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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /WebCryptoAPI/getRandomValues.any.html - WPT Dashboard Interop Dashboard
- /WebCryptoAPI/getRandomValues.any.worker.html - WPT Dashboard Interop Dashboard
// Step 1.
test(function() {
assert_throws_dom("TypeMismatchError", function() {
self.crypto.getRandomValues(new Float16Array(6))
}, "Float16Array")
assert_throws_dom("TypeMismatchError", function() {
self.crypto.getRandomValues(new Float32Array(6))
}, "Float32Array")
assert_throws_dom("TypeMismatchError", function() {
self.crypto.getRandomValues(new Float64Array(6))
}, "Float64Array")
assert_throws_dom("TypeMismatchError", function() {
const len = 65536 / Float16Array.BYTES_PER_ELEMENT + 1;
self.crypto.getRandomValues(new Float16Array(len));
}, "Float16Array (too long)")
assert_throws_dom("TypeMismatchError", function() {
const len = 65536 / Float32Array.BYTES_PER_ELEMENT + 1;
self.crypto.getRandomValues(new Float32Array(len));
}, "Float32Array (too long)")
assert_throws_dom("TypeMismatchError", function() {
const len = 65536 / Float64Array.BYTES_PER_ELEMENT + 1;
self.crypto.getRandomValues(new Float64Array(len))
}, "Float64Array (too long)")
}, "Float arrays");
test(function() {
assert_throws_dom("TypeMismatchError", function() {
self.crypto.getRandomValues(new DataView(new ArrayBuffer(6)))
}, "DataView")
assert_throws_dom("TypeMismatchError", function() {
self.crypto.getRandomValues(new DataView(new ArrayBuffer(65536 + 1)))
}, "DataView (too long)")
}, "DataView");
const arrays = [
'Int8Array',
'Int16Array',
'Int32Array',
'BigInt64Array',
'Uint8Array',
'Uint8ClampedArray',
'Uint16Array',
'Uint32Array',
'BigUint64Array',
];
for (const array of arrays) {
const ctor = globalThis[array];
test(function() {
assert_equals(self.crypto.getRandomValues(new ctor(8)).constructor,
ctor, "crypto.getRandomValues(new " + array + "(8))")
}, "Integer array: " + array);
test(function() {
const maxlength = 65536 / ctor.BYTES_PER_ELEMENT;
assert_throws_dom("QuotaExceededError", function() {
self.crypto.getRandomValues(new ctor(maxlength + 1))
}, "crypto.getRandomValues length over 65536")
}, "Large length: " + array);
test(function() {
assert_true(self.crypto.getRandomValues(new ctor(0)).length == 0)
}, "Null arrays: " + array);
}