diff options
Diffstat (limited to 'test/test_jsinterp.py')
| -rw-r--r-- | test/test_jsinterp.py | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/test/test_jsinterp.py b/test/test_jsinterp.py new file mode 100644 index 0000000..86928a6 --- /dev/null +++ b/test/test_jsinterp.py @@ -0,0 +1,380 @@ +#!/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__)))) + +import math + +from yt_dlp.jsinterp import JS_Undefined, JSInterpreter + + +class NaN: + pass + + +class TestJSInterpreter(unittest.TestCase): + def _test(self, jsi_or_code, expected, func='f', args=()): + if isinstance(jsi_or_code, str): + jsi_or_code = JSInterpreter(jsi_or_code) + got = jsi_or_code.call_function(func, *args) + if expected is NaN: + self.assertTrue(math.isnan(got), f'{got} is not NaN') + else: + self.assertEqual(got, expected) + + def test_basic(self): + jsi = JSInterpreter('function f(){;}') + self.assertEqual(repr(jsi.extract_function('f')), 'F<f>') + self._test(jsi, None) + + self._test('function f(){return 42;}', 42) + self._test('function f(){42}', None) + self._test('var f = function(){return 42;}', 42) + + def test_add(self): + self._test('function f(){return 42 + 7;}', 49) + self._test('function f(){return 42 + undefined;}', NaN) + self._test('function f(){return 42 + null;}', 42) + + def test_sub(self): + self._test('function f(){return 42 - 7;}', 35) + self._test('function f(){return 42 - undefined;}', NaN) + self._test('function f(){return 42 - null;}', 42) + + def test_mul(self): + self._test('function f(){return 42 * 7;}', 294) + self._test('function f(){return 42 * undefined;}', NaN) + self._test('function f(){return 42 * null;}', 0) + + def test_div(self): + jsi = JSInterpreter('function f(a, b){return a / b;}') + self._test(jsi, NaN, args=(0, 0)) + self._test(jsi, NaN, args=(JS_Undefined, 1)) + self._test(jsi, float('inf'), args=(2, 0)) + self._test(jsi, 0, args=(0, 3)) + + def test_mod(self): + self._test('function f(){return 42 % 7;}', 0) + self._test('function f(){return 42 % 0;}', NaN) + self._test('function f(){return 42 % undefined;}', NaN) + + def test_exp(self): + self._test('function f(){return 42 ** 2;}', 1764) + self._test('function f(){return 42 ** undefined;}', NaN) + self._test('function f(){return 42 ** null;}', 1) + self._test('function f(){return undefined ** 42;}', NaN) + + def test_calc(self): + self._test('function f(a){return 2*a+1;}', 7, args=[3]) + + def test_empty_return(self): + self._test('function f(){return; y()}', None) + + def test_morespace(self): + self._test('function f (a) { return 2 * a + 1 ; }', 7, args=[3]) + self._test('function f () { x = 2 ; return x; }', 2) + + def test_strange_chars(self): + self._test('function $_xY1 ($_axY1) { var $_axY2 = $_axY1 + 1; return $_axY2; }', + 21, args=[20], func='$_xY1') + + def test_operators(self): + self._test('function f(){return 1 << 5;}', 32) + self._test('function f(){return 2 ** 5}', 32) + self._test('function f(){return 19 & 21;}', 17) + self._test('function f(){return 11 >> 2;}', 2) + self._test('function f(){return []? 2+3: 4;}', 5) + self._test('function f(){return 1 == 2}', False) + self._test('function f(){return 0 && 1 || 2;}', 2) + self._test('function f(){return 0 ?? 