1 files changed, 50 insertions, 0 deletions
diff --git a/spec/frontend/lib/utils/favicon_ci_spec.js b/spec/frontend/lib/utils/favicon_ci_spec.js
new file mode 100644
index 00000000000..e35b008b862
--- /dev/null
+++ b/spec/frontend/lib/utils/favicon_ci_spec.js
@@ -0,0 +1,50 @@
+import MockAdapter from 'axios-mock-adapter';
+import axios from '~/lib/utils/axios_utils';
+import { setFaviconOverlay, resetFavicon } from '~/lib/utils/favicon';
+import { setCiStatusFavicon } from '~/lib/utils/favicon_ci';
+
+jest.mock('~/lib/utils/favicon');
+
+const TEST_URL = '/test/pipelinable/1';
+const TEST_FAVICON = '/favicon.test.ico';
+
+describe('~/lib/utils/favicon_ci', () => {
+  let mock;
+
+  beforeEach(() => {
+    mock = new MockAdapter(axios);
+  });
+
+  afterEach(() => {
+    mock.restore();
+    mock = null;
+  });
+
+  describe('setCiStatusFavicon', () => {
+    it.each`
+      response                     | setFaviconOverlayCalls | resetFaviconCalls
+      ${{}}                        | ${[]}                  | ${[[]]}
+      ${{ favicon: TEST_FAVICON }} | ${[[TEST_FAVICON]]}    | ${[]}
+    `(
+      'with response=$response',
+      async ({ response, setFaviconOverlayCalls, resetFaviconCalls }) => {
+        mock.onGet(TEST_URL).replyOnce(200, response);
+
+        expect(setFaviconOverlay).not.toHaveBeenCalled();
+        expect(resetFavicon).not.toHaveBeenCalled();
+
+        await setCiStatusFavicon(TEST_URL);
+
+        expect(setFaviconOverlay.mock.calls).toEqual(setFaviconOverlayCalls);
+        expect(resetFavicon.mock.calls).toEqual(resetFaviconCalls);
+      },
+    );
+
+    it('with error', async () => {
+      mock.onGet(TEST_URL).replyOnce(500);
+
+      await expect(setCiStatusFavicon(TEST_URL)).rejects.toEqual(expect.any(Error));
+      expect(resetFavicon).toHaveBeenCalled();
+    });
+  });
+});