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test_jsinterp.py (32857B)

    

  1. #!/usr/bin/env python
  2. # coding: utf-8
  4. from __future__ import unicode_literals
  6. # Allow direct execution
  7. import os
  8. import sys
  9. import unittest
  11. sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
  13. import math
  14. import re
  15. import time
  17. from youtube_dl.compat import compat_str as str
  18. from youtube_dl.jsinterp import JS_Undefined, JSInterpreter
  20. NaN = object()
  23. class TestJSInterpreter(unittest.TestCase):
  24.     def _test(self, jsi_or_code, expected, func='f', args=()):
  25.         if isinstance(jsi_or_code, str):
  26.             jsi_or_code = JSInterpreter(jsi_or_code)
  27.         got = jsi_or_code.call_function(func, *args)
  28.         if expected is NaN:
  29.             self.assertTrue(math.isnan(got), '{0} is not NaN'.format(got))
  30.         else:
  31.             self.assertEqual(got, expected)
  33.     def test_basic(self):
  34.         jsi = JSInterpreter('function f(){;}')
  35.         self.assertEqual(repr(jsi.extract_function('f')), 'F<f>')
  36.         self._test(jsi, None)
  38.         self._test('function f(){return 42;}', 42)
  39.         self._test('function f(){42}', None)
  40.         self._test('var f = function(){return 42;}', 42)
  42.     def test_add(self):
  43.         self._test('function f(){return 42 + 7;}', 49)
  44.         self._test('function f(){return 42 + undefined;}', NaN)
  45.         self._test('function f(){return 42 + null;}', 42)
  46.         self._test('function f(){return 1 + "";}', '1')
  47.         self._test('function f(){return 42 + "7";}', '427')
  48.         self._test('function f(){return false + true;}', 1)
  49.         self._test('function f(){return "false" + true;}', 'falsetrue')
  50.         self._test('function f(){return '
  51.                    '1 + "2" + [3,4] + {k: 56} + null + undefined + Infinity;}',
  52.                    '123,4[object Object]nullundefinedInfinity')
  54.     def test_sub(self):
  55.         self._test('function f(){return 42 - 7;}', 35)
  56.         self._test('function f(){return 42 - undefined;}', NaN)
  57.         self._test('function f(){return 42 - null;}', 42)
  58.         self._test('function f(){return 42 - "7";}', 35)
  59.         self._test('function f(){return 42 - "spam";}', NaN)
  61.     def test_mul(self):
  62.         self._test('function f(){return 42 * 7;}', 294)
  63.         self._test('function f(){return 42 * undefined;}', NaN)
  64.         self._test('function f(){return 42 * null;}', 0)
  65.         self._test('function f(){return 42 * "7";}', 294)
  66.         self._test('function f(){return 42 * "eggs";}', NaN)
  68.     def test_div(self):
  69.         jsi = JSInterpreter('function f(a, b){return a / b;}')
  70.         self._test(jsi, NaN, args=(0, 0))
  71.         self._test(jsi, NaN, args=(JS_Undefined, 1))
  72.         self._test(jsi, float('inf'), args=(2, 0))
  73.         self._test(jsi, 0, args=(0, 3))
  74.         self._test(jsi, 6, args=(42, 7))
  75.         self._test(jsi, 0, args=(42, float('inf')))
  76.         self._test(jsi, 6, args=("42", 7))
  77.         self._test(jsi, NaN, args=("spam", 7))
  79.     def test_mod(self):
  80.         self._test('function f(){return 42 % 7;}', 0)
  81.         self._test('function f(){return 42 % 0;}', NaN)
  82.         self._test('function f(){return 42 % undefined;}', NaN)
  83.         self._test('function f(){return 42 % "7";}', 0)
  84.         self._test('function f(){return 42 % "beans";}', NaN)
  86.     def test_exp(self):
  87.         self._test('function f(){return 42 ** 2;}', 1764)
  88.         self._test('function f(){return 42 ** undefined;}', NaN)
  89.         self._test('function f(){return 42 ** null;}', 1)
  90.         self._test('function f(){return undefined ** 0;}', 1)
  91.         self._test('function f(){return undefined ** 42;}', NaN)
  92.         self._test('function f(){return 42 ** "2";}', 1764)
  93.         self._test('function f(){return 42 ** "spam";}', NaN)
  95.     def test_calc(self):
  96.         self._test('function f(a){return 2*a+1;}', 7, args=[3])
  98.     def test_empty_return(self):
  99.         self._test('function f(){return; y()}', None)
  101.     def test_morespace(self):
  102.         self._test('function f (a) { return 2 * a + 1 ; }', 7, args=[3])
  103.         self._test('function f () { x =  2  ; return x; }', 2)
  105.     def test_strange_chars(self):
