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/test/ng/parseSpec.js

https://github.com/IngageStroliaC/angular.js
JavaScript | 1397 lines | 1377 code | 19 blank | 1 comment | 5 complexity | de7023a75bf86c7117935f256c6f8070 MD5 | raw file
Possible License(s): JSON

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  1. 'use strict';
    2. 

  2. 

  3. describe('parser', function() {
    4. 

  4. 

  5.   beforeEach(function() {
    6. 

  6.     // clear caches
    7. 

  7.     getterFnCache = {};
    8. 

  8.     promiseWarningCache = {};
    9. 

  9.   });
    10. 

  10. 

  11. 

  12.   describe('lexer', function() {
    13. 

  13.     var lex;
    14. 

  14. 

  15.     beforeEach(function () {
    16. 

  16.       lex = function () {
    17. 

  17.         var lexer = new Lexer({csp: false, unwrapPromises: false});
    18. 

  18.         return lexer.lex.apply(lexer, arguments);
    19. 

  19.       };
    20. 

  20.     });
    21. 

  21. 

  22.     it('should tokenize a string', function() {
    23. 

  23.       var tokens = lex("a.bc[22]+1.3|f:'a\\\'c':\"d\\\"e\"");
    24. 

  24.       var i = 0;
    25. 

  25.       expect(tokens[i].index).toEqual(0);
    26. 

  26.       expect(tokens[i].text).toEqual('a.bc');
    27. 

  27. 

  28.       i++;
    29. 

  29.       expect(tokens[i].index).toEqual(4);
    30. 

  30.       expect(tokens[i].text).toEqual('[');
    31. 

  31. 

  32.       i++;
    33. 

  33.       expect(tokens[i].index).toEqual(5);
    34. 

  34.       expect(tokens[i].text).toEqual(22);
    35. 

  35. 

  36.       i++;
    37. 

  37.       expect(tokens[i].index).toEqual(7);
    38. 

  38.       expect(tokens[i].text).toEqual(']');
    39. 

  39. 

  40.       i++;
    41. 

  41.       expect(tokens[i].index).toEqual(8);
    42. 

  42.       expect(tokens[i].text).toEqual('+');
    43. 

  43. 

  44.       i++;
    45. 

  45.       expect(tokens[i].index).toEqual(9);
    46. 

  46.       expect(tokens[i].text).toEqual(1.3);
    47. 

  47. 

  48.       i++;
    49. 

  49.       expect(tokens[i].index).toEqual(12);
    50. 

  50.       expect(tokens[i].text).toEqual('|');
    51. 

  51. 

  52.       i++;
    53. 

  53.       expect(tokens[i].index).toEqual(13);
    54. 

  54.       expect(tokens[i].text).toEqual('f');
    55. 

  55. 

  56.       i++;
    57. 

  57.       expect(tokens[i].index).toEqual(14);
    58. 

  58.       expect(tokens[i].text).toEqual(':');
    59. 

  59. 

  60.       i++;
    61. 

  61.       expect(tokens[i].index).toEqual(15);
    62. 

  62.       expect(tokens[i].string).toEqual("a'c");
    63. 

  63. 

  64.       i++;
    65. 

  65.       expect(tokens[i].index).toEqual(21);
    66. 

  66.       expect(tokens[i].text).toEqual(':');
    67. 

  67. 

  68.       i++;
    69. 

  69.       expect(tokens[i].index).toEqual(22);
    70. 

  70.       expect(tokens[i].string).toEqual('d"e');
    71. 

  71.     });
    72. 

  72. 

  73.     it('should tokenize undefined', function() {
    74. 

  74.       var tokens = lex("undefined");
    75. 

  75.       var i = 0;
    76. 

  76.       expect(tokens[i].index).toEqual(0);
    77. 

  77.       expect(tokens[i].text).toEqual('undefined');
    78. 

  78.       expect(undefined).toEqual(tokens[i].fn());
    79. 

  79.     });
    80. 

  80. 

  81.     it('should tokenize quoted string', function() {
    82. 

  82.       var str = "['\\'', \"\\\"\"]";
    83. 

  83.       var tokens = lex(str);
    84. 

  84. 

  85.       expect(tokens[1].index).toEqual(1);
    86. 

  86.       expect(tokens[1].string).toEqual("'");
    87. 

  87. 

  88.       expect(tokens[3].index).toEqual(7);
    89. 

  89.       expect(tokens[3].string).toEqual('"');
    90. 

  90.     });
    91. 

  91. 

  92.     it('should tokenize escaped quoted string', function() {
    93. 

  93.       var str = '"\\"\\n\\f\\r\\t\\v\\u00A0"';
    94. 

  94.       var tokens = lex(str);
    95. 

  95. 

  96.       expect(tokens[0].string).toEqual('"\n\f\r\t\v\u00A0');
    97. 

  97.     });
    98. 

  98. 

  99.     it('should tokenize unicode', function() {
    100. 

  100.       var tokens = lex('"\\u00A0"');
    101. 

  101.       expect(tokens.length).toEqual(1);
    102. 

  102.       expect(tokens[0].string).toEqual('\u00a0');
    103. 

  103.     });
    104. 

  104. 

  105.     it('should ignore whitespace', function() {
    106. 

  106.       var tokens = lex("a \t \n \r b");
    107. 

  107.       expect(tokens[0].text).toEqual('a');
    108. 

  108.       expect(tokens[1].text).toEqual('b');
    109. 

  109.     });
    110. 

  110. 

  111.     it('should tokenize relation and equality', function() {
    112. 

  112.       var tokens = lex("! == != < > <= >= === !==");
    113. 

  113.       expect(tokens[0].text).toEqual('!');
    114. 

  114.       expect(tokens[1].text).toEqual('==');
    115. 

  115.       expect(tokens[2].text).toEqual('!=');
    116. 

  116.       expect(tokens[3].text).toEqual('<');
    117. 

  117.       expect(tokens[4].text).toEqual('>');
    118. 

  118.       expect(tokens[5].text).toEqual('<=');
    119. 

  119.       expect(tokens[6].text).toEqual('>=');
    120. 

  120.       expect(tokens[7].text).toEqual('===');
    121. 

  121.       expect(tokens[8].text).toEqual('!==');
    122. 

  122.     });
    123. 

  123. 

  124.     it('should tokenize logical and ternary', function() {
    125. 

  125.       var tokens = lex("&& || ? :");
    126. 

  126.       expect(tokens[0].text).toEqual('&&');
    127. 

  127.       expect(tokens[1].text).toEqual('||');
    128. 

  128.       expect(tokens[2].text).toEqual('?');
    129. 

  129.       expect(tokens[3].text).toEqual(':');
    130. 

  130.     });
    131. 

  131. 

  132.     it('should tokenize statements', function() {
    133. 

  133.       var tokens = lex("a;b;");
    134. 

  134.       expect(tokens[0].text).toEqual('a');
    135. 

  135.       expect(tokens[1].text).toEqual(';');
    136. 

  136.       expect(tokens[2].text).toEqual('b');
    137. 

  137.       expect(tokens[3].text).toEqual(';');
    138. 

  138.     });
    139. 

  139. 

  140.     it('should tokenize function invocation', function() {
    141. 

  141.       var tokens = lex("a()");
    142. 

  142.       expect(map(tokens, function(t) { return t.text;})).toEqual(['a', '(', ')']);
    143. 

  143.     });
    144. 

  144. 

  145.     it('should tokenize method invocation', function() {
    146. 

  146.       var tokens = lex("a.b.c (d) - e.f()");
    147. 

  147.       expect(map(tokens, function(t) { return t.text;})).
    148. 

  148.           toEqual(['a.b', '.', 'c',  '(', 'd', ')', '-', 'e', '.', 'f', '(', ')']);
    149. 

  149.     });
    150. 

  150. 

  151.     it('should tokenize number', function() {
    152. 

  152.       var tokens = lex("0.5");
    153. 

  153.       expect(tokens[0].text).toEqual(0.5);
    154. 

  154.     });
    155. 

  155. 

  156.     it('should tokenize negative number', inject(function($rootScope) {
    157. 

  157.       var value = $rootScope.$eval("-0.5");
    158. 

  158.       expect(value).toEqual(-0.5);
    159. 

  159. 

  160.       value = $rootScope.$eval("{a:-0.5}");
    161. 

  161.       expect(value).toEqual({a:-0.5});
    162. 

  162.     }));
    163. 

  163. 

  164.     it('should tokenize number with exponent', inject(function($rootScope) {
    165. 

  165.       var tokens = lex("0.5E-10");
    166. 

  166.       expect(tokens[0].text).toEqual(0.5E-10);
    167. 

  167.       expect($rootScope.$eval("0.5E-10")).toEqual(0.5E-10);
    168. 

  168. 

  169.       tokens = lex("0.5E+10");
    170. 

  170.       expect(tokens[0].text).toEqual(0.5E+10);
    171. 

  171.     }));
    172. 

  172. 

  173.     it('should throws exception for invalid exponent', function() {
    174. 

  174.       expect(function() {
    175. 

  175.         lex("0.5E-");
    176. 

