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Test Info: Warnings
- This test has a WPT meta file that expects 60 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /domparsing/tentative/stream-positional.html - WPT Dashboard Interop Dashboard
<!doctype html>
<meta charset="utf-8" />
<title>HTML partial updates - positional streaming methods</title>
<link rel="help" href="https://github.com/WICG/declarative-partial-updates" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<script>
async function create_and_stream(method, old_html, new_html, options = {}) {
const placeholder = document.createElement("div");
const inner = document.createElement("span");
inner.innerHTML = old_html;
placeholder.appendChild(inner);
document.body.appendChild(placeholder);
const writable = inner[method](options);
assert_true(
writable instanceof WritableStream,
`node.${method}() returns a writable stream`,
);
const writer = writable.getWriter();
await writer.write(new_html);
await writer.close();
const result = placeholder.innerHTML;
placeholder.remove();
return result;
}
function test_stream_result(method, old_html, new_html, options, expected) {
promise_test(
async (t) => {
assert_equals(
await create_and_stream(method, old_html, new_html, options),
expected,
);
},
`${method}(${JSON.stringify(options)}) with ${old_html} and ${new_html}`,
);
}
for (const safe of [true, false]) {
test_stream_result(
`streamAppendHTML${safe ? "" : "Unsafe"}`,
"A",
"B",
{},
"<span>AB</span>",
);
test_stream_result(
`streamAppendHTML${safe ? "" : "Unsafe"}`,
"A",
"<p>B</p>",
{},
"<span>A<p>B</p></span>",
);
test_stream_result(
`streamAppendHTML${safe ? "" : "Unsafe"}`,
"<p>A</p>",
"B",
{},
"<span><p>A</p>B</span>",
);
test_stream_result(
`streamAppendHTML${safe ? "" : "Unsafe"}`,
"<p>A</p>",
"<p>B</p>",
{},
"<span><p>A</p><p>B</p></span>",
);
test_stream_result(
`streamPrependHTML${safe ? "" : "Unsafe"}`,
"A",
"B",
{},
"<span>BA</span>",
);
test_stream_result(
`streamPrependHTML${safe ? "" : "Unsafe"}`,
"A",
"<p>B</p>",
{},
"<span><p>B</p>A</span>",
);
test_stream_result(
`streamPrependHTML${safe ? "" : "Unsafe"}`,
"<p>A</p>",
"B",
{},
"<span>B<p>A</p></span>",
);
test_stream_result(
`streamPrependHTML${safe ? "" : "Unsafe"}`,
"<p>A</p>",
"<p>B</p>",
{},
"<span><p>B</p><p>A</p></span>",
);
test_stream_result(
`streamReplaceWithHTML${safe ? "" : "Unsafe"}`,
"A",
"B",
{},
"B",
);
test_stream_result(
`streamReplaceWithHTML${safe ? "" : "Unsafe"}`,
"A",
"<p>B</p>",
{},
"<p>B</p>",
);
test_stream_result(
`streamReplaceWithHTML${safe ? "" : "Unsafe"}`,
"<p>A</p>",
"B",
{},
"B",
);
test_stream_result(
`streamReplaceWithHTML${safe ? "" : "Unsafe"}`,
"<p>A</p>",
"<p>B</p>",
{},
"<p>B</p>",
);
test_stream_result(
`streamBeforeHTML${safe ? "" : "Unsafe"}`,
"A",
"B",
{},
"B<span>A</span>",
);
test_stream_result(
`streamBeforeHTML${safe ? "" : "Unsafe"}`,
"A",
"<p>B</p>",
{},
"<p>B</p><span>A</span>",
);
test_stream_result(
`streamBeforeHTML${safe ? "" : "Unsafe"}`,
"<p>A</p>",
"B",
{},
"B<span><p>A</p></span>",
);
test_stream_result(
`streamBeforeHTML${safe ? "" : "Unsafe"}`,
"<p>A</p>",
"<p>B</p>",
{},
"<p>B</p><span><p>A</p></span>",
);
test_stream_result(
`streamAfterHTML${safe ? "" : "Unsafe"}`,
"A",
"B",
{},
"<span>A</span>B",
);
test_stream_result(
`streamAfterHTML${safe ? "" : "Unsafe"}`,
"A",
"<p>B</p>",
{},
"<span>A</span><p>B</p>",
);
test_stream_result(
`streamAfterHTML${safe ? "" : "Unsafe"}`,
"<p>A</p>",
"B",
{},
"<span><p>A</p></span>B",
);
test_stream_result(
`streamAfterHTML${safe ? "" : "Unsafe"}`,
"<p>A</p>",
"<p>B</p>",
{},
"<span><p>A</p></span><p>B</p>",
);
for (const runScripts of [true, false]) {
const should_run_scripts = runScripts && !safe;
const options = { runScripts };
for (const position of [
"After",
"Before",
"ReplaceWith",
"Append",
"Prepend",
]) {
const method = `stream${position}HTML${safe ? "" : "Unsafe"}`;
promise_test(
async (t) => {
window.did_run = false;
await create_and_stream(
method,
"",
"<script>window.did_run = true;</" + "script>",
options,
);
assert_equals(window.did_run, should_run_scripts);
},
`${method}(${JSON.stringify(options)}) should ${should_run_scripts ? "" : "not "}run scripts`,
);
}
}
}
</script>
</body>