1 files changed, 85 insertions, 0 deletions
diff --git a/spec/frontend/performance_bar/index_spec.js b/spec/frontend/performance_bar/index_spec.js
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+++ b/spec/frontend/performance_bar/index_spec.js
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+import MockAdapter from 'axios-mock-adapter';
+import axios from '~/lib/utils/axios_utils';
+import '~/performance_bar/components/performance_bar_app.vue';
+import performanceBar from '~/performance_bar';
+import PerformanceBarService from '~/performance_bar/services/performance_bar_service';
+
+describe('performance bar wrapper', () => {
+  let mock;
+  let vm;
+
+  beforeEach(() => {
+    URL.createObjectURL = jest.fn();
+    performance.getEntriesByType = jest.fn().mockReturnValue([]);
+
+    // clear html so that elements from previous tests don't mess with this test
+    document.body.innerHTML = '';
+    const peekWrapper = document.createElement('div');
+
+    peekWrapper.setAttribute('id', 'js-peek');
+    peekWrapper.setAttribute('data-env', 'development');
+    peekWrapper.setAttribute('data-request-id', '123');
+    peekWrapper.setAttribute('data-peek-url', '/-/peek/results');
+    peekWrapper.setAttribute('data-profile-url', '?lineprofiler=true');
+
+    document.body.appendChild(peekWrapper);
+
+    mock = new MockAdapter(axios);
+
+    mock.onGet('/-/peek/results').reply(
+      200,
+      {
+        data: {
+          gc: {
+            invokes: 0,
+            invoke_time: '0.00',
+            use_size: 0,
+            total_size: 0,
+            total_object: 0,
+            gc_time: '0.00',
+          },
+          host: { hostname: 'web-01' },
+        },
+      },
+      {},
+    );
+
+    vm = performanceBar({ container: '#js-peek' });
+  });
+
+  afterEach(() => {
+    vm.$destroy();
+    mock.restore();
+  });
+
+  describe('loadRequestDetails', () => {
+    beforeEach(() => {
+      jest.spyOn(vm.store, 'addRequest');
+    });
+
+    it('does nothing if the request cannot be tracked', () => {
+      jest.spyOn(vm.store, 'canTrackRequest').mockImplementation(() => false);
+
+      vm.loadRequestDetails('123', 'https://gitlab.com/');
+
+      expect(vm.store.addRequest).not.toHaveBeenCalled();
+    });
+
+    it('adds the request immediately', () => {
+      vm.loadRequestDetails('123', 'https://gitlab.com/');
+
+      expect(vm.store.addRequest).toHaveBeenCalledWith('123', 'https://gitlab.com/');
+    });
+
+    it('makes an HTTP request for the request details', () => {
+      jest.spyOn(PerformanceBarService, 'fetchRequestDetails');
+
+      vm.loadRequestDetails('456', 'https://gitlab.com/');
+
+      expect(PerformanceBarService.fetchRequestDetails).toHaveBeenCalledWith(
+        '/-/peek/results',
+        '456',
+      );
+    });
+  });
+});