Mercurial > vim
diff src/testdir/test_mapping.vim @ 27624:ec52847967d8 v8.2.4338
patch 8.2.4338: an error from an expression mapping messes up the display
Commit: https://github.com/vim/vim/commit/74a0a5b26d0180f3ea89e9495dff6a26f0df23cb
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Feb 10 14:07:41 2022 +0000
patch 8.2.4338: an error from an expression mapping messes up the display
Problem: An error from an expression mapping messes up the display.
Solution: When the expression results in an empty string return K_IGNORE.
In cmdline mode redraw the command line. (closes #9726)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Thu, 10 Feb 2022 15:15:04 +0100 |
| parents | 4c16acb2525f |
| children | fc0a37304590 |
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--- a/src/testdir/test_mapping.vim +++ b/src/testdir/test_mapping.vim @@ -549,6 +549,38 @@ func Test_expr_map_restore_cursor() call delete('XtestExprMap') endfunc +func Test_expr_map_error() + CheckScreendump + + let lines =<< trim END + func Func() + throw 'test' + return '' + endfunc + + nnoremap <expr> <F2> Func() + cnoremap <expr> <F2> Func() + + call test_override('ui_delay', 10) + END + call writefile(lines, 'XtestExprMap') + let buf = RunVimInTerminal('-S XtestExprMap', #{rows: 10}) + call TermWait(buf) + call term_sendkeys(buf, "\<F2>") + call TermWait(buf) + call term_sendkeys(buf, "\<CR>") + call VerifyScreenDump(buf, 'Test_map_expr_2', {}) + + call term_sendkeys(buf, ":abc\<F2>") + call VerifyScreenDump(buf, 'Test_map_expr_3', {}) + call term_sendkeys(buf, "\<Esc>0") + call VerifyScreenDump(buf, 'Test_map_expr_4', {}) + + " clean up + call StopVimInTerminal(buf) + call delete('XtestExprMap') +endfunc + " Test for mapping errors func Test_map_error() call assert_fails('unmap', 'E474:')