  176.       }).toThrowMinErr('$parse', 'lexerr', 'Lexer Error: Invalid exponent at column 4 in expression [0.5E-].');
    177. 

  177. 

  178.       expect(function() {
    179. 

  179.         lex("0.5E-A");
    180. 

  180.       }).toThrowMinErr('$parse', 'lexerr', 'Lexer Error: Invalid exponent at column 4 in expression [0.5E-A].');
    181. 

  181.     });
    182. 

  182. 

  183.     it('should tokenize number starting with a dot', function() {
    184. 

  184.       var tokens = lex(".5");
    185. 

  185.       expect(tokens[0].text).toEqual(0.5);
    186. 

  186.     });
    187. 

  187. 

  188.     it('should throw error on invalid unicode', function() {
    189. 

  189.       expect(function() {
    190. 

  190.         lex("'\\u1''bla'");
    191. 

  191.       }).toThrowMinErr("$parse", "lexerr", "Lexer Error: Invalid unicode escape [\\u1''b] at column 2 in expression ['\\u1''bla'].");
    192. 

  192.     });
    193. 

  193.   });
    194. 

  194. 

  195.   var $filterProvider, scope;
    196. 

  196. 

  197.   beforeEach(module(['$filterProvider', function (filterProvider) {
    198. 

  198.     $filterProvider = filterProvider;
    199. 

  199.   }]));
    200. 

  200. 

  201. 

  202.   forEach([true, false], function(cspEnabled) {
    203. 

  203.     forEach([true, false], function(unwrapPromisesEnabled) {
    204. 

  204. 

  205.       describe('csp: ' + cspEnabled + ", unwrapPromises: " + unwrapPromisesEnabled, function() {
    206. 

  206. 

  207.         beforeEach(module(function ($parseProvider) {
    208. 

  208.           $parseProvider.unwrapPromises(unwrapPromisesEnabled);
    209. 

  209.         }));
    210. 

  210. 

  211.         beforeEach(inject(function ($rootScope, $sniffer) {
    212. 

  212.           scope = $rootScope;
    213. 

  213.           $sniffer.csp = cspEnabled;
    214. 

  214.         }));
    215. 

  215. 

  216.         it('should parse expressions', function() {
    217. 

  217.           expect(scope.$eval("-1")).toEqual(-1);
    218. 

  218.           expect(scope.$eval("1 + 2.5")).toEqual(3.5);
    219. 

  219.           expect(scope.$eval("1 + -2.5")).toEqual(-1.5);
    220. 

  220.           expect(scope.$eval("1+2*3/4")).toEqual(1+2*3/4);
    221. 

  221.           expect(scope.$eval("0--1+1.5")).toEqual(0- -1 + 1.5);
    222. 

  222.           expect(scope.$eval("-0--1++2*-3/-4")).toEqual(-0- -1+ +2*-3/-4);
    223. 

  223.           expect(scope.$eval("1/2*3")).toEqual(1/2*3);
    224. 

  224.         });
    225. 

  225. 

  226.         it('should parse comparison', function() {
    227. 

  227.           expect(scope.$eval("false")).toBeFalsy();
    228. 

  228.           expect(scope.$eval("!true")).toBeFalsy();
    229. 

  229.           expect(scope.$eval("1==1")).toBeTruthy();
    230. 

  230.           expect(scope.$eval("1==true")).toBeTruthy();
    231. 

  231.           expect(scope.$eval("1===1")).toBeTruthy();
    232. 

  232.           expect(scope.$eval("1==='1'")).toBeFalsy();
    233. 

  233.           expect(scope.$eval("1===true")).toBeFalsy();
    234. 

  234.           expect(scope.$eval("'true'===true")).toBeFalsy();
    235. 

  235.           expect(scope.$eval("1!==2")).toBeTruthy();
    236. 

  236.           expect(scope.$eval("1!=='1'")).toBeTruthy();
    237. 

  237.           expect(scope.$eval("1!=2")).toBeTruthy();
    238. 

  238.           expect(scope.$eval("1<2")).toBeTruthy();
    239. 

  239.           expect(scope.$eval("1<=1")).toBeTruthy();
    240. 

  240.           expect(scope.$eval("1>2")).toEqual(1>2);
    241. 

  241.           expect(scope.$eval("2>=1")).toEqual(2>=1);
    242. 

  242.           expect(scope.$eval("true==2<3")).toEqual(true == 2<3);
    243. 

  243.           expect(scope.$eval("true===2<3")).toEqual(true === 2<3);
    244. 

  244.         });
    245. 

  245. 

  246.         it('should parse logical', function() {
    247. 

  247.           expect(scope.$eval("0&&2")).toEqual(0&&2);
    248. 

  248.           expect(scope.$eval("0||2")).toEqual(0||2);
    249. 

  249.           expect(scope.$eval("0||1&&2")).toEqual(0||1&&2);
    250. 

  250.         });
    251. 

  251. 

  252.         it('should parse ternary', function(){
    253. 

  253.           var returnTrue = scope.returnTrue = function(){ return true; };
    254. 

  254.           var returnFalse = scope.returnFalse = function(){ return false; };
    255. 

  255.           var returnString = scope.returnString = function(){ return 'asd'; };
    256. 

  256.           var returnInt = scope.returnInt = function(){ return 123; };
    257. 

  257.           var identity = scope.identity = function(x){ return x; };
    258. 

  258. 

  259.           // Simple.
    260. 

  260.           expect(scope.$eval('0?0:2')).toEqual(0?0:2);
    261. 

  261.           expect(scope.$eval('1?0:2')).toEqual(1?0:2);
    262. 

  262. 

  263.           // Nested on the left.
    264. 

  264.           expect(scope.$eval('0?0?0:0:2')).toEqual(0?0?0:0:2);
    265. 

  265.           expect(scope.$eval('1?0?0:0:2')).toEqual(1?0?0:0:2);
    266. 

  266.           expect(scope.$eval('0?1?0:0:2')).toEqual(0?1?0:0:2);
    267. 

  267.           expect(scope.$eval('0?0?1:0:2')).toEqual(0?0?1:0:2);
    268. 

  268.           expect(scope.$eval('0?0?0:2:3')).toEqual(0?0?0:2:3);
    269. 

  269.           expect(scope.$eval('1?1?0:0:2')).toEqual(1?1?0:0:2);
    270. 

  270.           expect(scope.$eval('1?1?1:0:2')).toEqual(1?1?1:0:2);
    271. 

  271.           expect(scope.$eval('1?1?1:2:3')).toEqual(1?1?1:2:3);
    272. 

  272.           expect(scope.$eval('1?1?1:2:3')).toEqual(1?1?1:2:3);
    273. 

  273. 

  274.           // Nested on the right.
    275. 

  275.           expect(scope.$eval('0?0:0?0:2')).toEqual(0?0:0?0:2);
    276. 

  276.           expect(scope.$eval('1?0:0?0:2')).toEqual(1?0:0?0:2);
    277. 

  277.           expect(scope.$eval('0?1:0?0:2')).toEqual(0?1:0?0:2);
    278. 

  278.           expect(scope.$eval('0?0:1?0:2')).toEqual(0?0:1?0:2);
    279. 

  279.           expect(scope.$eval('0?0:0?2:3')).toEqual(0?0:0?2:3);
    280. 

  280.           expect(scope.$eval('1?1:0?0:2')).toEqual(1?1:0?0:2);
    281. 

  281.           expect(scope.$eval('1?1:1?0:2')).toEqual(1?1:1?0:2);
    282. 

  282.           expect(scope.$eval('1?1:1?2:3')).toEqual(1?1:1?2:3);
    283. 

  283.           expect(scope.$eval('1?1:1?2:3')).toEqual(1?1:1?2:3);
    284. 

  284. 

  285.           // Precedence with respect to logical operators.
    286. 

  286.           expect(scope.$eval('0&&1?0:1')).toEqual(0&&1?0:1);
    287. 

  287.           expect(scope.$eval('1||0?0:0')).toEqual(1||0?0:0);
    288. 

  288. 

  289.           expect(scope.$eval('0?0&&1:2')).toEqual(0?0&&1:2);
    290. 

  290.           expect(scope.$eval('0?1&&1:2')).toEqual(0?1&&1:2);
    291. 

  291.           expect(scope.$eval('0?0||0:1')).toEqual(0?0||0:1);
    292. 

  292.           expect(scope.$eval('0?0||1:2')).toEqual(0?0||1:2);
    293. 

  293. 

  294.           expect(scope.$eval('1?0&&1:2')).toEqual(1?0&&1:2);
    295. 

  295.           expect(scope.$eval('1?1&&1:2')).toEqual(1?1&&1:2);
    296. 

  296.           expect(scope.$eval('1?0||0:1')).toEqual(1?0||0:1);
    297. 

  297.           expect(scope.$eval('1?0||1:2')).toEqual(1?0||1:2);
    298. 

  298. 

  299.           expect(scope.$eval('0?1:0&&1')).toEqual(0?1:0&&1);
    300. 

  300.           expect(scope.$eval('0?2:1&&1')).toEqual(0?2:1&&1);
    301. 

