v/vlib/veb/tests/persistent_connection_test.v

127 lines
3.0 KiB
V

import net
import net.http
import io
import os
import time
import veb
const exit_after = time.second * 10
const port = 13009
const localserver = 'localhost:${port}'
const tcp_r_timeout = 2 * time.second
const tcp_w_timeout = 2 * time.second
const max_retries = 4
const default_request = 'GET / HTTP/1.1
User-Agent: VTESTS
Accept: */*
\r\n'
const response_body = 'intact!'
pub struct Context {
veb.Context
}
pub struct App {
mut:
started chan bool
counter int
}
pub fn (mut app App) before_accept_loop() {
app.started <- true
}
pub fn (mut app App) index(mut ctx Context) veb.Result {
app.counter++
return ctx.text('${response_body}:${app.counter}')
}
pub fn (mut app App) reset(mut ctx Context) veb.Result {
app.counter = 0
return ctx.ok('')
}
fn testsuite_begin() {
os.chdir(os.dir(@FILE))!
mut app := &App{}
spawn veb.run_at[App, Context](mut app, port: port, timeout_in_seconds: 5)
_ := <-app.started
spawn fn () {
time.sleep(exit_after)
assert true == false, 'timeout reached!'
exit(1)
}()
}
fn test_conn_remains_intact() {
http.get('http://${localserver}/reset')!
mut conn := simple_tcp_client()!
conn.write_string(default_request)!
mut read := io.read_all(reader: conn)!
mut response := read.bytestr()
assert response.contains('Connection: close') == false, '`Connection` header should NOT be present!'
assert response.ends_with('${response_body}:1') == true, 'read response: ${response}'
// send request again over the same connection
conn.write_string(default_request)!
read = io.read_all(reader: conn)!
response = read.bytestr()
assert response.contains('Connection: close') == false, '`Connection` header should NOT be present!'
assert response.ends_with('${response_body}:2') == true, 'read response: ${response}'
conn.close() or {}
}
fn test_support_http_1() {
http.get('http://${localserver}/reset')!
// HTTP 1.0 always closes the connection after each request, so the client must
// send the Connection: close header. If that header is present the connection
// needs to be closed and a `Connection: close` header needs to be send back
mut x := http.fetch(http.FetchConfig{
url: 'http://${localserver}/'
header: http.new_header_from_map({
.connection: 'close'
})
})!
assert x.status() == .ok
if conn_header := x.header.get(.connection) {
assert conn_header == 'close'
} else {
assert false, '`Connection: close` header should be present!'
}
}
// utility code:
fn simple_tcp_client() !&net.TcpConn {
mut client := &net.TcpConn(unsafe { nil })
mut tries := 0
for tries < max_retries {
tries++
eprintln('> client retries: ${tries}')
client = net.dial_tcp(localserver) or {
eprintln('dial error: ${err.msg()}')
if tries > max_retries {
return err
}
time.sleep(100 * time.millisecond)
continue
}
break
}
if client == unsafe { nil } {
eprintln('could not create a tcp client connection to http://${localserver} after ${max_retries} retries')
exit(1)
}
client.set_read_timeout(tcp_r_timeout)
client.set_write_timeout(tcp_w_timeout)
return client
}