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import { getSeriesLabel, makeDataSeries } from '~/helpers/monitor_helper';
describe('monitor helper', () => {
const defaultConfig = { default: true, name: 'default name' };
const name = 'data name';
const series = [[1, 1], [2, 2], [3, 3]];
describe('getSeriesLabel', () => {
const metricAttributes = { __name__: 'up', app: 'prometheus' };
it('gets a single attribute label', () => {
expect(getSeriesLabel('app', metricAttributes)).toBe('app: prometheus');
});
it('gets a templated label', () => {
expect(getSeriesLabel('{{__name__}}', metricAttributes)).toBe('up');
expect(getSeriesLabel('{{app}}', metricAttributes)).toBe('prometheus');
expect(getSeriesLabel('{{missing}}', metricAttributes)).toBe('{{missing}}');
});
it('gets a multiple label', () => {
expect(getSeriesLabel(null, metricAttributes)).toBe('__name__: up, app: prometheus');
expect(getSeriesLabel('', metricAttributes)).toBe('__name__: up, app: prometheus');
});
it('gets a simple label', () => {
expect(getSeriesLabel('A label', {})).toBe('A label');
});
});
describe('makeDataSeries', () => {
const data = ({ metric = { default_name: name }, values = series } = {}) => [
{ metric, values },
];
const expectedDataSeries = [
{
...defaultConfig,
data: series,
},
];
it('converts query results to data series', () => {
expect(makeDataSeries(data({ metric: {} }), defaultConfig)).toEqual(expectedDataSeries);
});
it('returns an empty array if no query results exist', () => {
expect(makeDataSeries([], defaultConfig)).toEqual([]);
});
it('handles multi-series query results', () => {
const expectedData = { ...expectedDataSeries[0], name: 'default name: data name' };
expect(makeDataSeries([...data(), ...data()], defaultConfig)).toEqual([
expectedData,
expectedData,
]);
});
it('updates series name from templates', () => {
const config = {
...defaultConfig,
name: '{{cmd}}',
};
const [result] = makeDataSeries([{ metric: { cmd: 'brpop' }, values: series }], config);
expect(result.name).toEqual('brpop');
});
it('supports a multi metric label template expression', () => {
const config = {
...defaultConfig,
name: '',
};
const [result] = makeDataSeries(
[
{
metric: {
backend: 'HA Server',
frontend: 'BA Server',
app: 'prometheus',
instance: 'k8 cluster 1',
},
values: series,
},
],
config,
);
expect(result.name).toBe(
'backend: HA Server, frontend: BA Server, app: prometheus, instance: k8 cluster 1',
);
});
it('supports space-padded template expressions', () => {
const config = {
...defaultConfig,
name: 'backend: {{ backend }}',
};
const [result] = makeDataSeries(
[{ metric: { backend: 'HA Server' }, values: series }],
config,
);
expect(result.name).toEqual('backend: HA Server');
});
it('supports repeated template variables', () => {
const config = { ...defaultConfig, name: '{{cmd}}, {{cmd}}' };
const [result] = makeDataSeries([{ metric: { cmd: 'brpop' }, values: series }], config);
expect(result.name).toEqual('brpop, brpop');
});
it('supports hyphenated template variables', () => {
const config = { ...defaultConfig, name: 'expired - {{ test-attribute }}' };
const [result] = makeDataSeries(
[{ metric: { 'test-attribute': 'test-attribute-value' }, values: series }],
config,
);
expect(result.name).toEqual('expired - test-attribute-value');
});
it('updates multiple series names from templates', () => {
const config = {
...defaultConfig,
name: '{{job}}: {{cmd}}',
};
const [result] = makeDataSeries(
[{ metric: { cmd: 'brpop', job: 'redis' }, values: series }],
config,
);
expect(result.name).toEqual('redis: brpop');
});
it('updates name for each series', () => {
const config = {
...defaultConfig,
name: '{{cmd}}',
};
const [firstSeries, secondSeries] = makeDataSeries(
[
{ metric: { cmd: 'brpop' }, values: series },
{ metric: { cmd: 'zrangebyscore' }, values: series },
],
config,
);
expect(firstSeries.name).toEqual('brpop');
expect(secondSeries.name).toEqual('zrangebyscore');
});
});
});
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