42;}', 0) + self._test('function f(){return "life, the universe and everything" < 42;}', False) + + def test_array_access(self): + self._test('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2.0] = 7; return x;}', [5, 2, 7]) + + def test_parens(self): + self._test('function f(){return (1) + (2) * ((( (( (((((3)))))) )) ));}', 7) + self._test('function f(){return (1 + 2) * 3;}', 9) + + def test_quotes(self): + self._test(R'function f(){return "a\"\\("}', R'a"\(') + + def test_assignments(self): + self._test('function f(){var x = 20; x = 30 + 1; return x;}', 31) + self._test('function f(){var x = 20; x += 30 + 1; return x;}', 51) + self._test('function f(){var x = 20; x -= 30 + 1; return x;}', -11) + + @unittest.skip('Not implemented') + def test_comments(self): + self._test(''' + function f() { + var x = /* 1 + */ 2; + var y = /* 30 + * 40 */ 50; + return x + y; + } + ''', 52) + + self._test(''' + function f() { + var x = "/*"; + var y = 1 /* comment */ + 2; + return y; + } + ''', 3) + + def test_precedence(self): + self._test(''' + function f() { + var a = [10, 20, 30, 40, 50]; + var b = 6; + a[0]=a[b%a.length]; + return a; + } + ''', [20, 20, 30, 40, 50]) + + def test_builtins(self): + self._test('function f() { return NaN }', NaN) + + def test_date(self): + self._test('function f() { return new Date("Wednesday 31 December 1969 18:01:26 MDT") - 0; }', 86000) + + jsi = JSInterpreter('function f(dt) { return new Date(dt) - 0; }') + self._test(jsi, 86000, args=['Wednesday 31 December 1969 18:01:26 MDT']) + self._test(jsi, 86000, args=['12/31/1969 18:01:26 MDT']) # m/d/y + self._test(jsi, 0, args=['1 January 1970 00:00:00 UTC']) + + def test_call(self): + jsi = JSInterpreter(''' + function x() { return 2; } + function y(a) { return x() + (a?a:0); } + function z() { return y(3); } + ''') + self._test(jsi, 5, func='z') + self._test(jsi, 2, func='y') + + def test_if(self): + self._test(''' + function f() { + let a = 9; + if (0==0) {a++} + return a + } + ''', 10) + + self._test(''' + function f() { + if (0==0) {return 10} + } + ''', 10) + + self._test(''' + function f() { + if (0!=0) {return 1} + else {return 10} + } + ''', 10) + + """ # Unsupported + self._test(''' + function f() { + if (0!=0) {return 1} + else if (1==0) {return 2} + else {return 10} + } + ''', 10) + """ + + def test_for_loop(self): + self._test('function f() { a=0; for (i=0; i-10; i++) {a++} return a }', 10) + + def test_switch(self): + jsi = JSInterpreter(''' + function f(x) { switch(x){ + case 1:x+=1; + case 2:x+=2; + case 3:x+=3;break; + case 4:x+=4; + default:x=0; + } return x } + ''') + self._test(jsi, 7, args=[1]) + self._test(jsi, 6, args=[3]) + self._test(jsi, 0, args=[5]) + + def test_switch_default(self): + jsi = JSInterpreter(''' + function f(x) { switch(x){ + case 2: x+=2; + default: x-=1; + case 5: + case 6: x+=6; + case 0: break; + case 1: x+=1; + } return x } + ''') + self._test(jsi, 2, args=[1]) + self._test(jsi, 11, args=[5]) + self._test(jsi, 14, args=[9]) + + def test_try(self): + self._test('function f() { try{return 10} catch(e){return 5} }', 10) + + def test_catch(self): + self._test('function f() { try{throw 10} catch(e){return 5} }', 5) + + def test_finally(self): + self._test('function f() { try{throw 10} finally {return 42} }', 42) + self._test('function f() { try{throw 10} catch(e){return 5} finally {return 42} }', 