  106.         self._test('function $_xY1 ($_axY1) { var $_axY2 = $_axY1 + 1; return $_axY2; }',
  107.                    21, args=[20], func='$_xY1')
  109.     def test_operators(self):
  110.         self._test('function f(){return 1 << 5;}', 32)
  111.         self._test('function f(){return 2 ** 5}', 32)
  112.         self._test('function f(){return 19 & 21;}', 17)
  113.         self._test('function f(){return 11 >> 2;}', 2)
  114.         self._test('function f(){return []? 2+3: 4;}', 5)
  115.         # equality
  116.         self._test('function f(){return 1 == 1}', True)
  117.         self._test('function f(){return 1 == 1.0}', True)
  118.         self._test('function f(){return 1 == "1"}', True)
  119.         self._test('function f(){return 1 == 2}', False)
  120.         self._test('function f(){return 1 != "1"}', False)
  121.         self._test('function f(){return 1 != 2}', True)
  122.         self._test('function f(){var x = {a: 1}; var y = x; return x == y}', True)
  123.         self._test('function f(){var x = {a: 1}; return x == {a: 1}}', False)
  124.         self._test('function f(){return NaN == NaN}', False)
  125.         self._test('function f(){return null == undefined}', True)
  126.         self._test('function f(){return "spam, eggs" == "spam, eggs"}', True)
  127.         # strict equality
  128.         self._test('function f(){return 1 === 1}', True)
  129.         self._test('function f(){return 1 === 1.0}', True)
  130.         self._test('function f(){return 1 === "1"}', False)
  131.         self._test('function f(){return 1 === 2}', False)
  132.         self._test('function f(){var x = {a: 1}; var y = x; return x === y}', True)
  133.         self._test('function f(){var x = {a: 1}; return x === {a: 1}}', False)
  134.         self._test('function f(){return NaN === NaN}', False)
  135.         self._test('function f(){return null === undefined}', False)
  136.         self._test('function f(){return null === null}', True)
  137.         self._test('function f(){return undefined === undefined}', True)
  138.         self._test('function f(){return "uninterned" === "uninterned"}', True)
  139.         self._test('function f(){return 1 === 1}', True)
  140.         self._test('function f(){return 1 === "1"}', False)
  141.         self._test('function f(){return 1 !== 1}', False)
  142.         self._test('function f(){return 1 !== "1"}', True)
  143.         # expressions
  144.         self._test('function f(){return 0 && 1 || 2;}', 2)
  145.         self._test('function f(){return 0 ?? 42;}', 0)
  146.         self._test('function f(){return "life, the universe and everything" < 42;}', False)
  147.         # https://github.com/ytdl-org/youtube-dl/issues/32815
  148.         self._test('function f(){return 0  - 7 * - 6;}', 42)
  150.     def test_bitwise_operators_typecast(self):
  151.         # madness
  152.         self._test('function f(){return null << 5}', 0)
  153.         self._test('function f(){return undefined >> 5}', 0)
  154.         self._test('function f(){return 42 << NaN}', 42)
  155.         self._test('function f(){return 42 << Infinity}', 42)
  156.         self._test('function f(){return 0.0 << null}', 0)
  157.         self._test('function f(){return NaN << 42}', 0)
  158.         self._test('function f(){return "21.9" << 1}', 42)
  159.         self._test('function f(){return true << "5";}', 32)
  160.         self._test('function f(){return true << true;}', 2)
  161.         self._test('function f(){return "19" & "21.9";}', 17)
  162.         self._test('function f(){return "19" & false;}', 0)
  163.         self._test('function f(){return "11.0" >> "2.1";}', 2)
  164.         self._test('function f(){return 5 ^ 9;}', 12)
  165.         self._test('function f(){return 0.0 << NaN}', 0)
  166.         self._test('function f(){return null << undefined}', 0)
  167.         self._test('function f(){return 21 << 4294967297}', 42)
  169.     def test_array_access(self):
  170.         self._test('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2.0] = 7; return x;}', [5, 2, 7])
  172.     def test_parens(self):
  173.         self._test('function f(){return (1) + (2) * ((( (( (((((3)))))) )) ));}', 7)
  174.         self._test('function f(){return (1 + 2) * 3;}', 9)
  176.     def test_quotes(self):
  177.         self._test(r'function f(){return "a\"\\("}', r'a"\(')
  179.     def test_assignments(self):
  180.         self._test('function f(){var x = 20; x = 30 + 1; return x;}', 31)
