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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package thrift
import (
"io"
"net"
"strings"
"testing"
"time"
)
type serverSocketConnCallback func(testing.TB, *socketConn)
func serverSocketConn(tb testing.TB, f serverSocketConnCallback) (net.Listener, error) {
tb.Helper()
ln, err := net.Listen("tcp", "localhost:0")
if err != nil {
return nil, err
}
go func() {
for {
sc, err := createSocketConnFromReturn(ln.Accept())
if err != nil {
// This is usually caused by Listener being
// closed, not really an error.
return
}
go f(tb, sc)
}
}()
return ln, nil
}
func writeFully(tb testing.TB, w io.Writer, s string) bool {
tb.Helper()
n, err := io.Copy(w, strings.NewReader(s))
if err != nil {
tb.Errorf("Failed to write %q: %v", s, err)
return false
}
if int(n) < len(s) {
tb.Errorf("Only wrote %d out of %q", n, s)
return false
}
return true
}
func TestSocketConn(t *testing.T) {
const (
interval = time.Millisecond * 10
first = "hello"
second = "world"
)
ln, err := serverSocketConn(
t,
func(tb testing.TB, sc *socketConn) {
defer sc.Close()
if !writeFully(tb, sc, first) {
return
}
time.Sleep(interval)
writeFully(tb, sc, second)
},
)
if err != nil {
t.Fatal(err)
}
defer ln.Close()
sc, err := createSocketConnFromReturn(net.Dial("tcp", ln.Addr().String()))
if err != nil {
t.Fatal(err)
}
buf := make([]byte, 1024)
n, err := sc.Read(buf)
if err != nil {
t.Fatal(err)
}
read := string(buf[:n])
if read != first {
t.Errorf("Expected read %q, got %q", first, read)
}
n, err = sc.Read(buf)
if err != nil {
t.Fatal(err)
}
read = string(buf[:n])
if read != second {
t.Errorf("Expected read %q, got %q", second, read)
}
}
func TestSocketConnNilSafe(t *testing.T) {
sc := (*socketConn)(nil)
if sc.isValid() {
t.Error("Expected false for nil.isValid(), got true")
}
if sc.IsOpen() {
t.Error("Expected false for nil.IsOpen(), got true")
}
}