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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /testing/web-platform/tests/webrtc/RTCDataChannel-bufferedAmount.html
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!doctype html>
+<meta charset=utf-8>
+<meta name="timeout" content="long">
+<title>RTCDataChannel.prototype.bufferedAmount</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="RTCPeerConnection-helper.js"></script>
+<script>
+'use strict';
+
+// Test is based on the following revision:
+// https://rawgit.com/w3c/webrtc-pc/1cc5bfc3ff18741033d804c4a71f7891242fb5b3/webrtc.html
+
+// The following helper functions are called from RTCPeerConnection-helper.js:
+// createDataChannelPair
+// awaitMessage
+
+/*
+ 6.2. RTCDataChannel
+ interface RTCDataChannel : EventTarget {
+ ...
+ readonly attribute unsigned long bufferedAmount;
+ void send(USVString data);
+ void send(Blob data);
+ void send(ArrayBuffer data);
+ void send(ArrayBufferView data);
+ };
+
+ bufferedAmount
+ The bufferedAmount attribute must return the number of bytes of application
+ data (UTF-8 text and binary data) that have been queued using send() but that,
+ as of the last time the event loop started executing a task, had not yet been
+ transmitted to the network. (This thus includes any text sent during the
+ execution of the current task, regardless of whether the user agent is able
+ to transmit text asynchronously with script execution.) This does not include
+ framing overhead incurred by the protocol, or buffering done by the operating
+ system or network hardware. The value of the [[BufferedAmount]] slot will only
+ increase with each call to the send() method as long as the [[ReadyState]] slot
+ is open; however, the slot does not reset to zero once the channel closes. When
+ the underlying data transport sends data from its queue, the user agent MUST
+ queue a task that reduces [[BufferedAmount]] with the number of bytes that was
+ sent.
+
+
+ [WebMessaging]
+ interface MessageEvent : Event {
+ readonly attribute any data;
+ ...
+ };
+ */
+
+// Simple ASCII encoded string
+const helloString = 'hello';
+// ASCII encoded buffer representation of the string
+const helloBuffer = Uint8Array.of(0x68, 0x65, 0x6c, 0x6c, 0x6f);
+const helloBlob = new Blob([helloBuffer]);
+
+const emptyBuffer = Uint8Array.of();
+const emptyBlob = new Blob([emptyBuffer]);
+
+// Unicode string with multiple code units
+const unicodeString = '世界你好';
+// UTF-8 encoded buffer representation of the string
+const unicodeBuffer = Uint8Array.of(
+ 0xe4, 0xb8, 0x96, 0xe7, 0x95, 0x8c,
+ 0xe4, 0xbd, 0xa0, 0xe5, 0xa5, 0xbd);
+
+for (const options of [{}, {negotiated: true, id: 0}]) {
+ const mode = `${options.negotiated? "negotiated " : ""}datachannel`;
+
+ /*
+ Ensure .bufferedAmount is 0 initially for both sides.
+ */
+ promise_test(async (t) => {
+ const [dc1, dc2] = await createDataChannelPair(t, options);
+
+ assert_equals(dc1.bufferedAmount, 0, 'Expect bufferedAmount to be 0');
+ assert_equals(dc2.bufferedAmount, 0, 'Expect bufferedAmount to be 0');
+ }, `${mode} bufferedAmount initial value should be 0 for both peers`);
+
+ /*
+ 6.2. send()
+ 3. Execute the sub step that corresponds to the type of the methods argument:
+
+ string object
+ Let data be the object and increase the bufferedAmount attribute
+ by the number of bytes needed to express data as UTF-8.
+ */
+ promise_test(async (t) => {
+ const [dc1, dc2] = await createDataChannelPair(t, options);
+
+ dc1.send(unicodeString);
+ assert_equals(dc1.bufferedAmount, unicodeBuffer.byteLength,
+ 'Expect bufferedAmount to be the byte length of the unicode string');
+
+ await awaitMessage(dc2);
+ assert_equals(dc1.bufferedAmount, 0,
+ 'Expect sender bufferedAmount to be reduced after message is sent');
+ }, `${mode} bufferedAmount should increase to byte length of encoded` +
+ `unicode string sent`);
+
+ promise_test(async (t) => {
+ const [dc1, dc2] = await createDataChannelPair(t, options);
+
+ dc1.send("");
+ assert_equals(dc1.bufferedAmount, 0,
+ 'Expect bufferedAmount to stay at zero after sending empty string');
+
+ await awaitMessage(dc2);
+ assert_equals(dc1.bufferedAmount, 0, 'Expect sender bufferedAmount unchanged');
+ }, `${mode} bufferedAmount should stay at zero for empty string sent`);
+
+ /*
+ 6.2. send()
+ 3. Execute the sub step that corresponds to the type of the methods argument:
+ ArrayBuffer object
+ Let data be the data stored in the buffer described by the ArrayBuffer
+ object and increase the bufferedAmount attribute by the length of the
+ ArrayBuffer in bytes.
