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Commit | Line | Data |
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9e3f1991 PH |
1 | #!/usr/bin/env python |
2 | ||
3 | from __future__ import unicode_literals | |
4 | ||
5 | # Allow direct execution | |
6 | import os | |
7 | import sys | |
8 | import unittest | |
9 | sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) | |
10 | ||
11 | from youtube_dl.jsinterp import JSInterpreter | |
12 | ||
13 | ||
14 | class TestJSInterpreter(unittest.TestCase): | |
15 | def test_basic(self): | |
16 | jsi = JSInterpreter('function x(){;}') | |
17 | self.assertEqual(jsi.call_function('x'), None) | |
18 | ||
19 | jsi = JSInterpreter('function x3(){return 42;}') | |
20 | self.assertEqual(jsi.call_function('x3'), 42) | |
21 | ||
ff29bf81 YCH |
22 | jsi = JSInterpreter('var x5 = function(){return 42;}') |
23 | self.assertEqual(jsi.call_function('x5'), 42) | |
24 | ||
9e3f1991 PH |
25 | def test_calc(self): |
26 | jsi = JSInterpreter('function x4(a){return 2*a+1;}') | |
27 | self.assertEqual(jsi.call_function('x4', 3), 7) | |
28 | ||
29 | def test_empty_return(self): | |
30 | jsi = JSInterpreter('function f(){return; y()}') | |
31 | self.assertEqual(jsi.call_function('f'), None) | |
32 | ||
33 | def test_morespace(self): | |
34 | jsi = JSInterpreter('function x (a) { return 2 * a + 1 ; }') | |
35 | self.assertEqual(jsi.call_function('x', 3), 7) | |
36 | ||
37 | jsi = JSInterpreter('function f () { x = 2 ; return x; }') | |
38 | self.assertEqual(jsi.call_function('f'), 2) | |
39 | ||
40 | def test_strange_chars(self): | |
41 | jsi = JSInterpreter('function $_xY1 ($_axY1) { var $_axY2 = $_axY1 + 1; return $_axY2; }') | |
42 | self.assertEqual(jsi.call_function('$_xY1', 20), 21) | |
43 | ||
44 | def test_operators(self): | |
45 | jsi = JSInterpreter('function f(){return 1 << 5;}') | |
46 | self.assertEqual(jsi.call_function('f'), 32) | |
47 | ||
48 | jsi = JSInterpreter('function f(){return 19 & 21;}') | |
49 | self.assertEqual(jsi.call_function('f'), 17) | |
50 | ||
51 | jsi = JSInterpreter('function f(){return 11 >> 2;}') | |
52 | self.assertEqual(jsi.call_function('f'), 2) | |
53 | ||
54 | def test_array_access(self): | |
55 | jsi = JSInterpreter('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2] = 7; return x;}') | |
56 | self.assertEqual(jsi.call_function('f'), [5, 2, 7]) | |
57 | ||
58 | def test_parens(self): | |
59 | jsi = JSInterpreter('function f(){return (1) + (2) * ((( (( (((((3)))))) )) ));}') | |
60 | self.assertEqual(jsi.call_function('f'), 7) | |
61 | ||
62 | jsi = JSInterpreter('function f(){return (1 + 2) * 3;}') | |
63 | self.assertEqual(jsi.call_function('f'), 9) | |
64 | ||
65 | def test_assignments(self): | |
66 | jsi = JSInterpreter('function f(){var x = 20; x = 30 + 1; return x;}') | |
67 | self.assertEqual(jsi.call_function('f'), 31) | |
68 | ||
69 | jsi = JSInterpreter('function f(){var x = 20; x += 30 + 1; return x;}') | |
70 | self.assertEqual(jsi.call_function('f'), 51) | |
71 | ||
72 | jsi = JSInterpreter('function f(){var x = 20; x -= 30 + 1; return x;}') | |
73 | self.assertEqual(jsi.call_function('f'), -11) | |
74 | ||
75 | def test_comments(self): | |
3eff81fb PH |
76 | 'Skipping: Not yet fully implemented' |
77 | return | |
9e3f1991 PH |
78 | jsi = JSInterpreter(''' |
79 | function x() { | |
80 | var x = /* 1 + */ 2; | |
81 | var y = /* 30 | |
82 | * 40 */ 50; | |
83 | return x + y; | |
84 | } | |
85 | ''') | |
86 | self.assertEqual(jsi.call_function('x'), 52) | |
87 | ||
3eff81fb PH |
88 | jsi = JSInterpreter(''' |
89 | function f() { | |
90 | var x = "/*"; | |
91 | var y = 1 /* comment */ + 2; | |
92 | return y; | |
93 | } | |
94 | ''') | |
95 | self.assertEqual(jsi.call_function('f'), 3) | |
96 | ||
9e3f1991 PH |
97 | def test_precedence(self): |
98 | jsi = JSInterpreter(''' | |
99 | function x() { | |
100 | var a = [10, 20, 30, 40, 50]; | |
101 | var b = 6; | |
102 | a[0]=a[b%a.length]; | |
103 | return a; | |
104 | }''') | |
105 | self.assertEqual(jsi.call_function('x'), [20, 20, 30, 40, 50]) | |
106 | ||
189935f1 KM |
107 | def test_call(self): |
108 | jsi = JSInterpreter(''' | |
109 | function x() { return 2; } | |
110 | function y(a) { return x() + a; } | |
111 | function z() { return y(3); } | |
112 | ''') | |
113 | self.assertEqual(jsi.call_function('z'), 5) | |
9e3f1991 | 114 | |
582be358 | 115 | |
9e3f1991 PH |
116 | if __name__ == '__main__': |
117 | unittest.main() |