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https://github.com/neovim/neovim.git
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2afbce7651
Problem - `redir_exec` is obsolete, but it keeps getting used in new tests because people copy existing tests. - Disadvantages of `redir_exec`: - Captures extra junk before the actual error/message that we _want_ to test. - Does not fail on error, unlike e.g. `command()`. Solution - Use new functions like `nvim_exec` and `pcall_err`.
302 lines
14 KiB
Lua
302 lines
14 KiB
Lua
-- Test for Vim overrides of lua built-ins
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local helpers = require('test.functional.helpers')(after_each)
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local Screen = require('test.functional.ui.screen')
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local eq = helpers.eq
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local NIL = helpers.NIL
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local feed = helpers.feed
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local clear = helpers.clear
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local funcs = helpers.funcs
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local meths = helpers.meths
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local iswin = helpers.iswin
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local command = helpers.command
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local write_file = helpers.write_file
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local exec_capture = helpers.exec_capture
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local exec_lua = helpers.exec_lua
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local pcall_err = helpers.pcall_err
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local screen
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local fname = 'Xtest-functional-lua-overrides-luafile'
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before_each(clear)
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after_each(function()
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os.remove(fname)
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end)
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describe('print', function()
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it('returns nothing', function()
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eq(NIL, funcs.luaeval('print("abc")'))
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eq(0, funcs.luaeval('select("#", print("abc"))'))
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end)
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it('allows catching printed text with :execute', function()
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eq('\nabc', funcs.execute('lua print("abc")'))
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eq('\nabc', funcs.execute('luado print("abc")'))
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eq('\nabc', funcs.execute('call luaeval("print(\'abc\')")'))
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write_file(fname, 'print("abc")')
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eq('\nabc', funcs.execute('luafile ' .. fname))
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eq('abc', exec_capture('lua print("abc")'))
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eq('abc', exec_capture('luado print("abc")'))
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eq('abc', exec_capture('call luaeval("print(\'abc\')")'))
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write_file(fname, 'print("abc")')
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eq('abc', exec_capture('luafile ' .. fname))
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end)
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it('handles errors in __tostring', function()
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write_file(fname, [[
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local meta_nilerr = { __tostring = function() error(nil) end }
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local meta_abcerr = { __tostring = function() error("abc") end }
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local meta_tblout = { __tostring = function() return {"TEST"} end }
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v_nilerr = setmetatable({}, meta_nilerr)
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v_abcerr = setmetatable({}, meta_abcerr)
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v_tblout = setmetatable({}, meta_tblout)
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]])
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eq('', exec_capture('luafile ' .. fname))
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-- TODO(bfredl): these look weird, print() should not use "E5114:" style errors..
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eq('Vim(lua):E5108: Error executing lua E5114: Error while converting print argument #2: [NULL]',
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pcall_err(command, 'lua print("foo", v_nilerr, "bar")'))
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eq('Vim(lua):E5108: Error executing lua E5114: Error while converting print argument #2: Xtest-functional-lua-overrides-luafile:0: abc',
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pcall_err(command, 'lua print("foo", v_abcerr, "bar")'))
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eq('Vim(lua):E5108: Error executing lua E5114: Error while converting print argument #2: <Unknown error: lua_tolstring returned NULL for tostring result>',
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pcall_err(command, 'lua print("foo", v_tblout, "bar")'))
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end)
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it('prints strings with NULs and NLs correctly', function()
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meths.set_option('more', true)
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eq('abc ^@ def\nghi^@^@^@jkl\nTEST\n\n\nT\n',
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exec_capture([[lua print("abc \0 def\nghi\0\0\0jkl\nTEST\n\n\nT\n")]]))
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eq('abc ^@ def\nghi^@^@^@jkl\nTEST\n\n\nT^@',
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exec_capture([[lua print("abc \0 def\nghi\0\0\0jkl\nTEST\n\n\nT\0")]]))
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eq('T^@', exec_capture([[lua print("T\0")]]))
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eq('T\n', exec_capture([[lua print("T\n")]]))
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end)
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it('prints empty strings correctly', function()
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-- Regression: first test used to crash
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eq('', exec_capture('lua print("")'))
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eq(' def', exec_capture('lua print("", "def")'))
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eq('abc ', exec_capture('lua print("abc", "")'))
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eq('abc def', exec_capture('lua print("abc", "", "def")'))
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end)
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it('defers printing in luv event handlers', function()
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exec_lua([[
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local cmd = ...
