open-nomad/helper/pool/pool_test.go
2023-04-10 15:36:59 +00:00

67 lines
1.3 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package pool
import (
"fmt"
"net"
"testing"
"time"
"github.com/hashicorp/nomad/ci"
"github.com/hashicorp/nomad/helper/testlog"
"github.com/shoenig/test/must"
)
func newTestPool(t *testing.T) *ConnPool {
l := testlog.HCLogger(t)
p := NewPool(l, 1*time.Minute, 10, nil)
return p
}
func TestConnPool_ConnListener(t *testing.T) {
ports := ci.PortAllocator.Grab(1)
addrStr := fmt.Sprintf("127.0.0.1:%d", ports[0])
addr, err := net.ResolveTCPAddr("tcp", addrStr)
must.NoError(t, err)
exitCh := make(chan struct{})
defer close(exitCh)
go func() {
ln, listenErr := net.Listen("tcp", addrStr)
must.NoError(t, listenErr)
defer func() { _ = ln.Close() }()
conn, _ := ln.Accept()
defer func() { _ = conn.Close() }()
<-exitCh
}()
time.Sleep(100 * time.Millisecond)
// Create a test pool
pool := newTestPool(t)
// Setup a listener
c := make(chan *Conn, 1)
pool.SetConnListener(c)
// Make an RPC
_, err = pool.acquire("test", addr)
must.NoError(t, err)
// Assert we get a connection.
select {
case <-c:
case <-time.After(100 * time.Millisecond):
t.Fatalf("timeout")
}
// Test that the channel is closed when the pool shuts down.
err = pool.Shutdown()
must.NoError(t, err)
_, ok := <-c
must.False(t, ok)
}