patch 8.0.0300: cannot stop diffing hidden buffers
Problem: Cannot stop diffing hidden buffers. (Daniel Hahler)
Solution: When using :diffoff! make the whole list if diffed buffers empty.
(closes #736)
diff --git a/src/testdir/test_diffmode.vim b/src/testdir/test_diffmode.vim
index f40e06f..8ee82bd 100644
--- a/src/testdir/test_diffmode.vim
+++ b/src/testdir/test_diffmode.vim
@@ -212,6 +212,7 @@
call setline(1, ['One', '', 'Two', 'Three'])
diffthis
redraw
+ call assert_notequal(normattr, screenattr(1, 1))
diffoff!
redraw
call assert_equal(normattr, screenattr(1, 1))
@@ -219,6 +220,42 @@
bwipe!
endfunc
+func Test_diffoff_hidden()
+ set diffopt=filler,foldcolumn:0
+ e! one
+ call setline(1, ['Two', 'Three'])
+ let normattr = screenattr(1, 1)
+ diffthis
+ botright vert new two
+ call setline(1, ['One', 'Four'])
+ diffthis
+ redraw
+ call assert_notequal(normattr, screenattr(1, 1))
+ set hidden
+ close
+ redraw
+ " diffing with hidden buffer two
+ call assert_notequal(normattr, screenattr(1, 1))
+ diffoff
+ redraw
+ call assert_equal(normattr, screenattr(1, 1))
+ diffthis
+ redraw
+ " still diffing with hidden buffer two
+ call assert_notequal(normattr, screenattr(1, 1))
+ diffoff!
+ redraw
+ call assert_equal(normattr, screenattr(1, 1))
+ diffthis
+ redraw
+ " no longer diffing with hidden buffer two
+ call assert_equal(normattr, screenattr(1, 1))
+
+ bwipe!
+ bwipe!
+ set hidden& diffopt&
+endfunc
+
func Test_setting_cursor()
new Xtest1
put =range(1,90)