1 files changed, 42 insertions, 0 deletions
diff --git a/toolkit/components/extensions/test/xpcshell/test_ext_sandbox_var.js b/toolkit/components/extensions/test/xpcshell/test_ext_sandbox_var.js
new file mode 100644
index 0000000000..0a8a5acdef
--- /dev/null
+++ b/toolkit/components/extensions/test/xpcshell/test_ext_sandbox_var.js
@@ -0,0 +1,42 @@
+"use strict";
+
+const server = createHttpServer();
+server.registerDirectory("/data/", do_get_file("data"));
+
+const BASE_URL = `http://localhost:${server.identity.primaryPort}/data`;
+
+function contentScript() {
+  window.x = 12;
+  browser.test.assertEq(window.x, 12, "x is 12");
+  browser.test.notifyPass("background test passed");
+}
+
+let extensionData = {
+  manifest: {
+    content_scripts: [
+      {
+        matches: ["http://localhost/*/file_sample.html"],
+        js: ["content_script.js"],
+        run_at: "document_idle",
+      },
+    ],
+  },
+
+  files: {
+    "content_script.js": contentScript,
+  },
+};
+
+add_task(async function test_contentscript() {
+  let extension = ExtensionTestUtils.loadExtension(extensionData);
+  await extension.startup();
+
+  let contentPage = await ExtensionTestUtils.loadContentPage(
+    `${BASE_URL}/file_sample.html`
+  );
+
+  await extension.awaitFinish();
+  await contentPage.close();
+
+  await extension.unload();
+});