-#!/usr/bin/env python
-
-from __future__ import unicode_literals
+#!/usr/bin/env python3
# Allow direct execution
import os
import sys
import unittest
+
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
-from youtube_dl.jsinterp import JSInterpreter
+
+from yt_dlp.jsinterp import JSInterpreter
class TestJSInterpreter(unittest.TestCase):
jsi = JSInterpreter('function x3(){return 42;}')
self.assertEqual(jsi.call_function('x3'), 42)
+ jsi = JSInterpreter('function x3(){42}')
+ self.assertEqual(jsi.call_function('x3'), None)
+
jsi = JSInterpreter('var x5 = function(){return 42;}')
self.assertEqual(jsi.call_function('x5'), 42)
jsi = JSInterpreter('function f(){return 1 << 5;}')
self.assertEqual(jsi.call_function('f'), 32)
+ jsi = JSInterpreter('function f(){return 2 ** 5}')
+ self.assertEqual(jsi.call_function('f'), 32)
+
jsi = JSInterpreter('function f(){return 19 & 21;}')
self.assertEqual(jsi.call_function('f'), 17)
jsi = JSInterpreter('function f(){return 11 >> 2;}')
self.assertEqual(jsi.call_function('f'), 2)
+ jsi = JSInterpreter('function f(){return []? 2+3: 4;}')
+ self.assertEqual(jsi.call_function('f'), 5)
+
+ jsi = JSInterpreter('function f(){return 1 == 2}')
+ self.assertEqual(jsi.call_function('f'), False)
+
+ jsi = JSInterpreter('function f(){return 0 && 1 || 2;}')
+ self.assertEqual(jsi.call_function('f'), 2)
+
def test_array_access(self):
- jsi = JSInterpreter('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2] = 7; return x;}')
+ jsi = JSInterpreter('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2.0] = 7; return x;}')
self.assertEqual(jsi.call_function('f'), [5, 2, 7])
def test_parens(self):
jsi = JSInterpreter('function f(){return (1 + 2) * 3;}')
self.assertEqual(jsi.call_function('f'), 9)
+ def test_quotes(self):
+ jsi = JSInterpreter(R'function f(){return "a\"\\("}')
+ self.assertEqual(jsi.call_function('f'), R'a"\(')
+
def test_assignments(self):
jsi = JSInterpreter('function f(){var x = 20; x = 30 + 1; return x;}')
self.assertEqual(jsi.call_function('f'), 31)
}''')
self.assertEqual(jsi.call_function('x'), [20, 20, 30, 40, 50])
+ def test_builtins(self):
+ jsi = JSInterpreter('''
+ function x() { return new Date('Wednesday 31 December 1969 18:01:26 MDT') - 0; }
+ ''')
+ self.assertEqual(jsi.call_function('x'), 86000)
+ jsi = JSInterpreter('''
+ function x(dt) { return new Date(dt) - 0; }
+ ''')
+ self.assertEqual(jsi.call_function('x', 'Wednesday 31 December 1969 18:01:26 MDT'), 86000)
+
def test_call(self):
jsi = JSInterpreter('''
function x() { return 2; }
- function y(a) { return x() + a; }
+ function y(a) { return x() + (a?a:0); }
function z() { return y(3); }
''')
self.assertEqual(jsi.call_function('z'), 5)
+ self.assertEqual(jsi.call_function('y'), 2)
+
+ def test_for_loop(self):
+ jsi = JSInterpreter('''
+ function x() { a=0; for (i=0; i-10; i++) {a++} return a }
+ ''')
+ self.assertEqual(jsi.call_function('x'), 10)
+
+ def test_switch(self):
+ jsi = JSInterpreter('''
+ function x(f) { switch(f){
+ case 1:f+=1;
+ case 2:f+=2;
+ case 3:f+=3;break;
+ case 4:f+=4;
+ default:f=0;
+ } return f }
+ ''')
+ self.assertEqual(jsi.call_function('x', 1), 7)
+ self.assertEqual(jsi.call_function('x', 3), 6)
+ self.assertEqual(jsi.call_function('x', 5), 0)
+
+ def test_switch_default(self):
+ jsi = JSInterpreter('''
+ function x(f) { switch(f){
+ case 2: f+=2;
+ default: f-=1;
+ case 5:
+ case 6: f+=6;
+ case 0: break;
+ case 1: f+=1;
+ } return f }
+ ''')
+ self.assertEqual(jsi.call_function('x', 1), 2)
+ self.assertEqual(jsi.call_function('x', 5), 11)
+ self.assertEqual(jsi.call_function('x', 9), 14)
+
+ def test_try(self):
+ jsi = JSInterpreter('''
+ function x() { try{return 10} catch(e){return 5} }
+ ''')
+ self.assertEqual(jsi.call_function('x'), 10)
+
+ def test_for_loop_continue(self):
+ jsi = JSInterpreter('''
+ function x() { a=0; for (i=0; i-10; i++) { continue; a++ } return a }
+ ''')
+ self.assertEqual(jsi.call_function('x'), 0)
+
+ def test_for_loop_break(self):
+ jsi = JSInterpreter('''
+ function x() { a=0; for (i=0; i-10; i++) { break; a++ } return a }
+ ''')
+ self.assertEqual(jsi.call_function('x'), 0)
+
+ def test_literal_list(self):
+ jsi = JSInterpreter('''
+ function x() { return [1, 2, "asdf", [5, 6, 7]][3] }
+ ''')
+ self.assertEqual(jsi.call_function('x'), [5, 6, 7])
+
+ def test_comma(self):
+ jsi = JSInterpreter('''
+ function x() { a=5; a -= 1, a+=3; return a }
+ ''')
+ self.assertEqual(jsi.call_function('x'), 7)
+
+ jsi = JSInterpreter('''
+ function x() { a=5; return (a -= 1, a+=3, a); }
+ ''')
+ self.assertEqual(jsi.call_function('x'), 7)
+
+ jsi = JSInterpreter('''
+ function x() { return (l=[0,1,2,3], function(a, b){return a+b})((l[1], l[2]), l[3]) }
+ ''')
+ self.assertEqual(jsi.call_function('x'), 5)
+
+ def test_void(self):
+ jsi = JSInterpreter('''
+ function x() { return void 42; }
+ ''')
+ self.assertEqual(jsi.call_function('x'), None)
+
+ def test_return_function(self):
+ jsi = JSInterpreter('''
+ function x() { return [1, function(){return 1}][1] }
+ ''')
+ self.assertEqual(jsi.call_function('x')([]), 1)
if __name__ == '__main__':