mediawiki-extensions-Scribunto/tests/phpunit/engines/LuaCommon/CommonTests.lua
Kunal Mehta 31820c673a Move tests into tests/phpunit and remove UnitTestsList hook
This takes advantage of extension.json's unit tests autodiscovery
mechanism.

Bug: T142120
Change-Id: Id526f3368fc73ba7e6ef1d793ea70ab05fbd9517
2017-07-07 13:50:39 -07:00

388 lines
11 KiB
Lua

local testframework = require 'Module:TestFramework'
local test = {}
function test.clone1()
local x = 1
local y = mw.clone( x )
return ( x == y )
end
function test.clone2()
local x = { 'a' }
local y = mw.clone( x )
assert( x ~= y )
return testframework.deepEquals( x, y )
end
function test.clone2b()
local x = { 'a' }
local y = mw.clone( x )
assert( x ~= y )
y[2] = 'b'
return testframework.deepEquals( x, y )
end
function test.clone3()
local mt = { __add = function() end }
local x = {}
setmetatable( x, mt )
local y = mw.clone( x )
assert( getmetatable( x ) ~= getmetatable( y ) )
return testframework.deepEquals( getmetatable( x ), getmetatable( y ) )
end
function test.clone4()
local x = {}
x.x = x
local y = mw.clone( x )
assert( x ~= y )
return y == y.x
end
function test.setfenv1()
setfenv( 0, {} )
end
function test.setfenv2()
setfenv( 1000, {} )
end
function test.setfenv3()
local function jailbreak()
setfenv( 2, {} )
end
local new_setfenv, new_getfenv = mw.makeProtectedEnvFuncsForTest( { [_G] = true }, {} )
setfenv( jailbreak, {setfenv = new_setfenv} )
jailbreak()
end
function test.setfenv4()
-- Set an unprotected environment at a higher stack level than a protected
-- environment. It's assumed that any higher-level environment will protect
-- itself with its own setfenv wrapper, so this succeeds.
local function level3()
local protected = {setfenv = setfenv, getfenv = getfenv, mw = mw}
local function level2()
local function level1()
setfenv( 3, {} )
end
local env = {}
env.setfenv, env.getfenv = mw.makeProtectedEnvFuncsForTest(
{[protected] = true}, {} )
setfenv( level1, env )()
end
setfenv( level2, protected )()
end
local unprotected = {setfenv = setfenv, getfenv = getfenv, mw = mw}
setfenv( level3, unprotected )()
assert( getfenv( level3 ) ~= unprotected )
return 'ok'
end
function test.setfenv5()
local function allowed()
(function() setfenv( 2, {} ) end )()
end
local new_setfenv, new_getfenv = mw.makeProtectedEnvFuncsForTest( { [_G] = true }, {} )
setfenv( allowed, {setfenv = new_setfenv} )()
return 'ok'
end
function test.setfenv6()
local function target() end
local function jailbreak()
setfenv( target, {} )
end
local new_setfenv, new_getfenv = mw.makeProtectedEnvFuncsForTest( {}, { [target] = true } )
setfenv( jailbreak, {setfenv = new_setfenv} )()
end
function test.setfenv7()
setfenv( {}, {} )
end
function test.getfenv1()
assert( getfenv( 1 ) == _G )
return 'ok'
end
function test.getfenv2()
getfenv( 0 )
end
function test.getfenv3()
local function foo()
return getfenv( 2 )
end
local function bar()
return foo()
end
-- The "at level #" bit varies between environments, so
-- catch the error and strip that part out
local ok, err = pcall( bar )
if not ok then
err = string.gsub( err, '^%S+:%d+: ', '' )
err = string.gsub( err, ' at level %d$', '' )
error( err )
end
end
function test.executeExpensiveCalls( n )
for i = 1, n do
mw.incrementExpensiveFunctionCount()
end
return 'Did not error out'
end
function test.stringMetatableHidden1()
return getmetatable( "" )
end
function test.stringMetatableHidden2()
string.foo = 42
return ("").foo
end
local pairs_test_table = {}
setmetatable( pairs_test_table, {
__pairs = function () return 1, 2, 3, 'ignore' end,
__ipairs = function () return 4, 5, 6, 'ignore' end,
} )
