patch 8.2.3204: display garbled when 'cursorline' is set and lines wrap
Problem: Display garbled when 'cursorline' is set and lines wrap. (Gabriel
Dupras)
Solution: Avoid inserting lines twice.
diff --git a/src/testdir/test_cursorline.vim b/src/testdir/test_cursorline.vim
index 24c288c..61cd983 100644
--- a/src/testdir/test_cursorline.vim
+++ b/src/testdir/test_cursorline.vim
@@ -110,6 +110,7 @@
func Test_cursorline_screenline()
CheckScreendump
CheckOption cursorlineopt
+
let filename='Xcursorline'
let lines = []
@@ -197,4 +198,52 @@
call delete(filename)
endfunc
+func Test_cursorline_redraw()
+ CheckScreendump
+ CheckOption cursorlineopt
+
+ let textlines =<< END
+ When the option is a list of flags, {value} must be
+ exactly as they appear in the option. Remove flags
+ one by one to avoid problems.
+ Also see |:set-args| above.
+
+The {option} arguments to ":set" may be repeated. For example: >
+ :set ai nosi sw=3 ts=3
+If you make an error in one of the arguments, an error message will be given
+and the following arguments will be ignored.
+
+ *:set-verbose*
+When 'verbose' is non-zero, displaying an option value will also tell where it
+was last set. Example: >
+ :verbose set shiftwidth cindent?
+< shiftwidth=4 ~
+ Last set from modeline line 1 ~
+ cindent ~
+ Last set from /usr/local/share/vim/vim60/ftplugin/c.vim line 30 ~
+This is only done when specific option values are requested, not for ":verbose
+set all" or ":verbose set" without an argument.
+When the option was set by hand there is no "Last set" message.
+When the option was set while executing a function, user command or
+END
+ call writefile(textlines, 'Xtextfile')
+
+ let script =<< trim END
+ set cursorline scrolloff=2
+ normal 12G
+ END
+ call writefile(script, 'Xscript')
+
+ let buf = RunVimInTerminal('-S Xscript Xtextfile', #{rows: 20, cols: 40})
+ call VerifyScreenDump(buf, 'Test_cursorline_redraw_1', {})
+ call term_sendkeys(buf, "zt")
+ call TermWait(buf)
+ call term_sendkeys(buf, "\<C-U>")
+ call VerifyScreenDump(buf, 'Test_cursorline_redraw_2', {})
+
+ call StopVimInTerminal(buf)
+ call delete('Xscript')
+ call delete('Xtextfile')
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab