1 files changed, 43 insertions, 6 deletions

diff --git a/spec/frontend/projects/settings/repository/branch_rules/app_spec.js b/spec/frontend/projects/settings/repository/branch_rules/app_spec.js
index e12c3aeedd6..e920cd48163 100644
--- a/spec/frontend/projects/settings/repository/branch_rules/app_spec.js
+++ b/spec/frontend/projects/settings/repository/branch_rules/app_spec.js
@@ -1,18 +1,55 @@
+import Vue from 'vue';
+import VueApollo from 'vue-apollo';
+import createMockApollo from 'helpers/mock_apollo_helper';
+import waitForPromises from 'helpers/wait_for_promises';
 import { mountExtended } from 'helpers/vue_test_utils_helper';
-import BranchRules from '~/projects/settings/repository/branch_rules/app.vue';
+import BranchRules, { i18n } from '~/projects/settings/repository/branch_rules/app.vue';
+import BranchRule from '~/projects/settings/repository/branch_rules/components/branch_rule.vue';
+import branchRulesQuery from '~/projects/settings/repository/branch_rules/graphql/queries/branch_rules.query.graphql';
+import createFlash from '~/flash';
+import { branchRulesMockResponse, propsDataMock } from './mock_data';
+
+jest.mock('~/flash');
+
+Vue.use(VueApollo);
 
 describe('Branch rules app', () => {
   let wrapper;
+  let fakeApollo;
+
+  const branchRulesQuerySuccessHandler = jest.fn().mockResolvedValue(branchRulesMockResponse);
+
+  const createComponent = async ({ queryHandler = branchRulesQuerySuccessHandler } = {}) => {
+    fakeApollo = createMockApollo([[branchRulesQuery, queryHandler]]);
+
+    wrapper = mountExtended(BranchRules, {
+      apolloProvider: fakeApollo,
+      propsData: {
+        ...propsDataMock,
+      },
+    });
 
-  const createComponent = () => {
-    wrapper = mountExtended(BranchRules);
+    await waitForPromises();
   };
 
-  const findTitle = () => wrapper.find('strong');
+  const findAllBranchRules = () => wrapper.findAllComponents(BranchRule);
+  const findEmptyState = () => wrapper.findByTestId('empty');
 
   beforeEach(() => createComponent());
 
-  it('renders a title', () => {
-    expect(findTitle().text()).toBe('Branch');
+  it('displays an error if branch rules query fails', async () => {
+    await createComponent({ queryHandler: jest.fn().mockRejectedValue() });
+    expect(createFlash).toHaveBeenCalledWith({ message: i18n.queryError });
+  });
+
+  it('displays an empty state if no branch rules are present', async () => {
+    await createComponent({ queryHandler: jest.fn().mockRejectedValue() });
+    expect(findEmptyState().text()).toBe(i18n.emptyState);
+  });
+
+  it('renders branch rules', () => {
+    const { nodes } = branchRulesMockResponse.data.project.branchRules;
+    expect(findAllBranchRules().at(0).text()).toBe(nodes[0].name);
+    expect(findAllBranchRules().at(1).text()).toBe(nodes[1].name);
   });
 });