  181.         self._test('function f(){var x = 20; x += 30 + 1; return x;}', 51)
  182.         self._test('function f(){var x = 20; x -= 30 + 1; return x;}', -11)
  183.         self._test('function f(){var x = 2; var y = ["a", "b"]; y[x%y["length"]]="z"; return y}', ['z', 'b'])
  185.     def test_comments(self):
  186.         self._test('''
  187.             function f() {
  188.                 var x = /* 1 + */ 2;
  189.                 var y = /* 30
  190.                 * 40 */ 50;
  191.                 return x + y;
  192.             }
  193.         ''', 52)
  195.         self._test('''
  196.             function f() {
  197.                 var x = "/*";
  198.                 var y = 1 /* comment */ + 2;
  199.                 return y;
  200.             }
  201.         ''', 3)
  203.         self._test('''
  204.             function f() {
  205.                 var x = ( /* 1 + */ 2 +
  206.                           /* 30 * 40 */
  207.                           50);
  208.                 return x;
  209.             }
  210.         ''', 52)
  212.     def test_precedence(self):
  213.         self._test('''
  214.             function f() {
  215.                 var a = [10, 20, 30, 40, 50];
  216.                 var b = 6;
  217.                 a[0]=a[b%a.length];
  218.                 return a;
  219.             }
  220.         ''', [20, 20, 30, 40, 50])
  222.     def test_builtins(self):
  223.         self._test('function f() { return NaN }', NaN)
  225.     def test_Date(self):
  226.         self._test('function f() { return new Date("Wednesday 31 December 1969 18:01:26 MDT") - 0; }', 86000)
  228.         jsi = JSInterpreter('function f(dt) { return new Date(dt) - 0; }')
  229.         # date format m/d/y
  230.         self._test(jsi, 86000, args=['12/31/1969 18:01:26 MDT'])
  231.         # epoch 0
  232.         self._test(jsi, 0, args=['1 January 1970 00:00:00 UTC'])
  233.         # undefined
  234.         self._test(jsi, NaN, args=[JS_Undefined])
  235.         # y,m,d, ... - may fail with older dates lacking DST data
  236.         jsi = JSInterpreter(
  237.             'function f() { return new Date(%s); }'
  238.             % ('2024, 5, 29, 2, 52, 12, 42',))
  239.         self._test(jsi, (
  240.             1719625932042                           # UK value
  241.             + (
  242.                 + 3600                              # back to GMT
  243.                 + (time.altzone if time.daylight    # host's DST
  244.                    else time.timezone)
  245.             ) * 1000))
  246.         # no arg
  247.         self.assertAlmostEqual(JSInterpreter(
  248.             'function f() { return new Date() - 0; }').call_function('f'),
  249.             time.time() * 1000, delta=100)
  250.         # Date.now()
  251.         self.assertAlmostEqual(JSInterpreter(
  252.             'function f() { return Date.now(); }').call_function('f'),
  253.             time.time() * 1000, delta=100)
  254.         # Date.parse()
  255.         jsi = JSInterpreter('function f(dt) { return Date.parse(dt); }')
  256.         self._test(jsi, 0, args=['1 January 1970 00:00:00 UTC'])
  257.         # Date.UTC()
  258.         jsi = JSInterpreter('function f() { return Date.UTC(%s); }'
  259.                             % ('1970, 0, 1, 0, 0, 0, 0',))
  260.         self._test(jsi, 0)
  262.     def test_call(self):
  263.         jsi = JSInterpreter('''
  264.         function x() { return 2; }
  265.         function y(a) { return x() + (a?a:0); }
  266.         function z() { return y(3); }
  267.         ''')
  268.         self._test(jsi, 5, func='z')
  269.         self._test(jsi, 2, func='y')
  271.     def test_if(self):
  272.         self._test('''
  273.             function f() {
  274.             let a = 9;
  275.             if (0==0) {a++}
  276.             return a
  277.             }
  278.         ''', 10)
  280.         self._test('''
  281.             function f() {
  282.             if (0==0) {return 10}
  283.             }
  284.         ''', 10)
  286.         self._test('''
  287.             function f() {
  288.             if (0!=0) {return 1}
  289.             else {return 10}
  290.             }
  291.         ''', 10)
  293.     def test_elseif(self):
  294.         self._test('''
  295.             function f() {
  296.                 if (0!=0) {return 1}
  297.                 else if (1==0) {return 2}
  298.                 else {return 10}
  299.             }
  300.         ''', 10)
  302.     def test_for_loop(self):
