Commit 4c58fd82 authored by kushalpandya's avatar kushalpandya

Tests for `PrometheusMetrics` class

parent afc1a67d
export const metrics = [
{
group: 'Kubernetes',
priority: 1,
active_metrics: 4,
metrics_missing_requirements: 0,
},
{
group: 'HAProxy',
priority: 2,
active_metrics: 3,
metrics_missing_requirements: 0,
},
{
group: 'Apache',
priority: 3,
active_metrics: 5,
metrics_missing_requirements: 0,
},
];
export const missingVarMetrics = [
{
group: 'Kubernetes',
priority: 1,
active_metrics: 4,
metrics_missing_requirements: 0,
},
{
group: 'HAProxy',
priority: 2,
active_metrics: 3,
metrics_missing_requirements: 1,
},
{
group: 'Apache',
priority: 3,
active_metrics: 5,
metrics_missing_requirements: 3,
},
];
import PrometheusMetrics from '~/prometheus_metrics/prometheus_metrics';
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('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($metricsListLi.first().find('.badge-count').text()).toEqual(`${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();
});
});
});
});
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment