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comparison: js/src/jit-test/tests/basic/string-startswith.js

js/src/jit-test/tests/basic/string-startswith.js

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1 /*
2 * Copyright (c) 2013 Mathias Bynens. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 */
22
23 function assertThrows(fun, errorType) {
24 try {
25 fun();
26 assertEq(true, false, "Expected error, but none was thrown");
27 } catch (e) {
28 assertEq(e instanceof errorType, true, "Wrong error type thrown");
29 }
30 }
31
32 Object.prototype[1] = 2; // try to break `arguments[1]`
33
34 assertEq(String.prototype.startsWith.length, 1);
35 assertEq(String.prototype.propertyIsEnumerable('startsWith'), false);
36
37 assertEq('undefined'.startsWith(), true);
38 assertEq('undefined'.startsWith(undefined), true);
39 assertEq('undefined'.startsWith(null), false);
40 assertEq('null'.startsWith(), false);
41 assertEq('null'.startsWith(undefined), false);
42 assertEq('null'.startsWith(null), true);
43
44 assertEq('abc'.startsWith(), false);
45 assertEq('abc'.startsWith(''), true);
46 assertEq('abc'.startsWith('\0'), false);
47 assertEq('abc'.startsWith('a'), true);
48 assertEq('abc'.startsWith('b'), false);
49 assertEq('abc'.startsWith('ab'), true);
50 assertEq('abc'.startsWith('bc'), false);
51 assertEq('abc'.startsWith('abc'), true);
52 assertEq('abc'.startsWith('bcd'), false);
53 assertEq('abc'.startsWith('abcd'), false);
54 assertEq('abc'.startsWith('bcde'), false);
55
56 assertEq('abc'.startsWith('', NaN), true);
57 assertEq('abc'.startsWith('\0', NaN), false);
58 assertEq('abc'.startsWith('a', NaN), true);
59 assertEq('abc'.startsWith('b', NaN), false);
60 assertEq('abc'.startsWith('ab', NaN), true);
61 assertEq('abc'.startsWith('bc', NaN), false);
62 assertEq('abc'.startsWith('abc', NaN), true);
63 assertEq('abc'.startsWith('bcd', NaN), false);
64 assertEq('abc'.startsWith('abcd', NaN), false);
65 assertEq('abc'.startsWith('bcde', NaN), false);
66
67 assertEq('abc'.startsWith('', false), true);
68 assertEq('abc'.startsWith('\0', false), false);
69 assertEq('abc'.startsWith('a', false), true);
70 assertEq('abc'.startsWith('b', false), false);
71 assertEq('abc'.startsWith('ab', false), true);
72 assertEq('abc'.startsWith('bc', false), false);
73 assertEq('abc'.startsWith('abc', false), true);
74 assertEq('abc'.startsWith('bcd', false), false);
75 assertEq('abc'.startsWith('abcd', false), false);
76 assertEq('abc'.startsWith('bcde', false), false);
77
78 assertEq('abc'.startsWith('', undefined), true);
79 assertEq('abc'.startsWith('\0', undefined), false);
80 assertEq('abc'.startsWith('a', undefined), true);
81 assertEq('abc'.startsWith('b', undefined), false);
82 assertEq('abc'.startsWith('ab', undefined), true);
83 assertEq('abc'.startsWith('bc', undefined), false);
84 assertEq('abc'.startsWith('abc', undefined), true);
85 assertEq('abc'.startsWith('bcd', undefined), false);
86 assertEq('abc'.startsWith('abcd', undefined), false);
87 assertEq('abc'.startsWith('bcde', undefined), false);
88
89 assertEq('abc'.startsWith('', null), true);
90 assertEq('abc'.startsWith('\0', null), false);
91 assertEq('abc'.startsWith('a', null), true);
92 assertEq('abc'.startsWith('b', null), false);
93 assertEq('abc'.startsWith('ab', null), true);
94 assertEq('abc'.startsWith('bc', null), false);
95 assertEq('abc'.startsWith('abc', null), true);
96 assertEq('abc'.startsWith('bcd', null), false);
97 assertEq('abc'.startsWith('abcd', null), false);
98 assertEq('abc'.startsWith('bcde', null), false);
99
100 assertEq('abc'.startsWith('', -Infinity), true);
101 assertEq('abc'.startsWith('\0', -Infinity), false);
102 assertEq('abc'.startsWith('a', -Infinity), true);
103 assertEq('abc'.startsWith('b', -Infinity), false);
104 assertEq('abc'.startsWith('ab', -Infinity), true);
105 assertEq('abc'.startsWith('bc', -Infinity), false);
106 assertEq('abc'.startsWith('abc', -Infinity), true);
107 assertEq('abc'.startsWith('bcd', -Infinity), false);