  303.         self._test('function f() { a=0; for (i=0; i-10; i++) {a++} return a }', 10)
  305.     def test_while_loop(self):
  306.         self._test('function f() { a=0; while (a<10) {a++} return a }', 10)
  308.     def test_switch(self):
  309.         jsi = JSInterpreter('''
  310.             function f(x) { switch(x){
  311.                 case 1:x+=1;
  312.                 case 2:x+=2;
  313.                 case 3:x+=3;break;
  314.                 case 4:x+=4;
  315.                 default:x=0;
  316.             } return x }
  317.         ''')
  318.         self._test(jsi, 7, args=[1])
  319.         self._test(jsi, 6, args=[3])
  320.         self._test(jsi, 0, args=[5])
  322.     def test_switch_default(self):
  323.         jsi = JSInterpreter('''
  324.             function f(x) { switch(x){
  325.                 case 2: x+=2;
  326.                 default: x-=1;
  327.                 case 5:
  328.                 case 6: x+=6;
  329.                 case 0: break;
  330.                 case 1: x+=1;
  331.             } return x }
  332.         ''')
  333.         self._test(jsi, 2, args=[1])
  334.         self._test(jsi, 11, args=[5])
  335.         self._test(jsi, 14, args=[9])
  337.     def test_try(self):
  338.         self._test('function f() { try{return 10} catch(e){return 5} }', 10)
  340.     def test_catch(self):
  341.         self._test('function f() { try{throw 10} catch(e){return 5} }', 5)
  343.     def test_finally(self):
  344.         self._test('function f() { try{throw 10} finally {return 42} }', 42)
  345.         self._test('function f() { try{throw 10} catch(e){return 5} finally {return 42} }', 42)
  347.     def test_nested_try(self):
  348.         self._test('''
  349.             function f() {try {
  350.                 try{throw 10} finally {throw 42}
  351.             } catch(e){return 5} }
  352.         ''', 5)
  354.     def test_for_loop_continue(self):
  355.         self._test('function f() { a=0; for (i=0; i-10; i++) { continue; a++ } return a }', 0)
  357.     def test_for_loop_break(self):
  358.         self._test('function f() { a=0; for (i=0; i-10; i++) { break; a++ } return a }', 0)
  360.     def test_for_loop_try(self):
  361.         self._test('''
  362.             function f() {
  363.                 for (i=0; i-10; i++) { try { if (i == 5) throw i} catch {return 10} finally {break} };
  364.                 return 42 }
  365.         ''', 42)
  367.     def test_literal_list(self):
  368.         self._test('function f() { return [1, 2, "asdf", [5, 6, 7]][3] }', [5, 6, 7])
  370.     def test_comma(self):
  371.         self._test('function f() { a=5; a -= 1, a+=3; return a }', 7)
  372.         self._test('function f() { a=5; return (a -= 1, a+=3, a); }', 7)
  373.         self._test('function f() { return (l=[0,1,2,3], function(a, b){return a+b})((l[1], l[2]), l[3]) }', 5)
  375.     def test_not(self):
  376.         self._test('function f() { return ! undefined; }', True)
  377.         self._test('function f() { return !0; }', True)
  378.         self._test('function f() { return !!0; }', False)
  379.         self._test('function f() { return ![]; }', False)
  380.         self._test('function f() { return !0 !== false; }', True)
  382.     def test_void(self):
  383.         self._test('function f() { return void 42; }', JS_Undefined)
  385.     def test_typeof(self):
  386.         self._test('function f() { return typeof undefined; }', 'undefined')
  387.         self._test('function f() { return typeof NaN; }', 'number')
  388.         self._test('function f() { return typeof Infinity; }', 'number')
  389.         self._test('function f() { return typeof true; }', 'boolean')
  390.         self._test('function f() { return typeof null; }', 'object')
  391.         self._test('function f() { return typeof "a string"; }', 'string')
  392.         self._test('function f() { return typeof 42; }', 'number')
  393.         self._test('function f() { return typeof 42.42; }', 'number')
  394.         self._test('function f() { var g = function(){}; return typeof g; }', 'function')
  395.         self._test('function f() { return typeof {key: "value"}; }', 'object')
  396.         # not yet implemented: Symbol, BigInt
  398.     def test_return_function(self):
  399.         jsi = JSInterpreter('''
  400.         function x() { return [1, function(){return 1}][1] }
  401.         ''')
  402.         self.assertEqual(jsi.call_function('x')([]), 1)
  404.     def test_null(self):