42) + + def test_nested_try(self): + self._test(''' + function f() {try { + try{throw 10} finally {throw 42} + } catch(e){return 5} } + ''', 5) + + def test_for_loop_continue(self): + self._test('function f() { a=0; for (i=0; i-10; i++) { continue; a++ } return a }', 0) + + def test_for_loop_break(self): + self._test('function f() { a=0; for (i=0; i-10; i++) { break; a++ } return a }', 0) + + def test_for_loop_try(self): + self._test(''' + function f() { + for (i=0; i-10; i++) { try { if (i == 5) throw i} catch {return 10} finally {break} }; + return 42 } + ''', 42) + + def test_literal_list(self): + self._test('function f() { return [1, 2, "asdf", [5, 6, 7]][3] }', [5, 6, 7]) + + def test_comma(self): + self._test('function f() { a=5; a -= 1, a+=3; return a }', 7) + self._test('function f() { a=5; return (a -= 1, a+=3, a); }', 7) + self._test('function f() { return (l=[0,1,2,3], function(a, b){return a+b})((l[1], l[2]), l[3]) }', 5) + + def test_void(self): + self._test('function f() { return void 42; }', None) + + def test_return_function(self): + jsi = JSInterpreter(''' + function f() { return [1, function(){return 1}][1] } + ''') + self.assertEqual(jsi.call_function('f')([]), 1) + + def test_null(self): + self._test('function f() { return null; }', None) + self._test('function f() { return [null > 0, null < 0, null == 0, null === 0]; }', + [False, False, False, False]) + self._test('function f() { return [null >= 0, null <= 0]; }', [True, True]) + + def test_undefined(self): + self._test('function f() { return undefined === undefined; }', True) + self._test('function f() { return undefined; }', JS_Undefined) + self._test('function f() {return undefined ?? 42; }', 42) + self._test('function f() { let v; return v; }', JS_Undefined) + self._test('function f() { let v; return v**0; }', 1) + self._test('function f() { let v; return [v>42, v<=42, v&&42, 42&&v]; }', + [False, False, JS_Undefined, JS_Undefined]) + + self._test(''' + function f() { return [ + undefined === undefined, + undefined == undefined, + undefined == null, + undefined < undefined, + undefined > undefined, + undefined === 0, + undefined == 0, + undefined < 0, + undefined > 0, + undefined >= 0, + undefined <= 0, + undefined > null, + undefined < null, + undefined === null + ]; } + ''', list(map(bool, (1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)))) + + jsi = JSInterpreter(''' + function f() { let v; return [42+v, v+42, v**42, 42**v, 0**v]; } + ''') + for y in jsi.call_function('f'): + self.assertTrue(math.isnan(y)) + + def test_object(self): + self._test('function f() { return {}; }', {}) + self._test('function f() { let a = {m1: 42, m2: 0 }; return [a["m1"], a.m2]; }', [42, 0]) + self._test('function f() { let a; return a?.qq; }', JS_Undefined) + self._test('function f() { let a = {m1: 42, m2: 0 }; return a?.qq; }', JS_Undefined) + + def test_regex(self): + self._test('function f() { let a=/,,[/,913,/](,)}/; }', None) + self._test('function f() { let a=/,,[/,913,/](,)}/; return a; }', R'/,,[/,913,/](,)}/0') + + R''' # We are not compiling regex + jsi = JSInterpreter('function f() { let a=/,,[/,913,/](,)}/; return a; }') + self.assertIsInstance(jsi.call_function('f'), re.Pattern) + + jsi = JSInterpreter('function f() { let a=/,,[/,913,/](,)}/i; return