1 files changed, 38 insertions, 0 deletions
diff --git a/uriloader/exthandler/tests/mochitest/HelperAppLauncherDialog_chromeScript.js b/uriloader/exthandler/tests/mochitest/HelperAppLauncherDialog_chromeScript.js
new file mode 100644
index 0000000000..d08d72b048
--- /dev/null
+++ b/uriloader/exthandler/tests/mochitest/HelperAppLauncherDialog_chromeScript.js
@@ -0,0 +1,38 @@
+const { ComponentUtils } = ChromeUtils.import(
+  "resource://gre/modules/ComponentUtils.jsm"
+);
+
+const HELPERAPP_DIALOG_CONTRACT = "@mozilla.org/helperapplauncherdialog;1";
+const HELPERAPP_DIALOG_CID = Components.ID(
+  Cc[HELPERAPP_DIALOG_CONTRACT].number
+);
+
+const FAKE_CID = Cc["@mozilla.org/uuid-generator;1"]
+  .getService(Ci.nsIUUIDGenerator)
+  .generateUUID();
+/* eslint-env mozilla/frame-script */
+function HelperAppLauncherDialog() {}
+HelperAppLauncherDialog.prototype = {
+  show(aLauncher, aWindowContext, aReason) {
+    sendAsyncMessage("suggestedFileName", aLauncher.suggestedFileName);
+  },
+  QueryInterface: ChromeUtils.generateQI(["nsIHelperAppLauncherDialog"]),
+};
+
+var registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+registrar.registerFactory(
+  FAKE_CID,
+  "",
+  HELPERAPP_DIALOG_CONTRACT,
+  ComponentUtils._getFactory(HelperAppLauncherDialog)
+);
+
+addMessageListener("unregister", function() {
+  registrar.registerFactory(
+    HELPERAPP_DIALOG_CID,
+    "",
+    HELPERAPP_DIALOG_CONTRACT,
+    null
+  );
+  sendAsyncMessage("unregistered");
+});