1 files changed, 55 insertions, 0 deletions
diff --git a/accessible/tests/mochitest/events/slow_image.sjs b/accessible/tests/mochitest/events/slow_image.sjs
new file mode 100644
index 0000000000..f322568be6
--- /dev/null
+++ b/accessible/tests/mochitest/events/slow_image.sjs
@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// small red image
+const IMG_BYTES = atob(
+  "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
+
+// stolen from file_blocked_script.sjs
+function setGlobalState(data, key) {
+  let x = {
+    data,
+    QueryInterface: ChromeUtils.generateQI([]),
+  };
+  x.wrappedJSObject = x;
+  setObjectState(key, x);
+}
+
+function getGlobalState(key) {
+  var data;
+  getObjectState(key, function (x) {
+    data = x && x.wrappedJSObject.data;
+  });
+  return data;
+}
+
+function handleRequest(request, response) {
+  if (request.queryString == "complete") {
+    // Unblock the previous request.
+    response.setStatusLine(request.httpVersion, 200, "OK");
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setHeader("Content-Type", "application/json", false);
+    response.write("true"); // the payload doesn't matter.
+
+    let blockedResponse = getGlobalState("a11y-image");
+    if (blockedResponse) {
+      blockedResponse.setStatusLine(request.httpVersion, 200, "OK");
+      blockedResponse.setHeader("Cache-Control", "no-cache", false);
+      blockedResponse.setHeader("Content-Type", "image/png", false);
+      blockedResponse.write(IMG_BYTES);
+      blockedResponse.finish();
+
+      setGlobalState(undefined, "a11y-image");
+    }
+  } else {
+    // Getting the image
+    response.processAsync();
+    // Store the response in the global state
+    setGlobalState(response, "a11y-image");
+  }
+}