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'use strict'
const t = require('tap')
let diagnosticsChannel
try {
diagnosticsChannel = require('diagnostics_channel')
} catch {
t.skip('missing diagnostics_channel')
process.exit(0)
}
const { Client } = require('../..')
const { createServer } = require('http')
t.plan(33)
const server = createServer((req, res) => {
req.resume()
res.setHeader('Content-Type', 'text/plain')
res.setHeader('trailer', 'foo')
res.write('hello')
res.addTrailers({
foo: 'oof'
})
res.end()
})
t.teardown(server.close.bind(server))
const reqHeaders = {
foo: undefined,
bar: 'bar'
}
let _req
diagnosticsChannel.channel('undici:request:create').subscribe(({ request }) => {
_req = request
t.equal(request.completed, false)
t.equal(request.method, 'POST')
t.equal(request.path, '/')
t.equal(request.headers, 'bar: bar\r\n')
request.addHeader('hello', 'world')
t.equal(request.headers, 'bar: bar\r\nhello: world\r\n')
t.same(request.body, Buffer.from('hello world'))
})
let _connector
diagnosticsChannel.channel('undici:client:beforeConnect').subscribe(({ connectParams, connector }) => {
_connector = connector
t.equal(typeof _connector, 'function')
t.equal(Object.keys(connectParams).length, 6)
const { host, hostname, protocol, port, servername } = connectParams
t.equal(host, `localhost:${server.address().port}`)
t.equal(hostname, 'localhost')
t.equal(port, String(server.address().port))
t.equal(protocol, 'http:')
t.equal(servername, null)
})
let _socket
diagnosticsChannel.channel('undici:client:connected').subscribe(({ connectParams, socket, connector }) => {
_socket = socket
t.equal(Object.keys(connectParams).length, 6)
t.equal(_connector, connector)
const { host, hostname, protocol, port, servername } = connectParams
t.equal(host, `localhost:${server.address().port}`)
t.equal(hostname, 'localhost')
t.equal(port, String(server.address().port))
t.equal(protocol, 'http:')
t.equal(servername, null)
})
diagnosticsChannel.channel('undici:client:sendHeaders').subscribe(({ request, headers, socket }) => {
t.equal(_req, request)
t.equal(_socket, socket)
const expectedHeaders = [
'POST / HTTP/1.1',
`host: localhost:${server.address().port}`,
'connection: keep-alive',
'bar: bar',
'hello: world'
]
t.equal(headers, expectedHeaders.join('\r\n') + '\r\n')
})
diagnosticsChannel.channel('undici:request:headers').subscribe(({ request, response }) => {
t.equal(_req, request)
t.equal(response.statusCode, 200)
const expectedHeaders = [
Buffer.from('Content-Type'),
Buffer.from('text/plain'),
Buffer.from('trailer'),
Buffer.from('foo'),
Buffer.from('Date'),
response.headers[5], // This is a date
Buffer.from('Connection'),
Buffer.from('keep-alive'),
Buffer.from('Keep-Alive'),
Buffer.from('timeout=5'),
Buffer.from('Transfer-Encoding'),
Buffer.from('chunked')
]
t.same(response.headers, expectedHeaders)
t.equal(response.statusText, 'OK')
})
diagnosticsChannel.channel('undici:request:bodySent').subscribe(({ request }) => {
t.equal(_req, request)
})
let endEmitted = false
diagnosticsChannel.channel('undici:request:trailers').subscribe(({ request, trailers }) => {
t.equal(request.completed, true)
t.equal(_req, request)
// This event is emitted after the last chunk has been added to the body stream,
// not when it was consumed by the application
t.equal(endEmitted, false)
t.same(trailers, [Buffer.from('foo'), Buffer.from('oof')])
})
server.listen(0, () => {
const client = new Client(`http://localhost:${server.address().port}`, {
keepAliveTimeout: 300e3
})
t.teardown(client.close.bind(client))
client.request({
path: '/',
method: 'POST',
headers: reqHeaders,
body: 'hello world'
}, (err, data) => {
t.error(err)
data.body.on('end', function () {
endEmitted = true
})
})
})
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