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6d8c8b18d5
Problem: The magic globals `it`, `describe`, etc., are more trouble than they are worth. - Hooking into `after_each` requires `getfenv()` hacks. - They confuse luals/emmylua, because the top-level `.luarc.json` isn't merged with `test/.luarc.json` (apparently a luals limitation?) - They totally defeat discoverability because the user just has to "know" about the various magic symbols. So they harm DX, which means they serve no purpose at all. Solution: - Expose the test API from `testutil`, so tests can call `t.it()`, `t.describe()`, etc., in the conventional way. - Drop `getfenv()` hacks. - Drop the `setfenv()` injection in `load_chunk`. - Drop `test/_meta.lua`.
69 lines
1.9 KiB
Lua
69 lines
1.9 KiB
Lua
-- To run this test:
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-- make functionaltest TEST_FILE=test/functional/example_spec.lua
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local t = require('test.testutil')
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local n = require('test.functional.testnvim')()
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local Screen = require('test.functional.ui.screen')
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local describe, it, before_each = t.describe, t.it, t.before_each
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local clear = n.clear
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local command = n.command
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local eq = t.eq
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local feed = n.feed
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describe('example', function()
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local screen
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before_each(function()
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clear()
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screen = Screen.new(20, 5)
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end)
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it('screen test', function()
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-- Do some stuff.
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feed('iline1<cr>line2<esc>')
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-- For debugging only: prints the current screen.
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-- screen:snapshot_util()
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-- Assert the expected state.
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screen:expect([[
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line1 |
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line^2 |
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{1:~ }|*2
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]])
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end)
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it('override UI event-handler', function()
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-- Example: override the "tabline_update" UI event handler.
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--
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-- screen.lua defines default handlers for UI events, but tests
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-- may sometimes want to override a handler.
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-- The UI must declare that it wants to handle the UI events.
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-- For this example, we enable `ext_tabline`:
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screen:detach()
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screen = Screen.new(25, 5, { rgb = true, ext_tabline = true })
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-- From ":help ui" we find that `tabline_update` receives `curtab` and
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-- `tabs` objects. So we declare the UI handler like this:
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local event_tabs, event_curtab
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function screen:_handle_tabline_update(curtab, tabs)
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event_curtab, event_tabs = curtab, tabs
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end
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-- Create a tabpage...
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command('tabedit foo')
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-- Use screen:expect{condition=…} to check the result.
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screen:expect {
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condition = function()
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eq(2, event_curtab)
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eq({
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{ tab = 1, name = '[No Name]' },
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{ tab = 2, name = 'foo' },
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}, event_tabs)
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end,
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}
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end)
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end)
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