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-rw-r--r--src/testdir/test_backspace_opt.vim169
1 files changed, 169 insertions, 0 deletions
diff --git a/src/testdir/test_backspace_opt.vim b/src/testdir/test_backspace_opt.vim
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+" Tests for 'backspace' settings
+
+func Test_backspace_option()
+ set backspace=
+ call assert_equal('', &backspace)
+ set backspace=indent
+ call assert_equal('indent', &backspace)
+ set backspace=eol
+ call assert_equal('eol', &backspace)
+ set backspace=start
+ call assert_equal('start', &backspace)
+ set backspace=nostop
+ call assert_equal('nostop', &backspace)
+ " Add the value
+ set backspace=
+ set backspace=indent
+ call assert_equal('indent', &backspace)
+ set backspace+=eol
+ call assert_equal('indent,eol', &backspace)
+ set backspace+=start
+ call assert_equal('indent,eol,start', &backspace)
+ set backspace+=nostop
+ call assert_equal('indent,eol,start,nostop', &backspace)
+ " Delete the value
+ set backspace-=nostop
+ call assert_equal('indent,eol,start', &backspace)
+ set backspace-=indent
+ call assert_equal('eol,start', &backspace)
+ set backspace-=start
+ call assert_equal('eol', &backspace)
+ set backspace-=eol
+ call assert_equal('', &backspace)
+ " Check the error
+ call assert_fails('set backspace=ABC', 'E474:')
+ call assert_fails('set backspace+=def', 'E474:')
+ " NOTE: Vim doesn't check following error...
+ "call assert_fails('set backspace-=ghi', 'E474:')
+
+ " Check backwards compatibility with version 5.4 and earlier
+ set backspace=0
+ call assert_equal('0', &backspace)
+ set backspace=1
+ call assert_equal('1', &backspace)
+ set backspace=2
+ call assert_equal('2', &backspace)
+ set backspace=3
+ call assert_equal('3', &backspace)
+ call assert_fails('set backspace=4', 'E474:')
+ call assert_fails('set backspace=10', 'E474:')
+
+ " Cleared when 'compatible' is set
+ set compatible
+ call assert_equal('', &backspace)
+ set nocompatible viminfo+=nviminfo
+endfunc
+
+" Test with backspace set to the non-compatible setting
+func Test_backspace_ctrl_u()
+ new
+ call append(0, [
+ \ "1 this shouldn't be deleted",
+ \ "2 this shouldn't be deleted",
+ \ "3 this shouldn't be deleted",
+ \ "4 this should be deleted",
+ \ "5 this shouldn't be deleted",
+ \ "6 this shouldn't be deleted",
+ \ "7 this shouldn't be deleted",
+ \ "8 this shouldn't be deleted (not touched yet)"])
+ call cursor(2, 1)
+
+ set compatible
+ set backspace=2
+
+ exe "normal Avim1\<C-U>\<Esc>\<CR>"
+ exe "normal Avim2\<C-G>u\<C-U>\<Esc>\<CR>"
+
+ set cpo-=<
+ inoremap <c-u> <left><c-u>
+ exe "normal Avim3\<*C-U>\<Esc>\<CR>"
+ iunmap <c-u>
+ exe "normal Avim4\<C-U>\<C-U>\<Esc>\<CR>"
+
+ " Test with backspace set to the compatible setting
+ set backspace= visualbell
+ exe "normal A vim5\<Esc>A\<C-U>\<C-U>\<Esc>\<CR>"
+ exe "normal A vim6\<Esc>Azwei\<C-G>u\<C-U>\<Esc>\<CR>"
+
+ inoremap <c-u> <left><c-u>
+ exe "normal A vim7\<*C-U>\<*C-U>\<Esc>\<CR>"
+
+ call assert_equal([
+ \ "1 this shouldn't be deleted",
+ \ "2 this shouldn't be deleted",
+ \ "3 this shouldn't be deleted",
+ \ "4 this should be deleted3",
+ \ "",
+ \ "6 this shouldn't be deleted vim5",
+ \ "7 this shouldn't be deleted vim6",
+ \ "8 this shouldn't be deleted (not touched yet) vim7",
+ \ ""], getline(1, '$'))
+
+ " Reset values
+ set compatible&vim
+ set visualbell&vim
+ set backspace&vim
+
+ " Test new nostop option
+ %d_
+ let expected = "foo bar foobar"
+ call setline(1, expected)
+ call cursor(1, 8)
+ exe ":norm! ianotherone\<c-u>"
+ call assert_equal(expected, getline(1))
+ call cursor(1, 8)
+ exe ":norm! ianothertwo\<c-w>"
+ call assert_equal(expected, getline(1))
+
+ let content = getline(1)
+ for value in ['indent,nostop', 'eol,nostop', 'indent,eol,nostop', 'indent,eol,start,nostop']
+ exe ":set bs=".. value
+ %d _
+ call setline(1, content)
+ let expected = " foobar"
+ call cursor(1, 8)
+ exe ":norm! ianotherone\<c-u>"
+ call assert_equal(expected, getline(1), 'CTRL-U backspace value: '.. &bs)
+ let expected = "foo foobar"
+ call setline(1, content)
+ call cursor(1, 8)
+ exe ":norm! ianothertwo\<c-w>"
+ call assert_equal(expected, getline(1), 'CTRL-W backspace value: '.. &bs)
+ endfor
+
+ " Reset options
+ set compatible&vim
+ set visualbell&vim
+ set backspace&vim
+ close!
+endfunc
+
+" Test for setting 'backspace' to a number value (for backward compatibility)
+func Test_backspace_number_value()
+ new
+
+ set backspace=0
+ call setline(1, ['one two', 'three four'])
+ call cursor(2, 1)
+ exe "normal! A\<C-W>\<C-U>"
+ call assert_equal('three four', getline(2))
+
+ set backspace=1
+ exe "normal! A\<CR>five\<C-W>\<C-U>\<C-W>\<C-U>"
+ call assert_equal(['one two', 'three four'], getline(1, '$'))
+
+ set backspace=2
+ call cursor(2, 7)
+ exe "normal! ihalf\<C-U>"
+ call assert_equal('three four', getline(2))
+
+ set backspace=3
+ call cursor(2, 7)
+ exe "normal! ihalf\<C-U>"
+ call assert_equal('four', getline(2))
+
+ bw!
+ set backspace&
+endfunc
+
+" vim: shiftwidth=2 sts=2 expandtab