  301.           expect(scope.$eval('0?1:0||0')).toEqual(0?1:0||0);
    302. 

  302.           expect(scope.$eval('0?2:0||1')).toEqual(0?2:0||1);
    303. 

  303. 

  304.           expect(scope.$eval('1?1:0&&1')).toEqual(1?1:0&&1);
    305. 

  305.           expect(scope.$eval('1?2:1&&1')).toEqual(1?2:1&&1);
    306. 

  306.           expect(scope.$eval('1?1:0||0')).toEqual(1?1:0||0);
    307. 

  307.           expect(scope.$eval('1?2:0||1')).toEqual(1?2:0||1);
    308. 

  308. 

  309.           // Function calls.
    310. 

  310.           expect(scope.$eval('returnTrue() ? returnString() : returnInt()')).toEqual(returnTrue() ? returnString() : returnInt());
    311. 

  311.           expect(scope.$eval('returnFalse() ? returnString() : returnInt()')).toEqual(returnFalse() ? returnString() : returnInt());
    312. 

  312.           expect(scope.$eval('returnTrue() ? returnString() : returnInt()')).toEqual(returnTrue() ? returnString() : returnInt());
    313. 

  313.           expect(scope.$eval('identity(returnFalse() ? returnString() : returnInt())')).toEqual(identity(returnFalse() ? returnString() : returnInt()));
    314. 

  314.         });
    315. 

  315. 

  316.         it('should parse string', function() {
    317. 

  317.           expect(scope.$eval("'a' + 'b c'")).toEqual("ab c");
    318. 

  318.         });
    319. 

  319. 

  320.         it('should parse filters', function() {
    321. 

  321.           $filterProvider.register('substring', valueFn(function(input, start, end) {
    322. 

  322.             return input.substring(start, end);
    323. 

  323.           }));
    324. 

  324. 

  325.           expect(function() {
    326. 

  326.             scope.$eval("1|nonexistent");
    327. 

  327.           }).toThrowMinErr('$injector', 'unpr', 'Unknown provider: nonexistentFilterProvider <- nonexistentFilter');
    328. 

  328. 

  329.           scope.offset =  3;
    330. 

  330.           expect(scope.$eval("'abcd'|substring:1:offset")).toEqual("bc");
    331. 

  331.           expect(scope.$eval("'abcd'|substring:1:3|uppercase")).toEqual("BC");
    332. 

  332.         });
    333. 

  333. 

  334.         it('should access scope', function() {
    335. 

  335.           scope.a =  123;
    336. 

  336.           scope.b = {c: 456};
    337. 

  337.           expect(scope.$eval("a", scope)).toEqual(123);
    338. 

  338.           expect(scope.$eval("b.c", scope)).toEqual(456);
    339. 

  339.           expect(scope.$eval("x.y.z", scope)).not.toBeDefined();
    340. 

  340.         });
    341. 

  341. 

  342.         it('should resolve deeply nested paths (important for CSP mode)', function() {
    343. 

  343.           scope.a = {b: {c: {d: {e: {f: {g: {h: {i: {j: {k: {l: {m: {n: 'nooo!'}}}}}}}}}}}}};
    344. 

  344.           expect(scope.$eval("a.b.c.d.e.f.g.h.i.j.k.l.m.n", scope)).toBe('nooo!');
    345. 

  345.         });
    346. 

  346. 

  347.         it('should be forgiving', function() {
    348. 

  348.           scope.a = {b: 23};
    349. 

  349.           expect(scope.$eval('b')).toBeUndefined();
    350. 

  350.           expect(scope.$eval('a.x')).toBeUndefined();
    351. 

  351.           expect(scope.$eval('a.b.c.d')).toBeUndefined();
    352. 

  352.         });
    353. 

  353. 

  354.         it('should support property names that collide with native object properties', function() {
    355. 

  355.           // regression
    356. 

  356.           scope.watch = 1;
    357. 

  357.           scope.toString = function toString() {
    358. 

  358.             return "custom toString";
    359. 

  359.           };
    360. 

  360. 

  361.           expect(scope.$eval('watch', scope)).toBe(1);
    362. 

  362.           expect(scope.$eval('toString()', scope)).toBe('custom toString');
    363. 

  363.         });
    364. 

  364. 

  365.         it('should not break if hasOwnProperty is referenced in an expression', function() {
    366. 

  366.           scope.obj = { value: 1};
    367. 

  367.           // By evaluating an expression that calls hasOwnProperty, the getterFnCache
    368. 

  368.           // will store a property called hasOwnProperty.  This is effectively:
    369. 

  369.           // getterFnCache['hasOwnProperty'] = null
    370. 

  370.           scope.$eval('obj.hasOwnProperty("value")');
    371. 

  371.           // If we rely on this property then evaluating any expression will fail
    372. 

  372.           // because it is not able to find out if obj.value is there in the cache
    373. 

  373.           expect(scope.$eval('obj.value')).toBe(1);
    374. 

  374.         });
    375. 

  375. 

  376.         it('should not break if the expression is "hasOwnProperty"', function() {
    377. 

  377.           scope.fooExp = 'barVal';
    378. 

  378.           // By evaluating hasOwnProperty, the $parse cache will store a getter for
    379. 

  379.           // the scope's own hasOwnProperty function, which will mess up future cache look ups.
    380. 

  380.           // i.e. cache['hasOwnProperty'] = function(scope) { return scope.hasOwnProperty; }
    381. 

  381.           scope.$eval('hasOwnProperty');
    382. 

  382.           expect(scope.$eval('fooExp')).toBe('barVal');
    383. 

  383.         });
    384. 

  384. 

  385.         it('should evaluate grouped expressions', function() {
    386. 

  386.           expect(scope.$eval("(1+2)*3")).toEqual((1+2)*3);
    387. 

  387.         });
    388. 

  388. 

  389.         it('should evaluate assignments', function() {
    390. 

  390.           expect(scope.$eval("a=12")).toEqual(12);
    391. 

  391.           expect(scope.a).toEqual(12);
    392. 

  392. 

  393.           expect(scope.$eval("x.y.z=123;")).toEqual(123);
    394. 

  394.           expect(scope.x.y.z).toEqual(123);
    395. 

  395. 

  396.           expect(scope.$eval("a=123; b=234")).toEqual(234);
    397. 

  397.           expect(scope.a).toEqual(123);
    398. 

  398.           expect(scope.b).toEqual(234);
    399. 

  399.         });
    400. 

  400. 

  401.         it('should evaluate function call without arguments', function() {
    402. 

  402.           scope['const'] =  function(a,b){return 123;};
    403. 

  403.           expect(scope.$eval("const()")).toEqual(123);
    404. 

  404.         });
    405. 

  405. 

  406.         it('should evaluate function call with arguments', function() {
    407. 

  407.           scope.add =  function(a,b) {
    408. 

  408.             return a+b;
    409. 

  409.           };
    410. 

  410.           expect(scope.$eval("add(1,2)")).toEqual(3);
    411. 

  411.         });
    412. 

  412. 

  413.         it('should evaluate function call from a return value', function() {
    414. 

  414.           scope.val = 33;
    415. 

  415.           scope.getter = function() { return function() { return this.val; }};
    416. 

  416.           expect(scope.$eval("getter()()")).toBe(33);
    417. 

  417.         });
    418. 

  418. 

  419.         it('should evaluate multiplication and division', function() {
    420. 

  420.           scope.taxRate =  8;
    421. 

  421.           scope.subTotal =  100;
    422. 

  422.           expect(scope.$eval("taxRate / 100 * subTotal")).toEqual(8);
    423. 

  423.           expect(scope.$eval("subTotal * taxRate / 100")).toEqual(8);
    424. 

  424.         });
    425. 

  425. 

  426.         it('should evaluate array', function() {
    427. 

  427.           expect(scope.$eval("[]").length).toEqual(0);
    428. 

  428.           expect(scope.$eval("[1, 2]").length).toEqual(2);
    429. 

  429.           expect(scope.$eval("[1, 2]")[0]).toEqual(1);
    430. 

  430.           expect(scope.$eval("[1, 2]")[1]).toEqual(2);
    431. 

  431.         });
    432. 

  432. 

  433.         it('should evaluate array access', function() {
    434. 

  434.           expect(scope.$eval("[1][0]")).toEqual(1);
    435. 

  435.           expect(scope.$eval("[[1]][0][0]")).toEqual(1);
    436. 

  436.           expect(scope.$eval("[].length")).toEqual(0);
    437. 

  437.           expect(scope.$eval("[1, 2].length")).toEqual(2);
    438. 

  438.         });
    439. 

  439. 

  440.         it('should evaluate object', function() {
    441. 

  441.           expect(toJson(scope.$eval("{}"))).toEqual("{}");
    442. 

  442.           expect(toJson(scope.$eval("{a:'b'}"))).toEqual('{"a":"b"}');
    443. 

  443.           expect(toJson(scope.$eval("{'a':'b'}"))).toEqual('{"a":"b"}');
    444. 

  444.           expect(toJson(scope.$eval("{\"a\":'b'}"))).toEqual('{"a":"b"}');
    445. 

