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import { shallowMount } from '@vue/test-utils';
import { GlSingleStat } from '@gitlab/ui/dist/charts';
import SingleStatChart from '~/monitoring/components/charts/single_stat.vue';
import { singleStatGraphData } from '../../graph_data';
describe('Single Stat Chart component', () => {
let wrapper;
const createComponent = (props = {}) => {
wrapper = shallowMount(SingleStatChart, {
propsData: {
graphData: singleStatGraphData({}, { unit: 'MB' }),
...props,
},
});
};
const findChart = () => wrapper.find(GlSingleStat);
beforeEach(() => {
createComponent();
});
afterEach(() => {
wrapper.destroy();
});
describe('computed', () => {
describe('statValue', () => {
it('should display the correct value', () => {
expect(findChart().props('value')).toBe('1.00');
});
it('should display the correct value unit', () => {
expect(findChart().props('unit')).toBe('MB');
});
it('should change the value representation to a percentile one', () => {
createComponent({
graphData: singleStatGraphData({ max_value: 120 }, { value: 91 }),
});
expect(findChart().props('value')).toBe('75.83');
expect(findChart().props('unit')).toBe('%');
});
it('should display NaN for non numeric maxValue values', () => {
createComponent({
graphData: singleStatGraphData({ max_value: 'not a number' }),
});
expect(findChart().props('value')).toContain('NaN');
});
it('should display NaN for missing query values', () => {
createComponent({
graphData: singleStatGraphData({ max_value: 120 }, { value: 'NaN' }),
});
expect(findChart().props('value')).toContain('NaN');
});
it('should not display `unit` when `unit` is undefined', () => {
createComponent({
graphData: singleStatGraphData({}, { unit: undefined }),
});
expect(findChart().props('value')).not.toContain('undefined');
});
it('should not display `unit` when `unit` is null', () => {
createComponent({
graphData: singleStatGraphData({}, { unit: null }),
});
expect(findChart().props('value')).not.toContain('null');
});
describe('when a field attribute is set', () => {
it('displays a label value instead of metric value when field attribute is used', () => {
createComponent({
graphData: singleStatGraphData({ field: 'job' }, { isVector: true }),
});
expect(findChart().props('value')).toContain('prometheus');
});
it('displays No data to display if field attribute is not present', () => {
createComponent({
graphData: singleStatGraphData({ field: 'this-does-not-exist' }),
});
expect(findChart().props('value')).toContain('No data to display');
});
});
});
});
});
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