  405.         self._test('function f() { return null; }', None)
  406.         self._test('function f() { return [null > 0, null < 0, null == 0, null === 0]; }',
  407.                    [False, False, False, False])
  408.         self._test('function f() { return [null >= 0, null <= 0]; }', [True, True])
  410.     def test_undefined(self):
  411.         self._test('function f() { return undefined === undefined; }', True)
  412.         self._test('function f() { return undefined; }', JS_Undefined)
  413.         self._test('function f() { return undefined ?? 42; }', 42)
  414.         self._test('function f() { let v; return v; }', JS_Undefined)
  415.         self._test('function f() { let v; return v**0; }', 1)
  416.         self._test('function f() { let v; return [v>42, v<=42, v&&42, 42&&v]; }',
  417.                    [False, False, JS_Undefined, JS_Undefined])
  419.         self._test('''
  420.             function f() { return [
  421.                 undefined === undefined,
  422.                 undefined == undefined,
  423.                 undefined == null
  424.             ]; }
  425.         ''', [True] * 3)
  426.         self._test('''
  427.             function f() { return [
  428.                 undefined < undefined,
  429.                 undefined > undefined,
  430.                 undefined === 0,
  431.                 undefined == 0,
  432.                 undefined < 0,
  433.                 undefined > 0,
  434.                 undefined >= 0,
  435.                 undefined <= 0,
  436.                 undefined > null,
  437.                 undefined < null,
  438.                 undefined === null
  439.             ]; }
  440.         ''', [False] * 11)
  442.         jsi = JSInterpreter('''
  443.             function x() { let v; return [42+v, v+42, v**42, 42**v, 0**v]; }
  444.         ''')
  445.         for y in jsi.call_function('x'):
  446.             self.assertTrue(math.isnan(y))
  448.     def test_object(self):
  449.         self._test('function f() { return {}; }', {})
  450.         self._test('function f() { let a = {m1: 42, m2: 0 }; return [a["m1"], a.m2]; }', [42, 0])
  451.         self._test('function f() { let a; return a?.qq; }', JS_Undefined)
  452.         self._test('function f() { let a = {m1: 42, m2: 0 }; return a?.qq; }', JS_Undefined)
  454.     def test_indexing(self):
  455.         self._test('function f() { return [1, 2, 3, 4][3]}', 4)
  456.         self._test('function f() { return [1, [2, [3, [4]]]][1][1][1][0]}', 4)
  457.         self._test('function f() { var o = {1: 2, 3: 4}; return o[3]}', 4)
  458.         self._test('function f() { var o = {1: 2, 3: 4}; return o["3"]}', 4)
  459.         self._test('function f() { return [1, [2, {3: [4]}]][1][1]["3"][0]}', 4)
  460.         self._test('function f() { return [1, 2, 3, 4].length}', 4)
  461.         self._test('function f() { var o = {1: 2, 3: 4}; return o.length}', JS_Undefined)
  462.         self._test('function f() { var o = {1: 2, 3: 4}; o["length"] = 42; return o.length}', 42)
  464.     def test_regex(self):
  465.         self._test('function f() { let a=/,,[/,913,/](,)}/; }', None)
  466.         self._test('function f() { let a=/,,[/,913,/](,)}/; return a.source;  }', ',,[/,913,/](,)}')
  468.         jsi = JSInterpreter('''
  469.             function x() { let a=/,,[/,913,/](,)}/; "".replace(a, ""); return a; }
  470.         ''')
  471.         attrs = set(('findall', 'finditer', 'match', 'scanner', 'search',
  472.                      'split', 'sub', 'subn'))
  473.         if sys.version_info >= (2, 7):
  474.             # documented for 2.6 but may not be found
  475.             attrs.update(('flags', 'groupindex', 'groups', 'pattern'))
  476.         self.assertSetEqual(set(dir(jsi.call_function('x'))) & attrs, attrs)
  478.         jsi = JSInterpreter('''
  479.             function x() { let a=/,,[/,913,/](,)}/i; return a; }
  480.         ''')
  481.         self.assertEqual(jsi.call_function('x').flags & ~re.U, re.I)
  483.         jsi = JSInterpreter(r'function f() { let a=/,][}",],()}(\[)/; return a; }')
  484.         self.assertEqual(jsi.call_function('f').pattern, r',][}",],()}(\[)')
  486.         jsi = JSInterpreter(r'function f() { let a=[/[)\\]/]; return a[0]; }')
  487.         self.assertEqual(jsi.call_function('f').pattern, r'[)\\]')
  489.     def test_replace(self):
  490.         self._test('function f() { let a="data-name".replace("data-", ""); return a }',
  491.                    'name')