  445.         });
    446. 

  446. 

  447.         it('should evaluate object access', function() {
    448. 

  448.           expect(scope.$eval("{false:'WC', true:'CC'}[false]")).toEqual("WC");
    449. 

  449.         });
    450. 

  450. 

  451.         it('should evaluate JSON', function() {
    452. 

  452.           expect(toJson(scope.$eval("[{}]"))).toEqual("[{}]");
    453. 

  453.           expect(toJson(scope.$eval("[{a:[]}, {b:1}]"))).toEqual('[{"a":[]},{"b":1}]');
    454. 

  454.         });
    455. 

  455. 

  456.         it('should evaluate multiple statements', function() {
    457. 

  457.           expect(scope.$eval("a=1;b=3;a+b")).toEqual(4);
    458. 

  458.           expect(scope.$eval(";;1;;")).toEqual(1);
    459. 

  459.         });
    460. 

  460. 

  461.         it('should evaluate object methods in correct context (this)', function() {
    462. 

  462.           var C = function () {
    463. 

  463.             this.a = 123;
    464. 

  464.           };
    465. 

  465.           C.prototype.getA = function() {
    466. 

  466.             return this.a;
    467. 

  467.           };
    468. 

  468. 

  469.           scope.obj = new C();
    470. 

  470.           expect(scope.$eval("obj.getA()")).toEqual(123);
    471. 

  471.           expect(scope.$eval("obj['getA']()")).toEqual(123);
    472. 

  472.         });
    473. 

  473. 

  474.         it('should evaluate methods in correct context (this) in argument', function() {
    475. 

  475.           var C = function () {
    476. 

  476.             this.a = 123;
    477. 

  477.           };
    478. 

  478.           C.prototype.sum = function(value) {
    479. 

  479.             return this.a + value;
    480. 

  480.           };
    481. 

  481.           C.prototype.getA = function() {
    482. 

  482.             return this.a;
    483. 

  483.           };
    484. 

  484. 

  485.           scope.obj = new C();
    486. 

  486.           expect(scope.$eval("obj.sum(obj.getA())")).toEqual(246);
    487. 

  487.           expect(scope.$eval("obj['sum'](obj.getA())")).toEqual(246);
    488. 

  488.         });
    489. 

  489. 

  490.         it('should evaluate objects on scope context', function() {
    491. 

  491.           scope.a =  "abc";
    492. 

  492.           expect(scope.$eval("{a:a}").a).toEqual("abc");
    493. 

  493.         });
    494. 

  494. 

  495.         it('should evaluate field access on function call result', function() {
    496. 

  496.           scope.a =  function() {
    497. 

  497.             return {name:'misko'};
    498. 

  498.           };
    499. 

  499.           expect(scope.$eval("a().name")).toEqual("misko");
    500. 

  500.         });
    501. 

  501. 

  502.         it('should evaluate field access after array access', function () {
    503. 

  503.           scope.items =  [{}, {name:'misko'}];
    504. 

  504.           expect(scope.$eval('items[1].name')).toEqual("misko");
    505. 

  505.         });
    506. 

  506. 

  507.         it('should evaluate array assignment', function() {
    508. 

  508.           scope.items =  [];
    509. 

  509. 

  510.           expect(scope.$eval('items[1] = "abc"')).toEqual("abc");
    511. 

  511.           expect(scope.$eval('items[1]')).toEqual("abc");
    512. 

  512.       //    Dont know how to make this work....
    513. 

  513.       //    expect(scope.$eval('books[1] = "moby"')).toEqual("moby");
    514. 

  514.       //    expect(scope.$eval('books[1]')).toEqual("moby");
    515. 

  515.         });
    516. 

  516. 

  517.         it('should evaluate grouped filters', function() {
    518. 

  518.           scope.name = 'MISKO';
    519. 

  519.           expect(scope.$eval('n = (name|lowercase)')).toEqual('misko');
    520. 

  520.           expect(scope.$eval('n')).toEqual('misko');
    521. 

  521.         });
    522. 

  522. 

  523.         it('should evaluate remainder', function() {
    524. 

  524.           expect(scope.$eval('1%2')).toEqual(1);
    525. 

  525.         });
    526. 

  526. 

  527.         it('should evaluate sum with undefined', function() {
    528. 

  528.           expect(scope.$eval('1+undefined')).toEqual(1);
    529. 

  529.           expect(scope.$eval('undefined+1')).toEqual(1);
    530. 

  530.         });
    531. 

  531. 

  532.         it('should throw exception on non-closed bracket', function() {
    533. 

  533.           expect(function() {
    534. 

  534.             scope.$eval('[].count(');
    535. 

  535.           }).toThrowMinErr('$parse', 'ueoe', 'Unexpected end of expression: [].count(');
    536. 

  536.         });
    537. 

  537. 

  538.         it('should evaluate double negation', function() {
    539. 

  539.           expect(scope.$eval('true')).toBeTruthy();
    540. 

  540.           expect(scope.$eval('!true')).toBeFalsy();
    541. 

  541.           expect(scope.$eval('!!true')).toBeTruthy();
    542. 

  542.           expect(scope.$eval('{true:"a", false:"b"}[!!true]')).toEqual('a');
    543. 

  543.         });
    544. 

  544. 

  545.         it('should evaluate negation', function() {
    546. 

  546.           expect(scope.$eval("!false || true")).toEqual(!false || true);
    547. 

  547.           expect(scope.$eval("!11 == 10")).toEqual(!11 == 10);
    548. 

  548.           expect(scope.$eval("12/6/2")).toEqual(12/6/2);
    549. 

  549.         });
    550. 

  550. 

  551.         it('should evaluate exclamation mark', function() {
    552. 

  552.           expect(scope.$eval('suffix = "!"')).toEqual('!');
    553. 

  553.         });
    554. 

  554. 

  555.         it('should evaluate minus', function() {
    556. 

  556.           expect(scope.$eval("{a:'-'}")).toEqual({a: "-"});
    557. 

  557.         });
    558. 

  558. 

  559.         it('should evaluate undefined', function() {
    560. 

  560.           expect(scope.$eval("undefined")).not.toBeDefined();
    561. 

  561.           expect(scope.$eval("a=undefined")).not.toBeDefined();
    562. 

  562.           expect(scope.a).not.toBeDefined();
    563. 

  563.         });
    564. 

  564. 

  565.         it('should allow assignment after array dereference', function() {
    566. 

  566.           scope.obj = [{}];
    567. 

  567.           scope.$eval('obj[0].name=1');
    568. 

  568.           expect(scope.obj.name).toBeUndefined();
    569. 

  569.           expect(scope.obj[0].name).toEqual(1);
    570. 

  570.         });
    571. 

  571. 

  572.         it('should short-circuit AND operator', function() {
    573. 

  573.           scope.run = function() {
    574. 

  574.             throw "IT SHOULD NOT HAVE RUN";
    575. 

  575.           };
    576. 

  576.           expect(scope.$eval('false && run()')).toBe(false);
    577. 

  577.         });
    578. 

  578. 

  579.         it('should short-circuit OR operator', function() {
    580. 

  580.           scope.run = function() {
    581. 

  581.             throw "IT SHOULD NOT HAVE RUN";
    582. 

  582.           };
    583. 

  583.           expect(scope.$eval('true || run()')).toBe(true);
    584. 

  584.         });
    585. 

  585. 

  586. 

  587.         it('should support method calls on primitive types', function() {
    588. 

  588.           scope.empty = '';
    589. 

  589.           scope.zero = 0;
    590. 

  590.           scope.bool = false;
    591. 

  591. 

  592.           expect(scope.$eval('empty.substr(0)')).toBe('');
    593. 

  593.           expect(scope.$eval('zero.toString()')).toBe('0');
    594. 

  594.           expect(scope.$eval('bool.toString()')).toBe('false');
    595. 

  595.         });
    596. 

  596. 

  597.         it('should evaluate expressions with line terminators', function() {
    598. 

  598.           scope.a = "a";
    599. 

  599.           scope.b = {c: "bc"};
    600. 

  600.           expect(scope.$eval('a + \n b.c + \r "\td" + \t \r\n\r "\r\n\n"')).toEqual("abc\td\r\n\n");
    601. 

  601.         });
    602. 

  602. 

  603.         describe('sandboxing', function() {
    604. 

  604.           describe('Function constructor', function() {
    605. 

  605.             it('should NOT allow access to Function constructor in getter', function() {
    606. 

  606.               expect(function() {
    607. 

  607.                 scope.$eval('{}.toString.constructor');
    608. 

  608.               }).toThrowMinErr(
    609. 

  609.                       '$parse', 'isecfld', 'Referencing "constructor" field in Angular expressions is disallowed! ' +
    610. 

  610.                       'Expression: {}.toString.constructor');
    611. 

  611. 

  612.               expect(function() {
    613. 

  613.                 scope.$eval('{}.toString.constructor("alert(1)")');
    614. 

  614.               }).toThrowMinErr(
    615. 

  615.                       '$parse', 'isecfld', 'Referencing "constructor" field in Angular expressions is disallowed! ' +
    616. 

