test: add some tests for :*map <expr>

Add tests for:
 - Cursor position restored after :map expr
 - Cursor position restored after :imap expr
 - Error in :cmap expr handled correctly

Cherry-picked from #12837
This commit is contained in:
Jay Sandhu 2020-09-02 17:51:59 +01:00 committed by zeertzjq
parent 2ffe66a5a4
commit 80a3018a09
2 changed files with 109 additions and 6 deletions

View File

@ -1,4 +1,5 @@
local helpers = require("test.functional.helpers")(after_each)
local Screen = require('test.functional.ui.screen')
local eq = helpers.eq
local feed = helpers.feed
@ -26,3 +27,104 @@ describe(':*map', function()
expect('-foo-')
end)
end)
describe(':*map <expr>', function()
local screen
before_each(function()
clear()
screen = Screen.new(20, 5)
screen:attach()
end)
it('cursor is restored after :map <expr>', function()
command(':map <expr> x input("> ")')
screen:expect([[
^ |
~ |
~ |
~ |
|
]])
feed('x')
screen:expect([[
|
~ |
~ |
~ |
> ^ |
]])
feed('\n')
screen:expect([[
^ |
~ |
~ |
~ |
> |
]])
end)
it('cursor is restored after :imap <expr>', function()
command(':imap <expr> x input("> ")')
feed('i')
screen:expect([[
^ |
~ |
~ |
~ |
-- INSERT -- |
]])
feed('x')
screen:expect([[
|
~ |
~ |
~ |
> ^ |
]])
feed('\n')
screen:expect([[
^ |
~ |
~ |
~ |
> |
]])
end)
it('error in :cmap <expr> handled correctly', function()
screen:try_resize(40, 5)
command(':cmap <expr> x execute("throw 42")')
feed(':echo "foo')
screen:expect([[
|
~ |
~ |
~ |
:echo "foo^ |
]])
feed('x')
screen:expect([[
|
:echo "foo |
Error detected while processing : |
E605: Exception not caught: 42 |
:echo "foo^ |
]])
feed('"')
screen:expect([[
|
:echo "foo |
Error detected while processing : |
E605: Exception not caught: 42 |
:echo "foo"^ |
]])
feed('\n')
screen:expect([[
:echo "foo |
Error detected while processing : |
E605: Exception not caught: 42 |
foo |
Press ENTER or type command to continue^ |
]])
end)
end)

View File

@ -33,7 +33,7 @@ before_each(function()
let g:NUM_LVLS = 4
function Redraw()
mode
return ''
return "\<Ignore>"
endfunction
let g:id = ''
cnoremap <expr> {REDRAW} Redraw()
@ -42,7 +42,7 @@ before_each(function()
let Cb = g:Nvim_color_input{g:id}
let out = input({'prompt': ':', 'highlight': Cb})
let g:out{id} = out
return (a:do_return ? out : '')
return (a:do_return ? out : "\<Ignore>")
endfunction
nnoremap <expr> {PROMPT} DoPrompt(0)
cnoremap <expr> {PROMPT} DoPrompt(1)
@ -410,7 +410,7 @@ describe('Command-line coloring', function()
end)
it('stops executing callback after a number of errors', function()
set_color_cb('SplittedMultibyteStart')
start_prompt('let x = "«»«»«»«»«»"\n')
start_prompt('let x = "«»«»«»«»«»"')
screen:expect([[
{EOB:~ }|
{EOB:~ }|
@ -419,7 +419,7 @@ describe('Command-line coloring', function()
:let x = " |
{ERR:E5405: Chunk 0 start 10 splits multibyte}|
{ERR: character} |
^:let x = "«»«»«»«»«»" |
:let x = "«»«»«»«»«»"^ |
]])
feed('\n')
screen:expect([[
@ -432,6 +432,7 @@ describe('Command-line coloring', function()
{EOB:~ }|
|
]])
feed('\n')
eq('let x = "«»«»«»«»«»"', meths.get_var('out'))
local msg = '\nE5405: Chunk 0 start 10 splits multibyte character'
eq(msg:rep(1), funcs.execute('messages'))
@ -474,14 +475,14 @@ describe('Command-line coloring', function()
]])
feed('\n')
screen:expect([[
|
^ |
{EOB:~ }|
{EOB:~ }|
{EOB:~ }|
{EOB:~ }|
{EOB:~ }|
{EOB:~ }|
^:echo 42 |
:echo 42 |
]])
feed('\n')
eq('echo 42', meths.get_var('out'))