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106 lines
3.4 KiB
106 lines
3.4 KiB
#!/usr/bin/env python |
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from __future__ import unicode_literals |
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# Allow direct execution |
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import os |
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import sys |
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import unittest |
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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) |
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from youtube_dl.jsinterp import JSInterpreter |
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class TestJSInterpreter(unittest.TestCase): |
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def test_basic(self): |
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jsi = JSInterpreter('function x(){;}') |
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self.assertEqual(jsi.call_function('x'), None) |
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jsi = JSInterpreter('function x3(){return 42;}') |
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self.assertEqual(jsi.call_function('x3'), 42) |
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def test_calc(self): |
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jsi = JSInterpreter('function x4(a){return 2*a+1;}') |
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self.assertEqual(jsi.call_function('x4', 3), 7) |
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def test_empty_return(self): |
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jsi = JSInterpreter('function f(){return; y()}') |
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self.assertEqual(jsi.call_function('f'), None) |
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def test_morespace(self): |
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jsi = JSInterpreter('function x (a) { return 2 * a + 1 ; }') |
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self.assertEqual(jsi.call_function('x', 3), 7) |
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jsi = JSInterpreter('function f () { x = 2 ; return x; }') |
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self.assertEqual(jsi.call_function('f'), 2) |
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def test_strange_chars(self): |
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jsi = JSInterpreter('function $_xY1 ($_axY1) { var $_axY2 = $_axY1 + 1; return $_axY2; }') |
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self.assertEqual(jsi.call_function('$_xY1', 20), 21) |
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def test_operators(self): |
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jsi = JSInterpreter('function f(){return 1 << 5;}') |
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self.assertEqual(jsi.call_function('f'), 32) |
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jsi = JSInterpreter('function f(){return 19 & 21;}') |
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self.assertEqual(jsi.call_function('f'), 17) |
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jsi = JSInterpreter('function f(){return 11 >> 2;}') |
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self.assertEqual(jsi.call_function('f'), 2) |
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def test_array_access(self): |
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jsi = JSInterpreter('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2] = 7; return x;}') |
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self.assertEqual(jsi.call_function('f'), [5, 2, 7]) |
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def test_parens(self): |
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jsi = JSInterpreter('function f(){return (1) + (2) * ((( (( (((((3)))))) )) ));}') |
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self.assertEqual(jsi.call_function('f'), 7) |
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jsi = JSInterpreter('function f(){return (1 + 2) * 3;}') |
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self.assertEqual(jsi.call_function('f'), 9) |
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def test_assignments(self): |
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jsi = JSInterpreter('function f(){var x = 20; x = 30 + 1; return x;}') |
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self.assertEqual(jsi.call_function('f'), 31) |
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jsi = JSInterpreter('function f(){var x = 20; x += 30 + 1; return x;}') |
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self.assertEqual(jsi.call_function('f'), 51) |
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jsi = JSInterpreter('function f(){var x = 20; x -= 30 + 1; return x;}') |
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self.assertEqual(jsi.call_function('f'), -11) |
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def test_comments(self): |
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'Skipping: Not yet fully implemented' |
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return |
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jsi = JSInterpreter(''' |
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function x() { |
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var x = /* 1 + */ 2; |
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var y = /* 30 |
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* 40 */ 50; |
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return x + y; |
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} |
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''') |
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self.assertEqual(jsi.call_function('x'), 52) |
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jsi = JSInterpreter(''' |
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function f() { |
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var x = "/*"; |
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var y = 1 /* comment */ + 2; |
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return y; |
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} |
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''') |
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self.assertEqual(jsi.call_function('f'), 3) |
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def test_precedence(self): |
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jsi = JSInterpreter(''' |
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function x() { |
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var a = [10, 20, 30, 40, 50]; |
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var b = 6; |
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a[0]=a[b%a.length]; |
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return a; |
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}''') |
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self.assertEqual(jsi.call_function('x'), [20, 20, 30, 40, 50]) |
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if __name__ == '__main__': |
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unittest.main()
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