1 files changed, 23 insertions, 0 deletions
diff --git a/devtools/client/framework/test/browser_target_cached-front.js b/devtools/client/framework/test/browser_target_cached-front.js
new file mode 100644
index 0000000000..43156cbded
--- /dev/null
+++ b/devtools/client/framework/test/browser_target_cached-front.js
@@ -0,0 +1,23 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+add_task(async function () {
+  gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser);
+  await BrowserTestUtils.browserLoaded(gBrowser.selectedBrowser);
+
+  const target = await createAndAttachTargetForTab(gBrowser.selectedTab);
+
+  info("Cached front when getFront has not been called");
+  let getCachedFront = target.getCachedFront("accessibility");
+  ok(!getCachedFront, "no front exists");
+
+  info("Cached front when getFront has been called but has not finished");
+  const asyncFront = target.getFront("accessibility");
+  getCachedFront = target.getCachedFront("accessibility");
+  ok(!getCachedFront, "no front exists");
+
+  info("Cached front when getFront has been called and has finished");
+  const front = await asyncFront;
+  getCachedFront = target.getCachedFront("accessibility");
+  is(getCachedFront, front, "front is the same as async front");
+});