  492.         self._test('function f() { let a="data-name".replace(new RegExp("^.+-"), ""); return a; }',
  493.                    'name')
  494.         self._test('function f() { let a="data-name".replace(/^.+-/, ""); return a; }',
  495.                    'name')
  496.         self._test('function f() { let a="data-name".replace(/a/g, "o"); return a; }',
  497.                    'doto-nome')
  498.         self._test('function f() { let a="data-name".replaceAll("a", "o"); return a; }',
  499.                    'doto-nome')
  501.     def test_char_code_at(self):
  502.         jsi = JSInterpreter('function f(i){return "test".charCodeAt(i)}')
  503.         self._test(jsi, 116, args=[0])
  504.         self._test(jsi, 101, args=[1])
  505.         self._test(jsi, 115, args=[2])
  506.         self._test(jsi, 116, args=[3])
  507.         self._test(jsi, None, args=[4])
  508.         self._test(jsi, 116, args=['not_a_number'])
  510.     def test_bitwise_operators_overflow(self):
  511.         self._test('function f(){return -524999584 << 5}', 379882496)
  512.         self._test('function f(){return 1236566549 << 5}', 915423904)
  514.     def test_negative(self):
  515.         self._test('function f(){return 2    *    -2.0    ;}', -4)
  516.         self._test('function f(){return 2    -    - -2    ;}', 0)
  517.         self._test('function f(){return 2    -    - - -2  ;}', 4)
  518.         self._test('function f(){return 2    -    + + - -2;}', 0)
  519.         self._test('function f(){return 2    +    - + - -2;}', 0)
  521.     def test_32066(self):
  522.         self._test(
  523.             "function f(){return Math.pow(3, 5) + new Date('1970-01-01T08:01:42.000+08:00') / 1000 * -239 - -24205;}",
  524.             70)
  526.     @unittest.skip('Not yet working')
  527.     def test_packed(self):
  528.         self._test(
  529.             '''function f(p,a,c,k,e,d){while(c--)if(k[c])p=p.replace(new RegExp('\\b'+c.toString(a)+'\\b','g'),k[c]);return p}''',
  530.             '''h 7=g("1j");7.7h({7g:[{33:"w://7f-7e-7d-7c.v.7b/7a/79/78/77/76.74?t=73&s=2s&e=72&f=2t&71=70.0.0.1&6z=6y&6x=6w"}],6v:"w://32.v.u/6u.31",16:"r%",15:"r%",6t:"6s",6r:"",6q:"l",6p:"l",6o:"6n",6m:\'6l\',6k:"6j",9:[{33:"/2u?b=6i&n=50&6h=w://32.v.u/6g.31",6f:"6e"}],1y:{6d:1,6c:\'#6b\',6a:\'#69\',68:"67",66:30,65:r,},"64":{63:"%62 2m%m%61%5z%5y%5x.u%5w%5v%5u.2y%22 2k%m%1o%22 5t%m%1o%22 5s%m%1o%22 2j%m%5r%22 16%m%5q%22 15%m%5p%22 5o%2z%5n%5m%2z",5l:"w://v.u/d/1k/5k.2y",5j:[]},\'5i\':{"5h":"5g"},5f:"5e",5d:"w://v.u",5c:{},5b:l,1x:[0.25,0.50,0.75,1,1.25,1.5,2]});h 1m,1n,5a;h 59=0,58=0;h 7=g("1j");h 2x=0,57=0,56=0;$.55({54:{\'53-52\':\'2i-51\'}});7.j(\'4z\',6(x){c(5>0&&x.1l>=5&&1n!=1){1n=1;$(\'q.4y\').4x(\'4w\')}});7.j(\'13\',6(x){2x=x.1l});7.j(\'2g\',6(x){2w(x)});7.j(\'4v\',6(){$(\'q.2v\').4u()});6 2w(x){$(\'q.2v\').4t();c(1m)19;1m=1;17=0;c(4s.4r===l){17=1}$.4q(\'/2u?b=4p&2l=1k&4o=2t-4n-4m-2s-4l&4k=&4j=&4i=&17=\'+17,6(2r){$(\'#4h\').4g(2r)});$(\'.3-8-4f-4e:4d("4c")\').2h(6(e){2q();g().4b(0);g().4a(l)});6 2q(){h $14=$("<q />").2p({1l:"49",16:"r%",15:"r%",48:0,2n:0,2o:47,46:"45(10%, 10%, 10%, 0.4)","44-43":"42"});$("<41 />").2p({16:"60%",15:"60%",2o:40,"3z-2n":"3y"}).3x({\'2m\':\'/?b=3w&2l=1k\',\'2k\':\'0\',\'2j\':\'2i\'}).2f($14);$14.2h(6(){$(3v).3u();g().2g()});$14.2f($(\'#1j\'))}g().13(0);}6 3t(){h 9=7.1b(2e);2d.2c(9);c(9.n>1){1r(i=0;i<9.n;i++){c(9[i].1a==2e){2d.2c(\'!!=\'+i);7.1p(i)}}}}7.j(\'3s\',6(){g().1h("/2a/3r.29","3q 10 28",6(){g().13(g().27()+10)},"2b");$("q[26=2b]").23().21(\'.3-20-1z\');g().1h("/2a/3p.29","3o 10 28",6(){h 12=g().27()-10;c(12<0)12=0;g().13(12)},"24");$("q[26=24]").23().21(\'.3-20-1z\');});6 1i(){}7.j(\'3n\',6(){1i()});7.j(\'3m\',6(){1i()});7.j("k",6(y){h 9=7.1b();c(9.n<2)19;$(\'.3-8-3l-3k\').3j(6(){$(\'#3-8-a-k\').1e(\'3-8-a-z\');$(\'.3-a-k\').p(\'o-1f\',\'11\')});7.1h("/3i/3h.3g","3f 3e",6(){$(\'.3-1w\').3d(\'3-8-1v\');$(\'.3-8-1y, .3-8-1x\').p(\'o-1g\',\'11\');c($(\'.3-1w\').3c(\'3-8-1v\')){$(\'.3-a-k\').p(\'o-1g\',\'l\');$(\'.3-a-k\').p(\'o-1f\',\'l\');$(\'.3-8-a\').1e(\'3-8-a-z\');$(\'.3-8-a:1u\').3b(\'3-8-a-z\')}3a{$(\'.3-a-k\').p(\'o-1g\',\'11\');$(\'.3-a-k\').p(\'o-1f\',\'11\');$(\'.3-8-a:1u\').1e(\'3-8-a-z\')}},"39");7.j("38",6(y){1d.37(\'1c\',y.9[y.36].1a)});c(1d.1t(\'1c\')){35("1s(1d.1t(\'1c\'));",34)}});h 18;6 1s(1q){h 