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