mirror of
https://github.com/neovim/neovim.git
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363 lines
12 KiB
Lua
363 lines
12 KiB
Lua
-- Test suite for checking :lua* commands
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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 eq = t.eq
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local NIL = vim.NIL
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local eval = n.eval
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local feed = n.feed
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local clear = n.clear
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local matches = t.matches
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local api = n.api
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local exec_lua = n.exec_lua
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local exec_capture = n.exec_capture
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local fn = n.fn
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local source = n.source
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local dedent = t.dedent
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local command = n.command
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local exc_exec = n.exc_exec
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local pcall_err = t.pcall_err
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local write_file = t.write_file
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local remove_trace = t.remove_trace
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before_each(clear)
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describe(':lua', function()
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it('works', function()
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eq('', exec_capture('lua vim.api.nvim_buf_set_lines(1, 1, 2, false, {"TEST"})'))
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eq({ '', 'TEST' }, api.nvim_buf_get_lines(0, 0, 100, false))
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source([[
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lua << EOF
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vim.api.nvim_buf_set_lines(1, 1, 2, false, {"TSET"})
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EOF]])
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eq({ '', 'TSET' }, api.nvim_buf_get_lines(0, 0, 100, false))
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source([[
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lua << EOF
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vim.api.nvim_buf_set_lines(1, 1, 2, false, {"SETT"})]])
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eq({ '', 'SETT' }, api.nvim_buf_get_lines(0, 0, 100, false))
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source([[
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lua << EOF
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vim.api.nvim_buf_set_lines(1, 1, 2, false, {"ETTS"})
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vim.api.nvim_buf_set_lines(1, 2, 3, false, {"TTSE"})
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vim.api.nvim_buf_set_lines(1, 3, 4, false, {"STTE"})
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EOF]])
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eq({ '', 'ETTS', 'TTSE', 'STTE' }, api.nvim_buf_get_lines(0, 0, 100, false))
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matches(
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'.*Vim%(lua%):E15: Invalid expression: .*',
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pcall_err(
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source,
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[[
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lua << eval EOF
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{}
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EOF
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]]
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)
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)
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end)
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it('throws catchable errors', function()
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eq('Vim(lua):E471: Argument required', pcall_err(command, 'lua'))
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eq(
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[[Vim(lua):E5107: Error loading lua [string ":lua"]:0: unexpected symbol near ')']],
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pcall_err(command, 'lua ()')
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)
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eq(
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[[Vim(lua):E5108: Error executing lua [string ":lua"]:1: TEST]],
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remove_trace(exc_exec('lua error("TEST")'))
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)
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eq(
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[[Vim(lua):E5108: Error executing lua [string ":lua"]:1: Invalid buffer id: -10]],
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remove_trace(exc_exec('lua vim.api.nvim_buf_set_lines(-10, 1, 1, false, {"TEST"})'))
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)
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eq({ '' }, api.nvim_buf_get_lines(0, 0, 100, false))
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end)
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it('works with NULL errors', function()
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eq([=[Vim(lua):E5108: Error executing lua [NULL]]=], exc_exec('lua error(nil)'))
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end)
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it('accepts embedded NLs without heredoc', function()
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-- Such code is usually used for `:execute 'lua' {generated_string}`:
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-- heredocs do not work in this case.
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command([[
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lua
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vim.api.nvim_buf_set_lines(1, 1, 2, false, {"ETTS"})
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vim.api.nvim_buf_set_lines(1, 2, 3, false, {"TTSE"})
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vim.api.nvim_buf_set_lines(1, 3, 4, false, {"STTE"})
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]])
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eq({ '', 'ETTS', 'TTSE', 'STTE' }, api.nvim_buf_get_lines(0, 0, 100, false))
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end)
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it('preserves global and not preserves local variables', function()
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eq('', exec_capture('lua gvar = 42'))
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eq('', exec_capture('lua local lvar = 100500'))
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eq(NIL, fn.luaeval('lvar'))
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eq(42, fn.luaeval('gvar'))
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end)
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it('works with long strings', function()
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local s = ('x'):rep(100500)
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eq(
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'Vim(lua):E5107: Error loading lua [string ":lua"]:0: unfinished string near \'<eof>\'',
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pcall_err(command, ('lua vim.api.nvim_buf_set_lines(1, 1, 2, false, {"%s})'):format(s))
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)
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eq({ '' }, api.nvim_buf_get_lines(0, 0, -1, false))
