patch 8.2.2880: unified diff fails if actually used
Problem: Unified diff fails if actually used.
Solution: Invoke :diffupdate in the test. Fix the check for working external
diff. (Ghjuvan Lacambre, Christian Brabandt, closes #8197)
diff --git a/src/testdir/test_diffmode.vim b/src/testdir/test_diffmode.vim
index 4696456..96a8d2c 100644
--- a/src/testdir/test_diffmode.vim
+++ b/src/testdir/test_diffmode.vim
@@ -796,6 +796,7 @@
" also test unified diff
call term_sendkeys(a:buf, ":call SetupUnified()\<CR>:")
+ call term_sendkeys(a:buf, ":redraw!\<CR>:")
call VerifyScreenDump(a:buf, a:dumpfile, {}, 'unified')
call term_sendkeys(a:buf, ":call StopUnified()\<CR>:")
endfunc
@@ -817,10 +818,11 @@
func UnifiedDiffExpr()
" Prepend some text to check diff type detection
call writefile(['warning', ' message'], v:fname_out)
- silent exe '!diff -u ' .. v:fname_in .. ' ' .. v:fname_new .. '>>' .. v:fname_out
+ silent exe '!diff -U0 ' .. v:fname_in .. ' ' .. v:fname_new .. '>>' .. v:fname_out
endfunc
func SetupUnified()
set diffexpr=UnifiedDiffExpr()
+ diffupdate
endfunc
func StopUnified()
set diffexpr=
@@ -1218,4 +1220,5 @@
call delete('Xtest_diff_cuc')
endfunc
+
" vim: shiftwidth=2 sts=2 expandtab