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Manish R Jain
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package conn
import (
"bytes"
"net/rpc"
"testing"
)
type buf struct {
data chan byte
}
func newBuf() *buf {
b := new(buf)
b.data = make(chan byte, 10000)
return b
}
func (b *buf) Read(p []byte) (n int, err error) {
for i := 0; i < len(p); i++ {
p[i] = <-b.data
}
return len(p), nil
}
func (b *buf) Write(p []byte) (n int, err error) {
for i := 0; i < len(p); i++ {
b.data <- p[i]
}
return len(p), nil
}
func (b *buf) Close() error {
close(b.data)
return nil
}
func TestWriteAndParseHeader(t *testing.T) {
b := newBuf()
data := []byte("oh hey")
if err := writeHeader(b, 11, "testing.T", data); err != nil {
t.Error(err)
t.Fail()
}
var seq uint64
var method string
var plen int32
if err := parseHeader(b, &seq, &method, &plen); err != nil {
t.Error(err)
t.Fail()
}
if seq != 11 {
t.Error("Sequence number. Expected 11. Got: %v", seq)
}
if method != "testing.T" {
t.Error("Method name. Expected: testing.T. Got: %v", method)
}
if plen != int32(len(data)) {
t.Error("Payload length. Expected: %v. Got: %v", len(data), plen)
}
}
func TestClientToServer(t *testing.T) {
b := newBuf()
cc := &ClientCodec{
Rwc: b,
}
sc := &ServerCodec{
Rwc: b,
}
r := &rpc.Request{
ServiceMethod: "Test.ClientServer",
Seq: 11,
}
query := new(Query)
query.Data = []byte("iamaquery")
if err := cc.WriteRequest(r, query); err != nil {
t.Error(err)
}
sr := new(rpc.Request)
if err := sc.ReadRequestHeader(sr); err != nil {
t.Error(err)
}
if sr.Seq != r.Seq {
t.Error("RPC Seq. Expected: %v. Got: %v", r.Seq, sr.Seq)
}
if sr.ServiceMethod != r.ServiceMethod {
t.Error("ServiceMethod. Expected: %v. Got: %v",
r.ServiceMethod, sr.ServiceMethod)
}
squery := new(Query)
if err := sc.ReadRequestBody(squery); err != nil {
t.Error(err)
}
if !bytes.Equal(squery.Data, query.Data) {
t.Error("Queries don't match. Expected: %v Got: %v",
string(query.Data), string(squery.Data))
}
}
func TestServerToClient(t *testing.T) {
b := newBuf()
cc := &ClientCodec{
Rwc: b,
}
sc := &ServerCodec{
Rwc: b,
}
r := &rpc.Response{
ServiceMethod: "Test.ClientServer",
Seq: 11,
}
reply := new(Reply)
reply.Data = []byte("iamareply")
if err := sc.WriteResponse(r, reply); err != nil {
t.Error(err)
}
cr := new(rpc.Response)
if err := cc.ReadResponseHeader(cr); err != nil {
t.Error(err)
}
if cr.Seq != r.Seq {
t.Error("RPC Seq. Expected: %v. Got: %v", r.Seq, cr.Seq)
}
if cr.ServiceMethod != r.ServiceMethod {
t.Error("ServiceMethod. Expected: %v. Got: %v",
r.ServiceMethod, cr.ServiceMethod)
}
creply := new(Reply)
if err := cc.ReadResponseBody(creply); err != nil {
t.Error(err)
}
if !bytes.Equal(creply.Data, reply.Data) {
t.Error("Replies don't match. Expected: %v Got: %v",
string(reply.Data), string(creply.Data))
}
}