1 files changed, 40 insertions, 0 deletions
diff --git a/testing/modules/Sinon.sys.mjs b/testing/modules/Sinon.sys.mjs
new file mode 100644
index 0000000000..d4edb4bba9
--- /dev/null
+++ b/testing/modules/Sinon.sys.mjs
@@ -0,0 +1,40 @@
+/* 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/. */
+
+// ================================================
+// Load mocking/stubbing library sinon
+// docs: http://sinonjs.org/releases/v7.2.7/
+import {
+  clearInterval,
+  clearTimeout,
+  setInterval,
+  setIntervalWithTarget,
+  setTimeout,
+  setTimeoutWithTarget,
+} from "resource://gre/modules/Timer.sys.mjs";
+
+const obj = {
+  global: {
+    clearInterval,
+    clearTimeout,
+    setInterval,
+    setIntervalWithTarget,
+    setTimeout,
+    setTimeoutWithTarget,
+    Date,
+  },
+  clearInterval,
+  clearTimeout,
+  setInterval,
+  setIntervalWithTarget,
+  setTimeout,
+  setTimeoutWithTarget,
+};
+Services.scriptloader.loadSubScript(
+  "resource://testing-common/sinon-7.2.7.js",
+  obj
+);
+
+export const sinon = obj.global.sinon;
+// ================================================