From 8740e0bd58c7311826e781591db5d29b4b3ffa73 Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Thu, 1 Sep 2022 09:12:20 +0800
Subject: vim-patch:9.0.0343: ColorScheme autocommand triggered when
 colorscheme not found (#20032)

Problem:    ColorScheme autocommand triggered when colorscheme is not found.
            (Romain Lafourcade)
Solution:   Only trigger ColorScheme when loading the colorscheme succeeds.
            (closes vim/vim#11024)
https://github.com/vim/vim/commit/5d09a401ec393dc930e1104ceb38eab34681de64

Most of Test_colorscheme() is applicable to Nvim.
---
 src/nvim/testdir/test_gui.vim | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 src/nvim/testdir/test_gui.vim

(limited to 'src/nvim/testdir')

diff --git a/src/nvim/testdir/test_gui.vim b/src/nvim/testdir/test_gui.vim
new file mode 100644
index 0000000000..c3f1f3163a
--- /dev/null
+++ b/src/nvim/testdir/test_gui.vim
@@ -0,0 +1,43 @@
+
+func Test_colorscheme()
+  " call assert_equal('16777216', &t_Co)
+
+  let colorscheme_saved = exists('g:colors_name') ? g:colors_name : 'default'
+  let g:color_count = 0
+  augroup TestColors
+    au!
+    au ColorScheme * let g:color_count += 1
+                 \ | let g:after_colors = g:color_count
+                 \ | let g:color_after = expand('<amatch>')
+    au ColorSchemePre * let g:color_count += 1
+                    \ | let g:before_colors = g:color_count
+                    \ | let g:color_pre = expand('<amatch>')
+  augroup END
+
+  colorscheme torte
+  redraw!
+  call assert_equal('dark', &background)
+  call assert_equal(1, g:before_colors)
+  call assert_equal(2, g:after_colors)
+  call assert_equal('torte', g:color_pre)
+  call assert_equal('torte', g:color_after)
+  call assert_equal("\ntorte", execute('colorscheme'))
+
+  let a = substitute(execute('hi Search'), "\n\\s\\+", ' ', 'g')
+  " FIXME: temporarily check less while the colorscheme changes
+  " call assert_match("\nSearch         xxx term=reverse cterm=reverse ctermfg=196 ctermbg=16 gui=reverse guifg=#ff0000 guibg=#000000", a)
+  " call assert_match("\nSearch         xxx term=reverse ", a)
+
+  call assert_fails('colorscheme does_not_exist', 'E185:')
+  call assert_equal('does_not_exist', g:color_pre)
+  call assert_equal('torte', g:color_after)
+
+  exec 'colorscheme' colorscheme_saved
+  augroup TestColors
+    au!
+  augroup END
+  unlet g:color_count g:after_colors g:before_colors
+  redraw!
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab
-- 
cgit