From bcf621c78167c832de175d96cae1e9fab122ef85 Mon Sep 17 00:00:00 2001
From: amy churchwell <achurchwell@mozilla.com>
Date: Thu, 21 Oct 2021 15:42:01 +0000
Subject: [PATCH] Bug 1735724 - Add unit test for 200 OK with empty tiles array
 response from Contile. r=nanj

Differential Revision: https://phabricator.services.mozilla.com/D129088
---
 .../newtab/test/unit/lib/TopSitesFeed.test.js    | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/browser/components/newtab/test/unit/lib/TopSitesFeed.test.js b/browser/components/newtab/test/unit/lib/TopSitesFeed.test.js
index 1b63eb0e0834..686ae8592223 100644
--- a/browser/components/newtab/test/unit/lib/TopSitesFeed.test.js
+++ b/browser/components/newtab/test/unit/lib/TopSitesFeed.test.js
@@ -2136,6 +2136,22 @@ describe("Top Sites Feed", () => {
       assert.ok(!feed._contile.sites.length);
     });
 
+    it("should handle empty payload properly from Contile", async () => {
+      fetchStub.resolves({
+        ok: true,
+        status: 200,
+        json: () =>
+          Promise.resolve({
+            tiles: [],
+          }),
+      });
+
+      const fetched = await feed._contile._fetchSites();
+
+      assert.ok(fetched);
+      assert.ok(!feed._contile.sites.length);
+    });
+
     it("should handle no content properly from Contile", async () => {
       fetchStub.resolves({ ok: true, status: 204 });