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| 1 if (self.importScripts) |
| 2 importScripts('../../fast/js/resources/js-test-pre.js'); |
| 3 |
| 4 description("Tests crypto.randomValues."); |
| 5 |
| 6 if (!self.ArrayBuffer) |
| 7 debug("This test requres ArrayBuffers to run!"); |
| 8 |
| 9 shouldBe("'crypto' in self", "true"); |
| 10 shouldBe("'getRandomValues' in self.crypto", "true"); |
| 11 |
| 12 // Although the spec defines Crypto in terms of "RandomSource", it is NOT |
| 13 // inheritance. The RandomSource interface should not be visible to |
| 14 // javascript. |
| 15 shouldBe("self.crypto.__proto__.hasOwnProperty('getRandomValues')", "true"); |
| 16 |
| 17 try { |
| 18 // NOTE: This test is flaky. If we ran this test every second since the |
| 19 // beginning of the universe, on average, it would have failed |
| 20 // 2^{-748} times. |
| 21 |
| 22 var reference = new Uint8Array(100); |
| 23 var sample = new Uint8Array(100); |
| 24 |
| 25 crypto.getRandomValues(reference); |
| 26 crypto.getRandomValues(sample); |
| 27 |
| 28 var matchingBytes = 0; |
| 29 |
| 30 for (var i = 0; i < reference.length; i++) { |
| 31 if (reference[i] == sample[i]) |
| 32 matchingBytes++; |
| 33 } |
| 34 |
| 35 shouldBe("matchingBytes < 100", "true"); |
| 36 } catch(ex) { |
| 37 debug(ex); |
| 38 } |
| 39 |
| 40 finishJSTest(); |
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