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import { mkdtemp, readFile } from 'fs/promises'
import { reporter } from '.'
import { setGlobal } from '../shared'
import { join } from 'path'
import { tmpdir } from 'os'
const TRACE_EVENT = {
name: 'test-span',
duration: 321,
timestamp: Date.now(),
id: 127,
startTime: Date.now(),
}
const WEBPACK_INVALIDATED_EVENT = {
name: 'webpack-invalidated',
duration: 100,
timestamp: Date.now(),
id: 112,
startTime: Date.now(),
}
describe('Trace Reporter', () => {
describe('JSON reporter', () => {
it('should write the trace events to JSON file', async () => {
const tmpDir = await mkdtemp(join(tmpdir(), 'json-reporter'))
setGlobal('distDir', tmpDir)
setGlobal('phase', 'anything')
reporter.report(TRACE_EVENT)
await reporter.flushAll()
const traceFilename = join(tmpDir, 'trace')
const traces = JSON.parse(await readFile(traceFilename, 'utf-8'))
expect(traces.length).toEqual(1)
expect(traces[0].name).toEqual('test-span')
expect(traces[0].id).toEqual(127)
expect(traces[0].duration).toEqual(321)
expect(traces[0].traceId).toBeDefined()
})
})
describe('Telemetry reporter', () => {
it('should record telemetry event', async () => {
const recordMock = jest.fn()
const telemetryMock = {
record: recordMock,
}
setGlobal('telemetry', telemetryMock)
// This should be ignored.
reporter.report(TRACE_EVENT)
expect(recordMock).toHaveBeenCalledTimes(0)
reporter.report(WEBPACK_INVALIDATED_EVENT)
expect(recordMock).toHaveBeenCalledTimes(1)
expect(recordMock).toHaveBeenCalledWith({
eventName: 'WEBPACK_INVALIDATED',
payload: {
durationInMicroseconds: 100,
},
})
})
})
})
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