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importScripts("/resources/testharness.js");
test(t => {
// The Window test html conditionally fetches and runs these tests only if the
// implementation does not have a true-valued static
// canConstructInDedicatedWorker property on MediaSource in the Window
// context. So, the implementation must agree on lack of support here in the
// dedicated worker context.
// Ensure we're executing in a dedicated worker context.
assert_true(self instanceof DedicatedWorkerGlobalScope, "self instanceof DedicatedWorkerGlobalScope");
assert_true(self.MediaSource === undefined, "MediaSource is undefined in DedicatedWorker");
assert_throws_js(ReferenceError,
function() { var ms = new MediaSource(); },
"MediaSource construction in DedicatedWorker throws exception");
}, "MediaSource construction in DedicatedWorker context must fail if Window context did not claim MSE supported in DedicatedWorker");
done();
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