108 assertEq('abc'.startsWith('abcd', -Infinity), false);
109 assertEq('abc'.startsWith('bcde', -Infinity), false);
110
111 assertEq('abc'.startsWith('', -1), true);
112 assertEq('abc'.startsWith('\0', -1), false);
113 assertEq('abc'.startsWith('a', -1), true);
114 assertEq('abc'.startsWith('b', -1), false);
115 assertEq('abc'.startsWith('ab', -1), true);
116 assertEq('abc'.startsWith('bc', -1), false);
117 assertEq('abc'.startsWith('abc', -1), true);
118 assertEq('abc'.startsWith('bcd', -1), false);
119 assertEq('abc'.startsWith('abcd', -1), false);
120 assertEq('abc'.startsWith('bcde', -1), false);
121
122 assertEq('abc'.startsWith('', -0), true);
123 assertEq('abc'.startsWith('\0', -0), false);
124 assertEq('abc'.startsWith('a', -0), true);
125 assertEq('abc'.startsWith('b', -0), false);
126 assertEq('abc'.startsWith('ab', -0), true);
127 assertEq('abc'.startsWith('bc', -0), false);
128 assertEq('abc'.startsWith('abc', -0), true);
129 assertEq('abc'.startsWith('bcd', -0), false);
130 assertEq('abc'.startsWith('abcd', -0), false);
131 assertEq('abc'.startsWith('bcde', -0), false);
132
133 assertEq('abc'.startsWith('', +0), true);
134 assertEq('abc'.startsWith('\0', +0), false);
135 assertEq('abc'.startsWith('a', +0), true);
136 assertEq('abc'.startsWith('b', +0), false);
137 assertEq('abc'.startsWith('ab', +0), true);
138 assertEq('abc'.startsWith('bc', +0), false);
139 assertEq('abc'.startsWith('abc', +0), true);
140 assertEq('abc'.startsWith('bcd', +0), false);
141 assertEq('abc'.startsWith('abcd', +0), false);
142 assertEq('abc'.startsWith('bcde', +0), false);
143
144 assertEq('abc'.startsWith('', 1), true);
145 assertEq('abc'.startsWith('\0', 1), false);
146 assertEq('abc'.startsWith('a', 1), false);
147 assertEq('abc'.startsWith('b', 1), true);
148 assertEq('abc'.startsWith('ab', 1), false);
149 assertEq('abc'.startsWith('bc', 1), true);
150 assertEq('abc'.startsWith('abc', 1), false);
151 assertEq('abc'.startsWith('bcd', 1), false);
152 assertEq('abc'.startsWith('abcd', 1), false);
153 assertEq('abc'.startsWith('bcde', 1), false);
154
155 assertEq('abc'.startsWith('', +Infinity), true);
156 assertEq('abc'.startsWith('\0', +Infinity), false);
157 assertEq('abc'.startsWith('a', +Infinity), false);
158 assertEq('abc'.startsWith('b', +Infinity), false);
159 assertEq('abc'.startsWith('ab', +Infinity), false);
160 assertEq('abc'.startsWith('bc', +Infinity), false);
161 assertEq('abc'.startsWith('abc', +Infinity), false);
162 assertEq('abc'.startsWith('bcd', +Infinity), false);
163 assertEq('abc'.startsWith('abcd', +Infinity), false);
164 assertEq('abc'.startsWith('bcde', +Infinity), false);
165
166 assertEq('abc'.startsWith('', true), true);
167 assertEq('abc'.startsWith('\0', true), false);
168 assertEq('abc'.startsWith('a', true), false);
169 assertEq('abc'.startsWith('b', true), true);
170 assertEq('abc'.startsWith('ab', true), false);
171 assertEq('abc'.startsWith('bc', true), true);
172 assertEq('abc'.startsWith('abc', true), false);
173 assertEq('abc'.startsWith('bcd', true), false);
174 assertEq('abc'.startsWith('abcd', true), false);
175 assertEq('abc'.startsWith('bcde', true), false);
176
177 assertEq('abc'.startsWith('', 'x'), true);
178 assertEq('abc'.startsWith('\0', 'x'), false);
179 assertEq('abc'.startsWith('a', 'x'), true);
180 assertEq('abc'.startsWith('b', 'x'), false);
181 assertEq('abc'.startsWith('ab', 'x'), true);
182 assertEq('abc'.startsWith('bc', 'x'), false);
183 assertEq('abc'.startsWith('abc', 'x'), true);
184 assertEq('abc'.startsWith('bcd', 'x'), false);
185 assertEq('abc'.startsWith('abcd', 'x'), false);
186 assertEq('abc'.startsWith('bcde', 'x'), false);
187
188 assertEq('[a-z]+(bar)?'.startsWith('[a-z]+'), true);
189 assertThrows(function() { '[a-z]+(bar)?'.startsWith(/[a-z]+/); }, TypeError);
190 assertEq('[a-z]+(bar)?'.startsWith('(bar)?', 6), true);
191 assertThrows(function() { '[a-z]+(bar)?'.startsWith(/(bar)?/); }, TypeError);
192 assertThrows(function() { '[a-z]+/(bar)?/'.startsWith(/(bar)?/); }, TypeError);
