forked from vercel/next.js
/
telemetry.test.ts
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/
telemetry.test.ts
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import { createNext, FileRef } from 'e2e-utils'
import { NextInstance } from 'test/lib/next-modes/base'
import { findAllTelemetryEvents } from 'next-test-utils'
import { join } from 'path'
const mockedGoogleFontResponses = require.resolve(
'./google-font-mocked-responses.js'
)
describe('@next/font used telemetry', () => {
let next: NextInstance
beforeAll(async () => {
next = await createNext({
files: {
pages: new FileRef(join(__dirname, 'telemetry/pages')),
'next.config.js': new FileRef(
join(__dirname, 'telemetry/next.config.js')
),
},
dependencies: {
'@next/font': 'canary',
},
env: {
NEXT_FONT_GOOGLE_MOCKED_RESPONSES: mockedGoogleFontResponses,
NEXT_TELEMETRY_DEBUG: '1',
},
})
})
afterAll(() => next.destroy())
it('should send @next/font/google and @next/font/local usage event', async () => {
const events = findAllTelemetryEvents(
next.cliOutput,
'NEXT_BUILD_FEATURE_USAGE'
)
expect(events).toContainEqual({
featureName: '@next/font/google',
invocationCount: 1,
})
expect(events).toContainEqual({
featureName: '@next/font/local',
invocationCount: 1,
})
})
})
describe('@next/font unused telemetry', () => {
let next: NextInstance
beforeAll(async () => {
next = await createNext({
files: {
pages: new FileRef(join(__dirname, 'telemetry/pages-unused')),
'next.config.js': new FileRef(
join(__dirname, 'telemetry/next.config.js')
),
},
dependencies: {
'@next/font': 'canary',
},
env: {
NEXT_FONT_GOOGLE_MOCKED_RESPONSES: mockedGoogleFontResponses,
NEXT_TELEMETRY_DEBUG: '1',
},
})
})
afterAll(() => next.destroy())
it('should not send @next/font/google and @next/font/local usage event', async () => {
const events = findAllTelemetryEvents(
next.cliOutput,
'NEXT_BUILD_FEATURE_USAGE'
)
expect(events).toContainEqual({
featureName: '@next/font/google',
invocationCount: 0,
})
expect(events).toContainEqual({
featureName: '@next/font/local',
invocationCount: 0,
})
})
})