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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 | ||
22 | def test_calc(self): | |
23 | jsi = JSInterpreter('function x4(a){return 2*a+1;}') | |
24 | self.assertEqual(jsi.call_function('x4', 3), 7) | |
25 | ||
26 | def test_empty_return(self): | |
27 | jsi = JSInterpreter('function f(){return; y()}') | |
28 | self.assertEqual(jsi.call_function('f'), None) | |
29 | ||
30 | def test_morespace(self): | |
31 | jsi = JSInterpreter('function x (a) { return 2 * a + 1 ; }') | |
32 | self.assertEqual(jsi.call_function('x', 3), 7) | |
33 | ||
34 | jsi = JSInterpreter('function f () { x = 2 ; return x; }') | |
35 | self.assertEqual(jsi.call_function('f'), 2) | |
36 | ||
37 | def test_strange_chars(self): | |
38 | jsi = JSInterpreter('function $_xY1 ($_axY1) { var $_axY2 = $_axY1 + 1; return $_axY2; }') | |
39 | self.assertEqual(jsi.call_function('$_xY1', 20), 21) | |
40 | ||
41 | def test_operators(self): | |
42 | jsi = JSInterpreter('function f(){return 1 << 5;}') | |
43 | self.assertEqual(jsi.call_function('f'), 32) | |
44 | ||
45 | jsi = JSInterpreter('function f(){return 19 & 21;}') | |
46 | self.assertEqual(jsi.call_function('f'), 17) | |
47 | ||
48 | jsi = JSInterpreter('function f(){return 11 >> 2;}') | |
49 | self.assertEqual(jsi.call_function('f'), 2) | |
50 | ||
51 | def test_array_access(self): | |
52 | jsi = JSInterpreter('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2] = 7; return x;}') | |
53 | self.assertEqual(jsi.call_function('f'), [5, 2, 7]) | |
54 | ||
55 | def test_parens(self): | |
56 | jsi = JSInterpreter('function f(){return (1) + (2) * ((( (( (((((3)))))) )) ));}') | |
57 | self.assertEqual(jsi.call_function('f'), 7) | |
58 | ||
59 | jsi = JSInterpreter('function f(){return (1 + 2) * 3;}') | |
60 | self.assertEqual(jsi.call_function('f'), 9) | |
61 | ||
62 | def test_assignments(self): | |
63 | jsi = JSInterpreter('function f(){var x = 20; x = 30 + 1; return x;}') | |
64 | self.assertEqual(jsi.call_function('f'), 31) | |
65 | ||
66 | jsi = JSInterpreter('function f(){var x = 20; x += 30 + 1; return x;}') | |
67 | self.assertEqual(jsi.call_function('f'), 51) | |
68 | ||
69 | jsi = JSInterpreter('function f(){var x = 20; x -= 30 + 1; return x;}') | |
70 | self.assertEqual(jsi.call_function('f'), -11) | |
71 | ||
72 | def test_comments(self): | |
3eff81fb PH |
73 | 'Skipping: Not yet fully implemented' |
74 | return | |
9e3f1991 PH |
75 | jsi = JSInterpreter(''' |
76 | function x() { | |
77 | var x = /* 1 + */ 2; | |
78 | var y = /* 30 | |
79 | * 40 */ 50; | |
80 | return x + y; | |
81 | } | |
82 | ''') | |
83 | self.assertEqual(jsi.call_function('x'), 52) | |
84 | ||
3eff81fb PH |
85 | jsi = JSInterpreter(''' |
86 | function f() { | |
87 | var x = "/*"; | |
88 | var y = 1 /* comment */ + 2; | |
89 | return y; | |
90 | } | |
91 | ''') | |
92 | self.assertEqual(jsi.call_function('f'), 3) | |
93 | ||
9e3f1991 PH |
94 | def test_precedence(self): |
95 | jsi = JSInterpreter(''' | |
96 | function x() { | |
97 | var a = [10, 20, 30, 40, 50]; | |
98 | var b = 6; | |
99 | a[0]=a[b%a.length]; | |
100 | return a; | |
101 | }''') | |
102 | self.assertEqual(jsi.call_function('x'), [20, 20, 30, 40, 50]) | |
103 | ||
104 | ||
105 | if __name__ == '__main__': | |
106 | unittest.main() |