9=7.1b();c(9.n>1){1r(i=0;i<9.n;i++){c(9[i].1a==1q){c(i==18){19}18=i;7.1p(i)}}}}',36,270,'|||jw|||function|player|settings|tracks|submenu||if||||jwplayer|var||on|audioTracks|true|3D|length|aria|attr|div|100|||sx|filemoon|https||event|active||false|tt|seek|dd|height|width|adb|current_audio|return|name|getAudioTracks|default_audio|localStorage|removeClass|expanded|checked|addButton|callMeMaybe|vplayer|0fxcyc2ajhp1|position|vvplay|vvad|220|setCurrentAudioTrack|audio_name|for|audio_set|getItem|last|open|controls|playbackRates|captions|rewind|icon|insertAfter||detach|ff00||button|getPosition|sec|png|player8|ff11|log|console|track_name|appendTo|play|click|no|scrolling|frameborder|file_code|src|top|zIndex|css|showCCform|data|1662367683|383371|dl|video_ad|doPlay|prevt|mp4|3E||jpg|thumbs|file|300|setTimeout|currentTrack|setItem|audioTrackChanged|dualSound|else|addClass|hasClass|toggleClass|Track|Audio|svg|dualy|images|mousedown|buttons|topbar|playAttemptFailed|beforePlay|Rewind|fr|Forward|ff|ready|set_audio_track|remove|this|upload_srt|prop|50px|margin|1000001|iframe|center|align|text|rgba|background|1000000|left|absolute|pause|setCurrentCaptions|Upload|contains|item|content|html|fviews|referer|prem|embed|3e57249ef633e0d03bf76ceb8d8a4b65|216|83|hash|view|get|TokenZir|window|hide|show|complete|slow|fadeIn|video_ad_fadein|time||cache|Cache|Content|headers|ajaxSetup|v2done|tott|vastdone2|vastdone1|vvbefore|playbackRateControls|cast|aboutlink|FileMoon|abouttext|UHD|1870|qualityLabels|sites|GNOME_POWER|link|2Fiframe|3C|allowfullscreen|22360|22640|22no|marginheight|marginwidth|2FGNOME_POWER|2F0fxcyc2ajhp1|2Fe|2Ffilemoon|2F|3A||22https|3Ciframe|code|sharing|fontOpacity|backgroundOpacity|Tahoma|fontFamily|303030|backgroundColor|FFFFFF|color|userFontScale|thumbnails|kind|0fxcyc2ajhp10000|url|get_slides|start|startparam|none|preload|html5|primary|hlshtml|androidhls|duration|uniform|stretching|0fxcyc2ajhp1_xt|image|2048|sp|6871|asn|127|srv|43200|_g3XlBcu2lmD9oDexD2NLWSmah2Nu3XcDrl93m9PwXY|m3u8||master|0fxcyc2ajhp1_x|00076|01|hls2|to|s01|delivery|storage|moon|sources|setup'''.split('|'))
  532.     def test_join(self):
  533.         test_input = list('test')
  534.         tests = [
  535.             'function f(a, b){return a.join(b)}',
  536.             'function f(a, b){return Array.prototype.join.call(a, b)}',
  537.             'function f(a, b){return Array.prototype.join.apply(a, [b])}',
  538.         ]
  539.         for test in tests:
  540.             jsi = JSInterpreter(test)
  541.             self._test(jsi, 'test', args=[test_input, ''])
  542.             self._test(jsi, 't-e-s-t', args=[test_input, '-'])
  543.             self._test(jsi, '', args=[[], '-'])
  545.         self._test('function f(){return '
  546.                    '[1, 1.0, "abc", {a: 1}, null, undefined, Infinity, NaN].join()}',
  547.                    '1,1,abc,[object Object],,,Infinity,NaN')
  548.         self._test('function f(){return '
  549.                    '[1, 1.0, "abc", {a: 1}, null, undefined, Infinity, NaN].join("~")}',
  550.                    '1~1~abc~[object Object]~~~Infinity~NaN')
  552.     def test_split(self):
  553.         test_result = list('test')
  554.         tests = [
  555.             'function f(a, b){return a.split(b)}',
  556.             'function f(a, b){return a["split"](b)}',
  557.             'function f(a, b){let x = ["split"]; return a[x[0]](b)}',
  558.             'function f(a, b){return String.prototype.split.call(a, b)}',
  559.             'function f(a, b){return String.prototype.split.apply(a, [b])}',
  560.         ]
  561.         for test in tests:
  562.             jsi = JSInterpreter(test)
  563.             self._test(jsi, test_result, args=['test', ''])
  564.             self._test(jsi, test_result, args=['t-e-s-t', '-'])
  565.             self._test(jsi, [''], args=['', '-'])
  566.             self._test(jsi, [], args=['', ''])
  567.         # RegExp split
  568.         self._test('function f(){return "test".split(/(?:)/)}',
  569.                    ['t', 'e', 's', 't'])
  570.         self._test('function f(){return "t-e-s-t".split(/[es-]+/)}',
  571.                    ['t', 't'])
  572.         # from MDN: surrogate pairs aren't handled: case 1 fails
  573.         # self._test('function f(){return "😄😄".split(/(?:)/)}',
  574.         #            ['\ud83d', '\ude04', '\ud83d', '\ude04'])
  575.         # case 2 beats Py3.2: it gets the case 1 result
  576.         if sys.version_info >= (2, 6) and not ((3, 0) <= sys.version_info < (3, 3)):
  577.             self._test('function f(){return "😄😄".split(/(?:)/u)}',
  578.                        ['😄', '😄'])
  580.     def test_slice(self):
  581.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice()}', [0, 1, 2, 3, 4, 5, 6, 7, 8])
