1 files changed, 193 insertions, 0 deletions
diff --git a/spec/frontend/runner/components/runner_projects_spec.js b/spec/frontend/runner/components/runner_projects_spec.js
new file mode 100644
index 00000000000..68a2130d6d9
--- /dev/null
+++ b/spec/frontend/runner/components/runner_projects_spec.js
@@ -0,0 +1,193 @@
+import { GlSkeletonLoading } from '@gitlab/ui';
+import Vue from 'vue';
+import VueApollo from 'vue-apollo';
+import { shallowMountExtended } from 'helpers/vue_test_utils_helper';
+import createMockApollo from 'helpers/mock_apollo_helper';
+import waitForPromises from 'helpers/wait_for_promises';
+import { createAlert } from '~/flash';
+import { sprintf } from '~/locale';
+import {
+  I18N_ASSIGNED_PROJECTS,
+  I18N_NONE,
+  RUNNER_DETAILS_PROJECTS_PAGE_SIZE,
+} from '~/runner/constants';
+import RunnerProjects from '~/runner/components/runner_projects.vue';
+import RunnerAssignedItem from '~/runner/components/runner_assigned_item.vue';
+import RunnerPagination from '~/runner/components/runner_pagination.vue';
+import { captureException } from '~/runner/sentry_utils';
+
+import getRunnerProjectsQuery from '~/runner/graphql/get_runner_projects.query.graphql';
+
+import { runnerData, runnerProjectsData } from '../mock_data';
+
+jest.mock('~/flash');
+jest.mock('~/runner/sentry_utils');
+
+const mockRunner = runnerData.data.runner;
+const mockRunnerWithProjects = runnerProjectsData.data.runner;
+const mockProjects = mockRunnerWithProjects.projects.nodes;
+
+Vue.use(VueApollo);
+
+describe('RunnerProjects', () => {
+  let wrapper;
+  let mockRunnerProjectsQuery;
+
+  const findHeading = () => wrapper.find('h3');
+  const findGlSkeletonLoading = () => wrapper.findComponent(GlSkeletonLoading);
+  const findRunnerAssignedItems = () => wrapper.findAllComponents(RunnerAssignedItem);
+  const findRunnerPagination = () => wrapper.findComponent(RunnerPagination);
+
+  const createComponent = ({ mountFn = shallowMountExtended } = {}) => {
+    wrapper = mountFn(RunnerProjects, {
+      apolloProvider: createMockApollo([[getRunnerProjectsQuery, mockRunnerProjectsQuery]]),
+      propsData: {
+        runner: mockRunner,
+      },
+    });
+  };
+
+  beforeEach(() => {
+    mockRunnerProjectsQuery = jest.fn();
+  });
+
+  afterEach(() => {
+    mockRunnerProjectsQuery.mockReset();
+    wrapper.destroy();
+  });
+
+  it('Requests runner projects', async () => {
+    createComponent();
+
+    await waitForPromises();
+
+    expect(mockRunnerProjectsQuery).toHaveBeenCalledTimes(1);
+    expect(mockRunnerProjectsQuery).toHaveBeenCalledWith({
+      id: mockRunner.id,
+      first: RUNNER_DETAILS_PROJECTS_PAGE_SIZE,
+    });
+  });
+
+  describe('When there are projects assigned', () => {
+    beforeEach(async () => {
+      mockRunnerProjectsQuery.mockResolvedValueOnce(runnerProjectsData);
+
+      createComponent();
+      await waitForPromises();
+    });
+
+    it('Shows a heading', async () => {
+      const expected = sprintf(I18N_ASSIGNED_PROJECTS, { projectCount: mockProjects.length });
+
+      expect(findHeading().text()).toBe(expected);
+    });
+
+    it('Shows projects', () => {
+      expect(findRunnerAssignedItems().length).toBe(mockProjects.length);
+    });
+
+    it('Shows a project', () => {
+      const item = findRunnerAssignedItems().at(0);
+      const { webUrl, name, nameWithNamespace, avatarUrl } = mockProjects[0];
+
+      expect(item.props()).toMatchObject({
+        href: webUrl,
+        name,
+        fullName: nameWithNamespace,
+        avatarUrl,
+      });
+    });
+
+    describe('When "Next" page is clicked', () => {
+      beforeEach(async () => {
+        findRunnerPagination().vm.$emit('input', { page: 3, after: 'AFTER_CURSOR' });
+
+        await waitForPromises();
+      });
+
+      it('A new page is requested', () => {
+        expect(mockRunnerProjectsQuery).toHaveBeenCalledTimes(2);
+        expect(mockRunnerProjectsQuery).toHaveBeenLastCalledWith({
+          id: mockRunner.id,
+          first: RUNNER_DETAILS_PROJECTS_PAGE_SIZE,
+          after: 'AFTER_CURSOR',
+        });
+      });
+
+      it('When "Prev" page is clicked, the previous page is requested', async () => {
+        findRunnerPagination().vm.$emit('input', { page: 2, before: 'BEFORE_CURSOR' });
+
+        await waitForPromises();
+
+        expect(mockRunnerProjectsQuery).toHaveBeenCalledTimes(3);
+        expect(mockRunnerProjectsQuery).toHaveBeenLastCalledWith({
+          id: mockRunner.id,
+          last: RUNNER_DETAILS_PROJECTS_PAGE_SIZE,
+          before: 'BEFORE_CURSOR',
+        });
+      });
+    });
+  });
+
+  describe('When loading', () => {
+    it('shows loading indicator and no other content', () => {
+      createComponent();
+
+      expect(findGlSkeletonLoading().exists()).toBe(true);
+
+      expect(wrapper.findByText(I18N_NONE).exists()).toBe(false);
+      expect(findRunnerAssignedItems().length).toBe(0);
+
+      expect(findRunnerPagination().attributes('disabled')).toBe('true');
+    });
+  });
+
+  describe('When there are no projects', () => {
+    beforeEach(async () => {
+      mockRunnerProjectsQuery.mockResolvedValueOnce({
+        data: {
+          runner: {
+            id: mockRunner.id,
+            projectCount: 0,
+            projects: {
+              nodes: [],
+              pageInfo: {
+                hasNextPage: false,
+                hasPreviousPage: false,
+                startCursor: '',
+                endCursor: '',
+              },
+            },
+          },
+        },
+      });
+
+      createComponent();
+      await waitForPromises();
+    });
+
+    it('Shows a "None" label', () => {
+      expect(wrapper.findByText(I18N_NONE).exists()).toBe(true);
+    });
+  });
+
+  describe('When an error occurs', () => {
+    beforeEach(async () => {
+      mockRunnerProjectsQuery.mockRejectedValue(new Error('Error!'));
+
+      createComponent();
+      await waitForPromises();
+    });
+
+    it('shows an error', () => {
+      expect(createAlert).toHaveBeenCalled();
+    });
+
+    it('reports an error', () => {
+      expect(captureException).toHaveBeenCalledWith({
+        component: 'RunnerProjects',
+        error: expect.any(Error),
+      });
+    });
+  });
+});