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test/fixtures/wpt/FileAPI/url/resources/create-helper.html

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+<!doctype html>
+<script>
+self.addEventListener('message', e => {
+  let url = URL.createObjectURL(e.data.blob);
+  e.source.postMessage({url: url}, '*');
+});
+</script>

test/fixtures/wpt/FileAPI/url/resources/create-helper.js

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+self.addEventListener('message', e => {
+  let url = URL.createObjectURL(e.data.blob);
+  self.postMessage({url: url});
+});

test/fixtures/wpt/FileAPI/url/resources/fetch-tests.js

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+// This method generates a number of tests verifying fetching of blob URLs,
+// allowing the same tests to be used both with fetch() and XMLHttpRequest.
+//
+// |fetch_method| is only used in test names, and should describe the
+// (javascript) method being used by the other two arguments (i.e. 'fetch' or 'XHR').
+//
+// |fetch_should_succeed| is a callback that is called with the Test and a URL.
+// Fetching the URL is expected to succeed. The callback should return a promise
+// resolved with whatever contents were fetched.
+//
+// |fetch_should_fail| similarly is a callback that is called with the Test, a URL
+// to fetch, and optionally a method to use to do the fetch. If no method is
+// specified the callback should use the 'GET' method. Fetching of these URLs is
+// expected to fail, and the callback should return a promise that resolves iff
+// fetching did indeed fail.
+function fetch_tests(fetch_method, fetch_should_succeed, fetch_should_fail) {
+  const blob_contents = 'test blob contents';
+  const blob = new Blob([blob_contents]);
+
+  promise_test(t => {
+    const url = URL.createObjectURL(blob);
+
+    return fetch_should_succeed(t, url).then(text => {
+      assert_equals(text, blob_contents);
+    });
+  }, 'Blob URLs can be used in ' + fetch_method);
+
+  promise_test(t => {
+    const url = URL.createObjectURL(blob);
+
+    return fetch_should_succeed(t, url + '#fragment').then(text => {
+      assert_equals(text, blob_contents);
+    });
+  }, fetch_method + ' with a fragment should succeed');
+
+  promise_test(t => {
+    const url = URL.createObjectURL(blob);
+    URL.revokeObjectURL(url);
+
+    return fetch_should_fail(t, url);
+  }, fetch_method + ' of a revoked URL should fail');
+
+  promise_test(t => {
+    const url = URL.createObjectURL(blob);
+    URL.revokeObjectURL(url + '#fragment');
+
+    return fetch_should_succeed(t, url).then(text => {
+      assert_equals(text, blob_contents);
+    });
+  }, 'Only exact matches should revoke URLs, using ' + fetch_method);
+
+  promise_test(t => {
+    const url = URL.createObjectURL(blob);
+
+    return fetch_should_fail(t, url + '?querystring');
+  }, 'Appending a query string should cause ' + fetch_method + ' to fail');
+
+  promise_test(t => {
+    const url = URL.createObjectURL(blob);
+
+    return fetch_should_fail(t, url + '/path');
+  }, 'Appending a path should cause ' + fetch_method + ' to fail');
+
+  for (const method of ['HEAD', 'POST', 'DELETE', 'OPTIONS', 'PUT', 'CUSTOM']) {
+    const url = URL.createObjectURL(blob);
+
+    promise_test(t => {
+      return fetch_should_fail(t, url, method);
+    }, fetch_method + ' with method "' + method + '" should fail');
+  }
+}

test/fixtures/wpt/FileAPI/url/resources/revoke-helper.html

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+<!doctype html>
+<script>
+self.addEventListener('message', e => {
+  URL.revokeObjectURL(e.data.url);
+  e.source.postMessage('revoked', '*');
+});
+</script>

test/fixtures/wpt/FileAPI/url/resources/revoke-helper.js

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+self.addEventListener('message', e => {
+  URL.revokeObjectURL(e.data.url);
+  // Registering a new object URL will make absolutely sure that the revocation
+  // has propagated. Without this at least in chrome it is possible for the
+  // below postMessage to arrive at its destination before the revocation has
+  // been fully processed.
+  URL.createObjectURL(new Blob([]));
+  self.postMessage('revoked');
+});