patch 7.4.1961
Problem: When 'insertmode' is reset while doing completion the popup menu
remains even though Vim is in Normal mode.
Solution: Ignore stop_insert_mode when the popup menu is visible. Don't set
stop_insert_mode when 'insertmode' was already off. (Christian
Brabandt)
diff --git a/src/testdir/test_popup.vim b/src/testdir/test_popup.vim
new file mode 100644
index 0000000..a5673c9
--- /dev/null
+++ b/src/testdir/test_popup.vim
@@ -0,0 +1,35 @@
+" Test for completion menu
+
+inoremap <F5> <C-R>=ListMonths()<CR>
+let g:months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']
+let g:setting = ''
+
+func ListMonths()
+ if g:setting != ''
+ exe ":set" g:setting
+ endif
+ call complete(col('.'), g:months)
+ return ''
+endfunc
+
+func! Test_popup_completion_insertmode()
+ new
+ call feedkeys("a\<f5>\<down>\<enter>\<esc>", 'tx')
+ call assert_equal('February', getline(1))
+ %d
+ let g:setting = 'noinsertmode'
+ call feedkeys("a\<f5>\<down>\<enter>\<esc>", 'tx')
+ call assert_equal('February', getline(1))
+ call assert_false(pumvisible())
+ %d
+ let g:setting = ''
+ call feedkeys("a\<f5>". repeat("\<c-n>",12)."\<enter>\<esc>", 'tx')
+ call assert_equal('', getline(1))
+ %d
+ call feedkeys("a\<f5>\<c-p>\<enter>\<esc>", 'tx')
+ call assert_equal('', getline(1))
+ %d
+ call feedkeys("a\<f5>\<c-p>\<c-p>\<enter>\<esc>", 'tx')
+ call assert_equal('December', getline(1))
+ bwipe!
+endfunc