+ */
+ promise_test(async (t) => {
+ const [dc1, dc2] = await createDataChannelPair(t, options);
+
+ dc1.send(helloBuffer.buffer);
+ assert_equals(dc1.bufferedAmount, helloBuffer.byteLength,
+ 'Expect bufferedAmount to increase to byte length of sent buffer');
+
+ await awaitMessage(dc2);
+ assert_equals(dc1.bufferedAmount, 0,
+ 'Expect sender bufferedAmount to be reduced after message is sent');
+ }, `${mode} bufferedAmount should increase to byte length of buffer sent`);
+
+ promise_test(async (t) => {
+ const [dc1, dc2] = await createDataChannelPair(t, options);
+
+ dc1.send(emptyBuffer.buffer);
+ assert_equals(dc1.bufferedAmount, 0,
+ 'Expect bufferedAmount to stay at zero after sending empty buffer');
+
+ await awaitMessage(dc2);
+ assert_equals(dc1.bufferedAmount, 0,
+ 'Expect sender bufferedAmount unchanged');
+ }, `${mode} bufferedAmount should stay at zero for empty buffer sent`);
+
+ /*
+ 6.2. send()
+ 3. Execute the sub step that corresponds to the type of the methods argument:
+ Blob object
+ Let data be the raw data represented by the Blob object and increase
+ the bufferedAmount attribute by the size of data, in bytes.
+ */
+ promise_test(async (t) => {
+ const [dc1, dc2] = await createDataChannelPair(t, options);
+
+ dc1.send(helloBlob);
+ assert_equals(dc1.bufferedAmount, helloBlob.size,
+ 'Expect bufferedAmount to increase to size of sent blob');
+
+ await awaitMessage(dc2);
+ assert_equals(dc1.bufferedAmount, 0,
+ 'Expect sender bufferedAmount to be reduced after message is sent');
+ }, `${mode} bufferedAmount should increase to size of blob sent`);
+
+ promise_test(async (t) => {
+ const [dc1, dc2] = await createDataChannelPair(t, options);
+
+ dc1.send(emptyBlob);
+ assert_equals(dc1.bufferedAmount, 0,
+ 'Expect bufferedAmount to stay at zero after sending empty blob');
+
+ await awaitMessage(dc2);
+ assert_equals(dc1.bufferedAmount, 0,
+ 'Expect sender bufferedAmount unchanged');
+ }, `${mode} bufferedAmount should stay at zero for empty blob sent`);
+
+ // Test sending 3 messages: helloBuffer, unicodeString, helloBlob
+ promise_test(async (t) => {
+ const resolver = new Resolver();
+ let messageCount = 0;
+
+ const [dc1, dc2] = await createDataChannelPair(t, options);
+ dc2.onmessage = t.step_func(() => {
+ if (++messageCount === 3) {
+ assert_equals(dc1.bufferedAmount, 0,
+ 'Expect sender bufferedAmount to be reduced after message is sent');
+ resolver.resolve();
+ }
+ });
+
+ dc1.send(helloBuffer);
+ assert_equals(dc1.bufferedAmount, helloString.length,
+ 'Expect bufferedAmount to be the total length of all messages queued to send');
+
+ dc1.send(unicodeString);
+ assert_equals(dc1.bufferedAmount,
+ helloString.length + unicodeBuffer.byteLength,
+ 'Expect bufferedAmount to be the total length of all messages queued to send');
+
+ dc1.send(helloBlob);
+ assert_equals(dc1.bufferedAmount,
+ helloString.length*2 + unicodeBuffer.byteLength,
+ 'Expect bufferedAmount to be the total length of all messages queued to send');
+
+ await resolver;
+ }, `${mode} bufferedAmount should increase by byte length for each message sent`);
+
+ promise_test(async (t) => {
+ const [dc1] = await createDataChannelPair(t, options);
+
+ dc1.send(helloBuffer.buffer);
+ assert_equals(dc1.bufferedAmount, helloBuffer.byteLength,
+ 'Expect bufferedAmount to increase to byte length of sent buffer');
+
+ dc1.close();
+ assert_equals(dc1.bufferedAmount, helloBuffer.byteLength,