a; }') + self.assertEqual(jsi.call_function('f').flags & re.I, re.I) + + jsi = JSInterpreter(R'function f() { let a=/,][}",],()}(\[)/; return a; }') + self.assertEqual(jsi.call_function('f').pattern, r',][}",],()}(\[)') + + jsi = JSInterpreter(R'function f() { let a=[/[)\\]/]; return a[0]; }') + self.assertEqual(jsi.call_function('f').pattern, r'[)\\]') + ''' + + @unittest.skip('Not implemented') + def test_replace(self): + self._test('function f() { let a="data-name".replace("data-", ""); return a }', + 'name') + self._test('function f() { let a="data-name".replace(new RegExp("^.+-"), ""); return a; }', + 'name') + self._test('function f() { let a="data-name".replace(/^.+-/, ""); return a; }', + 'name') + self._test('function f() { let a="data-name".replace(/a/g, "o"); return a; }', + 'doto-nome') + self._test('function f() { let a="data-name".replaceAll("a", "o"); return a; }', + 'doto-nome') + + def test_char_code_at(self): + jsi = JSInterpreter('function f(i){return "test".charCodeAt(i)}') + self._test(jsi, 116, args=[0]) + self._test(jsi, 101, args=[1]) + self._test(jsi, 115, args=[2]) + self._test(jsi, 116, args=[3]) + self._test(jsi, None, args=[4]) + self._test(jsi, 116, args=['not_a_number']) + + def test_bitwise_operators_overflow(self): + self._test('function f(){return -524999584 << 5}', 379882496) + self._test('function f(){return 1236566549 << 5}', 915423904) + + def test_bitwise_operators_typecast(self): + self._test('function f(){return null << 5}', 0) + self._test('function f(){return undefined >> 5}', 0) + self._test('function f(){return 42 << NaN}', 42) + + def test_negative(self): + self._test('function f(){return 2 * -2.0 ;}', -4) + self._test('function f(){return 2 - - -2 ;}', 0) + self._test('function f(){return 2 - - - -2 ;}', 4) + self._test('function f(){return 2 - + + - -2;}', 0) + self._test('function f(){return 2 + - + - -2;}', 0) + + @unittest.skip('Not implemented') + def test_packed(self): + jsi = JSInterpreter('''function f(p,a,c,k,e,d){while(c--)if(k[c])p=p.replace(new RegExp('\\b'+c.toString(a)+'\\b','g'),k[c]);return p}''') + self.assertEqual(jsi.call_function('f', '''h 7=g("1j");7.7h({7g:[{33:"w://7f-7e-7d-7c.v.7b/7a/79/78/77/76.74?t=73&s=2s&e=72&f=2t&71=70.0.0.1&6z=6y&6x=6w"}],6v:"w://32.v.u/6u.31",16:"r%",15:"r%",6t:"6s",6r:"",6q:"l",6p:"l",6o:"6n",6m:\'6l\',6k:"6j",9:[{33:"/2u?b=6i&n=50&6h=w://32.v.u/6g.31",6f:"6e"}],1y:{6d:1,6c:\'#6b\',6a:\'#69\',68:"67",66:30,65:r,},"64":{63:"%62 2m%m%61%5z%5y%5x.u%5w%5v%5u.2y%22 2k%m%1o%22 5t%m%1o%22 5s%m%1o%22 2j%m%5r%22 16%m%5q%22 15%m%5p%22 5o%2z%5n%5m%2z",5l:"w://v.u/d/1k/5k.2y",5j:[]},\'5i\':{"5h":"5g"},5f:"5e",5d:"w://v.u",5c:{},5b:l,1x:[0.25,0.50,0.75,1,1.25,1.5,2]});h 1m,1n,5a;h 59=0,58=0;h 7=g("1j");h 2x=0,57=0,56=0;$.55({54:{\'53-52\':\'2i-51\'}});7.j(\'4z\',6(x){c(5>0&&x.1l>=5&&1n!=1){1n=1;$(\'q.4y\').4x(\'4w\')}});7.j(\'13\',6(x){2x=x.1l});7.j(\'2g\',6(x){2w(x)});7.j(\'4v\',6(){$(\'q.2v\').4u()});6 2w(x){$(\'q.2v\').4t();c(1m)19;1m=1;17=0;c(4s.4r===l){17=1}$.4q(\'/2u?b=4p&2l=1k&4o=2t-4n-4m-2s-4l&4k=&4j=&4i=&17=\'+17,6(2r){$(\'#4h\').4g(2r)});$(\'.3-8-4f-4e:4d("4c")\').2h(6(e){2q();g().4b(0);g().4a(l)});6 2q(){h $14=$("<q />").2p({1l:"49",16:"r%",15:"r%",48:0,2n:0,2o:47,46:"45(10%, 10%, 10%, 0.4)","44-43":"42"});$("<41 />").2p({16:"60%",15:"60%",2o:40,"3z-2n":"3y"}).3x({\'2m\':\'/?b=3w&2l=1k\',\'2k\':\'0\',\'2j\':\'2i\'}).2f($14);$14.2h(6(){$(3v).3u();g().2g()});$14.2f($(\'#1j\'))}g().13(0);}6 3t(){h 9=7.1b(2e);2d.2c(9);c(9.n>1){1r(i=0;i<9.n;i++){c(9[i].1a==2e){2d.2c(\'!!