function test.noLeaksViaPackageLoaded()
assert( package.loaded.debug == debug, "package.loaded.debug ~= debug" )
assert( package.loaded.string == string, "package.loaded.string ~= string" )
assert( package.loaded.math == math, "package.loaded.math ~= math" )
assert( package.loaded.io == io, "package.loaded.io ~= io" )
assert( package.loaded.os == os, "package.loaded.os ~= os" )
assert( package.loaded.table == table, "package.loaded.table ~= table" )
assert( package.loaded._G == _G , "package.loaded._G ~= _G " )
assert( package.loaded.coroutine == coroutine, "package.loaded.coroutine ~= coroutine" )
assert( package.loaded.package == package, "package.loaded.package ~= package" )
return 'ok'
end
test.loadData = {}
function test.loadData.get( ... )
local d = mw.loadData( 'Module:CommonTests-data' )
for i = 1, select( '#', ... ) do
local k = select( i, ... )
d = d[k]
end
return d
end
function test.loadData.set( v, ... )
local d = mw.loadData( 'Module:CommonTests-data' )
local n = select( '#', ... )
for i = 1, n - 1 do
local k = select( i, ... )
d = d[k]
end
d[select( n, ... )] = v
return d[select( n, ... )]
end
function test.loadData.recursion()
local d = mw.loadData( 'Module:CommonTests-data' )
return d == d.t, d.t == d.t.t, d.table2 == d.table
end
function test.loadData.iterate( func )
local d = mw.loadData( 'Module:CommonTests-data' )
local ret = {}
for k, v in func( d.table ) do
ret[k] = v
end
return ret
end
function test.loadData.setmetatable()
local d = mw.loadData( 'Module:CommonTests-data' )
setmetatable( d, {} )
return 'setmetatable succeeded'
end
function test.loadData.rawset()
-- We can't easily prevent rawset (and it's not worth trying to redefine
-- it), but we can make sure it doesn't affect other instances of the data
local d1 = mw.loadData( 'Module:CommonTests-data' )
local d2 = mw.loadData( 'Module:CommonTests-data' )
rawset( d1, 'str', 'ugh' )
local d3 = mw.loadData( 'Module:CommonTests-data' )
return d1.str, d2.str, d3.str
end
return testframework.getTestProvider( {
{ name = 'clone', func = test.clone1,
expect = { true },
},
{ name = 'clone table', func = test.clone2,
expect = { true },
},
{ name = 'clone table then modify', func = test.clone2b,
expect = { false, { 2 }, nil, 'b' },
},
{ name = 'clone table with metatable', func = test.clone3,
expect = { true },
},
{ name = 'clone recursive table', func = test.clone4,
expect = { true },
},
{ name = 'setfenv global', func = test.setfenv1,
expect = "'setfenv' cannot set the global environment, it is protected",
},
{ name = 'setfenv invalid level', func = test.setfenv2,
expect = "'setfenv' cannot set an environment at a level greater than 10",
},
{ name = 'setfenv invalid environment', func = test.setfenv3,
expect = "'setfenv' cannot set the requested environment, it is protected",
},
{ name = 'setfenv on unprotected past protected', func = test.setfenv4,
expect = { 'ok' },
},
{ name = 'setfenv from inside protected', func = test.setfenv5,
expect = { 'ok' },
},
{ name = 'setfenv protected function', func = test.setfenv6,
expect = "'setfenv' cannot be called on a protected function",
},
{ name = 'setfenv on a non-function', func = test.setfenv7,
expect = "'setfenv' can only be called with a function or integer as the first argument",
},
{ name = 'getfenv(1)', func = test.getfenv1,
expect = { 'ok' },
},
{ name = 'getfenv(0)', func = test.getfenv2,
expect = "'getfenv' cannot get the global environment",
},
{ name = 'getfenv with tail call', func = test.getfenv3,
expect = "no function environment for tail call",
},
{ name = 'Not quite too many expensive function calls',
