patch 8.0.0735: no indication that the quickfix window/buffer changed
Problem: There is no way to notice that the quickfix window contents has
changed.
Solution: Increment b:changedtick when updating the quickfix window.
(Yegappan Lakshmanan)
diff --git a/src/testdir/test_quickfix.vim b/src/testdir/test_quickfix.vim
index b3cc689..7b344ea 100644
--- a/src/testdir/test_quickfix.vim
+++ b/src/testdir/test_quickfix.vim
@@ -2263,3 +2263,27 @@
augroup! QF_Test
endtry
endfunc
+
+" Tests for the quickfix buffer b:changedtick variable
+func Xchangedtick_tests(cchar)
+ call s:setup_commands(a:cchar)
+
+ new | only
+
+ Xexpr "" | Xexpr "" | Xexpr ""
+
+ Xopen
+ Xolder
+ Xolder
+ Xaddexpr "F1:10:Line10"
+ Xaddexpr "F2:20:Line20"
+ call g:Xsetlist([{"filename":"F3", "lnum":30, "text":"Line30"}], 'a')
+ call g:Xsetlist([], 'f')
+ call assert_equal(8, getbufvar('%', 'changedtick'))
+ Xclose
+endfunc
+
+func Test_changedtick()
+ call Xchangedtick_tests('c')
+ call Xchangedtick_tests('l')
+endfunc