mirror of
https://github.com/go-micro/go-micro.git
synced 2024-12-06 08:16:03 +02:00
110 lines
2.2 KiB
Go
110 lines
2.2 KiB
Go
package server
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
"testing"
|
|
|
|
"github.com/micro/go-micro/codec"
|
|
"github.com/micro/go-micro/transport"
|
|
)
|
|
|
|
// testCodec is a dummy codec that only knows how to encode nil bodies
|
|
type testCodec struct {
|
|
buf *bytes.Buffer
|
|
}
|
|
|
|
type testSocket struct {
|
|
local string
|
|
remote string
|
|
}
|
|
|
|
// TestCodecWriteError simulates what happens when a codec is unable
|
|
// to encode a message (e.g. a missing branch of an "oneof" message in
|
|
// protobufs)
|
|
//
|
|
// We expect an error to be sent to the socket. Previously the socket
|
|
// would remain open with no bytes sent, leading to client-side
|
|
// timeouts.
|
|
func TestCodecWriteError(t *testing.T) {
|
|
socket := testSocket{}
|
|
message := transport.Message{
|
|
Header: map[string]string{},
|
|
Body: []byte{},
|
|
}
|
|
|
|
rwc := readWriteCloser{
|
|
rbuf: new(bytes.Buffer),
|
|
wbuf: new(bytes.Buffer),
|
|
}
|
|
|
|
c := rpcCodec{
|
|
buf: &rwc,
|
|
codec: &testCodec{
|
|
buf: rwc.wbuf,
|
|
},
|
|
req: &message,
|
|
socket: socket,
|
|
}
|
|
|
|
err := c.Write(&codec.Message{
|
|
Endpoint: "Service.Endpoint",
|
|
Id: "0",
|
|
Error: "",
|
|
}, "body")
|
|
|
|
if err != nil {
|
|
t.Fatalf(`Expected Write to fail; got "%+v" instead`, err)
|
|
}
|
|
|
|
const expectedError = "Unable to encode body: simulating a codec write failure"
|
|
actualError := rwc.wbuf.String()
|
|
if actualError != expectedError {
|
|
t.Fatalf(`Expected error "%+v" in the write buffer, got "%+v" instead`, expectedError, actualError)
|
|
}
|
|
}
|
|
|
|
func (c *testCodec) ReadHeader(message *codec.Message, typ codec.MessageType) error {
|
|
return nil
|
|
}
|
|
|
|
func (c *testCodec) ReadBody(dest interface{}) error {
|
|
return nil
|
|
}
|
|
|
|
func (c *testCodec) Write(message *codec.Message, dest interface{}) error {
|
|
if dest != nil {
|
|
return errors.New("simulating a codec write failure")
|
|
}
|
|
c.buf.Write([]byte(message.Error))
|
|
return nil
|
|
}
|
|
|
|
func (c *testCodec) Close() error {
|
|
return nil
|
|
}
|
|
|
|
func (c *testCodec) String() string {
|
|
return "string"
|
|
}
|
|
|
|
func (s testSocket) Local() string {
|
|
return s.local
|
|
}
|
|
|
|
func (s testSocket) Remote() string {
|
|
return s.remote
|
|
}
|
|
|
|
func (s testSocket) Recv(message *transport.Message) error {
|
|
return nil
|
|
}
|
|
|
|
func (s testSocket) Send(message *transport.Message) error {
|
|
return nil
|
|
}
|
|
|
|
func (s testSocket) Close() error {
|
|
return nil
|
|
}
|