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function test()
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local timer = vim.loop.new_timer()
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local done = false
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timer:start(10, 0, function()
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print("very fast")
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timer:close()
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done = true
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end)
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-- be kind to slow travis OS X jobs:
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-- loop until we know for sure the callback has been executed
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while not done do
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os.execute(cmd)
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vim.loop.run("nowait") -- fake os_breakcheck()
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end
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print("very slow")
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vim.api.nvim_command("sleep 1m") -- force deferred event processing
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end
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]], (iswin() and "timeout 1") or "sleep 0.1")
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eq('very slow\nvery fast', exec_capture('lua test()'))
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end)
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end)
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describe('debug.debug', function()
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before_each(function()
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screen = Screen.new()
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screen:attach()
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screen:set_default_attr_ids({
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[0] = {bold=true, foreground=255},
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E = {foreground = Screen.colors.Grey100, background = Screen.colors.Red},
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cr = {bold = true, foreground = Screen.colors.SeaGreen4},
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})
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command("set display-=msgsep")
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end)
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it('works', function()
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command([[lua
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function Test(a)
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print(a)
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debug.debug()
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print(a * 100)
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end
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]])
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feed(':lua Test()\n')
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screen:expect([[
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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nil |
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lua_debug> ^ |
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]])
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feed('print("TEST")\n')
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screen:expect([[
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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nil |
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lua_debug> print("TEST") |
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TEST |
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lua_debug> ^ |
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]])
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feed('<C-c>')
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screen:expect{grid=[[
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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nil |
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lua_debug> print("TEST") |
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TEST |
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{E:E5108: Error executing lua [string ":lua"]:5: attempt}|
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{E: to perform arithmetic on local 'a' (a nil value)} |
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Interrupt: {cr:Press ENTER or type command to continue}^ |
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]]}
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feed('<C-l>:lua Test()\n')
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screen:expect([[
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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nil |
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lua_debug> ^ |
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]])
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feed('\n')
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screen:expect{grid=[[
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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nil |
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lua_debug> |
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{E:E5108: Error executing lua [string ":lua"]:5: attempt}|
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{E: to perform arithmetic on local 'a' (a nil value)} |
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{cr:Press ENTER or type command to continue}^ |
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]]}
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end)
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it("can be safely exited with 'cont'", function()
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feed('<cr>')
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feed(':lua debug.debug() print("x")<cr>')
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screen:expect{grid=[[
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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lua_debug> ^ |
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]]}
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feed("conttt<cr>") -- misspelled cont; invalid syntax
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screen:expect{grid=[[
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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lua_debug> conttt |
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{E:E5115: Error while loading debug string: (debug comma}|
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{E:nd):1: '=' expected near '<eof>'} |
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lua_debug> ^ |
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]]}
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feed("cont<cr>") -- exactly "cont", exit now
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screen:expect{grid=[[
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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lua_debug> conttt |
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{E:E5115: Error while loading debug string: (debug comma}|
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{E:nd):1: '=' expected near '<eof>'} |
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lua_debug> cont |
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x |
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{cr:Press ENTER or type command to continue}^ |
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]]}
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feed('<cr>')
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screen:expect{grid=[[
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^ |
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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{0:~ }|
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]]}
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end)
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end)
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describe('os.getenv', function()
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it('returns nothing for undefined env var', function()
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eq(NIL, funcs.luaeval('os.getenv("XTEST_1")'))
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end)
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it('returns env var set by the parent process', function()
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local value = 'foo'
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clear({env = {['XTEST_1']=value}})
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eq(value, funcs.luaeval('os.getenv("XTEST_1")'))
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end)
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it('returns env var set by let', function()
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local value = 'foo'
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meths.command('let $XTEST_1 = "'..value..'"')
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eq(value, funcs.luaeval('os.getenv("XTEST_1")'))
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end)
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end)
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