1 files changed, 37 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_webconsole_webextension_promise_rejection.js b/devtools/client/webconsole/test/browser/browser_webconsole_webextension_promise_rejection.js
new file mode 100644
index 0000000000..a575e3e13f
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_webconsole_webextension_promise_rejection.js
@@ -0,0 +1,37 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests that an uncaught promise rejection from a content script
+// is reported to the tabs' webconsole.
+
+"use strict";
+
+const TEST_URI =
+  "https://example.com/browser/devtools/client/webconsole/" +
+  "test/browser/test-blank.html";
+
+add_task(async function () {
+  const extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      content_scripts: [
+        {
+          matches: [TEST_URI],
+          js: ["content-script.js"],
+        },
+      ],
+    },
+
+    files: {
+      "content-script.js": function () {
+        Promise.reject("abc");
+      },
+    },
+  });
+
+  await extension.startup();
+
+  const hud = await openNewTabAndConsole(TEST_URI);
+  await waitFor(() => findErrorMessage(hud, "uncaught exception: abc"));
+
+  await extension.unload();
+});