193 var global = newGlobal();
194 global.eval('this.re = /(bar)?/');
195 assertThrows(function() { '[a-z]+/(bar)?/'.startsWith(global.re); }, TypeError);
196
197 // http://mathiasbynens.be/notes/javascript-unicode#poo-test
198 var string = 'I\xF1t\xEBrn\xE2ti\xF4n\xE0liz\xE6ti\xF8n\u2603\uD83D\uDCA9';
199 assertEq(string.startsWith(''), true);
200 assertEq(string.startsWith('\xF1t\xEBr'), false);
201 assertEq(string.startsWith('\xF1t\xEBr', 1), true);
202 assertEq(string.startsWith('\xE0liz\xE6'), false);
203 assertEq(string.startsWith('\xE0liz\xE6', 11), true);
204 assertEq(string.startsWith('\xF8n\u2603\uD83D\uDCA9'), false);
205 assertEq(string.startsWith('\xF8n\u2603\uD83D\uDCA9', 18), true);
206 assertEq(string.startsWith('\u2603'), false);
207 assertEq(string.startsWith('\u2603', 20), true);
208 assertEq(string.startsWith('\uD83D\uDCA9'), false);
209 assertEq(string.startsWith('\uD83D\uDCA9', 21), true);
210
211 assertThrows(function() { String.prototype.startsWith.call(undefined); }, TypeError);
212 assertThrows(function() { String.prototype.startsWith.call(undefined, 'b'); }, TypeError);
213 assertThrows(function() { String.prototype.startsWith.call(undefined, 'b', 4); }, TypeError);
214 assertThrows(function() { String.prototype.startsWith.call(null); }, TypeError);
215 assertThrows(function() { String.prototype.startsWith.call(null, 'b'); }, TypeError);
216 assertThrows(function() { String.prototype.startsWith.call(null, 'b', 4); }, TypeError);
217 assertEq(String.prototype.startsWith.call(42, '2'), false);
218 assertEq(String.prototype.startsWith.call(42, '4'), true);
219 assertEq(String.prototype.startsWith.call(42, 'b', 4), false);
220 assertEq(String.prototype.startsWith.call(42, '2', 1), true);
221 assertEq(String.prototype.startsWith.call(42, '2', 4), false);
222 assertEq(String.prototype.startsWith.call({ 'toString': function() { return 'abc'; } }, 'b', 0), false);
223 assertEq(String.prototype.startsWith.call({ 'toString': function() { return 'abc'; } }, 'b', 1), true);
224 assertEq(String.prototype.startsWith.call({ 'toString': function() { return 'abc'; } }, 'b', 2), false);
225 assertThrows(function() { String.prototype.startsWith.call({ 'toString': function() { throw RangeError(); } }, /./); }, RangeError);
226 assertThrows(function() { String.prototype.startsWith.call({ 'toString': function() { return 'abc'; } }, /./); }, TypeError);
227
228 assertThrows(function() { String.prototype.startsWith.apply(undefined); }, TypeError);
229 assertThrows(function() { String.prototype.startsWith.apply(undefined, ['b']); }, TypeError);
230 assertThrows(function() { String.prototype.startsWith.apply(undefined, ['b', 4]); }, TypeError);
231 assertThrows(function() { String.prototype.startsWith.apply(null); }, TypeError);
232 assertThrows(function() { String.prototype.startsWith.apply(null, ['b']); }, TypeError);
233 assertThrows(function() { String.prototype.startsWith.apply(null, ['b', 4]); }, TypeError);
234 assertEq(String.prototype.startsWith.apply(42, ['2']), false);
235 assertEq(String.prototype.startsWith.apply(42, ['4']), true);
236 assertEq(String.prototype.startsWith.apply(42, ['b', 4]), false);
237 assertEq(String.prototype.startsWith.apply(42, ['2', 1]), true);
238 assertEq(String.prototype.startsWith.apply(42, ['2', 4]), false);
239 assertEq(String.prototype.startsWith.apply({ 'toString': function() { return 'abc'; } }, ['b', 0]), false);
240 assertEq(String.prototype.startsWith.apply({ 'toString': function() { return 'abc'; } }, ['b', 1]), true);
241 assertEq(String.prototype.startsWith.apply({ 'toString': function() { return 'abc'; } }, ['b', 2]), false);
242 assertThrows(function() { String.prototype.startsWith.apply({ 'toString': function() { throw RangeError(); } }, [/./]); }, RangeError);
243 assertThrows(function() { String.prototype.startsWith.apply({ 'toString': function() { return 'abc'; } }, [/./]); }, TypeError);

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