1 files changed, 87 insertions, 0 deletions
diff --git a/spec/frontend/pipelines/components/jobs/failed_jobs_app_spec.js b/spec/frontend/pipelines/components/jobs/failed_jobs_app_spec.js
new file mode 100644
index 00000000000..3b5632a8a4e
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+++ b/spec/frontend/pipelines/components/jobs/failed_jobs_app_spec.js
@@ -0,0 +1,87 @@
+import { GlLoadingIcon } from '@gitlab/ui';
+import { shallowMount } from '@vue/test-utils';
+import Vue from 'vue';
+import VueApollo from 'vue-apollo';
+import createMockApollo from 'helpers/mock_apollo_helper';
+import waitForPromises from 'helpers/wait_for_promises';
+import createFlash from '~/flash';
+import FailedJobsApp from '~/pipelines/components/jobs/failed_jobs_app.vue';
+import FailedJobsTable from '~/pipelines/components/jobs/failed_jobs_table.vue';
+import GetFailedJobsQuery from '~/pipelines/graphql/queries/get_failed_jobs.query.graphql';
+import { mockFailedJobsQueryResponse, mockFailedJobsSummaryData } from '../../mock_data';
+
+Vue.use(VueApollo);
+
+jest.mock('~/flash');
+
+describe('Failed Jobs App', () => {
+  let wrapper;
+  let resolverSpy;
+
+  const findLoadingSpinner = () => wrapper.findComponent(GlLoadingIcon);
+  const findJobsTable = () => wrapper.findComponent(FailedJobsTable);
+
+  const createMockApolloProvider = (resolver) => {
+    const requestHandlers = [[GetFailedJobsQuery, resolver]];
+
+    return createMockApollo(requestHandlers);
+  };
+
+  const createComponent = (resolver, failedJobsSummaryData = mockFailedJobsSummaryData) => {
+    wrapper = shallowMount(FailedJobsApp, {
+      provide: {
+        fullPath: 'root/ci-project',
+        pipelineIid: 1,
+      },
+      propsData: {
+        failedJobsSummary: failedJobsSummaryData,
+      },
+      apolloProvider: createMockApolloProvider(resolver),
+    });
+  };
+
+  beforeEach(() => {
+    resolverSpy = jest.fn().mockResolvedValue(mockFailedJobsQueryResponse);
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  describe('loading spinner', () => {
+    beforeEach(() => {
+      createComponent(resolverSpy);
+    });
+
+    it('displays loading spinner when fetching failed jobs', () => {
+      expect(findLoadingSpinner().exists()).toBe(true);
+    });
+
+    it('hides loading spinner after the failed jobs have been fetched', async () => {
+      await waitForPromises();
+
+      expect(findLoadingSpinner().exists()).toBe(false);
+    });
+  });
+
+  it('displays the failed jobs table', async () => {
+    createComponent(resolverSpy);
+
+    await waitForPromises();
+
+    expect(findJobsTable().exists()).toBe(true);
+    expect(createFlash).not.toHaveBeenCalled();
+  });
+
+  it('handles query fetch error correctly', async () => {
+    resolverSpy = jest.fn().mockRejectedValue(new Error('GraphQL error'));
+
+    createComponent(resolverSpy);
+
+    await waitForPromises();
+
+    expect(createFlash).toHaveBeenCalledWith({
+      message: 'There was a problem fetching the failed jobs.',
+    });
+  });
+});