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eq('', exec_capture(('lua vim.api.nvim_buf_set_lines(1, 1, 2, false, {"%s"})'):format(s)))
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eq({ '', s }, api.nvim_buf_get_lines(0, 0, -1, false))
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end)
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it('can show multiline error messages', function()
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local screen = Screen.new(40, 10)
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screen:set_default_attr_ids({
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[1] = { bold = true, foreground = Screen.colors.Blue1 },
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[2] = { bold = true, reverse = true },
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[3] = { foreground = Screen.colors.Grey100, background = Screen.colors.Red },
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[4] = { bold = true, foreground = Screen.colors.SeaGreen4 },
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})
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feed(':lua error("fail\\nmuch error\\nsuch details")<cr>')
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screen:expect {
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grid = [[
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{2: }|
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{3:E5108: Error executing lua [string ":lua}|
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{3:"]:1: fail} |
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{3:much error} |
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{3:such details} |
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{3:stack traceback:} |
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{3: [C]: in function 'error'} |
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{3: [string ":lua"]:1: in main chunk}|
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{4:Press ENTER or type command to continue}^ |
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]],
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}
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feed('<cr>')
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screen:expect {
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grid = [[
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^ |
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{1:~ }|*8
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]],
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}
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eq(
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'E5108: Error executing lua [string ":lua"]:1: fail\nmuch error\nsuch details',
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remove_trace(eval('v:errmsg'))
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)
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local status, err = pcall(command, 'lua error("some error\\nin a\\nAPI command")')
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local expected =
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'Vim(lua):E5108: Error executing lua [string ":lua"]:1: some error\nin a\nAPI command'
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eq(false, status)
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eq(expected, string.sub(remove_trace(err), -string.len(expected)))
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feed(':messages<cr>')
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screen:expect {
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grid = [[
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{2: }|
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{3:E5108: Error executing lua [string ":lua}|
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{3:"]:1: fail} |
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{3:much error} |
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{3:such details} |
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{3:stack traceback:} |
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{3: [C]: in function 'error'} |
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{3: [string ":lua"]:1: in main chunk}|
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{4:Press ENTER or type command to continue}^ |
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]],
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}
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end)
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it('prints result of =expr', function()
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exec_lua('x = 5')
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eq('5', exec_capture(':lua =x'))
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eq('5', exec_capture('=x'))
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exec_lua('x = "5"')
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eq('"5"', exec_capture(':lua =x'))
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eq('"5"', exec_capture('=x'))
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exec_lua("function x() return 'hello' end")
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eq('"hello"', exec_capture(':lua = x()'))
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exec_lua("function x() return 'hello ' end")
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eq('"hello "', exec_capture(':lua = x()'))
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exec_lua('x = {a = 1, b = 2}')
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eq('{\n a = 1,\n b = 2\n}', exec_capture(':lua =x'))
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exec_lua(function()
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function _G.x(success)
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if success then
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return true, 'Return value'
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else
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return false, nil, 'Error message'
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end
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end
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end)
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eq(
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dedent [[
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true
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"Return value"]],
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exec_capture(':lua =x(true)')
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)
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eq(
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dedent [[
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false
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nil
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"Error message"]],
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exec_capture('=x(false)')
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)
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end)
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it('with range', function()
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local screen = Screen.new(40, 10)
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api.nvim_buf_set_lines(0, 0, 0, 0, { 'nonsense', 'function x() print "hello" end', 'x()' })
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-- ":{range}lua" fails on invalid Lua code.
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eq(
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[[:{range}lua buffer=1: Vim(lua):E5107: Error loading lua ]]
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.. [[[string ":{range}lua buffer=1"]:0: '=' expected near '<eof>']],
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pcall_err(command, '1lua')
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)
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-- ":{range}lua" executes valid Lua code.