  616.                       'Expression: {}.toString.constructor("alert(1)")');
    617. 

  617. 

  618.               expect(function() {
    619. 

  619.                 scope.$eval('[].toString.constructor.foo');
    620. 

  620.               }).toThrowMinErr(
    621. 

  621.                       '$parse', 'isecfld', 'Referencing "constructor" field in Angular expressions is disallowed! ' +
    622. 

  622.                       'Expression: [].toString.constructor.foo');
    623. 

  623. 

  624.               expect(function() {
    625. 

  625.                 scope.$eval('{}.toString["constructor"]');
    626. 

  626.               }).toThrowMinErr(
    627. 

  627.                       '$parse', 'isecfn', 'Referencing Function in Angular expressions is disallowed! ' +
    628. 

  628.                       'Expression: {}.toString["constructor"]');
    629. 

  629.               expect(function() {
    630. 

  630.                 scope.$eval('{}["toString"]["constructor"]');
    631. 

  631.               }).toThrowMinErr(
    632. 

  632.                       '$parse', 'isecfn', 'Referencing Function in Angular expressions is disallowed! ' +
    633. 

  633.                       'Expression: {}["toString"]["constructor"]');
    634. 

  634. 

  635.               scope.a = [];
    636. 

  636.               expect(function() {
    637. 

  637.                 scope.$eval('a.toString.constructor', scope);
    638. 

  638.               }).toThrowMinErr(
    639. 

  639.                       '$parse', 'isecfld', 'Referencing "constructor" field in Angular expressions is disallowed! ' +
    640. 

  640.                       'Expression: a.toString.constructor');
    641. 

  641.               expect(function() {
    642. 

  642.                 scope.$eval('a.toString["constructor"]', scope);
    643. 

  643.               }).toThrowMinErr(
    644. 

  644.                       '$parse', 'isecfn', 'Referencing Function in Angular expressions is disallowed! ' +
    645. 

  645.                       'Expression: a.toString["constructor"]');
    646. 

  646.             });
    647. 

  647. 

  648.             it('should NOT allow access to Function constructor in setter', function() {
    649. 

  649.               expect(function() {
    650. 

  650.                 scope.$eval('{}.toString.constructor = 1');
    651. 

  651.               }).toThrowMinErr(
    652. 

  652.                       '$parse', 'isecfld', 'Referencing "constructor" field in Angular expressions is disallowed! ' +
    653. 

  653.                       'Expression: {}.toString.constructor = 1');
    654. 

  654. 

  655.               expect(function() {
    656. 

  656.                 scope.$eval('{}.toString.constructor.a = 1');
    657. 

  657.               }).toThrowMinErr(
    658. 

  658.                       '$parse', 'isecfld', 'Referencing "constructor" field in Angular expressions is disallowed! ' +
    659. 

  659.                       'Expression: {}.toString.constructor.a = 1');
    660. 

  660. 

  661.               expect(function() {
    662. 

  662.                 scope.$eval('{}.toString["constructor"]["constructor"] = 1');
    663. 

  663.               }).toThrowMinErr(
    664. 

  664.                       '$parse', 'isecfn', 'Referencing Function in Angular expressions is disallowed! ' +
    665. 

  665.                       'Expression: {}.toString["constructor"]["constructor"] = 1');
    666. 

  666. 

  667. 

  668.               scope.key1 = "const";
    669. 

  669.               scope.key2 = "ructor";
    670. 

  670.               expect(function() {
    671. 

  671.                 scope.$eval('{}.toString[key1 + key2].foo = 1');
    672. 

  672.               }).toThrowMinErr(
    673. 

  673.                       '$parse', 'isecfn', 'Referencing Function in Angular expressions is disallowed! ' +
    674. 

  674.                           'Expression: {}.toString[key1 + key2].foo = 1');
    675. 

  675. 

  676.               expect(function() {
    677. 

  677.                 scope.$eval('{}.toString["constructor"]["a"] = 1');
    678. 

  678.               }).toThrowMinErr(
    679. 

  679.                       '$parse', 'isecfn', 'Referencing Function in Angular expressions is disallowed! ' +
    680. 

  680.                       'Expression: {}.toString["constructor"]["a"] = 1');
    681. 

  681. 

  682.               scope.a = [];
    683. 

  683.               expect(function() {
    684. 

  684.                 scope.$eval('a.toString.constructor = 1', scope);
    685. 

  685.               }).toThrowMinErr(
    686. 

  686.                       '$parse', 'isecfld', 'Referencing "constructor" field in Angular expressions is disallowed! ' +
    687. 

  687.                       'Expression: a.toString.constructor = 1');
    688. 

  688.             });
    689. 

  689. 

  690. 

  691.             it('should NOT allow access to Function constructor that has been aliased', function() {
    692. 

  692.               scope.foo = { "bar": Function };
    693. 

  693.               expect(function() {
    694. 

  694.                 scope.$eval('foo["bar"]');
    695. 

  695.               }).toThrowMinErr(
    696. 

  696.                       '$parse', 'isecfn', 'Referencing Function in Angular expressions is disallowed! ' +
    697. 

  697.                       'Expression: foo["bar"]');
    698. 

  698. 

  699.             });
    700. 

  700. 

  701. 

  702.             it('should NOT allow access to Function constructor in getter', function() {
    703. 

  703.               expect(function() {
    704. 

  704.                 scope.$eval('{}.toString.constructor');
    705. 

  705.               }).toThrowMinErr(
    706. 

  706.                       '$parse', 'isecfld', 'Referencing "constructor" field in Angular expressions is disallowed! ' +
    707. 

  707.                       'Expression: {}.toString.constructor');
    708. 

  708.             });
    709. 

  709.           });
    710. 

  710. 

  711. 

  712.           describe('Window and $element/node', function() {
    713. 

  713.             it('should NOT allow access to the Window or DOM when indexing', inject(function($window, $document) {
    714. 

  714.               scope.wrap = {w: $window, d: $document};
    715. 

  715. 

  716.               expect(function() {
    717. 

  717.                 scope.$eval('wrap["w"]', scope);
    718. 

  718.               }).toThrowMinErr(
    719. 

  719.                       '$parse', 'isecwindow', 'Referencing the Window in Angular expressions is ' +
    720. 

  720.                       'disallowed! Expression: wrap["w"]');
    721. 

  721.               expect(function() {
    722. 

  722.                 scope.$eval('wrap["d"]', scope);
    723. 

  723.               }).toThrowMinErr(
    724. 

  724.                       '$parse', 'isecdom', 'Referencing DOM nodes in Angular expressions is ' +
    725. 

  725.                       'disallowed! Expression: wrap["d"]');
    726. 

  726.             }));
    727. 

  727. 

  728.             it('should NOT allow access to the Window or DOM returned from a function', inject(function($window, $document) {
    729. 

  729.               scope.getWin = valueFn($window);
    730. 

  730.               scope.getDoc = valueFn($document);
    731. 

  731. 

  732.               expect(function() {
    733. 

  733.                 scope.$eval('getWin()', scope);
    734. 

  734.               }).toThrowMinErr(
    735. 

  735.                       '$parse', 'isecwindow', 'Referencing the Window in Angular expressions is ' +
    736. 

  736.                       'disallowed! Expression: getWin()');
    737. 

  737.               expect(function() {
    738. 

  738.                 scope.$eval('getDoc()', scope);
    739. 

  739.               }).toThrowMinErr(
    740. 

  740.                       '$parse', 'isecdom', 'Referencing DOM nodes in Angular expressions is ' +
    741. 

  741.                       'disallowed! Expression: getDoc()');
    742. 

  742.             }));
    743. 

  743. 

  744.             it('should NOT allow calling functions on Window or DOM', inject(function($window, $document) {
    745. 

  745.               scope.a = {b: { win: $window, doc: $document }};
    746. 

  746.               expect(function() {
    747. 

  747.                 scope.$eval('a.b.win.alert(1)', scope);
    748. 

  748.               }).toThrowMinErr(
    749. 

  749.                       '$parse', 'isecwindow', 'Referencing the Window in Angular expressions is ' +
    750. 

  750.                       'disallowed! Expression: a.b.win.alert(1)');
    751. 

  751.               expect(function() {
    752. 

  752.                 scope.$eval('a.b.doc.on("click")', scope);
    753. 

  753.               }).toThrowMinErr(
    754. 

  754.                       '$parse', 'isecdom', 'Referencing DOM nodes in Angular expressions is ' +
    755. 

  755.                       'disallowed! Expression: a.b.doc.on("click")');
    756. 

  756.             }));
    757. 

  757.           });
    758. 

  758.         });
    759. 

  759. 

  760.         describe('overriding constructor', function() {
    761. 

  761.           it('should evaluate grouped expressions', function() {
    762. 

  762.             scope.foo = function foo() {
    763. 

  763.               return "foo";
    764. 

  764.             };
    765. 

  765.             // When not overridden, access should be restricted both by the dot operator and by the
    766. 

  766.             // index operator.
    767. 

  767.             expect(function() {
    768. 

  768.               scope.$eval('foo.constructor()', scope)
    769. 

