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Commit | Line | Data |
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1 | #!/usr/bin/env python3 | |
2 | ||
3 | # Allow direct execution | |
4 | import os | |
5 | import sys | |
6 | import unittest | |
7 | ||
8 | sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) | |
9 | ||
10 | ||
11 | from yt_dlp.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 | jsi = JSInterpreter('var x5 = function(){return 42;}') | |
23 | self.assertEqual(jsi.call_function('x5'), 42) | |
24 | ||
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): | |
76 | 'Skipping: Not yet fully implemented' | |
77 | return | |
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 | ||
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 | ||
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 | ||
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) | |
114 | ||
115 | def test_for_loop(self): | |
116 | jsi = JSInterpreter(''' | |
117 | function x() { a=0; for (i=0; i-10; i++) {a++} a } | |
118 | ''') | |
119 | self.assertEqual(jsi.call_function('x'), 10) | |
120 | ||
121 | def test_switch(self): | |
122 | jsi = JSInterpreter(''' | |
123 | function x(f) { switch(f){ | |
124 | case 1:f+=1; | |
125 | case 2:f+=2; | |
126 | case 3:f+=3;break; | |
127 | case 4:f+=4; | |
128 | default:f=0; | |
129 | } return f } | |
130 | ''') | |
131 | self.assertEqual(jsi.call_function('x', 1), 7) | |
132 | self.assertEqual(jsi.call_function('x', 3), 6) | |
133 | self.assertEqual(jsi.call_function('x', 5), 0) | |
134 | ||
135 | def test_switch_default(self): | |
136 | jsi = JSInterpreter(''' | |
137 | function x(f) { switch(f){ | |
138 | case 2: f+=2; | |
139 | default: f-=1; | |
140 | case 5: | |
141 | case 6: f+=6; | |
142 | case 0: break; | |
143 | case 1: f+=1; | |
144 | } return f } | |
145 | ''') | |
146 | self.assertEqual(jsi.call_function('x', 1), 2) | |
147 | self.assertEqual(jsi.call_function('x', 5), 11) | |
148 | self.assertEqual(jsi.call_function('x', 9), 14) | |
149 | ||
150 | def test_try(self): | |
151 | jsi = JSInterpreter(''' | |
152 | function x() { try{return 10} catch(e){return 5} } | |
153 | ''') | |
154 | self.assertEqual(jsi.call_function('x'), 10) | |
155 | ||
156 | def test_for_loop_continue(self): | |
157 | jsi = JSInterpreter(''' | |
158 | function x() { a=0; for (i=0; i-10; i++) { continue; a++ } a } | |
159 | ''') | |
160 | self.assertEqual(jsi.call_function('x'), 0) | |
161 | ||
162 | def test_for_loop_break(self): | |
163 | jsi = JSInterpreter(''' | |
164 | function x() { a=0; for (i=0; i-10; i++) { break; a++ } a } | |
165 | ''') | |
166 | self.assertEqual(jsi.call_function('x'), 0) | |
167 | ||
168 | def test_literal_list(self): | |
169 | jsi = JSInterpreter(''' | |
170 | function x() { [1, 2, "asdf", [5, 6, 7]][3] } | |
171 | ''') | |
172 | self.assertEqual(jsi.call_function('x'), [5, 6, 7]) | |
173 | ||
174 | def test_comma(self): | |
175 | jsi = JSInterpreter(''' | |
176 | function x() { a=5; a -= 1, a+=3; return a } | |
177 | ''') | |
178 | self.assertEqual(jsi.call_function('x'), 7) | |
179 | ||
180 | ||
181 | if __name__ == '__main__': | |
182 | unittest.main() |