import PrometheusMetrics from '~/prometheus_metrics/prometheus_metrics'; import PANEL_STATE from '~/prometheus_metrics/constants'; import { metrics, missingVarMetrics } from './mock_data'; describe('PrometheusMetrics', () => { const FIXTURE = 'services/prometheus_service.html.raw'; 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.$monitoredMetricsCount.text()).toEqual('12'); expect($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; beforeEach(() => { prometheusMetrics = new PrometheusMetrics('.js-prometheus-metrics-monitoring'); }); it('should show loader animation while response is being loaded and hide it when request is complete', (done) => { const deferred = $.Deferred(); spyOn($, 'getJSON').and.returnValue(deferred.promise()); prometheusMetrics.loadActiveMetrics(); expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeFalsy(); expect($.getJSON).toHaveBeenCalledWith(prometheusMetrics.activeMetricsEndpoint); deferred.resolve({ data: metrics, success: true }); setTimeout(() => { expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeTruthy(); done(); }); }); it('should show empty state if response failed to load', (done) => { const deferred = $.Deferred(); spyOn($, 'getJSON').and.returnValue(deferred.promise()); spyOn(prometheusMetrics, 'populateActiveMetrics'); prometheusMetrics.loadActiveMetrics(); deferred.reject(); setTimeout(() => { expect(prometheusMetrics.$monitoredMetricsLoading.hasClass('hidden')).toBeTruthy(); expect(prometheusMetrics.$monitoredMetricsEmpty.hasClass('hidden')).toBeFalsy(); done(); }); }); it('should populate metrics list once response is loaded', (done) => { const deferred = $.Deferred(); spyOn($, 'getJSON').and.returnValue(deferred.promise()); spyOn(prometheusMetrics, 'populateActiveMetrics'); prometheusMetrics.loadActiveMetrics(); deferred.resolve({ data: metrics, success: true }); setTimeout(() => { expect(prometheusMetrics.populateActiveMetrics).toHaveBeenCalledWith(metrics); done(); }); }); }); });