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diff --git a/spec/javascripts/related_merge_requests/components/related_merge_requests_spec.js b/spec/javascripts/related_merge_requests/components/related_merge_requests_spec.js
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+++ b/spec/javascripts/related_merge_requests/components/related_merge_requests_spec.js
@@ -0,0 +1,89 @@
+import { mount, createLocalVue } from '@vue/test-utils';
+import MockAdapter from 'axios-mock-adapter';
+import axios from '~/lib/utils/axios_utils';
+import RelatedIssuableItem from '~/vue_shared/components/issue/related_issuable_item.vue';
+import RelatedMergeRequests from '~/related_merge_requests/components/related_merge_requests.vue';
+import createStore from '~/related_merge_requests/store/index';
+
+const FIXTURE_PATH = 'issues/related_merge_requests.json';
+const API_ENDPOINT = '/api/v4/projects/2/issues/33/related_merge_requests';
+const localVue = createLocalVue();
+
+describe('RelatedMergeRequests', () => {
+  let wrapper;
+  let mock;
+  let mockData;
+
+  beforeEach(done => {
+    loadFixtures(FIXTURE_PATH);
+    mockData = getJSONFixture(FIXTURE_PATH);
+    mock = new MockAdapter(axios);
+    mock.onGet(`${API_ENDPOINT}?per_page=100`).reply(200, mockData, { 'x-total': 2 });
+
+    wrapper = mount(RelatedMergeRequests, {
+      localVue,
+      sync: false,
+      store: createStore(),
+      propsData: {
+        endpoint: API_ENDPOINT,
+        projectNamespace: 'gitlab-org',
+        projectPath: 'gitlab-ce',
+      },
+    });
+
+    setTimeout(done);
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+    mock.restore();
+  });
+
+  describe('methods', () => {
+    describe('getAssignees', () => {
+      const assignees = [{ name: 'foo' }, { name: 'bar' }];
+
+      describe('when there is assignees array', () => {
+        it('should return assignees array', () => {
+          const mr = { assignees };
+
+          expect(wrapper.vm.getAssignees(mr)).toEqual(assignees);
+        });
+      });
+
+      it('should return an array with single assingee', () => {
+        const mr = { assignee: assignees[0] };
+
+        expect(wrapper.vm.getAssignees(mr)).toEqual([assignees[0]]);
+      });
+
+      it('should return empty array when assignee is not set', () => {
+        expect(wrapper.vm.getAssignees({})).toEqual([]);
+        expect(wrapper.vm.getAssignees({ assignee: null })).toEqual([]);
+      });
+    });
+  });
+
+  describe('template', () => {
+    it('should render related merge request items', () => {
+      expect(wrapper.find('.js-items-count').text()).toEqual('2');
+      expect(wrapper.findAll(RelatedIssuableItem).length).toEqual(2);
+
+      const props = wrapper
+        .findAll(RelatedIssuableItem)
+        .at(1)
+        .props();
+      const data = mockData[1];
+
+      expect(props.idKey).toEqual(data.id);
+      expect(props.pathIdSeparator).toEqual('!');
+      expect(props.pipelineStatus).toBe(data.head_pipeline.detailed_status);
+      expect(props.assignees).toEqual([data.assignee]);
+      expect(props.isMergeRequest).toBe(true);
+      expect(props.confidential).toEqual(false);
+      expect(props.title).toEqual(data.title);
+      expect(props.state).toEqual(data.state);
+      expect(props.createdAt).toEqual(data.created_at);
+    });
+  });
+});