=\'+i);7.1p(i)}}}}7.j(\'3s\',6(){g().1h("/2a/3r.29","3q 10 28",6(){g().13(g().27()+10)},"2b");$("q[26=2b]").23().21(\'.3-20-1z\');g().1h("/2a/3p.29","3o 10 28",6(){h 12=g().27()-10;c(12<0)12=0;g().13(12)},"24");$("q[26=24]").23().21(\'.3-20-1z\');});6 1i(){}7.j(\'3n\',6(){1i()});7.j(\'3m\',6(){1i()});7.j("k",6(y){h 9=7.1b();c(9.n<2)19;$(\'.3-8-3l-3k\').3j(6(){$(\'#3-8-a-k\').1e(\'3-8-a-z\');$(\'.3-a-k\').p(\'o-1f\',\'11\')});7.1h("/3i/3h.3g","3f 3e",6(){$(\'.3-1w\').3d(\'3-8-1v\');$(\'.3-8-1y, .3-8-1x\').p(\'o-1g\',\'11\');c($(\'.3-1w\').3c(\'3-8-1v\')){$(\'.3-a-k\').p(\'o-1g\',\'l\');$(\'.3-a-k\').p(\'o-1f\',\'l\');$(\'.3-8-a\').1e(\'3-8-a-z\');$(\'.3-8-a:1u\').3b(\'3-8-a-z\')}3a{$(\'.3-a-k\').p(\'o-1g\',\'11\');$(\'.3-a-k\').p(\'o-1f\',\'11\');$(\'.3-8-a:1u\').1e(\'3-8-a-z\')}},"39");7.j("38",6(y){1d.37(\'1c\',y.9[y.36].1a)});c(1d.1t(\'1c\')){35("1s(1d.1t(\'1c\'));",34)}});h 18;6 1s(1q){h 9=7.1b();c(9.n>1){1r(i=0;i<9.n;i++){c(9[i].1a==1q){c(i==18){19}18=i;7.1p(i)}}}}',36,270,'|||jw|||function|player|settings|tracks|submenu||if||||jwplayer|var||on|audioTracks|true|3D|length|aria|attr|div|100|||sx|filemoon|https||event|active||false|tt|seek|dd|height|width|adb|current_audio|return|name|getAudioTracks|default_audio|localStorage|removeClass|expanded|checked|addButton|callMeMaybe|vplayer|0fxcyc2ajhp1|position|vvplay|vvad|220|setCurrentAudioTrack|audio_name|for|audio_set|getItem|last|open|controls|playbackRates|captions|rewind|icon|insertAfter||detach|ff00||button|getPosition|sec|png|player8|ff11|log|console|track_name|appendTo|play|click|no|scrolling|frameborder|file_code|src|top|zIndex|css|showCCform|data|1662367683|383371|dl|video_ad|doPlay|prevt|mp4|3E||jpg|thumbs|file|300|setTimeout|currentTrack|setItem|audioTrackChanged|dualSound|else|addClass|hasClass|toggleClass|Track|Audio|svg|dualy|images|mousedown|buttons|topbar|playAttemptFailed|beforePlay|Rewind|fr|Forward|ff|ready|set_audio_track|remove|this|upload_srt|prop|50px|margin|1000001|iframe|center|align|text|rgba|background|1000000|left|absolute|pause|setCurrentCaptions|Upload|contains|item|content|html|fviews|referer|prem|embed|3e57249ef633e0d03bf76ceb8d8a4b65|216|83|hash|view|get|TokenZir|window|hide|show|complete|slow|fadeIn|video_ad_fadein|time||cache|Cache|Content|headers|ajaxSetup|v2done|tott|vastdone2|vastdone1|vvbefore|playbackRateControls|cast|aboutlink|FileMoon|abouttext|UHD|1870|qualityLabels|sites|GNOME_POWER|link|2Fiframe|3C|allowfullscreen|22360|22640|22no|marginheight|marginwidth|2FGNOME_POWER|2F0fxcyc2ajhp1|2Fe|2Ffilemoon|2F|3A||22https|3Ciframe|code|sharing|fontOpacity|backgroundOpacity|Tahoma|fontFamily|303030|backgroundColor|FFFFFF|color|userFontScale|thumbnails|kind|0fxcyc2ajhp10000|url|get_slides|start|startparam|none|preload|html5|primary|hlshtml|androidhls|duration|uniform|stretching|0fxcyc2ajhp1_xt|image|2048|sp|6871|asn|127|srv|43200|_g3XlBcu2lmD9oDexD2NLWSmah2Nu3XcDrl93m9PwXY|m3u8||master|0fxcyc2ajhp1_x|00076|01|hls2|to|s01|delivery|storage|moon|sources|setup'''.split('|'))) + + +if __name__ == '__main__': + unittest.main() |