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import { GlGaugeChart } from '@gitlab/ui/dist/charts';
import { shallowMount } from '@vue/test-utils';
import GaugeChart from '~/monitoring/components/charts/gauge.vue';
import { gaugeChartGraphData } from '../../graph_data';
describe('Gauge Chart component', () => {
const defaultGraphData = gaugeChartGraphData();
let wrapper;
const findGaugeChart = () => wrapper.findComponent(GlGaugeChart);
const createWrapper = ({ ...graphProps } = {}) => {
wrapper = shallowMount(GaugeChart, {
propsData: {
graphData: {
...defaultGraphData,
...graphProps,
},
},
});
};
afterEach(() => {
wrapper.destroy();
wrapper = null;
});
describe('chart component', () => {
it('is rendered when props are passed', () => {
createWrapper();
expect(findGaugeChart().exists()).toBe(true);
});
});
describe('min and max', () => {
const MIN_DEFAULT = 0;
const MAX_DEFAULT = 100;
it('are passed to chart component', () => {
createWrapper();
expect(findGaugeChart().props('min')).toBe(100);
expect(findGaugeChart().props('max')).toBe(1000);
});
const invalidCases = [undefined, NaN, 'a string'];
it.each(invalidCases)(
'if min has invalid value, defaults are used for both min and max',
(invalidValue) => {
createWrapper({ minValue: invalidValue });
expect(findGaugeChart().props('min')).toBe(MIN_DEFAULT);
expect(findGaugeChart().props('max')).toBe(MAX_DEFAULT);
},
);
it.each(invalidCases)(
'if max has invalid value, defaults are used for both min and max',
(invalidValue) => {
createWrapper({ minValue: invalidValue });
expect(findGaugeChart().props('min')).toBe(MIN_DEFAULT);
expect(findGaugeChart().props('max')).toBe(MAX_DEFAULT);
},
);
it('if min is bigger than max, defaults are used for both min and max', () => {
createWrapper({ minValue: 100, maxValue: 0 });
expect(findGaugeChart().props('min')).toBe(MIN_DEFAULT);
expect(findGaugeChart().props('max')).toBe(MAX_DEFAULT);
});
});
describe('thresholds', () => {
it('thresholds are set on chart', () => {
createWrapper();
expect(findGaugeChart().props('thresholds')).toEqual([500, 800]);
});
it('when no thresholds are defined, a default threshold is defined at 95% of max_value', () => {
createWrapper({
minValue: 0,
maxValue: 100,
thresholds: {},
});
expect(findGaugeChart().props('thresholds')).toEqual([95]);
});
it('when out of min-max bounds thresholds are defined, a default threshold is defined at 95% of the range between min_value and max_value', () => {
createWrapper({
thresholds: {
values: [-10, 1500],
},
});
expect(findGaugeChart().props('thresholds')).toEqual([855]);
});
describe('when mode is absolute', () => {
it('only valid threshold values are used', () => {
createWrapper({
thresholds: {
mode: 'absolute',
values: [undefined, 10, 110, NaN, 'a string', 400],
},
});
expect(findGaugeChart().props('thresholds')).toEqual([110, 400]);
});
it('if all threshold values are invalid, a default threshold is defined at 95% of the range between min_value and max_value', () => {
createWrapper({
thresholds: {
mode: 'absolute',
values: [NaN, undefined, 'a string', 1500],
},
});
expect(findGaugeChart().props('thresholds')).toEqual([855]);
});
});
describe('when mode is percentage', () => {
it('when values outside of 0-100 bounds are used, a default threshold is defined at 95% of max_value', () => {
createWrapper({
thresholds: {
mode: 'percentage',
values: [110],
},
});
expect(findGaugeChart().props('thresholds')).toEqual([855]);
});
it('if all threshold values are invalid, a default threshold is defined at 95% of max_value', () => {
createWrapper({
thresholds: {
mode: 'percentage',
values: [NaN, undefined, 'a string', 1500],
},
});
expect(findGaugeChart().props('thresholds')).toEqual([855]);
});
});
});
describe('split (the number of ticks on the chart arc)', () => {
const SPLIT_DEFAULT = 10;
it('is passed to chart as prop', () => {
createWrapper();
expect(findGaugeChart().props('splitNumber')).toBe(20);
});
it('if not explicitly set, passes a default value to chart', () => {
createWrapper({ split: '' });
expect(findGaugeChart().props('splitNumber')).toBe(SPLIT_DEFAULT);
});
it('if set as a number that is not an integer, passes the default value to chart', () => {
createWrapper({ split: 10.5 });
expect(findGaugeChart().props('splitNumber')).toBe(SPLIT_DEFAULT);
});
it('if set as a negative number, passes the default value to chart', () => {
createWrapper({ split: -10 });
expect(findGaugeChart().props('splitNumber')).toBe(SPLIT_DEFAULT);
});
});
describe('text (the text displayed on the gauge for the current value)', () => {
it('displays the query result value when format is not set', () => {
createWrapper({ format: '' });
expect(findGaugeChart().props('text')).toBe('3');
});
it('displays the query result value when format is set to invalid value', () => {
createWrapper({ format: 'invalid' });
expect(findGaugeChart().props('text')).toBe('3');
});
it('displays a formatted query result value when format is set', () => {
createWrapper();
expect(findGaugeChart().props('text')).toBe('3kB');
});
it('displays a placeholder value when metric is empty', () => {
createWrapper({ metrics: [] });
expect(findGaugeChart().props('text')).toBe('--');
});
});
describe('value', () => {
it('correct value is passed', () => {
createWrapper();
expect(findGaugeChart().props('value')).toBe(3);
});
});
});
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