2 files changed, 152 insertions, 0 deletions
diff --git a/spec/frontend/commit/components/commit_refs_spec.js b/spec/frontend/commit/components/commit_refs_spec.js
new file mode 100644
index 00000000000..7c35ff1969c
--- /dev/null
+++ b/spec/frontend/commit/components/commit_refs_spec.js
@@ -0,0 +1,82 @@
+import { shallowMount } from '@vue/test-utils';
+import Vue from 'vue';
+import VueApollo from 'vue-apollo';
+import { createAlert } from '~/alert';
+import commitReferences from '~/projects/commit_box/info/graphql/queries/commit_references.query.graphql';
+import containingBranchesQuery from '~/projects/commit_box/info/graphql/queries/commit_containing_branches.query.graphql';
+import RefsList from '~/projects/commit_box/info/components/refs_list.vue';
+import createMockApollo from 'helpers/mock_apollo_helper';
+import waitForPromises from 'helpers/wait_for_promises';
+import {
+  FETCH_CONTAINING_REFS_EVENT,
+  FETCH_COMMIT_REFERENCES_ERROR,
+} from '~/projects/commit_box/info/constants';
+import CommitRefs from '~/projects/commit_box/info/components/commit_refs.vue';
+
+import {
+  mockCommitReferencesResponse,
+  mockOnlyBranchesResponse,
+  mockContainingBranchesResponse,
+  refsListPropsMock,
+} from '../mock_data';
+
+Vue.use(VueApollo);
+
+jest.mock('~/alert');
+
+describe('Commit references component', () => {
+  let wrapper;
+
+  const successQueryHandler = (mockResponse) => jest.fn().mockResolvedValue(mockResponse);
+  const failedQueryHandler = jest.fn().mockRejectedValue(new Error('GraphQL error'));
+  const containingBranchesQueryHandler = successQueryHandler(mockContainingBranchesResponse);
+  const findRefsLists = () => wrapper.findAllComponents(RefsList);
+  const branchesList = () => findRefsLists().at(0);
+
+  const createComponent = async (
+    commitReferencesQueryHandler = successQueryHandler(mockCommitReferencesResponse),
+  ) => {
+    wrapper = shallowMount(CommitRefs, {
+      apolloProvider: createMockApollo([
+        [commitReferences, commitReferencesQueryHandler],
+        [containingBranchesQuery, containingBranchesQueryHandler],
+      ]),
+      provide: {
+        fullPath: '/some/project',
+        commitSha: 'xxx',
+      },
+    });
+
+    await waitForPromises();
+  };
+
+  it('renders component correcrly', async () => {
+    await createComponent();
+    expect(findRefsLists()).toHaveLength(2);
+  });
+
+  it('passes props to refs list', async () => {
+    await createComponent();
+    expect(branchesList().props()).toEqual(refsListPropsMock);
+  });
+
+  it('shows alert when response fails', async () => {
+    await createComponent(failedQueryHandler);
+    expect(createAlert).toHaveBeenCalledWith({
+      message: FETCH_COMMIT_REFERENCES_ERROR,
+      captureError: true,
+    });
+  });
+
+  it('fetches containing refs on the fetch event', async () => {
+    await createComponent();
+    branchesList().vm.$emit(FETCH_CONTAINING_REFS_EVENT);
+    await waitForPromises();
+    expect(containingBranchesQueryHandler).toHaveBeenCalledTimes(1);
+  });
+
+  it('does not render list when there is no branches or tags', async () => {
+    await createComponent(successQueryHandler(mockOnlyBranchesResponse));
+    expect(findRefsLists()).toHaveLength(1);
+  });
+});
diff --git a/spec/frontend/commit/components/refs_list_spec.js b/spec/frontend/commit/components/refs_list_spec.js
new file mode 100644
index 00000000000..d124f4a41b8
--- /dev/null
+++ b/spec/frontend/commit/components/refs_list_spec.js
@@ -0,0 +1,70 @@
+import { GlCollapse, GlButton, GlBadge, GlSkeletonLoader } from '@gitlab/ui';
+import RefsList from '~/projects/commit_box/info/components/refs_list.vue';
+import { shallowMountExtended } from 'helpers/vue_test_utils_helper';
+import {
+  CONTAINING_COMMIT,
+  FETCH_CONTAINING_REFS_EVENT,
+} from '~/projects/commit_box/info/constants';
+import { refsListPropsMock, containingBranchesMock } from '../mock_data';
+
+describe('Commit references component', () => {
+  let wrapper;
+  const createComponent = (props = {}) => {
+    wrapper = shallowMountExtended(RefsList, {
+      propsData: {
+        ...refsListPropsMock,
+        ...props,
+      },
+    });
+  };
+
+  const findTitle = () => wrapper.findByTestId('title');
+  const findCollapseButton = () => wrapper.findComponent(GlButton);
+  const findSkeletonLoader = () => wrapper.findComponent(GlSkeletonLoader);
+  const findTippingRefs = () => wrapper.findAllComponents(GlBadge);
+  const findContainingRefs = () => wrapper.findComponent(GlCollapse);
+
+  beforeEach(() => {
+    createComponent();
+  });
+
+  it('renders the namespace passed', () => {
+    expect(findTitle().text()).toEqual(refsListPropsMock.namespace);
+  });
+
+  it('renders list of tipping branches or tags', () => {
+    expect(findTippingRefs()).toHaveLength(refsListPropsMock.tippingRefs.length);
+  });
+
+  it('does not render collapse with containing branches ot tags when there is no data', () => {
+    createComponent({ hasContainingRefs: false });
+    expect(findCollapseButton().exists()).toBe(false);
+  });
+
+  it('renders collapse component if commit has containing branches', () => {
+    expect(findCollapseButton().text()).toContain(CONTAINING_COMMIT);
+  });
+
+  it('Emits event when collapse button is clicked', () => {
+    findCollapseButton().vm.$emit('click');
+    expect(wrapper.emitted()[FETCH_CONTAINING_REFS_EVENT]).toHaveLength(1);
+  });
+
+  it('Renders the list of containing branches or tags when collapse is expanded', () => {
+    createComponent({ containingRefs: containingBranchesMock });
+    const containingRefsList = findContainingRefs();
+    expect(containingRefsList.findAllComponents(GlBadge)).toHaveLength(
+      containingBranchesMock.length,
+    );
+  });
+
+  it('Does not reneder list of tipping branches or tags if there is no data', () => {
+    createComponent({ tippingRefs: [] });
+    expect(findTippingRefs().exists()).toBe(false);
+  });
+
+  it('Renders skeleton loader when isLoading prop has true value', () => {
+    createComponent({ isLoading: true, containingRefs: [] });
+    expect(findSkeletonLoader().exists()).toBe(true);
+  });
+});