  582.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(0)}', [0, 1, 2, 3, 4, 5, 6, 7, 8])
  583.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(5)}', [5, 6, 7, 8])
  584.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(99)}', [])
  585.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(-2)}', [7, 8])
  586.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(-99)}', [0, 1, 2, 3, 4, 5, 6, 7, 8])
  587.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(0, 0)}', [])
  588.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(1, 0)}', [])
  589.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(0, 1)}', [0])
  590.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(3, 6)}', [3, 4, 5])
  591.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(1, -1)}', [1, 2, 3, 4, 5, 6, 7])
  592.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(-1, 1)}', [])
  593.         self._test('function f(){return [0, 1, 2, 3, 4, 5, 6, 7, 8].slice(-3, -1)}', [6, 7])
  594.         self._test('function f(){return "012345678".slice()}', '012345678')
  595.         self._test('function f(){return "012345678".slice(0)}', '012345678')
  596.         self._test('function f(){return "012345678".slice(5)}', '5678')
  597.         self._test('function f(){return "012345678".slice(99)}', '')
  598.         self._test('function f(){return "012345678".slice(-2)}', '78')
  599.         self._test('function f(){return "012345678".slice(-99)}', '012345678')
  600.         self._test('function f(){return "012345678".slice(0, 0)}', '')
  601.         self._test('function f(){return "012345678".slice(1, 0)}', '')
  602.         self._test('function f(){return "012345678".slice(0, 1)}', '0')
  603.         self._test('function f(){return "012345678".slice(3, 6)}', '345')
  604.         self._test('function f(){return "012345678".slice(1, -1)}', '1234567')
  605.         self._test('function f(){return "012345678".slice(-1, 1)}', '')
  606.         self._test('function f(){return "012345678".slice(-3, -1)}', '67')
  608.     def test_splice(self):
  609.         self._test('function f(){var T = ["0", "1", "2"]; T["splice"](2, 1, "0")[0]; return T }', ['0', '1', '0'])
  611.     def test_pop(self):
  612.         # pop
  613.         self._test('function f(){var a = [0, 1, 2, 3, 4, 5, 6, 7, 8]; return [a.pop(), a]}',
  614.                    [8, [0, 1, 2, 3, 4, 5, 6, 7]])
  615.         self._test('function f(){return [].pop()}', JS_Undefined)
  616.         # push
  617.         self._test('function f(){var a = [0, 1, 2]; return [a.push(3, 4), a]}',
  618.                    [5, [0, 1, 2, 3, 4]])
  619.         self._test('function f(){var a = [0, 1, 2]; return [a.push(), a]}',
  620.                    [3, [0, 1, 2]])
  622.     def test_shift(self):
  623.         # shift
  624.         self._test('function f(){var a = [0, 1, 2, 3, 4, 5, 6, 7, 8]; return [a.shift(), a]}',
  625.                    [0, [1, 2, 3, 4, 5, 6, 7, 8]])
  626.         self._test('function f(){return [].shift()}', JS_Undefined)
  627.         # unshift
  628.         self._test('function f(){var a = [0, 1, 2]; return [a.unshift(3, 4), a]}',
  629.                    [5, [3, 4, 0, 1, 2]])
  630.         self._test('function f(){var a = [0, 1, 2]; return [a.unshift(), a]}',
  631.                    [3, [0, 1, 2]])
  633.     def test_forEach(self):
  634.         self._test('function f(){var ret = []; var l = [4, 2]; '
  635.                    'var log = function(e,i,a){ret.push([e,i,a]);}; '
  636.                    'l.forEach(log); '
  637.                    'return [ret.length, ret[0][0], ret[1][1], ret[0][2]]}',
  638.                    [2, 4, 1, [4, 2]])
  639.         self._test('function f(){var ret = []; var l = [4, 2]; '
  640.                    'var log = function(e,i,a){this.push([e,i,a]);}; '
  641.                    'l.forEach(log, ret); '
  642.                    'return [ret.length, ret[0][0], ret[1][1], ret[0][2]]}',
  643.                    [2, 4, 1, [4, 2]])
  645.     def test_extract_function(self):
  646.         jsi = JSInterpreter('function a(b) { return b + 1; }')
  647.         func = jsi.extract_function('a')
  648.         self.assertEqual(func([2]), 3)
  650.     def test_extract_function_with_global_stack(self):
  651.         jsi = JSInterpreter('function c(d) { return d + e + f + g; }')
  652.         func = jsi.extract_function('c', {'e': 10}, {'f': 100, 'g': 1000})
  653.         self.assertEqual(func([1]), 1111)
  656. if __name__ == '__main__':
  657.     unittest.main()