Fetch branch diverging counts from API

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/46139

1 files changed, 32 insertions, 0 deletions

diff --git a/spec/frontend/branches/divergence_graph_spec.js b/spec/frontend/branches/divergence_graph_spec.js
new file mode 100644
index 00000000000..4ed77c3a036
--- /dev/null
+++ b/spec/frontend/branches/divergence_graph_spec.js
@@ -0,0 +1,32 @@
+import MockAdapter from 'axios-mock-adapter';
+import axios from '~/lib/utils/axios_utils';
+import init from '~/branches/divergence_graph';
+
+describe('Divergence graph', () => {
+  let mock;
+
+  beforeEach(() => {
+    mock = new MockAdapter(axios);
+
+    mock.onGet('/-/diverging_counts').reply(200, {
+      master: { ahead: 1, behind: 1 },
+    });
+
+    jest.spyOn(axios, 'get');
+
+    document.body.innerHTML = `
+      <div class="js-branch-item" data-name="master"></div>
+    `;
+  });
+
+  afterEach(() => {
+    mock.restore();
+  });
+
+  it('calls axos get with list of branch names', () =>
+    init('/-/diverging_counts').then(() => {
+      expect(axios.get).toHaveBeenCalledWith('/-/diverging_counts', {
+        params: { names: ['master'] },
+      });
+    }));
+});