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import Vue from 'vue';
import memoryUsageComponent from '~/vue_merge_request_widget/components/mr_widget_memory_usage';
import MRWidgetService from '~/vue_merge_request_widget/services/mr_widget_service';
const url = '/root/acets-review-apps/environments/15/deployments/1/metrics';
const metricsMockData = {
success: true,
metrics: {
memory_values: [
{
metric: {},
values: [
[1493716685, '4.30859375'],
],
},
],
},
last_update: '2017-05-02T12:34:49.628Z',
deployment_time: 1493718485,
};
const createComponent = () => {
const Component = Vue.extend(memoryUsageComponent);
return new Component({
el: document.createElement('div'),
propsData: {
metricsUrl: url,
memoryMetrics: [],
deploymentTime: 0,
hasMetrics: false,
loadFailed: false,
loadingMetrics: true,
backOffRequestCounter: 0,
},
});
};
const messages = {
loadingMetrics: 'Loading deployment statistics.',
hasMetrics: 'Deployment memory usage:',
loadFailed: 'Failed to load deployment statistics.',
metricsUnavailable: 'Deployment statistics are not available currently.',
};
describe('MemoryUsage', () => {
let vm;
let el;
beforeEach(() => {
vm = createComponent();
el = vm.$el;
});
describe('props', () => {
it('should have props with defaults', () => {
const { metricsUrl } = memoryUsageComponent.props;
const MetricsUrlTypeClass = metricsUrl.type;
Vue.nextTick(() => {
expect(new MetricsUrlTypeClass() instanceof String).toBeTruthy();
expect(metricsUrl.required).toBeTruthy();
});
});
});
describe('data', () => {
it('should have default data', () => {
const data = memoryUsageComponent.data();
expect(Array.isArray(data.memoryMetrics)).toBeTruthy();
expect(data.memoryMetrics.length).toBe(0);
expect(typeof data.deploymentTime).toBe('number');
expect(data.deploymentTime).toBe(0);
expect(typeof data.hasMetrics).toBe('boolean');
expect(data.hasMetrics).toBeFalsy();
expect(typeof data.loadFailed).toBe('boolean');
expect(data.loadFailed).toBeFalsy();
expect(typeof data.loadingMetrics).toBe('boolean');
expect(data.loadingMetrics).toBeTruthy();
expect(typeof data.backOffRequestCounter).toBe('number');
expect(data.backOffRequestCounter).toBe(0);
});
});
describe('methods', () => {
const { metrics, deployment_time } = metricsMockData;
describe('computeGraphData', () => {
it('should populate sparkline graph', () => {
vm.computeGraphData(metrics, deployment_time);
const { hasMetrics, memoryMetrics, deploymentTime } = vm;
expect(hasMetrics).toBeTruthy();
expect(memoryMetrics.length > 0).toBeTruthy();
expect(deploymentTime).toEqual(deployment_time);
});
});
describe('loadMetrics', () => {
const returnServicePromise = () => new Promise((resolve) => {
resolve({
json() {
return metricsMockData;
},
});
});
it('should load metrics data using MRWidgetService', (done) => {
spyOn(MRWidgetService, 'fetchMetrics').and.returnValue(returnServicePromise(true));
spyOn(vm, 'computeGraphData');
vm.loadMetrics();
setTimeout(() => {
expect(MRWidgetService.fetchMetrics).toHaveBeenCalledWith(url);
expect(vm.computeGraphData).toHaveBeenCalledWith(metrics, deployment_time);
done();
}, 333);
});
});
});
describe('template', () => {
it('should render template elements correctly', () => {
expect(el.classList.contains('mr-memory-usage')).toBeTruthy();
expect(el.querySelector('.js-usage-info')).toBeDefined();
});
it('should show loading metrics message while metrics are being loaded', (done) => {
vm.loadingMetrics = true;
vm.hasMetrics = false;
vm.loadFailed = false;
Vue.nextTick(() => {
expect(el.querySelector('.js-usage-info.usage-info-loading')).toBeDefined();
expect(el.querySelector('.js-usage-info .usage-info-load-spinner')).toBeDefined();
expect(el.querySelector('.js-usage-info').innerText).toContain(messages.loadingMetrics);
done();
});
});
it('should show deployment memory usage when metrics are loaded', (done) => {
vm.loadingMetrics = false;
vm.hasMetrics = true;
vm.loadFailed = false;
Vue.nextTick(() => {
expect(el.querySelector('.memory-graph-container')).toBeDefined();
expect(el.querySelector('.js-usage-info').innerText).toContain(messages.hasMetrics);
done();
});
});
it('should show failure message when metrics loading failed', (done) => {
vm.loadingMetrics = false;
vm.hasMetrics = false;
vm.loadFailed = true;
Vue.nextTick(() => {
expect(el.querySelector('.js-usage-info.usage-info-failed')).toBeDefined();
expect(el.querySelector('.js-usage-info').innerText).toContain(messages.loadFailed);
done();
});
});
it('should show metrics unavailable message when metrics loading failed', (done) => {
vm.loadingMetrics = false;
vm.hasMetrics = false;
vm.loadFailed = false;
Vue.nextTick(() => {
expect(el.querySelector('.js-usage-info.usage-info-unavailable')).toBeDefined();
expect(el.querySelector('.js-usage-info').innerText).toContain(messages.metricsUnavailable);
done();
});
});
});
});
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