1 files changed, 71 insertions, 0 deletions
diff --git a/testing/web-platform/tests/FileAPI/url/resources/fetch-tests.js b/testing/web-platform/tests/FileAPI/url/resources/fetch-tests.js
new file mode 100644
index 0000000000..a81ea1e7b1
--- /dev/null
+++ b/testing/web-platform/tests/FileAPI/url/resources/fetch-tests.js
@@ -0,0 +1,71 @@
+// 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');
+  }
+}
+\ No newline at end of file