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303 lines
13 KiB
Lua
303 lines
13 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 neq = helpers.neq
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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 redir_exec = helpers.redir_exec
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local alter_slashes = helpers.alter_slashes
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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('\nabc', redir_exec('lua print("abc")'))
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eq('\nabc', redir_exec('luado print("abc")'))
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eq('\nabc', redir_exec('call luaeval("print(\'abc\')")'))
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write_file(fname, 'print("abc")')
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eq('\nabc', redir_exec('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('', redir_exec('luafile ' .. fname))
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eq('\nE5114: Error while converting print argument #2: [NULL]',
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redir_exec('lua print("foo", v_nilerr, "bar")'))
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eq('\nE5114: Error while converting print argument #2: Xtest-functional-lua-overrides-luafile:2: abc',
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redir_exec('lua print("foo", v_abcerr, "bar")'))
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eq('\nE5114: Error while converting print argument #2: <Unknown error: lua_tolstring returned NULL for tostring result>',
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redir_exec('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('\nabc ^@ def\nghi^@^@^@jkl\nTEST\n\n\nT\n',
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redir_exec([[lua print("abc \0 def\nghi\0\0\0jkl\nTEST\n\n\nT\n")]]))
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eq('\nabc ^@ def\nghi^@^@^@jkl\nTEST\n\n\nT^@',
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redir_exec([[lua print("abc \0 def\nghi\0\0\0jkl\nTEST\n\n\nT\0")]]))
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eq('\nT^@', redir_exec([[lua print("T\0")]]))
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eq('\nT\n', redir_exec([[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('', redir_exec('lua print("")'))
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eq('\n def', redir_exec('lua print("", "def")'))
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eq('\nabc ', redir_exec('lua print("abc", "")'))
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eq('\nabc def', redir_exec('lua print("abc", "", "def")'))
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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([[
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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:E5105: Error while calling lua chunk: [string "<VimL }|
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{E:compiled string>"]:5: attempt to perform arithmetic o}|
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{E:n 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([[
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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:E5105: Error while calling lua chunk: [string "<VimL }|
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{E:compiled string>"]:5: attempt to perform arithmetic o}|
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{E:n 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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end)
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describe('package.path/package.cpath', function()
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local sl = alter_slashes
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local function get_new_paths(sufs, runtimepaths)
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runtimepaths = runtimepaths or meths.list_runtime_paths()
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local new_paths = {}
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local sep = package.config:sub(1, 1)
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for _, v in ipairs(runtimepaths) do
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for _, suf in ipairs(sufs) do
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new_paths[#new_paths + 1] = v .. sep .. 'lua' .. suf
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end
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end
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return new_paths
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end
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local function execute_lua(cmd, ...)
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return meths.execute_lua(cmd, {...})
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end
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local function eval_lua(expr, ...)
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return meths.execute_lua('return ' .. expr, {...})
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end
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local function set_path(which, value)
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return execute_lua('package[select(1, ...)] = select(2, ...)', which, value)
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end
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it('contains directories from &runtimepath on first invocation', function()
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local new_paths = get_new_paths(sl{'/?.lua', '/?/init.lua'})
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local new_paths_str = table.concat(new_paths, ';')
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eq(new_paths_str, eval_lua('package.path'):sub(1, #new_paths_str))
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local new_cpaths = get_new_paths(iswin() and {'\\?.dll'} or {'/?.so'})
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local new_cpaths_str = table.concat(new_cpaths, ';')
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eq(new_cpaths_str, eval_lua('package.cpath'):sub(1, #new_cpaths_str))
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end)
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it('puts directories from &runtimepath always at the start', function()
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meths.set_option('runtimepath', 'a,b')
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local new_paths = get_new_paths(sl{'/?.lua', '/?/init.lua'}, {'a', 'b'})
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local new_paths_str = table.concat(new_paths, ';')
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eq(new_paths_str, eval_lua('package.path'):sub(1, #new_paths_str))