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feed(':2,3lua<CR>')
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screen:expect {
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grid = [[
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nonsense |
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function x() print "hello" end |
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x() |
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^ |
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{1:~ }|*5
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hello |
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]],
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attr_ids = {
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[1] = { foreground = Screen.colors.Blue, bold = true },
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},
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}
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-- ":{range}lua {code}" executes {code}, ignoring {range}
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eq('', exec_capture('1lua gvar = 42'))
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eq(42, fn.luaeval('gvar'))
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end)
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end)
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describe(':luado command', function()
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it('works', function()
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api.nvim_buf_set_lines(0, 0, 1, false, { 'ABC', 'def', 'gHi' })
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eq('', exec_capture('luado lines = (lines or {}) lines[#lines + 1] = {linenr, line}'))
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eq({ 'ABC', 'def', 'gHi' }, api.nvim_buf_get_lines(0, 0, -1, false))
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eq({ { 1, 'ABC' }, { 2, 'def' }, { 3, 'gHi' } }, fn.luaeval('lines'))
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-- Automatic transformation of numbers
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eq('', exec_capture('luado return linenr'))
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eq({ '1', '2', '3' }, api.nvim_buf_get_lines(0, 0, -1, false))
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eq('', exec_capture('luado return ("<%02x>"):format(line:byte())'))
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eq({ '<31>', '<32>', '<33>' }, api.nvim_buf_get_lines(0, 0, -1, false))
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end)
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it('stops processing lines when suddenly out of lines', function()
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api.nvim_buf_set_lines(0, 0, 1, false, { 'ABC', 'def', 'gHi' })
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eq('', exec_capture('2,$luado runs = ((runs or 0) + 1) vim.api.nvim_command("%d")'))
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eq({ '' }, api.nvim_buf_get_lines(0, 0, -1, false))
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eq(1, fn.luaeval('runs'))
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api.nvim_buf_set_lines(0, 0, -1, false, { 'one', 'two', 'three' })
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eq('', exec_capture('luado vim.api.nvim_command("%d")'))
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eq({ '' }, api.nvim_buf_get_lines(0, 0, -1, false))
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api.nvim_buf_set_lines(0, 0, -1, false, { 'one', 'two', 'three' })
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eq('', exec_capture('luado vim.api.nvim_command("1,2d")'))
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eq({ 'three' }, api.nvim_buf_get_lines(0, 0, -1, false))
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api.nvim_buf_set_lines(0, 0, -1, false, { 'one', 'two', 'three' })
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eq('', exec_capture('luado vim.api.nvim_command("2,3d"); return "REPLACED"'))
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eq({ 'REPLACED' }, api.nvim_buf_get_lines(0, 0, -1, false))
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api.nvim_buf_set_lines(0, 0, -1, false, { 'one', 'two', 'three' })
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eq('', exec_capture('2,3luado vim.api.nvim_command("1,2d"); return "REPLACED"'))
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eq({ 'three' }, api.nvim_buf_get_lines(0, 0, -1, false))
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end)
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it('fails on errors', function()
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eq(
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[[Vim(luado):E5109: Error loading lua: [string ":luado"]:0: unexpected symbol near ')']],
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pcall_err(command, 'luado ()')
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)
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eq(
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[[Vim(luado):E5111: Error calling lua: [string ":luado"]:0: attempt to perform arithmetic on global 'liness' (a nil value)]],
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pcall_err(command, 'luado return liness + 1')
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)
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end)
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it('works with NULL errors', function()
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eq([=[Vim(luado):E5111: Error calling lua: [NULL]]=], exc_exec('luado error(nil)'))
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end)
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it('fails in sandbox when needed', function()
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api.nvim_buf_set_lines(0, 0, 1, false, { 'ABC', 'def', 'gHi' })
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eq(
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'Vim(luado):E48: Not allowed in sandbox: sandbox luado runs = (runs or 0) + 1',
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pcall_err(command, 'sandbox luado runs = (runs or 0) + 1')
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)
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eq(NIL, fn.luaeval('runs'))
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end)
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it('works with long strings', function()
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local s = ('x'):rep(100500)
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eq(
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'Vim(luado):E5109: Error loading lua: [string ":luado"]:0: unfinished string near \'<eof>\'',
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pcall_err(command, ('luado return "%s'):format(s))
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)
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eq({ '' }, api.nvim_buf_get_lines(0, 0, -1, false))
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eq('', exec_capture(('luado return "%s"'):format(s)))
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eq({ s }, api.nvim_buf_get_lines(0, 0, -1, false))
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end)
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end)
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describe(':luafile', function()
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local fname = 'Xtest-functional-lua-commands-luafile'
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after_each(function()
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os.remove(fname)
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end)
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it('works', function()
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write_file(
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fname,
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[[
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vim.api.nvim_buf_set_lines(1, 1, 2, false, {"ETTS"})
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vim.api.nvim_buf_set_lines(1, 2, 3, false, {"TTSE"})
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vim.api.nvim_buf_set_lines(1, 3, 4, false, {"STTE"})
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]]
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)
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eq('', exec_capture('luafile ' .. fname))
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eq({ '', 'ETTS', 'TTSE', 'STTE' }, api.nvim_buf_get_lines(0, 0, 100, false))
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end)
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it('correctly errors out', function()
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write_file(fname, '()')
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eq(
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("Vim(luafile):E5112: Error while creating lua chunk: %s:1: unexpected symbol near ')'"):format(
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fname
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),
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exc_exec('luafile ' .. fname)
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)
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write_file(fname, 'vimm.api.nvim_buf_set_lines(1, 1, 2, false, {"ETTS"})')
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eq(
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("Vim(luafile):E5113: Error while calling lua chunk: %s:1: attempt to index global 'vimm' (a nil value)"):format(
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fname
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),
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remove_trace(exc_exec('luafile ' .. fname))
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)
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end)
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it('works with NULL errors', function()
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write_file(fname, 'error(nil)')
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eq(
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[=[Vim(luafile):E5113: Error while calling lua chunk: [NULL]]=],
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exc_exec('luafile ' .. fname)
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)
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end)
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end)
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