+ 'Expect bufferedAmount to not decrease immediately after closing the channel');
+ }, `${mode} bufferedAmount should not decrease immediately after initiating closure`);
+
+ promise_test(async (t) => {
+ const pc1 = new RTCPeerConnection();
+ t.add_cleanup(() => pc1.close());
+ const [dc1] = await createDataChannelPair(t, options, pc1);
+
+ dc1.send(helloBuffer.buffer);
+ assert_equals(dc1.bufferedAmount, helloBuffer.byteLength,
+ 'Expect bufferedAmount to increase to byte length of sent buffer');
+
+ pc1.close();
+ assert_equals(dc1.bufferedAmount, helloBuffer.byteLength,
+ 'Expect bufferedAmount to not decrease after closing the peer connection');
+ }, `${mode} bufferedAmount should not decrease after closing the peer connection`);
+
+ promise_test(async t => {
+ const [channel1, channel2] = await createDataChannelPair(t, options);
+ channel1.addEventListener('bufferedamountlow', t.step_func_done(() => {
+ assert_true(channel1.bufferedAmount <= channel1.bufferedAmountLowThreshold);
+ }));
+ const eventWatcher = new EventWatcher(t, channel1, ['bufferedamountlow']);
+ channel1.send(helloString);
+ await eventWatcher.wait_for(['bufferedamountlow']);
+ }, `${mode} bufferedamountlow event fires after send() is complete`);
+
+ promise_test(async t => {
+ const [channel1, channel2] = await createDataChannelPair(t, options);
+ channel1.send(helloString);
+ assert_equals(channel1.bufferedAmount, helloString.length);
+ await awaitMessage(channel2);
+ assert_equals(channel1.bufferedAmount, 0);
+ }, `${mode} bufferedamount is data.length on send(data)`);
+
+ promise_test(async t => {
+ const [channel1, channel2] = await createDataChannelPair(t, options);
+ channel1.send(helloString);
+ assert_equals(channel1.bufferedAmount, helloString.length);
+ assert_equals(channel1.bufferedAmount, helloString.length);
+ }, `${mode} bufferedamount returns the same amount if no more data is`);
+
+ promise_test(async t => {
+ const [channel1, channel2] = await createDataChannelPair(t, options);
+ let eventFireCount = 0;
+ channel1.addEventListener('bufferedamountlow', t.step_func(() => {
+ assert_true(channel1.bufferedAmount <= channel1.bufferedAmountLowThreshold);
+ assert_equals(++eventFireCount, 1);
+ }));
+ const eventWatcher = new EventWatcher(t, channel1, ['bufferedamountlow']);
+ channel1.send(helloString);
+ assert_equals(channel1.bufferedAmount, helloString.length);
+ channel1.send(helloString);
+ assert_equals(channel1.bufferedAmount, 2 * helloString.length);
+ await eventWatcher.wait_for(['bufferedamountlow']);
+ }, `${mode} bufferedamountlow event fires only once after multiple` +
+ ` consecutive send() calls`);
+
+ promise_test(async t => {
+ const [channel1, channel2] = await createDataChannelPair(t, options);
+ const eventWatcher = new EventWatcher(t, channel1, ['bufferedamountlow']);
+ channel1.send(helloString);
+ assert_equals(channel1.bufferedAmount, helloString.length);
+ await eventWatcher.wait_for(['bufferedamountlow']);
+ assert_equals(await awaitMessage(channel2), helloString);
+ channel1.send(helloString);
+ assert_equals(channel1.bufferedAmount, helloString.length);
+ await eventWatcher.wait_for(['bufferedamountlow']);
+ assert_equals(await awaitMessage(channel2), helloString);
+ }, `${mode} bufferedamountlow event fires after each sent message`);
+}
+</script>
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