mirror of
https://github.com/go-gitea/gitea.git
synced 2024-08-20 19:43:27 +02:00
111 lines
2.0 KiB
Go
Executable File
111 lines
2.0 KiB
Go
Executable File
// Copyright 2013 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package ssh
|
|
|
|
import (
|
|
"io"
|
|
"sync"
|
|
"testing"
|
|
)
|
|
|
|
// An in-memory packetConn. It is safe to call Close and writePacket
|
|
// from different goroutines.
|
|
type memTransport struct {
|
|
eof bool
|
|
pending [][]byte
|
|
write *memTransport
|
|
sync.Mutex
|
|
*sync.Cond
|
|
}
|
|
|
|
func (t *memTransport) readPacket() ([]byte, error) {
|
|
t.Lock()
|
|
defer t.Unlock()
|
|
for {
|
|
if len(t.pending) > 0 {
|
|
r := t.pending[0]
|
|
t.pending = t.pending[1:]
|
|
return r, nil
|
|
}
|
|
if t.eof {
|
|
return nil, io.EOF
|
|
}
|
|
t.Cond.Wait()
|
|
}
|
|
}
|
|
|
|
func (t *memTransport) closeSelf() error {
|
|
t.Lock()
|
|
defer t.Unlock()
|
|
if t.eof {
|
|
return io.EOF
|
|
}
|
|
t.eof = true
|
|
t.Cond.Broadcast()
|
|
return nil
|
|
}
|
|
|
|
func (t *memTransport) Close() error {
|
|
err := t.write.closeSelf()
|
|
t.closeSelf()
|
|
return err
|
|
}
|
|
|
|
func (t *memTransport) writePacket(p []byte) error {
|
|
t.write.Lock()
|
|
defer t.write.Unlock()
|
|
if t.write.eof {
|
|
return io.EOF
|
|
}
|
|
c := make([]byte, len(p))
|
|
copy(c, p)
|
|
t.write.pending = append(t.write.pending, c)
|
|
t.write.Cond.Signal()
|
|
return nil
|
|
}
|
|
|
|
func memPipe() (a, b packetConn) {
|
|
t1 := memTransport{}
|
|
t2 := memTransport{}
|
|
t1.write = &t2
|
|
t2.write = &t1
|
|
t1.Cond = sync.NewCond(&t1.Mutex)
|
|
t2.Cond = sync.NewCond(&t2.Mutex)
|
|
return &t1, &t2
|
|
}
|
|
|
|
func TestMemPipe(t *testing.T) {
|
|
a, b := memPipe()
|
|
if err := a.writePacket([]byte{42}); err != nil {
|
|
t.Fatalf("writePacket: %v", err)
|
|
}
|
|
if err := a.Close(); err != nil {
|
|
t.Fatal("Close: ", err)
|
|
}
|
|
p, err := b.readPacket()
|
|
if err != nil {
|
|
t.Fatal("readPacket: ", err)
|
|
}
|
|
if len(p) != 1 || p[0] != 42 {
|
|
t.Fatalf("got %v, want {42}", p)
|
|
}
|
|
p, err = b.readPacket()
|
|
if err != io.EOF {
|
|
t.Fatalf("got %v, %v, want EOF", p, err)
|
|
}
|
|
}
|
|
|
|
func TestDoubleClose(t *testing.T) {
|
|
a, _ := memPipe()
|
|
err := a.Close()
|
|
if err != nil {
|
|
t.Errorf("Close: %v", err)
|
|
}
|
|
err = a.Close()
|
|
if err != io.EOF {
|
|
t.Errorf("expect EOF on double close.")
|
|
}
|
|
}
|