1 files changed, 50 insertions, 0 deletions
diff --git a/spec/frontend/api/user_api_spec.js b/spec/frontend/api/user_api_spec.js
new file mode 100644
index 00000000000..ee7194bdf5f
--- /dev/null
+++ b/spec/frontend/api/user_api_spec.js
@@ -0,0 +1,50 @@
+import MockAdapter from 'axios-mock-adapter';
+
+import { followUser, unfollowUser } from '~/api/user_api';
+import axios from '~/lib/utils/axios_utils';
+
+describe('~/api/user_api', () => {
+  let axiosMock;
+  let originalGon;
+
+  beforeEach(() => {
+    axiosMock = new MockAdapter(axios);
+
+    originalGon = window.gon;
+    window.gon = { api_version: 'v4' };
+  });
+
+  afterEach(() => {
+    axiosMock.restore();
+    axiosMock.resetHistory();
+    window.gon = originalGon;
+  });
+
+  describe('followUser', () => {
+    it('calls correct URL and returns expected response', async () => {
+      const expectedUrl = '/api/v4/users/1/follow';
+      const expectedResponse = { message: 'Success' };
+
+      axiosMock.onPost(expectedUrl).replyOnce(200, expectedResponse);
+
+      await expect(followUser(1)).resolves.toEqual(
+        expect.objectContaining({ data: expectedResponse }),
+      );
+      expect(axiosMock.history.post[0].url).toBe(expectedUrl);
+    });
+  });
+
+  describe('unfollowUser', () => {
+    it('calls correct URL and returns expected response', async () => {
+      const expectedUrl = '/api/v4/users/1/unfollow';
+      const expectedResponse = { message: 'Success' };
+
+      axiosMock.onPost(expectedUrl).replyOnce(200, expectedResponse);
+
+      await expect(unfollowUser(1)).resolves.toEqual(
+        expect.objectContaining({ data: expectedResponse }),
+      );
+      expect(axiosMock.history.post[0].url).toBe(expectedUrl);
+    });
+  });
+});