  769.             }).toThrowMinErr(
    770. 

  770.                     '$parse', 'isecfld', 'Referencing "constructor" field in Angular expressions is disallowed! ' +
    771. 

  771.                     'Expression: foo.constructor()');
    772. 

  772.             expect(function() {
    773. 

  773.               scope.$eval('foo["constructor"]()', scope)
    774. 

  774.             }).toThrowMinErr(
    775. 

  775.                     '$parse', 'isecfn', 'Referencing Function in Angular expressions is disallowed! ' +
    776. 

  776.                     'Expression: foo["constructor"]()');
    777. 

  777. 

  778.             // User defined value assigned to constructor.
    779. 

  779.             scope.foo.constructor = function constructor() {
    780. 

  780.               return "custom constructor";
    781. 

  781.             };
    782. 

  782.             // Dot operator should still block it.
    783. 

  783.             expect(function() {
    784. 

  784.               scope.$eval('foo.constructor()', scope)
    785. 

  785.             }).toThrowMinErr(
    786. 

  786.                     '$parse', 'isecfld', 'Referencing "constructor" field in Angular expressions is disallowed! ' +
    787. 

  787.                     'Expression: foo.constructor()');
    788. 

  788.             // However, the index operator should allow it.
    789. 

  789.             expect(scope.$eval('foo["constructor"]()', scope)).toBe('custom constructor');
    790. 

  790.           });
    791. 

  791.         });
    792. 

  792. 

  793.         it('should call the function from the received instance and not from a new one', function() {
    794. 

  794.           var n = 0;
    795. 

  795.           scope.fn = function() {
    796. 

  796.             var c = n++;
    797. 

  797.             return { c: c, anotherFn: function() { return this.c == c; } };
    798. 

  798.           };
    799. 

  799.           expect(scope.$eval('fn().anotherFn()')).toBe(true);
    800. 

  800.         });
    801. 

  801. 

  802. 

  803.         it('should call the function once when it is part of the context', function() {
    804. 

  804.           var count = 0;
    805. 

  805.           scope.fn = function() {
    806. 

  806.             count++;
    807. 

  807.             return { anotherFn: function() { return "lucas"; } };
    808. 

  808.           };
    809. 

  809.           expect(scope.$eval('fn().anotherFn()')).toBe('lucas');
    810. 

  810.           expect(count).toBe(1);
    811. 

  811.         });
    812. 

  812. 

  813. 

  814.         it('should call the function once when it is not part of the context', function() {
    815. 

  815.           var count = 0;
    816. 

  816.           scope.fn = function() {
    817. 

  817.             count++;
    818. 

  818.             return function() { return 'lucas'; };
    819. 

  819.           };
    820. 

  820.           expect(scope.$eval('fn()()')).toBe('lucas');
    821. 

  821.           expect(count).toBe(1);
    822. 

  822.         });
    823. 

  823. 

  824. 

  825.         it('should call the function once when it is part of the context on assignments', function() {
    826. 

  826.           var count = 0;
    827. 

  827.           var element = {};
    828. 

  828.           scope.fn = function() {
    829. 

  829.             count++;
    830. 

  830.             return element;
    831. 

  831.           };
    832. 

  832.           expect(scope.$eval('fn().name = "lucas"')).toBe('lucas');
    833. 

  833.           expect(element.name).toBe('lucas');
    834. 

  834.           expect(count).toBe(1);
    835. 

  835.         });
    836. 

  836. 

  837. 

  838.         it('should call the function once when it is part of the context on array lookups', function() {
    839. 

  839.           var count = 0;
    840. 

  840.           var element = [];
    841. 

  841.           scope.fn = function() {
    842. 

  842.             count++;
    843. 

  843.             return element;
    844. 

  844.           };
    845. 

  845.           expect(scope.$eval('fn()[0] = "lucas"')).toBe('lucas');
    846. 

  846.           expect(element[0]).toBe('lucas');
    847. 

  847.           expect(count).toBe(1);
    848. 

  848.         });
    849. 

  849. 

  850. 

  851.         it('should call the function once when it is part of the context on array lookup function', function() {
    852. 

  852.           var count = 0;
    853. 

  853.           var element = [{anotherFn: function() { return 'lucas';} }];
    854. 

  854.           scope.fn = function() {
    855. 

  855.             count++;
    856. 

  856.             return element;
    857. 

  857.           };
    858. 

  858.           expect(scope.$eval('fn()[0].anotherFn()')).toBe('lucas');
    859. 

  859.           expect(count).toBe(1);
    860. 

  860.         });
    861. 

  861. 

  862. 

  863.         it('should call the function once when it is part of the context on property lookup function', function() {
    864. 

  864.           var count = 0;
    865. 

  865.           var element = {name: {anotherFn: function() { return 'lucas';} } };
    866. 

  866.           scope.fn = function() {
    867. 

  867.             count++;
    868. 

  868.             return element;
    869. 

  869.           };
    870. 

  870.           expect(scope.$eval('fn().name.anotherFn()')).toBe('lucas');
    871. 

  871.           expect(count).toBe(1);
    872. 

  872.         });
    873. 

  873. 

  874. 

  875.         it('should call the function once when it is part of a sub-expression', function() {
    876. 

  876.           var count = 0;
    877. 

  877.           scope.element = [{}];
    878. 

  878.           scope.fn = function() {
    879. 

  879.             count++;
    880. 

  880.             return 0;
    881. 

  881.           };
    882. 

  882.           expect(scope.$eval('element[fn()].name = "lucas"')).toBe('lucas');
    883. 

  883.           expect(scope.element[0].name).toBe('lucas');
    884. 

  884.           expect(count).toBe(1);
    885. 

  885.         });
    886. 

  886. 

  887. 

  888.         describe('assignable', function() {
    889. 

  889.           it('should expose assignment function', inject(function($parse) {
    890. 

  890.             var fn = $parse('a');
    891. 

  891.             expect(fn.assign).toBeTruthy();
    892. 

  892.             var scope = {};
    893. 

  893.             fn.assign(scope, 123);
    894. 

  894.             expect(scope).toEqual({a:123});
    895. 

  895.           }));
    896. 

  896.         });
    897. 

  897. 

  898. 

  899.         describe('locals', function() {
    900. 

  900.           it('should expose local variables', inject(function($parse) {
    901. 

  901.             expect($parse('a')({a: 0}, {a: 1})).toEqual(1);
    902. 

  902.             expect($parse('add(a,b)')({b: 1, add: function(a, b) { return a + b; }}, {a: 2})).toEqual(3);
    903. 

  903.           }));
    904. 

  904. 

  905.           it('should expose traverse locals', inject(function($parse) {
    906. 

  906.             expect($parse('a.b')({a: {b: 0}}, {a: {b:1}})).toEqual(1);
    907. 

  907.             expect($parse('a.b')({a: null}, {a: {b:1}})).toEqual(1);
    908. 

  908.             expect($parse('a.b')({a: {b: 0}}, {a: null})).toEqual(undefined);
    909. 

  909.             expect($parse('a.b.c')({a: null}, {a: {b: {c: 1}}})).toEqual(1);
    910. 

  910.           }));
    911. 

  911.         });
    912. 

  912. 

  913.         describe('literal', function() {
    914. 

  914.           it('should mark scalar value expressions as literal', inject(function($parse) {
    915. 

  915.             expect($parse('0').literal).toBe(true);
    916. 

  916.             expect($parse('"hello"').literal).toBe(true);
    917. 

  917.             expect($parse('true').literal).toBe(true);
    918. 

  918.             expect($parse('false').literal).toBe(true);
    919. 

  919.             expect($parse('null').literal).toBe(true);
    920. 

  920.             expect($parse('undefined').literal).toBe(true);
    921. 

  921.           }));
    922. 

  922. 

  923.           it('should mark array expressions as literal', inject(function($parse) {
    924. 

  924.             expect($parse('[]').literal).toBe(true);
    925. 

  925.             expect($parse('[1, 2, 3]').literal).toBe(true);
    926. 

  926.             expect($parse('[1, identifier]').literal).toBe(true);
    927. 

  927.           }));
    928. 

  928. 

  929.           it('should mark object expressions as literal', inject(function($parse) {
    930. 

  930.             expect($parse('{}').literal).toBe(true);
    931. 

  931.             expect($parse('{x: 1}').literal).toBe(true);
    932. 

  932.             expect($parse('{foo: bar}').literal).toBe(true);
    933. 

  933.           }));
    934. 

  934. 

  935.           it('should not mark function calls or operator expressions as literal', inject(function($parse) {
    936. 

  936.             expect($parse('1 + 1').literal).toBe(false);
    937. 

  937.             expect($parse('call()').literal).toBe(false);
    938. 

  938.             expect($parse('[].length').literal).toBe(false);
    939. 

  939.           }));
    940. 

  940.         });
    941. 

  941. 

  942.         describe('constant', function() {
    943. 

  943.           it('should mark scalar value expressions as constant', inject(function($parse) {
    944. 

  944.             expect($parse('12.3').constant).toBe(true);
    945. 

