1 files changed, 28 insertions, 0 deletions
diff --git a/devtools/client/debugger/test/mochitest/browser_dbg-inline-exceptions.js b/devtools/client/debugger/test/mochitest/browser_dbg-inline-exceptions.js
new file mode 100644
index 0000000000..a7ae02cb61
--- /dev/null
+++ b/devtools/client/debugger/test/mochitest/browser_dbg-inline-exceptions.js
@@ -0,0 +1,28 @@
+/* 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/>. */
+
+// This test checks the appearance of an inline exception
+// and the content of the exception tooltip.
+
+"use strict";
+
+add_task(async function () {
+  const dbg = await initDebugger("doc-exceptions.html");
+  await selectSource(dbg, "exceptions.js");
+
+  info("Hovers over the inline exception mark text.");
+  await assertPreviewTextValue(dbg, 85, 10, {
+    text: 'TypeError: "abc".push is not a function',
+  });
+  await closePreviewAtPos(dbg, 85, 10);
+
+  const excLineEls = findAllElementsWithSelector(dbg, ".line-exception");
+  const excTextMarkEls = findAllElementsWithSelector(
+    dbg,
+    ".mark-text-exception"
+  );
+
+  is(excLineEls.length, 1, "The editor has one exception line");
+  is(excTextMarkEls.length, 1, "One token is marked as an exception.");
+});