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// Copyright 2018 The gVisor Authors.
//
// Licensed 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 p9
import (
"net"
"reflect"
"testing"
"github.com/u-root/uio/ulog/ulogtest"
)
const (
msgTypeBadEncode = iota + 252
msgTypeBadDecode
msgTypeUnregistered
)
// badDecode overruns on decode.
type badDecode struct{}
func (*badDecode) decode(b *buffer) { b.markOverrun() }
func (*badDecode) encode(b *buffer) {}
func (*badDecode) typ() msgType { return msgTypeBadDecode }
func (*badDecode) String() string { return "badDecode{}" }
// unregistered is not registered on decode.
type unregistered struct{}
func (*unregistered) decode(b *buffer) {}
func (*unregistered) encode(b *buffer) {}
func (*unregistered) typ() msgType { return msgTypeUnregistered }
func (*unregistered) String() string { return "unregistered{}" }
func DISABLEDTestRecvClosed(t *testing.T) {
server, client := net.Pipe()
defer server.Close()
client.Close()
l := ulogtest.Logger{TB: t}
_, _, err := recv(l, server, maximumLength, msgDotLRegistry.get)
if err == nil {
t.Fatalf("got err nil expected non-nil")
}
if _, ok := err.(ConnError); !ok {
t.Fatalf("got err %v expected ErrSocket", err)
}
}
func DISABLEDTestSendClosed(t *testing.T) {
server, client := net.Pipe()
server.Close()
defer client.Close()
l := ulogtest.Logger{TB: t}
err := send(l, client, tag(1), &tlopen{})
if err == nil {
t.Fatalf("send got err nil expected non-nil")
}
if _, ok := err.(ConnError); !ok {
t.Fatalf("got err %v expected ErrSocket", err)
}
}
func init() {
msgDotLRegistry.register(msgTypeBadDecode, func() message { return &badDecode{} })
}
func TestSendAndRecv(t *testing.T) {
type args struct {
tag tag
m message
}
tests := []struct {
name string
args args
wantErr bool
}{
{
name: "Valid",
args: args{
tag(1), &tlopen{},
},
wantErr: false,
},
{
name: "InvalidType",
args: args{
tag(1), &unregistered{},
},
wantErr: true,
},
{
name: "RecvOverrun",
args: args{
tag(1), &badDecode{},
},
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
server, client := net.Pipe()
defer server.Close()
defer client.Close()
l := ulogtest.Logger{TB: t}
fin := make(chan struct{})
go func() {
defer func() {
fin <- struct{}{}
}()
tagg, m, err := recv(l, server, maximumLength, msgDotLRegistry.get)
if (err != nil) != tt.wantErr {
t.Errorf("recv() error = %v, wantRecvErr %v", err, tt.wantErr)
return
}
if !tt.wantErr && tagg != tag(1) {
t.Errorf("got tag %v expected 1", tagg)
}
expectedType := reflect.TypeOf(tt.args.m)
recievedType := reflect.TypeOf(m)
if !tt.wantErr && expectedType != recievedType {
t.Errorf("got message %v expected %v", recievedType, expectedType)
}
}()
if err := send(l, client, tag(1), tt.args.m); err != nil {
t.Fatalf("got err nil expected non-nil")
}
<-fin
})
}
}
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