Source code
Revision control
Copy as Markdown
Other Tools
Test Info:
- This WPT test may be referenced by the following Test IDs:
- /compression/zstd/decompression-constructor.tentative.any.html - WPT Dashboard Interop Dashboard
// META: global=window
"use strict";
promise_test(async t => {
t.add_cleanup(async () => {
await SpecialPowers.popPrefEnv();
});
await SpecialPowers.pushPrefEnv({
set: [["dom.compression_streams.zstd.enabled", false]],
});
assert_throws_js(
TypeError,
() => new DecompressionStream("zstd"),
'Constructor given "zstd" should throw'
);
}, '"zstd" should be an invalid DecompressionStream format in an unprivileged context with the pref set to false');
promise_test(async t => {
t.add_cleanup(async () => {
await SpecialPowers.popPrefEnv();
});
await SpecialPowers.pushPrefEnv({
set: [["dom.compression_streams.zstd.enabled", true]],
});
const ds = new DecompressionStream("zstd");
assert_equals(ds.constructor.name, "DecompressionStream", "");
}, '"zstd" should be a valid DecompressionStream format in an unprivileged context with the pref set to true');
promise_test(async t => {
t.add_cleanup(async () => {
await SpecialPowers.popPrefEnv();
});
await SpecialPowers.pushPrefEnv({
set: [["dom.compression_streams.zstd.enabled", true]],
});
const constructorSucceeded = await SpecialPowers.spawnChrome(
[],
() => {
const ds = new this.browsingContext.topChromeWindow.DecompressionStream(
"zstd"
);
if (!ds) {
throw new Error(
'Failed to construct DecompressionStream with "zstd" format in privileged context.'
);
}
return true;
}
);
assert_true(
constructorSucceeded,
'Constructor given "zstd" should succeed in a privileged context'
);
}, '"zstd" should be a valid DecompressionStream format in a privileged context with the pref set to false');
promise_test(async t => {
t.add_cleanup(async () => {
await SpecialPowers.popPrefEnv();
});
await SpecialPowers.pushPrefEnv({
set: [["dom.compression_streams.zstd.enabled", true]],
});
const constructorSucceeded = await SpecialPowers.spawnChrome(
[],
() => {
const ds = new this.browsingContext.topChromeWindow.DecompressionStream(
"zstd"
);
if (!ds) {
throw new Error(
'Failed to construct DecompressionStream with "zstd" format in privileged context.'
);
}
return true;
}
);
assert_true(
constructorSucceeded,
'Constructor given "zstd" should succeed in a privileged context'
);
}, '"zstd" should be a valid DecompressionStream format in a privileged context with the pref set to true');