blob: 6326ceee73af5b03a6cecba03cd0df9076b53c8f [file] [log] [blame]
// Copyright 2020 Google LLC.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package grpc
import (
"context"
"net"
"testing"
"google.golang.org/api/option"
"google.golang.org/grpc"
)
func TestPool(t *testing.T) {
conn1 := &grpc.ClientConn{}
conn2 := &grpc.ClientConn{}
pool := &roundRobinConnPool{
conns: []*grpc.ClientConn{
conn1, conn2,
},
}
if got := pool.Conn(); got != conn2 {
t.Errorf("pool.Conn() #1 got %v; want conn2 (%v)", got, conn1)
}
if got := pool.Conn(); got != conn1 {
t.Errorf("pool.Conn() #2 got %v; want conn1 (%v)", got, conn1)
}
if got := pool.Conn(); got != conn2 {
t.Errorf("pool.Conn() #3 got %v; want conn2 (%v)", got, conn1)
}
}
func TestClose(t *testing.T) {
_, l := mockServer(t)
pool := &roundRobinConnPool{}
for i := 0; i < 4; i++ {
conn, err := grpc.Dial(l.Addr().String(), grpc.WithInsecure())
if err != nil {
t.Fatal(err)
}
pool.conns = append(pool.conns, conn)
}
if err := pool.Close(); err != nil {
t.Fatalf("pool.Close: %v", err)
}
}
// Regression test for https://github.com/googleapis/google-cloud-go/issues/1780
func TestWithGRPCConnAndPoolSize(t *testing.T) {
_, l := mockServer(t)
conn, err := grpc.Dial(l.Addr().String(), grpc.WithInsecure())
if err != nil {
t.Fatal(err)
}
ctx := context.Background()
connPool, err := DialPool(ctx,
option.WithGRPCConn(conn),
option.WithGRPCConnectionPool(4),
)
if err != nil {
t.Fatal(err)
}
if err := connPool.Close(); err != nil {
t.Fatalf("pool.Close: %v", err)
}
}
func mockServer(t *testing.T) (*grpc.Server, net.Listener) {
t.Helper()
l, err := net.Listen("tcp", "localhost:0")
if err != nil {
t.Fatal(err)
}
s := grpc.NewServer()
go s.Serve(l)
return s, l
}