  945.             expect($parse('"string"').constant).toBe(true);
    946. 

  946.             expect($parse('true').constant).toBe(true);
    947. 

  947.             expect($parse('false').constant).toBe(true);
    948. 

  948.             expect($parse('null').constant).toBe(true);
    949. 

  949.             expect($parse('undefined').constant).toBe(true);
    950. 

  950.           }));
    951. 

  951. 

  952.           it('should mark arrays as constant if they only contain constant elements', inject(function($parse) {
    953. 

  953.             expect($parse('[]').constant).toBe(true);
    954. 

  954.             expect($parse('[1, 2, 3]').constant).toBe(true);
    955. 

  955.             expect($parse('["string", null]').constant).toBe(true);
    956. 

  956.             expect($parse('[[]]').constant).toBe(true);
    957. 

  957.             expect($parse('[1, [2, 3], {4: 5}]').constant).toBe(true);
    958. 

  958.           }));
    959. 

  959. 

  960.           it('should not mark arrays as constant if they contain any non-constant elements', inject(function($parse) {
    961. 

  961.             expect($parse('[foo]').constant).toBe(false);
    962. 

  962.             expect($parse('[x + 1]').constant).toBe(false);
    963. 

  963.             expect($parse('[bar[0]]').constant).toBe(false);
    964. 

  964.           }));
    965. 

  965. 

  966.           it('should mark complex expressions involving constant values as constant', inject(function($parse) {
    967. 

  967.             expect($parse('!true').constant).toBe(true);
    968. 

  968.             expect($parse('1 - 1').constant).toBe(true);
    969. 

  969.             expect($parse('"foo" + "bar"').constant).toBe(true);
    970. 

  970.             expect($parse('5 != null').constant).toBe(true);
    971. 

  971.             expect($parse('{standard: 4/3, wide: 16/9}').constant).toBe(true);
    972. 

  972.           }));
    973. 

  973. 

  974.           it('should not mark any expression involving variables or function calls as constant', inject(function($parse) {
    975. 

  975.             expect($parse('true.toString()').constant).toBe(false);
    976. 

  976.             expect($parse('foo(1, 2, 3)').constant).toBe(false);
    977. 

  977.             expect($parse('"name" + id').constant).toBe(false);
    978. 

  978.           }));
    979. 

  979.         });
    980. 

  980. 

  981.         describe('nulls in expressions', function() {
    982. 

  982.           // simpleGetterFn1
    983. 

  983.           it('should return null for `a` where `a` is null', inject(function($rootScope) {
    984. 

  984.             $rootScope.a = null;
    985. 

  985.             expect($rootScope.$eval('a')).toBe(null);
    986. 

  986.           }));
    987. 

  987. 

  988.           it('should return undefined for `a` where `a` is undefined', inject(function($rootScope) {
    989. 

  989.             expect($rootScope.$eval('a')).toBeUndefined();
    990. 

  990.           }));
    991. 

  991. 

  992.           // simpleGetterFn2
    993. 

  993.           it('should return undefined for properties of `null` constant', inject(function($rootScope) {
    994. 

  994.             expect($rootScope.$eval('null.a')).toBeUndefined();
    995. 

  995.           }));
    996. 

  996. 

  997.           it('should return undefined for properties of `null` values', inject(function($rootScope) {
    998. 

  998.             $rootScope.a = null;
    999. 

  999.             expect($rootScope.$eval('a.b')).toBeUndefined();
    1000. 

  1000.           }));
    1001. 

  1001. 

  1002.           it('should return null for `a.b` where `b` is null', inject(function($rootScope) {
    1003. 

  1003.             $rootScope.a = { b: null };
    1004. 

  1004.             expect($rootScope.$eval('a.b')).toBe(null);
    1005. 

  1005.           }));
    1006. 

  1006. 

  1007.           // cspSafeGetter && pathKeys.length < 6 || pathKeys.length > 2
    1008. 

  1008.           it('should return null for `a.b.c.d.e` where `e` is null', inject(function($rootScope) {
    1009. 

  1009.             $rootScope.a = { b: { c: { d: { e: null } } } };
    1010. 

  1010.             expect($rootScope.$eval('a.b.c.d.e')).toBe(null);
    1011. 

  1011.           }));
    1012. 

  1012. 

  1013.           it('should return undefined for `a.b.c.d.e` where `d` is null', inject(function($rootScope) {
    1014. 

  1014.             $rootScope.a = { b: { c: { d: null } } };
    1015. 

  1015.             expect($rootScope.$eval('a.b.c.d.e')).toBeUndefined();
    1016. 

  1016.           }));
    1017. 

  1017. 

  1018.           // cspSafeGetter || pathKeys.length > 6
    1019. 

  1019.           it('should return null for `a.b.c.d.e.f.g` where `g` is null', inject(function($rootScope) {
    1020. 

  1020.             $rootScope.a = { b: { c: { d: { e: { f: { g: null } } } } } };
    1021. 

  1021.             expect($rootScope.$eval('a.b.c.d.e.f.g')).toBe(null);
    1022. 

  1022.           }));
    1023. 

  1023. 

  1024.           it('should return undefined for `a.b.c.d.e.f.g` where `f` is null', inject(function($rootScope) {
    1025. 

  1025.             $rootScope.a = { b: { c: { d: { e: { f: null } } } } };
    1026. 

  1026.             expect($rootScope.$eval('a.b.c.d.e.f.g')).toBeUndefined();
    1027. 

  1027.           }));
    1028. 

  1028.         });
    1029. 

  1029.       });
    1030. 

  1030.     });
    1031. 

  1031.   });
    1032. 

  1032. 

  1033. 

  1034.   describe('promises', function() {
    1035. 

  1035. 

  1036.     var deferred, promise, q;
    1037. 

  1037. 

  1038.     describe('unwrapPromises setting', function () {
    1039. 

  1039. 

  1040.       beforeEach(inject(function($rootScope, $q) {
    1041. 

  1041.         scope = $rootScope;
    1042. 

  1042. 

  1043.         $rootScope.$apply(function() {
    1044. 

  1044.           deferred = $q.defer();
    1045. 

  1045.           deferred.resolve('Bobo');
    1046. 

  1046.           promise = deferred.promise;
    1047. 

  1047.         });
    1048. 

  1048.       }));
    1049. 

  1049. 

  1050.       it('should not unwrap promises by default', inject(function ($parse) {
    1051. 

  1051.         scope.person = promise;
    1052. 

  1052.         scope.things = {person: promise};
    1053. 

  1053.         scope.getPerson = function () { return promise; };
    1054. 

  1054. 

  1055.         var getter = $parse('person');
    1056. 

  1056.         var propGetter = $parse('things.person');
    1057. 

  1057.         var fnGetter = $parse('getPerson()');
    1058. 

  1058. 

  1059.         expect(getter(scope)).toBe(promise);
    1060. 

  1060.         expect(propGetter(scope)).toBe(promise);
    1061. 

  1061.         expect(fnGetter(scope)).toBe(promise);
    1062. 

  1062.       }));
    1063. 

  1063.     });
    1064. 

  1064. 

  1065. 

  1066.     forEach([true, false], function(cspEnabled) {
    1067. 

  1067. 

  1068.       describe('promise logging (csp:' + cspEnabled + ')', function() {
    1069. 

  1069. 

  1070.         var $log;
    1071. 

  1071.         var PROMISE_WARNING_REGEXP = /\[\$parse\] Promise found in the expression `[^`]+`. Automatic unwrapping of promises in Angular expressions is deprecated\./;
    1072. 

    1073. 

  1073.         beforeEach(module(function($parseProvider) {
    1074. 

  1074.           $parseProvider.unwrapPromises(true);
    1075. 

  1075.         }));
    1076. 

    1077. 

  1077.         beforeEach(inject(function($rootScope, $q, _$log_) {
    1078. 

  1078.           scope = $rootScope;
    1079. 

    1080. 

  1080.           $rootScope.$apply(function() {
    1081. 

  1081.             deferred = $q.defer();
    1082. 

  1082.             deferred.resolve('Bobo');
    1083. 

  1083.             promise = deferred.promise;
    1084. 

  1084.           });
    1085. 

    1086. 

  1086.           $log = _$log_;
    1087. 

  1087.         }));
    1088. 

    1089. 

  1089.         it('should log warnings by default', function() {
    1090. 

  1090.           scope.person = promise;
    1091. 

  1091.           scope.$eval('person');
    1092. 

  1092.           expect($log.warn.logs.pop()).toEqual(['[$parse] Promise found in the expression `person`. ' +
    1093. 

  1093.               'Automatic unwrapping of promises in Angular expressions is deprecated.']);
    1094. 

  1094.         });
    1095. 

    1096. 

    1097. 

  1097.         it('should log warnings for deep promises', function() {
    1098. 

  1098.           scope.car = {wheel: {disc: promise}};
    1099. 

  1099.           scope.$eval('car.wheel.disc.pad');
    1100. 

  1100.           expect($log.warn.logs.pop()).toMatch(PROMISE_WARNING_REGEXP);
    1101. 

  1101.         });
    1102. 

    1103. 

    1104. 