func = test.executeExpensiveCalls, args = { 10 },
expect = { 'Did not error out' }
},
{ name = 'Too many expensive function calls',
func = test.executeExpensiveCalls, args = { 11 },
expect = 'too many expensive function calls'
},
{ name = 'string metatable is hidden', func = test.stringMetatableHidden1,
expect = { nil }
},
{ name = 'string is not string metatable', func = test.stringMetatableHidden2,
expect = { nil }
},
{ name = 'pairs with __pairs',
func = pairs, args = { pairs_test_table },
expect = { 1, 2, 3 },
},
{ name = 'ipairs with __ipairs',
func = ipairs, args = { pairs_test_table },
expect = { 4, 5, 6 },
},
{ name = 'package.loaded does not leak references to out-of-environment objects',
func = test.noLeaksViaPackageLoaded,
expect = { 'ok' },
},
{ name = 'mw.loadData, returning non-table',
func = mw.loadData, args = { 'Module:CommonTests-data-fail1' },
expect = "Module:CommonTests-data-fail1 returned string, table expected",
},
{ name = 'mw.loadData, containing function',
func = mw.loadData, args = { 'Module:CommonTests-data-fail2' },
expect = "data for mw.loadData contains unsupported data type 'function'",
},
{ name = 'mw.loadData, containing table-with-metatable',
func = mw.loadData, args = { 'Module:CommonTests-data-fail3' },
expect = "data for mw.loadData contains a table with a metatable",
},
{ name = 'mw.loadData, containing function as key',
func = mw.loadData, args = { 'Module:CommonTests-data-fail4' },
expect = "data for mw.loadData contains unsupported data type 'function'",
},
{ name = 'mw.loadData, containing table-with-metatable as key',
func = mw.loadData, args = { 'Module:CommonTests-data-fail5' },
expect = "data for mw.loadData contains a table as a key",
},
{ name = 'mw.loadData, getter (true)',
func = test.loadData.get, args = { 'true' },
expect = { true }
},
{ name = 'mw.loadData, getter (false)',
func = test.loadData.get, args = { 'false' },
expect = { false }
},
{ name = 'mw.loadData, getter (NaN)',
func = test.loadData.get, args = { 'NaN' },
expect = { 0/0 }
},
{ name = 'mw.loadData, getter (inf)',
func = test.loadData.get, args = { 'inf' },
expect = { 1/0 }
},
{ name = 'mw.loadData, getter (num)',
func = test.loadData.get, args = { 'num' },
expect = { 12.5 }
},
{ name = 'mw.loadData, getter (str)',
func = test.loadData.get, args = { 'str' },
expect = { 'foo bar' }
},
{ name = 'mw.loadData, getter (table.2)',
func = test.loadData.get, args = { 'table', 2 },
expect = { 'two' }
},
{ name = 'mw.loadData, getter (t.t.t.t.str)',
func = test.loadData.get, args = { 't', 't', 't', 't', 'str' },
expect = { 'foo bar' }
},
{ name = 'mw.loadData, getter recursion',
func = test.loadData.recursion,
expect = { true, true, true },
},
{ name = 'mw.loadData, pairs',
func = test.loadData.iterate, args = { pairs },
expect = { { 'one', 'two', 'three', foo = 'bar' } },
},
{ name = 'mw.loadData, ipairs',
func = test.loadData.iterate, args = { ipairs },
expect = { { 'one', 'two', 'three' } },
},
{ name = 'mw.loadData, setmetatable',
func = test.loadData.setmetatable,
expect = "cannot change a protected metatable"
},
{ name = 'mw.loadData, setter (1)',
func = test.loadData.set, args = { 'ugh', 'str' },
expect = "table from mw.loadData is read-only",
},
{ name = 'mw.loadData, setter (2)',
func = test.loadData.set, args = { 'ugh', 'table', 2 },
expect = "table from mw.loadData is read-only",
},
{ name = 'mw.loadData, setter (3)',
func = test.loadData.set, args = { 'ugh', 't' },
expect = "table from mw.loadData is read-only",
},
{ name = 'mw.loadData, rawset',
func = test.loadData.rawset,
expect = { 'ugh', 'foo bar', 'foo bar' },
},
} )