@ -1,4 +1,5 @@
#!/usr/bin/env python
# coding: utf-8
from __future__ import unicode_literals
@ -11,7 +12,7 @@ sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
import math
import re
from youtube_dl . compat import compat_str
from youtube_dl . compat import compat_str as str
from youtube_dl . jsinterp import JS_Undefined , JSInterpreter
NaN = object ( )
@ -19,7 +20,7 @@ NaN = object()
class TestJSInterpreter ( unittest . TestCase ) :
def _test ( self , jsi_or_code , expected , func = ' f ' , args = ( ) ) :
if isinstance ( jsi_or_code , compat_ str) :
if isinstance ( jsi_or_code , str) :
jsi_or_code = JSInterpreter ( jsi_or_code )
got = jsi_or_code . call_function ( func , * args )
if expected is NaN :
@ -89,7 +90,35 @@ class TestJSInterpreter(unittest.TestCase):
self . _test ( ' function f() { return 19 & 21;} ' , 17 )
self . _test ( ' function f() { return 11 >> 2;} ' , 2 )
self . _test ( ' function f() { return []? 2+3: 4;} ' , 5 )
# equality
self . _test ( ' function f() { return 1 == 1} ' , True )
self . _test ( ' function f() { return 1 == 1.0} ' , True )
self . _test ( ' function f() { return 1 == " 1 " } ' , True )
self . _test ( ' function f() { return 1 == 2} ' , False )
self . _test ( ' function f() { return 1 != " 1 " } ' , False )
self . _test ( ' function f() { return 1 != 2} ' , True )
self . _test ( ' function f() { var x = {a: 1} ; var y = x; return x == y} ' , True )
self . _test ( ' function f() { var x = {a: 1} ; return x == {a: 1} } ' , False )
self . _test ( ' function f() { return NaN == NaN} ' , False )
self . _test ( ' function f() { return null == undefined} ' , True )
self . _test ( ' function f() { return " spam, eggs " == " spam, eggs " } ' , True )
# strict equality
self . _test ( ' function f() { return 1 === 1} ' , True )
self . _test ( ' function f() { return 1 === 1.0} ' , True )
self . _test ( ' function f() { return 1 === " 1 " } ' , False )
self . _test ( ' function f() { return 1 === 2} ' , False )
self . _test ( ' function f() { var x = {a: 1} ; var y = x; return x === y} ' , True )
self . _test ( ' function f() { var x = {a: 1} ; return x === {a: 1} } ' , False )
self . _test ( ' function f() { return NaN === NaN} ' , False )
self . _test ( ' function f() { return null === undefined} ' , False )
self . _test ( ' function f() { return null === null} ' , True )
self . _test ( ' function f() { return undefined === undefined} ' , True )
self . _test ( ' function f() { return " uninterned " === " uninterned " } ' , True )
self . _test ( ' function f() { return 1 === 1} ' , True )
self . _test ( ' function f() { return 1 === " 1 " } ' , False )
self . _test ( ' function f() { return 1 !== 1} ' , False )
self . _test ( ' function f() { return 1 !== " 1 " } ' , True )
# expressions
self . _test ( ' function f() { return 0 && 1 || 2;} ' , 2 )
self . _test ( ' function f() { return 0 ?? 42;} ' , 0 )
self . _test ( ' function f() { return " life, the universe and everything " < 42;} ' , False )