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cli.test.js
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'use strict' process.env.TZ = 'UTC' const path = require('node:path') const { spawn } = require('node:child_process') const { describe, test } = require('node:test') const { once } = require('./helper') const bin = require.resolve(path.join(__dirname, '..', 'bin.js')) const epoch = 1522431328992 const logLine = '{"level":30,"time":1522431328992,"msg":"hello world","pid":42,"hostname":"foo"}\n' const env = { TERM: 'dumb', TZ: 'UTC' } const formattedEpoch = '17:35:28.992' describe('cli', () => { test('does basic reformatting', async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) for (const optionName of ['--levelFirst', '-l']) { test(`flips epoch and level via ${optionName}`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, optionName], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `INFO [${formattedEpoch}] (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) } for (const optionName of ['--translateTime', '-t']) { test(`translates time to default format via ${optionName}`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, optionName], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) } for (const optionName of ['--ignore', '-i']) { test('does ignore multiple keys', async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, optionName, 'pid,hostname'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO: hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) } for (const optionName of ['--customLevels', '-x']) { test(`customize levels via ${optionName}`, async (t) => { t.plan(1) const logLine = '{"level":1,"time":1522431328992,"msg":"hello world","pid":42,"hostname":"foo"}\n' const child = spawn(process.argv[0], [bin, optionName, 'err:99,info:1'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) test(`customize levels via ${optionName} without index`, async (t) => { t.plan(1) const logLine = '{"level":1,"time":1522431328992,"msg":"hello world","pid":42,"hostname":"foo"}\n' const child = spawn(process.argv[0], [bin, optionName, 'err:99,info'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) test(`customize levels via ${optionName} with minimumLevel`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, '--minimumLevel', 'err', optionName, 'err:99,info:1'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] ERR (42): hello world\n`) }) child.stdin.write('{"level":1,"time":1522431328992,"msg":"hello world","pid":42,"hostname":"foo"}\n') child.stdin.write('{"level":99,"time":1522431328992,"msg":"hello world","pid":42,"hostname":"foo"}\n') await endPromise t.after(() => child.kill()) }) test(`customize levels via ${optionName} with minimumLevel, customLevels and useOnlyCustomProps false`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, '--minimumLevel', 'custom', '--useOnlyCustomProps', 'false', optionName, 'custom:99,info:1'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] CUSTOM (42): hello world\n`) }) child.stdin.write('{"level":1,"time":1522431328992,"msg":"hello world","pid":42,"hostname":"foo"}\n') child.stdin.write('{"level":99,"time":1522431328992,"msg":"hello world","pid":42,"hostname":"foo"}\n') await endPromise t.after(() => child.kill()) }) test(`customize levels via ${optionName} with minimumLevel, customLevels and useOnlyCustomProps true`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, '--minimumLevel', 'custom', '--useOnlyCustomProps', 'true', optionName, 'custom:99,info:1'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] CUSTOM (42): hello world\n`) }) child.stdin.write('{"level":1,"time":1522431328992,"msg":"hello world","pid":42,"hostname":"foo"}\n') child.stdin.write('{"level":99,"time":1522431328992,"msg":"hello world","pid":42,"hostname":"foo"}\n') await endPromise t.after(() => child.kill()) }) } for (const optionName of ['--customColors', '-X']) { test(`customize levels via ${optionName}`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, optionName, 'info:blue,message:red'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) test(`customize levels via ${optionName} with customLevels`, async (t) => { t.plan(1) const logLine = '{"level":1,"time":1522431328992,"msg":"hello world","pid":42,"hostname":"foo"}\n' const child = spawn(process.argv[0], [bin, '--customLevels', 'err:99,info', optionName, 'info:blue,message:red'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) } for (const optionName of ['--useOnlyCustomProps', '-U']) { test(`customize levels via ${optionName} false and customColors`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, '--customColors', 'err:blue,info:red', optionName, 'false'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) test(`customize levels via ${optionName} true and customColors`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, '--customColors', 'err:blue,info:red', optionName, 'true'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) test(`customize levels via ${optionName} true and customLevels`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, '--customLevels', 'err:99,custom:30', optionName, 'true'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] CUSTOM (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) test(`customize levels via ${optionName} true and no customLevels`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, optionName, 'true'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) test(`customize levels via ${optionName} false and customLevels`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, '--customLevels', 'err:99,custom:25', optionName, 'false'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) test(`customize levels via ${optionName} false and no customLevels`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, optionName, 'false'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world\n`) }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) } test('does ignore escaped keys', async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, '-i', 'log\\.domain\\.corp/foo'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO: hello world\n`) }) const logLine = '{"level":30,"time":1522431328992,"msg":"hello world","log.domain.corp/foo":"bar"}\n' child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) test('passes through stringified date as string', async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin], { env }) child.on('error', t.assert.fail) const date = JSON.stringify(new Date(epoch)) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), date + '\n') }) child.stdin.write(date) child.stdin.write('\n') await endPromise t.after(() => child.kill()) }) test('end stdin does not end the destination', async (t) => { t.plan(2) const child = spawn(process.argv[0], [bin], { env }) child.on('error', t.assert.fail) const endPromise1 = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), 'aaa\n') }) child.stdin.end('aaa\n') const endPromise2 = once(child, 'exit', (code) => { t.assert.strictEqual(code, 0) }) await Promise.all([endPromise1, endPromise2]) t.after(() => child.kill()) }) for (const optionName of ['--timestampKey', '-a']) { test(`uses specified timestamp key via ${optionName}`, async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin, optionName, '@timestamp'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO: hello world\n`) }) const logLine = '{"level":30,"@timestamp":1522431328992,"msg":"hello world"}\n' child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) } for (const optionName of ['--singleLine', '-S']) { test(`singleLine=true via ${optionName}`, async (t) => { t.plan(1) const logLineWithExtra = JSON.stringify(Object.assign(JSON.parse(logLine), { extra: { foo: 'bar', number: 42 } })) + '\n' const child = spawn(process.argv[0], [bin, optionName], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42): hello world {"extra":{"foo":"bar","number":42}}\n`) }) child.stdin.write(logLineWithExtra) await endPromise t.after(() => child.kill()) }) } test('does ignore nested keys', async (t) => { t.plan(1) const logLineNested = JSON.stringify(Object.assign(JSON.parse(logLine), { extra: { foo: 'bar', number: 42, nested: { foo2: 'bar2' } } })) + '\n' const child = spawn(process.argv[0], [bin, '-S', '-i', 'extra.foo,extra.nested,extra.nested.miss'], { env }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), `[${formattedEpoch}] INFO (42 on foo): hello world {"extra":{"number":42}}\n`) }) child.stdin.write(logLineNested) await endPromise t.after(() => child.kill()) }) test('change TZ', async (t) => { t.plan(1) const child = spawn(process.argv[0], [bin], { env: { ...env, TZ: 'Europe/Amsterdam' } }) child.on('error', t.assert.fail) const endPromise = once(child.stdout, 'data', (data) => { t.assert.strictEqual(data.toString(), '[19:35:28.992] INFO (42): hello world\n') }) child.stdin.write(logLine) await endPromise t.after(() => child.kill()) }) })