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	Before this, --embed UIs (without --headless) would not trigger UIEnter. For TUI, maybe UIEnter isn't useful, but: - It is less "surprising"/special. - Makes documentation simpler. - When TUI becomes a coprocess, it will happen anyway.
		
			
				
	
	
		
			59 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Lua
		
	
	
	
	
	
			
		
		
	
	
			59 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Lua
		
	
	
	
	
	
local helpers = require('test.functional.helpers')(after_each)
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local Screen = require('test.functional.ui.screen')
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local clear = helpers.clear
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local eq = helpers.eq
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local eval = helpers.eval
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local meths = helpers.meths
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local request = helpers.request
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local pcall_err = helpers.pcall_err
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describe('nvim_ui_attach()', function()
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  before_each(function()
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    clear()
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  end)
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  it('handles very large width/height #2180', function()
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    local screen = Screen.new(999, 999)
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    screen:attach()
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    eq(999, eval('&lines'))
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    eq(999, eval('&columns'))
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  end)
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  it('invalid option returns error', function()
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    eq('No such UI option: foo',
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      pcall_err(meths.ui_attach, 80, 24, { foo={'foo'} }))
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  end)
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  it('validates channel arg', function()
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    eq('UI not attached to channel: 1',
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      pcall_err(request, 'nvim_ui_try_resize', 40, 10))
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    eq('UI not attached to channel: 1',
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      pcall_err(request, 'nvim_ui_set_option', 'rgb', true))
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    eq('UI not attached to channel: 1',
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      pcall_err(request, 'nvim_ui_detach'))
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    local screen = Screen.new()
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    screen:attach({rgb=false})
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    eq('UI already attached to channel: 1',
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      pcall_err(request, 'nvim_ui_attach', 40, 10, { rgb=false }))
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  end)
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end)
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it('autocmds UIEnter/UILeave', function()
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  clear{
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    args_rm={'--headless'},
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    args={
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      '--cmd', 'let g:evs = []',
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      '--cmd', 'autocmd UIEnter * :call add(g:evs, "UIEnter") | let g:uienter_ev = deepcopy(v:event)',
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      '--cmd', 'autocmd UILeave * :call add(g:evs, "UILeave") | let g:uileave_ev = deepcopy(v:event)',
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      '--cmd', 'autocmd VimEnter * :call add(g:evs, "VimEnter")',
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    }}
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  local screen = Screen.new()
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  screen:attach()
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  eq({chan=1}, eval('g:uienter_ev'))
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  screen:detach()
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  eq({chan=1}, eval('g:uileave_ev'))
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  eq({
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    'VimEnter',
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    'UIEnter',
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    'UILeave',
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  }, eval('g:evs'))
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end)
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