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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo
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Roy Tam
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dom/tests/mochitest/crypto/test_getRandomValues.html
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212
dom/tests/mochitest/crypto/test_getRandomValues.html
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<!DOCTYPE HTML>
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<html><head>
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<title>Test window.crypto.getRandomValues</title>
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<script type="text/javascript" src="/MochiKit/packed.js"></script>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body onload="onWindowLoad()">
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<script class="testbody" type="text/javascript">
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SimpleTest.waitForExplicitFinish();
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var testData = [ { len: 32, type: "Int8", pass: true },
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{ len: 32, type: "Int16", pass: true },
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{ len: 32, type: "Int32", pass: true },
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{ len: 32, type: "Uint8", pass: true },
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{ len: 32, type: "Uint16", pass: true },
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{ len: 32, type: "Uint32", pass: true },
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{ len: 65536, type: "Uint8", pass: true },
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{ len: 32, type: "Uint8Clamped", pass: true },
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{ len: 65537, type: "Uint8", pass: false },
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{ len: 32, type: "Float32", pass: false },
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{ len: 32, type: "Float64", pass: false } ];
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var testCount = 0;
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function testNsCryptoGetRandomValues(aLength, aType)
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{
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var arrayTypes = {
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Int8: Int8Array,
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Int16: Int16Array,
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Int32: Int32Array,
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Uint8: Uint8Array,
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Uint16: Uint16Array,
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Uint32: Uint32Array,
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Float32: Float32Array,
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Float64: Float64Array,
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Uint8Clamped: Uint8ClampedArray,
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};
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testCount++;
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var buf = new ArrayBuffer(aLength);
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var arBuf = new arrayTypes[aType](buf);
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var pass = false;
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var b = window.crypto.getRandomValues(arBuf);
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ok(b === arBuf, "ArrayBuffer result is argument buffer");
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for (var i = 0; i < arBuf.length; i++) {
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if (arBuf.length > 6) {
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// XXXddahl: THIS MIGHT FAIL EVERY FULL MOON, SORRY QA!!!
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if (arBuf[i] != 0) {
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pass = true;
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break;
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}
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}
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else {
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pass = true;
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}
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}
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is(pass, true, "Non-zero result: " + i + " found in the " + aType + ": " + aLength + " ArrayBufferView");
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}
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function onWindowLoad()
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{
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window.removeEventListener("load", onWindowLoad, false);
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var failedWithCorrectError = false;
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try {
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for (var i = 0; i < testData.length; i++) {
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if (testData[i].pass) {
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try {
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testNsCryptoGetRandomValues(testData[i].len, testData[i].type, testData[i].pass);
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}
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catch (ex) {
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ok(false, "testNsCryptoGetRandomValues failed, test should have passed: " + testData[i].type);
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}
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}
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else {
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// failing tests are dealt with here
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if (i == 8) {
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try {
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testNsCryptoGetRandomValues(testData[i].len, testData[i].type, testData[i].pass);
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}
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catch (ex) {
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todo("QuotaExceededError" in window && ex instanceof QuotaExceededError,
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"Exception was the correct type");
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failedWithCorrectError = ex.toString().search(/QUOTA_EXCEEDED_ERR/);
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ok(failedWithCorrectError, "Extended length array buffer fails, NS_ERROR_DOM_QUOTA_EXCEEDED_ERR thrown");
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}
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} // 8
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if (i == 9) {
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try {
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testNsCryptoGetRandomValues(testData[i].len, testData[i].type, testData[i].pass);
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}
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catch (ex) {
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failedWithCorrectError = ex.toString().search(/TYPE_MISMATCH_ERR/);
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ok(failedWithCorrectError,
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"Expected TYPE_MISMATCH_ERR: Float32Array is not valid, got " + ex + ".");
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}
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} // 9
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if (i == 10) {
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try {
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testNsCryptoGetRandomValues(testData[i].len, testData[i].type, testData[i].pass);
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}
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catch (ex) {
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failedWithCorrectError = ex.toString().search(/TYPE_MISMATCH_ERR/);
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ok(failedWithCorrectError,
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"Expected TYPE_MISMATCH_ERR: Float64Array is not valid, got " + ex + ".");
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}
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}
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}
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} // end main for loop
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}
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catch (ex) {
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ok(false, "Unexpected Error: " + ex);
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}
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// Count the tests in the testData array
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ok(testCount == 11, "11 tests run via testData");
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// Test a null argument
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try {
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window.crypto.getRandomValues(null);
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}
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catch (ex) {
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var test = ex.toString().search(/1003|TypeError/);
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ok((test > -1), "Expected TYPE_ERR, got " + ex + ".");
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}
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// Test a zero-length buffer view
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try {
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var a = new Int8Array(0);
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window.crypto.getRandomValues(a);
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ok(a[0] === undefined, "The array buffer is unchanged, still 0 length");
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}
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catch (ex) {
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ok(false, "A zero-length array buffer view should not fail");
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}
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// Test a one-length buffer view
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var randomVal = 0;
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// The probability of getRandomValues generating a zero value is 1/256 so we
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// run this in a loop until it returns a non-zero value to guard against
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// false failures
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do {
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try {
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var a = new Uint8Array(1);
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var b = window.crypto.getRandomValues(a);
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randomVal = a[0];
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ok(a === b, "ArrayBuffer result is argument buffer");
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}
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catch (ex) {
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ok(false, "A one-length array buffer view should not fail");
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}
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}
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while (randomVal == 0);
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ok(randomVal !== 0, "The array buffer eventually had one random value");
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// Test a 16 byte length buffer
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var testConfig = { len: 16, type: "Int8", pass: true };
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testNsCryptoGetRandomValues(testConfig.len,
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testConfig.type,
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testConfig.pass);
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// Test a 31 byte length buffer
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testConfig = { len: 31, type: "Int8", pass: true };
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testNsCryptoGetRandomValues(testConfig.len,
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testConfig.type,
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testConfig.pass);
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// Test a 33 byte length buffer
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testConfig = { len: 33, type: "Int8", pass: true };
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testNsCryptoGetRandomValues(testConfig.len,
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testConfig.type,
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testConfig.pass);
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// Test a range of an array buffer view
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var buffer = new ArrayBuffer(32);
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var view = new Int8Array(buffer, 0, 16);
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var view2 = new Int8Array(buffer, 16, 16);
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for (var i = 0; i < view2.byteLength; i++) {
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view2[i] = 1;
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}
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var b = window.crypto.getRandomValues(view);
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ok(b === view, "ArrayBuffer result is argument buffer");
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for (var i = 0; i < view.byteLength; i++) {
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is(view2[i], 1, "view2 is unchanged");
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}
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// test an offset view
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var result = false;
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var b = window.crypto.getRandomValues(view2);
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for (var i = 0; i < view2.length; i++) {
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if (view2[i] != 1) {
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result = true;
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break;
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}
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}
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ok(result, "view2 has been updated correctly");
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ok(b === view2, "ArrayBuffer result is argument buffer");
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// test the return value
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buffer = new ArrayBuffer(32);
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view = new Int8Array(buffer, 0, 16);
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var retval = window.crypto.getRandomValues(view);
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ok(view === retval, "The view and return value are the same");
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SimpleTest.finish();
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}
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</script>
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</body></html>
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