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import Vue from 'vue';
import MemoryGraph from '~/vue_shared/components/memory_graph.vue';
import { mockMetrics, mockMedian, mockMedianIndex } from './mock_data';
const defaultHeight = '25';
const defaultWidth = '100';
const createComponent = () => {
const Component = Vue.extend(MemoryGraph);
return new Component({
el: document.createElement('div'),
propsData: {
metrics: [],
deploymentTime: 0,
width: '',
height: '',
pathD: '',
pathViewBox: '',
dotX: '',
dotY: '',
},
});
};
describe('MemoryGraph', () => {
let vm;
let el;
beforeEach(() => {
vm = createComponent();
el = vm.$el;
});
describe('data', () => {
it('should have default data', () => {
const data = MemoryGraph.data();
const dataValidator = (dataItem, expectedType, defaultVal) => {
expect(typeof dataItem).toBe(expectedType);
expect(dataItem).toBe(defaultVal);
};
dataValidator(data.pathD, 'string', '');
dataValidator(data.pathViewBox, 'string', '');
dataValidator(data.dotX, 'string', '');
dataValidator(data.dotY, 'string', '');
});
});
describe('computed', () => {
describe('getFormattedMedian', () => {
it('should show human readable median value based on provided median timestamp', () => {
vm.deploymentTime = mockMedian;
const formattedMedian = vm.getFormattedMedian;
expect(formattedMedian.indexOf('Deployed')).toBeGreaterThan(-1);
expect(formattedMedian.indexOf('ago')).toBeGreaterThan(-1);
});
});
});
describe('methods', () => {
describe('getMedianMetricIndex', () => {
it('should return index of closest metric timestamp to that of median', () => {
const matchingIndex = vm.getMedianMetricIndex(mockMedian, mockMetrics);
expect(matchingIndex).toBe(mockMedianIndex);
});
});
describe('getGraphPlotValues', () => {
it('should return Object containing values to plot graph', () => {
const plotValues = vm.getGraphPlotValues(mockMedian, mockMetrics);
expect(plotValues.pathD).toBeDefined();
expect(Array.isArray(plotValues.pathD)).toBeTruthy();
expect(plotValues.pathViewBox).toBeDefined();
expect(typeof plotValues.pathViewBox).toBe('object');
expect(plotValues.dotX).toBeDefined();
expect(typeof plotValues.dotX).toBe('number');
expect(plotValues.dotY).toBeDefined();
expect(typeof plotValues.dotY).toBe('number');
});
});
});
describe('template', () => {
it('should render template elements correctly', () => {
expect(el.classList.contains('memory-graph-container')).toBeTruthy();
expect(el.querySelector('svg')).toBeDefined();
});
it('should render graph when renderGraph is called internally', (done) => {
const { pathD, pathViewBox, dotX, dotY } = vm.getGraphPlotValues(mockMedian, mockMetrics);
vm.height = defaultHeight;
vm.width = defaultWidth;
vm.pathD = `M ${pathD}`;
vm.pathViewBox = `0 0 ${pathViewBox.lineWidth} ${pathViewBox.diff}`;
vm.dotX = dotX;
vm.dotY = dotY;
Vue.nextTick(() => {
const svgEl = el.querySelector('svg');
expect(svgEl).toBeDefined();
expect(svgEl.getAttribute('height')).toBe(defaultHeight);
expect(svgEl.getAttribute('width')).toBe(defaultWidth);
const pathEl = el.querySelector('path');
expect(pathEl).toBeDefined();
expect(pathEl.getAttribute('d')).toBe(`M ${pathD}`);
expect(pathEl.getAttribute('viewBox')).toBe(`0 0 ${pathViewBox.lineWidth} ${pathViewBox.diff}`);
const circleEl = el.querySelector('circle');
expect(circleEl).toBeDefined();
expect(circleEl.getAttribute('r')).toBe('1.5');
expect(circleEl.getAttribute('transform')).toBe('translate(0 -1)');
expect(circleEl.getAttribute('cx')).toBe(`${dotX}`);
expect(circleEl.getAttribute('cy')).toBe(`${dotY}`);
done();
});
});
});
});
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