.rotateRight(0x11, -(Integer.SIZE - 1)), 0x80000008);
1668 Assert.assertEquals(Integer.rotateRight(0x11, -Integer.SIZE), 0x11);
1669 Assert.assertEquals(Integer.rotateRight(0x11, -(Integer.SIZE + 1)), 0x22);
1670
1671 Assert.assertEquals(Integer.rotateRight(0x80000000, 1), 0x40000000);
1672
1673 for (int i = 0; i < Integer.SIZE; i++) {
1674 Assert.assertEquals(
1675 Integer.rotateRight(0xBBAAAADD, i),
1676 (0xBBAAAADD >>> i) | (0xBBAAAADD << (Integer.SIZE - i)));
1677 }
1678 }
1679
1680 public static void test_Long_rotateRight() throws Exception {
1681 Assert.assertEquals(Long.rotateRight(0x11, 0), 0x11);
1682
1683 Assert.assertEquals(Long.rotateRight(0x11, 1), 0x8000000000000008L);
1684 Assert.assertEquals(Long.rotateRight(0x11, Long.SIZE - 1), 0x22);
1685 Assert.assertEquals(Long.rotateRight(0x11, Long.SIZE), 0x11);
1686 Assert.assertEquals(Long.rotateRight(0x11, Long.SIZE + 1), 0x8000000000000008L);
1687
1688 Assert.assertEquals(Long.rotateRight(0x11, -1), 0x22);
1689 Assert.assertEquals(Long.rotateRight(0x11, -(Long.SIZE - 1)), 0x8000000000000008L);
1690 Assert.assertEquals(Long.rotateRight(0x11, -Long.SIZE), 0x11);
1691 Assert.assertEquals(Long.rotateRight(0x11, -(Long.SIZE + 1)), 0x22);
1692
1693 Assert.assertEquals(Long.rotateRight(0x8000000000000000L, 1), 0x4000000000000000L);
1694
1695 for (int i = 0; i < Long.SIZE; i++) {
1696 Assert.assertEquals(
1697 Long.rotateRight(0xBBAAAADDFF0000DDL, i),
1698 (0xBBAAAADDFF0000DDL >>> i) | (0xBBAAAADDFF0000DDL << (Long.SIZE - i)));
1699 }
1700 }
1701
1702 public static void test_Integer_rotateLeft() throws Exception {
1703 Assert.assertEquals(Integer.rotateLeft(0x11, 0), 0x11);
1704
1705 Assert.assertEquals(Integer.rotateLeft(0x11, 1), 0x22);
1706 Assert.assertEquals(Integer.rotateLeft(0x11, Integer.SIZE - 1), 0x80000008);
1707 Assert.assertEquals(Integer.rotateLeft(0x11, Integer.SIZE), 0x11);
1708 Assert.assertEquals(Integer.rotateLeft(0x11, Integer.SIZE + 1), 0x22);
1709
1710 Assert.assertEquals(Integer.rotateLeft(0x11, -1), 0x80000008);
1711 Assert.assertEquals(Integer.rotateLeft(0x11, -(Integer.SIZE - 1)), 0x22);
1712 Assert.assertEquals(Integer.rotateLeft(0x11, -Integer.SIZE), 0x11);
1713 Assert.assertEquals(Integer.rotateLeft(0x11, -(Integer.SIZE + 1)), 0x80000008);
1714
1715 Assert.assertEquals(Integer.rotateLeft(0xC0000000, 1), 0x80000001);
1716
1717 for (int i = 0; i < Integer.SIZE; i++) {
1718 Assert.assertEquals(
1719 Integer.rotateLeft(0xBBAAAADD, i),
1720 (0xBBAAAADD << i) | (0xBBAAAADD >>> (Integer.SIZE - i)));
1721 }
1722 }
1723
1724 public static void test_Long_rotateLeft() throws Exception {
1725 Assert.assertEquals(Long.rotateLeft(0x11, 0), 0x11);
1726
1727 Assert.assertEquals(Long.rotateLeft(0x11, 1), 0x22);
1728 Assert.assertEquals(Long.rotateLeft(0x11, Long.SIZE - 1), 0x8000000000000008L);
1729 Assert.assertEquals(Long.rotateLeft(0x11, Long.SIZE), 0x11);
1730 Assert.assertEquals(Long.rotateLeft(0x11, Long.SIZE + 1), 0x22);
1731
1732 Assert.assertEquals(Long.rotateLeft(0x11, -1), 0x8000000000000008L);
1733 Assert.assertEquals(Long.rotateLeft(0x11, -(Long.SIZE - 1)), 0x22);
1734 Assert.assertEquals(Long.rotateLeft(0x11, -Long.SIZE), 0x11);
1735 Assert.assertEquals(Long.rotateLeft(0x11, -(Long.SIZE + 1)), 0x8000000000000008L);
1736
1737 Assert.assertEquals(Long.rotateLeft(0xC000000000000000L, 1), 0x8000000000000001L);
1738
1739 for (int i = 0; i < Long.SIZE; i++) {
1740 Assert.assertEquals(
1741 Long.rotateLeft(0xBBAAAADDFF0000DDL, i),
1742 (0xBBAAAADDFF0000DDL << i) | (0xBBAAAADDFF0000DDL >>> (Long.SIZE - i)));
1743 }
1744 }
1745
1746 public static void test_Integer_rotateRightLeft() throws Exception {
1747 for (int i = 0; i < Integer.SIZE * 2; i++) {
1748 Assert.assertEquals(Integer.rotateLeft(0xBBAAAADD, i),
1749 Integer.rotateRight(0xBBAAAADD, -i));
1750 Assert.assertEquals(Integer.rotateLeft(0xBBAAAADD, -i),
1751 Integer.rotateRight(0xBBAAAADD, i));
1752 }
1753 }
1754
1755 public static void test_Long_rotateRightLeft() throws Exception {
1756 for (int i = 0; i < Long.SIZE * 2; i++) {
1757 Assert.assertEquals(Long.rotateLeft(0xBBAAAADDFF0000DDL, i),
1758 Long.rotateRight(0xBBAAAADDFF0000DDL, -i));
1759 Assert.assertEquals(Long.rotateLeft(0xBBAAAADDFF0000DDL, -i),
1760 Long.rotateRight(0xBBAAAADDFF0000DDL, i));
1761 }
1762 }
jeffhao5d1ac922011-09-29 17:41:15 -07001763}