  1104.         it('should log warnings for setters', function() {
    1105. 

  1105.           scope.person = promise;
    1106. 

  1106.           scope.$eval('person.name = "Bubu"');
    1107. 

  1107.           expect($log.warn.logs.pop()).toMatch(PROMISE_WARNING_REGEXP);
    1108. 

  1108.         });
    1109. 

    1110. 

    1111. 

  1111.         it('should log only a single warning for each expression', function() {
    1112. 

  1112.           scope.person1 = promise;
    1113. 

  1113.           scope.person2 = promise;
    1114. 

    1115. 

  1115.           scope.$eval('person1');
    1116. 

  1116.           scope.$eval('person1');
    1117. 

  1117.           expect($log.warn.logs.pop()).toMatch(/`person1`/);
    1118. 

  1118.           expect($log.warn.logs).toEqual([]);
    1119. 

    1120. 

  1120.           scope.$eval('person1');
    1121. 

  1121.           scope.$eval('person2');
    1122. 

  1122.           scope.$eval('person1');
    1123. 

  1123.           scope.$eval('person2');
    1124. 

  1124.           expect($log.warn.logs.pop()).toMatch(/`person2`/);
    1125. 

  1125.           expect($log.warn.logs).toEqual([]);
    1126. 

  1126.         });
    1127. 

    1128. 

    1129. 

  1129.         it('should log warning for complex expressions', function() {
    1130. 

  1130.           scope.person1 = promise;
    1131. 

  1131.           scope.person2 = promise;
    1132. 

    1133. 

  1133.           scope.$eval('person1 + person2');
    1134. 

  1134.           expect($log.warn.logs.pop()).toMatch(/`person1 \+ person2`/);
    1135. 

  1135.           expect($log.warn.logs).toEqual([]);
    1136. 

  1136.         });
    1137. 

  1137.       });
    1138. 

  1138.     });
    1139. 

    1140. 

    1141. 

  1141.     forEach([true, false], function(cspEnabled) {
    1142. 

    1143. 

  1143.       describe('csp ' + cspEnabled, function() {
    1144. 

    1145. 

  1145.         beforeEach(module(function($parseProvider) {
    1146. 

  1146.           $parseProvider.unwrapPromises(true);
    1147. 

  1147.           $parseProvider.logPromiseWarnings(false);
    1148. 

  1148.         }));
    1149. 

    1150. 

    1151. 

  1151.         beforeEach(inject(function($rootScope, $sniffer, $q) {
    1152. 

  1152.           scope = $rootScope;
    1153. 

  1153.           $sniffer.csp = cspEnabled;
    1154. 

    1155. 

  1155.           q = $q;
    1156. 

  1156.           deferred = q.defer();
    1157. 

  1157.           promise = deferred.promise;
    1158. 

  1158.         }));
    1159. 

    1160. 

    1161. 

  1161.         describe('{{promise}}', function() {
    1162. 

  1162.           it('should evaluated resolved promise and get its value', function() {
    1163. 

  1163.             deferred.resolve('hello!');
    1164. 

  1164.             scope.greeting = promise;
    1165. 

  1165.             expect(scope.$eval('greeting')).toBe(undefined);
    1166. 

  1166.             scope.$digest();
    1167. 

  1167.             expect(scope.$eval('greeting')).toBe('hello!');
    1168. 

  1168.           });
    1169. 

    1170. 

    1171. 

  1171.           it('should evaluated rejected promise and ignore the rejection reason', function() {
    1172. 

  1172.             deferred.reject('sorry');
    1173. 

  1173.             scope.greeting = promise;
    1174. 

  1174.             expect(scope.$eval('greeting')).toBe(undefined);
    1175. 

  1175.             scope.$digest();
    1176. 

  1176.             expect(scope.$eval('greeting')).toBe(undefined);
    1177. 

  1177.           });
    1178. 

    1179. 

    1180. 

  1180.           it('should evaluate a promise and eventualy get its value', function() {
    1181. 

  1181.             scope.greeting = promise;
    1182. 

  1182.             expect(scope.$eval('greeting')).toBe(undefined);
    1183. 

    1184. 

  1184.             scope.$digest();
    1185. 

  1185.             expect(scope.$eval('greeting')).toBe(undefined);
    1186. 

    1187. 

  1187.             deferred.resolve('hello!');
    1188. 

  1188.             expect(scope.$eval('greeting')).toBe(undefined);
    1189. 

  1189.             scope.$digest();
    1190. 

  1190.             expect(scope.$eval('greeting')).toBe('hello!');
    1191. 

  1191.           });
    1192. 

    1193. 

    1194. 

  1194.           it('should evaluate a promise and eventualy ignore its rejection', function() {
    1195. 

  1195.             scope.greeting = promise;
    1196. 

  1196.             expect(scope.$eval('greeting')).toBe(undefined);
    1197. 

    1198. 

  1198.             scope.$digest();
    1199. 

  1199.             expect(scope.$eval('greeting')).toBe(undefined);
    1200. 

    1201. 

  1201.             deferred.reject('sorry');
    1202. 

  1202.             expect(scope.$eval('greeting')).toBe(undefined);
    1203. 

  1203.             scope.$digest();
    1204. 

  1204.             expect(scope.$eval('greeting')).toBe(undefined);
    1205. 

  1205.           });
    1206. 

    1207. 

    1208. 

  1208.           describe('assignment into promises', function() {
    1209. 

  1209.             // This behavior is analogous to assignments to non-promise values
    1210. 

  1210.             // that are lazily set on the scope.
    1211. 

  1211.             it('should evaluate a resolved object promise and set its value', inject(function($parse) {
    1212. 

  1212.               scope.person = promise;
    1213. 

  1213.               deferred.resolve({'name': 'Bill Gates'});
    1214. 

    1215. 

  1215.               var getter = $parse('person.name', { unwrapPromises: true });
    1216. 

  1216.               expect(getter(scope)).toBe(undefined);
    1217. 

    1218. 

  1218.               scope.$digest();
    1219. 

  1219.               expect(getter(scope)).toBe('Bill Gates');
    1220. 

  1220.               getter.assign(scope, 'Warren Buffet');
    1221. 

  1221.               expect(getter(scope)).toBe('Warren Buffet');
    1222. 

  1222.             }));
    1223. 

    1224. 

    1225. 

  1225.             it('should evaluate a resolved primitive type promise and set its value', inject(function($parse) {
    1226. 

  1226.               scope.greeting = promise;
    1227. 

  1227.               deferred.resolve('Salut!');
    1228. 

    1229. 

  1229.               var getter = $parse('greeting', { unwrapPromises: true });
    1230. 

  1230.               expect(getter(scope)).toBe(undefined);
    1231. 

    1232. 

  1232.               scope.$digest();
    1233. 

  1233.               expect(getter(scope)).toBe('Salut!');
    1234. 

    1235. 

  1235.               getter.assign(scope, 'Bonjour');
    1236. 

  1236.               expect(getter(scope)).toBe('Bonjour');
    1237. 

  1237.             }));
    1238. 

    1239. 

    1240. 

  1240.             it('should evaluate an unresolved promise and set and remember its value', inject(function($parse) {
    1241. 

  1241.               scope.person = promise;
    1242. 

    1243. 

  1243.               var getter = $parse('person.name', { unwrapPromises: true });
    1244. 

  1244.               expect(getter(scope)).toBe(undefined);
    1245. 

    1246. 

  1246.               scope.$digest();
    1247. 

  1247.               expect(getter(scope)).toBe(undefined);
    1248. 

    1249. 

  1249.               getter.assign(scope, 'Bonjour');
    1250. 

  1250.               scope.$digest();
    1251. 

    1252. 

  1252.               expect(getter(scope)).toBe('Bonjour');
    1253. 

    1254. 

  1254.               var c1Getter = $parse('person.A.B.C1', { unwrapPromises: true });
    1255. 

  1255.               scope.$digest();
    1256. 

  1256.               expect(c1Getter(scope)).toBe(undefined);
    1257. 

  1257.               c1Getter.assign(scope, 'c1_value');
    1258. 

  1258.               scope.$digest();
    1259. 

  1259.               expect(c1Getter(scope)).toBe('c1_value');
    1260. 

    1261. 

  1261.               // Set another property on the person.A.B
    1262. 

  1262.               var c2Getter = $parse('person.A.B.C2', { unwrapPromises: true });
    1263. 

  1263.               scope.$digest();
    1264. 

  1264.               expect(c2Getter(scope)).toBe(undefined);
    1265. 

  1265.               c2Getter.assign(scope, 'c2_value');
    1266. 

  1266.               scope.$digest();
    1267. 

  1267.               expect(c2Getter(scope)).toBe('c2_value');
    1268. 

    1269. 

  1269.               // c1 should be unchanged.
    1270. 

  1270.               expect($parse('person.A', { unwrapPromises: true })(scope)).toEqual(
    1271. 

  1271.                   {B: {C1: 'c1_value', C2: 'c2_value'}});
    1272. 

  1272.             }));
    1273. 

    1274. 

    1275. 

  1275.             it('should evaluate a res…
    1276.

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