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Test Info: Warnings
- This test has a WPT meta file that disables it given conditions:
- This WPT test may be referenced by the following Test IDs:
- /webrtc-encoded-transform/sframe-transform.html - WPT Dashboard Interop Dashboard
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<script>
promise_test(async (test) => {
const pc = new RTCPeerConnection();
const senderTransform = new SFrameTransform();
const receiverTransform = new SFrameTransform();
const sender1 = pc.addTransceiver('audio').sender;
const sender2 = pc.addTransceiver('video').sender;
const receiver1 = pc.getReceivers()[0];
const receiver2 = pc.getReceivers()[1];
sender1.transform = senderTransform;
receiver1.transform = receiverTransform;
assert_throws_dom("InvalidStateError", () => sender2.transform = senderTransform);
assert_throws_dom("InvalidStateError", () => receiver2.transform = receiverTransform);
sender1.transform = senderTransform;
receiver1.transform = receiverTransform;
sender1.transform = null;
receiver1.transform = null;
}, "Cannot reuse attached transforms");
test(() => {
const senderTransform = new SFrameTransform();
assert_true(senderTransform.readable instanceof ReadableStream);
assert_true(senderTransform.writable instanceof WritableStream);
}, "SFrameTransform exposes readable and writable");
promise_test(async (test) => {
const pc = new RTCPeerConnection();
const senderTransform = new SFrameTransform();
const receiverTransform = new SFrameTransform();
const sender1 = pc.addTransceiver('audio').sender;
const sender2 = pc.addTransceiver('video').sender;
const receiver1 = pc.getReceivers()[0];
const receiver2 = pc.getReceivers()[1];
assert_false(senderTransform.readable.locked, "sender readable before");
assert_false(senderTransform.writable.locked, "sender writable before");
assert_false(receiverTransform.readable.locked, "receiver readable before");
assert_false(receiverTransform.writable.locked, "receiver writable before");
sender1.transform = senderTransform;
receiver1.transform = receiverTransform;
assert_true(senderTransform.readable.locked, "sender readable during");
assert_true(senderTransform.writable.locked, "sender writable during");
assert_true(receiverTransform.readable.locked, "receiver readable during");
assert_true(receiverTransform.writable.locked, "receiver writable during");
sender1.transform = null;
receiver1.transform = null;
assert_true(senderTransform.readable.locked, "sender readable after");
assert_true(senderTransform.writable.locked, "sender writable after");
assert_true(receiverTransform.readable.locked, "receiver readable after");
assert_true(receiverTransform.writable.locked, "receiver writable after");
}, "readable/writable are locked when attached and after being attached");
promise_test(async (test) => {
const key = await crypto.subtle.importKey("raw", new Uint8Array([143, 77, 43, 10, 72, 19, 37, 67, 236, 219, 24, 93, 26, 165, 91, 178]), "HKDF", false, ["deriveBits", "deriveKey"]);
const senderTransform = new SFrameTransform({ role : 'encrypt', authenticationSize: 10 });
senderTransform.setEncryptionKey(key);
const receiverTransform = new SFrameTransform({ role : 'decrypt', authenticationSize: 10 });
receiverTransform.setEncryptionKey(key);
const writer = senderTransform.writable.getWriter();
const reader = receiverTransform.readable.getReader();
senderTransform.readable.pipeTo(receiverTransform.writable);
const sent = new ArrayBuffer(8);
const view = new Int8Array(sent);
for (let cptr = 0; cptr < sent.byteLength; ++cptr)
view[cptr] = cptr;
writer.write(sent);
const received = await reader.read();
assert_equals(received.value.byteLength, 8);
const view2 = new Int8Array(received.value);
for (let cptr = 0; cptr < sent.byteLength; ++cptr)
assert_equals(view2[cptr], view[cptr]);
}, "SFrame with array buffer - authentication size 10");
promise_test(async (test) => {
const key = await crypto.subtle.importKey("raw", new Uint8Array([143, 77, 43, 10, 72, 19, 37, 67, 236, 219, 24, 93, 26, 165, 91, 178]), "HKDF", false, ["deriveBits", "deriveKey"]);
const senderTransform = new SFrameTransform({ role : 'encrypt', authenticationSize: 10 });
const senderWriter = senderTransform.writable.getWriter();
const senderReader = senderTransform.readable.getReader();
const receiverTransform = new SFrameTransform({ role : 'decrypt', authenticationSize: 10 });
const receiverWriter = receiverTransform.writable.getWriter();
const receiverReader = receiverTransform.readable.getReader();
senderTransform.setEncryptionKey(key);
receiverTransform.setEncryptionKey(key);
const chunk = new ArrayBuffer(8);
// decryption should fail, leading to an empty array buffer.
await receiverWriter.write(chunk);
let received = await receiverReader.read();
assert_equals(received.value.byteLength, 0);
// We write again but this time with a chunk we can decrypt.
await senderWriter.write(chunk);
const encrypted = await senderReader.read();
await receiverWriter.write(encrypted.value);
received = await receiverReader.read();
assert_equals(received.value.byteLength, 8);
}, "SFrame decryption with array buffer that is too small");
promise_test(async (test) => {
const key = await crypto.subtle.importKey("raw", new Uint8Array([143, 77, 43, 10, 72, 19, 37, 67, 236, 219, 24, 93, 26, 165, 91, 178]), "HKDF", false, ["deriveBits", "deriveKey"]);
const receiverTransform = new SFrameTransform({ role : 'decrypt', authenticationSize: 10 });
const receiverWriter = receiverTransform.writable.getWriter();
receiverTransform.setEncryptionKey(key);
// decryption should fail, leading to erroring the transform.
await promise_rejects_js(test, TypeError, receiverWriter.write({ }));
await promise_rejects_js(test, TypeError, receiverWriter.closed);
}, "SFrame transform gets errored if trying to process unexpected value types");
</script>
</body>
</html>