diff options
Diffstat (limited to 'spec/frontend/prometheus_metrics/prometheus_metrics_spec.js')
| -rw-r--r-- | spec/frontend/prometheus_metrics/prometheus_metrics_spec.js | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/spec/frontend/prometheus_metrics/prometheus_metrics_spec.js b/spec/frontend/prometheus_metrics/prometheus_metrics_spec.js new file mode 100644 index 00000000000..437a2116f5c --- /dev/null +++ b/spec/frontend/prometheus_metrics/prometheus_metrics_spec.js @@ -0,0 +1,178 @@ +import MockAdapter from 'axios-mock-adapter'; +import axios from '~/lib/utils/axios_utils'; +import PrometheusMetrics from '~/prometheus_metrics/prometheus_metrics'; +import PANEL_STATE from '~/prometheus_metrics/constants'; +import { metrics2 as metrics, missingVarMetrics } from './mock_data'; + +describe('PrometheusMetrics', () => { + const FIXTURE = 'services/prometheus/prometheus_service.html'; + preloadFixtures(FIXTURE); + + beforeEach(() => { + loadFixtures(FIXTURE); + }); + + describe('constructor', () => { + let prometheusMetrics; + + beforeEach(() => { + prometheusMetrics = new PrometheusMetrics('.js-prometheus-metrics-monitoring'); + }); + + it('should initialize wrapper element refs on class object', () => { + expect(prometheusMetrics.$wrapper).toBeDefined(); + expect(prometheusMetrics.$monitoredMetricsPanel).toBeDefined(); + expect(prometheusMetrics.$monitoredMetricsCount).toBeDefined(); + expect(prometheusMetrics.$monitoredMetricsLoading).toBeDefined(); + expect(prometheusMetrics.$monitoredMetricsEmpty).toBeDefined(); + expect(prometheusMetrics.$monitoredMetricsList).toBeDefined(); + expect(prometheusMetrics.$missingEnvVarPanel).toBeDefined(); + expect(prometheusMetrics.$panelToggle).toBeDefined(); + expect(prometheusMetrics.$missingEnvVarMetricCount).toBeDefined(); + expect(prometheusMetrics.$missingEnvVarMetricsList).toBeDefined(); + }); + + it('should initialize metadata on class object', () => { + expect(prometheusMetrics.backOffRequestCounter).toEqual(0); + expect(prometheusMetrics.activeMetricsEndpoint).toContain('/test'); + }); + }); + + describe('showMonitoringMetricsPanelState', () => { + let prometheusMetrics; + + beforeEach(() => { + prometheusMetrics = new PrometheusMetrics('.js-prometheus-metrics-monitoring'); + }); + + it('should show loading state when called with `loading`', () => { + prometheusMetrics.showMonitoringMetricsPanelState(PANEL_STATE.LOADING); + + expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeFalsy(); + expect(prometheusMetrics.$monitoredMetricsEmpty.hasClass('hidden')).toBeTruthy(); + expect(prometheusMetrics.$monitoredMetricsList.hasClass('hidden')).toBeTruthy(); + }); + + it('should show metrics list when called with `list`', () => { + prometheusMetrics.showMonitoringMetricsPanelState(PANEL_STATE.LIST); + + expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeTruthy(); + expect(prometheusMetrics.$monitoredMetricsEmpty.hasClass('hidden')).toBeTruthy(); + expect(prometheusMetrics.$monitoredMetricsList.hasClass('hidden')).toBeFalsy(); + }); + + it('should show empty state when called with `empty`', () => { + prometheusMetrics.showMonitoringMetricsPanelState(PANEL_STATE.EMPTY); + + expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeTruthy(); + expect(prometheusMetrics.$monitoredMetricsEmpty.hasClass('hidden')).toBeFalsy(); + expect(prometheusMetrics.$monitoredMetricsList.hasClass('hidden')).toBeTruthy(); + }); + }); + + describe('populateActiveMetrics', () => { + let prometheusMetrics; + + beforeEach(() => { + prometheusMetrics = new PrometheusMetrics('.js-prometheus-metrics-monitoring'); + }); + + it('should show monitored metrics list', () => { + prometheusMetrics.populateActiveMetrics(metrics); + + const $metricsListLi = prometheusMetrics.$monitoredMetricsList.find('li'); + + expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeTruthy(); + expect(prometheusMetrics.$monitoredMetricsList.hasClass('hidden')).toBeFalsy(); + + expect(prometheusMetrics.$monitoredMetricsCount.text()).toEqual( + '3 exporters with 12 metrics were found', + ); + + expect($metricsListLi.length).toEqual(metrics.length); + expect( + $metricsListLi + .first() + .find('.badge') + .text(), + ).toEqual(`${metrics[0].active_metrics}`); + }); + + it('should show missing environment variables list', () => { + prometheusMetrics.populateActiveMetrics(missingVarMetrics); + + expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeTruthy(); + expect(prometheusMetrics.$missingEnvVarPanel.hasClass('hidden')).toBeFalsy(); + + expect(prometheusMetrics.$missingEnvVarMetricCount.text()).toEqual('2'); + expect(prometheusMetrics.$missingEnvVarPanel.find('li').length).toEqual(2); + expect(prometheusMetrics.$missingEnvVarPanel.find('.flash-container')).toBeDefined(); + }); + }); + + describe('loadActiveMetrics', () => { + let prometheusMetrics; + let mock; + + function mockSuccess() { + mock.onGet(prometheusMetrics.activeMetricsEndpoint).reply(200, { + data: metrics, + success: true, + }); + } + + function mockError() { + mock.onGet(prometheusMetrics.activeMetricsEndpoint).networkError(); + } + + beforeEach(() => { + jest.spyOn(axios, 'get'); + + prometheusMetrics = new PrometheusMetrics('.js-prometheus-metrics-monitoring'); + + mock = new MockAdapter(axios); + }); + + afterEach(() => { + mock.restore(); + }); + + it('should show loader animation while response is being loaded and hide it when request is complete', done => { + mockSuccess(); + + prometheusMetrics.loadActiveMetrics(); + + expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeFalsy(); + expect(axios.get).toHaveBeenCalledWith(prometheusMetrics.activeMetricsEndpoint); + + setImmediate(() => { + expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeTruthy(); + done(); + }); + }); + + it('should show empty state if response failed to load', done => { + mockError(); + + prometheusMetrics.loadActiveMetrics(); + + setImmediate(() => { + expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeTruthy(); + expect(prometheusMetrics.$monitoredMetricsEmpty.hasClass('hidden')).toBeFalsy(); + done(); + }); + }); + + it('should populate metrics list once response is loaded', done => { + jest.spyOn(prometheusMetrics, 'populateActiveMetrics').mockImplementation(); + mockSuccess(); + + prometheusMetrics.loadActiveMetrics(); + + setImmediate(() => { + expect(prometheusMetrics.populateActiveMetrics).toHaveBeenCalledWith(metrics); + done(); + }); + }); + }); +}); |