func (c *testCodec) WriteMessage(hdr *rpc.Header, x interface{}) error {
if reflect.ValueOf(x).Kind() != reflect.Struct {
panic(fmt.Errorf("WriteRequest bad param; want struct got %T (%#v)", x, x))
}
if c.role != roleBoth && hdr.IsRequest() != (c.role == roleClient) {
panic(fmt.Errorf("codec role %v; header wrong type %#v", c.role, hdr))
}
logger.Infof("send header: %#v; body: %#v", hdr, x)
return c.Codec.WriteMessage(hdr, x)
}
func (c *testCodec) ReadHeader(hdr *rpc.Header) error {
err := c.Codec.ReadHeader(hdr)
if err != nil {
return err
}
logger.Infof("got header %#v", hdr)
if c.role != roleBoth && hdr.IsRequest() == (c.role == roleClient) {
panic(fmt.Errorf("codec role %v; read wrong type %#v", c.role, hdr))
}
return nil
}
// init fills out the receiving outMsg with information from the given
// header and body.
func (m *outMsg) init(hdr *rpc.Header, body interface{}) {
m.RequestId = hdr.RequestId
m.Type = hdr.Request.Type
m.Id = hdr.Request.Id
m.Request = hdr.Request.Action
m.Error = hdr.Error
m.ErrorCode = hdr.ErrorCode
if hdr.IsRequest() {
m.Params = body
} else {
m.Response = body
}
}
func (*suite) TestRead(c *gc.C) {
for i, test := range readTests {
c.Logf("test %d", i)
codec := jsoncodec.New(&testConn{
readMsgs: []string{test.msg},
})
var hdr rpc.Header
err := codec.ReadHeader(&hdr)
c.Assert(err, gc.IsNil)
c.Assert(hdr, gc.DeepEquals, test.expectHdr)
c.Assert(hdr.IsRequest(), gc.Equals, test.expectHdr.IsRequest())
body := reflect.New(reflect.ValueOf(test.expectBody).Type().Elem()).Interface()
err = codec.ReadBody(body, test.expectHdr.IsRequest())
c.Assert(err, gc.IsNil)
c.Assert(body, gc.DeepEquals, test.expectBody)
err = codec.ReadHeader(&hdr)
c.Assert(err, gc.Equals, io.EOF)
}
}