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set_path('path', sl'foo/?.lua;foo/?/init.lua;' .. new_paths_str)
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neq(new_paths_str, eval_lua('package.path'):sub(1, #new_paths_str))
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command('set runtimepath+=c')
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new_paths = get_new_paths(sl{'/?.lua', '/?/init.lua'}, {'a', 'b', 'c'})
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new_paths_str = table.concat(new_paths, ';')
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eq(new_paths_str, eval_lua('package.path'):sub(1, #new_paths_str))
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end)
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it('understands uncommon suffixes', function()
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set_path('cpath', './?/foo/bar/baz/x.nlua')
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meths.set_option('runtimepath', 'a')
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local new_paths = get_new_paths({'/?/foo/bar/baz/x.nlua'}, {'a'})
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local new_paths_str = table.concat(new_paths, ';')
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eq(new_paths_str, eval_lua('package.cpath'):sub(1, #new_paths_str))
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set_path('cpath', './yyy?zzz/x')
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meths.set_option('runtimepath', 'b')
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new_paths = get_new_paths({'/yyy?zzz/x'}, {'b'})
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new_paths_str = table.concat(new_paths, ';')
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eq(new_paths_str, eval_lua('package.cpath'):sub(1, #new_paths_str))
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set_path('cpath', './yyy?zzz/123?ghi/x')
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meths.set_option('runtimepath', 'b')
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new_paths = get_new_paths({'/yyy?zzz/123?ghi/x'}, {'b'})
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new_paths_str = table.concat(new_paths, ';')
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eq(new_paths_str, eval_lua('package.cpath'):sub(1, #new_paths_str))
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end)
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it('preserves empty items', function()
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local many_empty_path = ';;;;;;'
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local many_empty_cpath = ';;;;;;./?.luaso'
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set_path('path', many_empty_path)
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set_path('cpath', many_empty_cpath)
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meths.set_option('runtimepath', 'a')
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local new_paths = get_new_paths(sl{'/?.lua', '/?/init.lua'}, {'a'})
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local new_paths_str = table.concat(new_paths, ';')
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eq(new_paths_str .. ';' .. many_empty_path, eval_lua('package.path'))
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local new_cpaths = get_new_paths({'/?.luaso'}, {'a'})
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local new_cpaths_str = table.concat(new_cpaths, ';')
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eq(new_cpaths_str .. ';' .. many_empty_cpath, eval_lua('package.cpath'))
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end)
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it('preserves empty value', function()
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set_path('path', '')
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meths.set_option('runtimepath', 'a')
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local new_paths = get_new_paths(sl{'/?.lua', '/?/init.lua'}, {'a'})
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local new_paths_str = table.concat(new_paths, ';')
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eq(new_paths_str .. ';', eval_lua('package.path'))
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end)
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it('purges out all additions if runtimepath is set to empty', function()
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local new_paths = get_new_paths(sl{'/?.lua', '/?/init.lua'})
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local new_paths_str = table.concat(new_paths, ';')
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local path = eval_lua('package.path')
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eq(new_paths_str, path:sub(1, #new_paths_str))
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local new_cpaths = get_new_paths(iswin() and {'\\?.dll'} or {'/?.so'})
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local new_cpaths_str = table.concat(new_cpaths, ';')
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local cpath = eval_lua('package.cpath')
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eq(new_cpaths_str, cpath:sub(1, #new_cpaths_str))
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meths.set_option('runtimepath', '')
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eq(path:sub(#new_paths_str + 2, -1), eval_lua('package.path'))
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eq(cpath:sub(#new_cpaths_str + 2, -1), eval_lua('package.cpath'))
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end)
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it('works with paths with escaped commas', function()
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meths.set_option('runtimepath', '\\,')
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local new_paths = get_new_paths(sl{'/?.lua', '/?/init.lua'}, {','})
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local new_paths_str = table.concat(new_paths, ';')
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eq(new_paths_str, eval_lua('package.path'):sub(1, #new_paths_str))
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end)
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it('ignores paths with semicolons', function()
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meths.set_option('runtimepath', 'foo;bar,\\,')
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local new_paths = get_new_paths(sl{'/?.lua', '/?/init.lua'}, {','})
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local new_paths_str = table.concat(new_paths, ';')
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eq(new_paths_str, eval_lua('package.path'):sub(1, #new_paths_str))
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end)
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end)
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