278 lines
7.2 KiB
Go
278 lines
7.2 KiB
Go
/*
|
|
*
|
|
* Copyright 2014, Google Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following disclaimer
|
|
* in the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* * Neither the name of Google Inc. nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
package grpc
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"math"
|
|
"net"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
|
|
"golang.org/x/net/context"
|
|
"google.golang.org/grpc/codes"
|
|
"google.golang.org/grpc/transport"
|
|
)
|
|
|
|
var (
|
|
expectedRequest = "ping"
|
|
expectedResponse = "pong"
|
|
weirdError = "format verbs: %v%s"
|
|
sizeLargeErr = 1024 * 1024
|
|
canceled = 0
|
|
)
|
|
|
|
type testCodec struct {
|
|
}
|
|
|
|
func (testCodec) Marshal(v interface{}) ([]byte, error) {
|
|
return []byte(*(v.(*string))), nil
|
|
}
|
|
|
|
func (testCodec) Unmarshal(data []byte, v interface{}) error {
|
|
*(v.(*string)) = string(data)
|
|
return nil
|
|
}
|
|
|
|
func (testCodec) String() string {
|
|
return "test"
|
|
}
|
|
|
|
type testStreamHandler struct {
|
|
port string
|
|
t transport.ServerTransport
|
|
}
|
|
|
|
func (h *testStreamHandler) handleStream(t *testing.T, s *transport.Stream) {
|
|
p := &parser{r: s}
|
|
for {
|
|
pf, req, err := p.recvMsg()
|
|
if err == io.EOF {
|
|
break
|
|
}
|
|
if err != nil {
|
|
return
|
|
}
|
|
if pf != compressionNone {
|
|
t.Errorf("Received the mistaken message format %d, want %d", pf, compressionNone)
|
|
return
|
|
}
|
|
var v string
|
|
codec := testCodec{}
|
|
if err := codec.Unmarshal(req, &v); err != nil {
|
|
t.Errorf("Failed to unmarshal the received message: %v", err)
|
|
return
|
|
}
|
|
if v == "weird error" {
|
|
h.t.WriteStatus(s, codes.Internal, weirdError)
|
|
return
|
|
}
|
|
if v == "canceled" {
|
|
canceled++
|
|
h.t.WriteStatus(s, codes.Internal, "")
|
|
return
|
|
}
|
|
if v == "port" {
|
|
h.t.WriteStatus(s, codes.Internal, h.port)
|
|
return
|
|
}
|
|
|
|
if v != expectedRequest {
|
|
h.t.WriteStatus(s, codes.Internal, strings.Repeat("A", sizeLargeErr))
|
|
return
|
|
}
|
|
}
|
|
// send a response back to end the stream.
|
|
reply, err := encode(testCodec{}, &expectedResponse, nil, nil)
|
|
if err != nil {
|
|
t.Errorf("Failed to encode the response: %v", err)
|
|
return
|
|
}
|
|
h.t.Write(s, reply, &transport.Options{})
|
|
h.t.WriteStatus(s, codes.OK, "")
|
|
}
|
|
|
|
type server struct {
|
|
lis net.Listener
|
|
port string
|
|
startedErr chan error // sent nil or an error after server starts
|
|
mu sync.Mutex
|
|
conns map[transport.ServerTransport]bool
|
|
}
|
|
|
|
func newTestServer() *server {
|
|
return &server{startedErr: make(chan error, 1)}
|
|
}
|
|
|
|
// start starts server. Other goroutines should block on s.startedErr for further operations.
|
|
func (s *server) start(t *testing.T, port int, maxStreams uint32) {
|
|
var err error
|
|
if port == 0 {
|
|
s.lis, err = net.Listen("tcp", "localhost:0")
|
|
} else {
|
|
s.lis, err = net.Listen("tcp", "localhost:"+strconv.Itoa(port))
|
|
}
|
|
if err != nil {
|
|
s.startedErr <- fmt.Errorf("failed to listen: %v", err)
|
|
return
|
|
}
|
|
_, p, err := net.SplitHostPort(s.lis.Addr().String())
|
|
if err != nil {
|
|
s.startedErr <- fmt.Errorf("failed to parse listener address: %v", err)
|
|
return
|
|
}
|
|
s.port = p
|
|
s.conns = make(map[transport.ServerTransport]bool)
|
|
s.startedErr <- nil
|
|
for {
|
|
conn, err := s.lis.Accept()
|
|
if err != nil {
|
|
return
|
|
}
|
|
st, err := transport.NewServerTransport("http2", conn, maxStreams, nil)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
s.mu.Lock()
|
|
if s.conns == nil {
|
|
s.mu.Unlock()
|
|
st.Close()
|
|
return
|
|
}
|
|
s.conns[st] = true
|
|
s.mu.Unlock()
|
|
h := &testStreamHandler{
|
|
port: s.port,
|
|
t: st,
|
|
}
|
|
go st.HandleStreams(func(s *transport.Stream) {
|
|
go h.handleStream(t, s)
|
|
})
|
|
}
|
|
}
|
|
|
|
func (s *server) wait(t *testing.T, timeout time.Duration) {
|
|
select {
|
|
case err := <-s.startedErr:
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
case <-time.After(timeout):
|
|
t.Fatalf("Timed out after %v waiting for server to be ready", timeout)
|
|
}
|
|
}
|
|
|
|
func (s *server) stop() {
|
|
s.lis.Close()
|
|
s.mu.Lock()
|
|
for c := range s.conns {
|
|
c.Close()
|
|
}
|
|
s.conns = nil
|
|
s.mu.Unlock()
|
|
}
|
|
|
|
func setUp(t *testing.T, port int, maxStreams uint32) (*server, *ClientConn) {
|
|
server := newTestServer()
|
|
go server.start(t, port, maxStreams)
|
|
server.wait(t, 2*time.Second)
|
|
addr := "localhost:" + server.port
|
|
cc, err := Dial(addr, WithBlock(), WithInsecure(), WithCodec(testCodec{}))
|
|
if err != nil {
|
|
t.Fatalf("Failed to create ClientConn: %v", err)
|
|
}
|
|
return server, cc
|
|
}
|
|
|
|
func TestInvoke(t *testing.T) {
|
|
server, cc := setUp(t, 0, math.MaxUint32)
|
|
var reply string
|
|
if err := Invoke(context.Background(), "/foo/bar", &expectedRequest, &reply, cc); err != nil || reply != expectedResponse {
|
|
t.Fatalf("grpc.Invoke(_, _, _, _, _) = %v, want <nil>", err)
|
|
}
|
|
cc.Close()
|
|
server.stop()
|
|
}
|
|
|
|
func TestInvokeLargeErr(t *testing.T) {
|
|
server, cc := setUp(t, 0, math.MaxUint32)
|
|
var reply string
|
|
req := "hello"
|
|
err := Invoke(context.Background(), "/foo/bar", &req, &reply, cc)
|
|
if _, ok := err.(*rpcError); !ok {
|
|
t.Fatalf("grpc.Invoke(_, _, _, _, _) receives non rpc error.")
|
|
}
|
|
if Code(err) != codes.Internal || len(ErrorDesc(err)) != sizeLargeErr {
|
|
t.Fatalf("grpc.Invoke(_, _, _, _, _) = %v, want an error of code %d and desc size %d", err, codes.Internal, sizeLargeErr)
|
|
}
|
|
cc.Close()
|
|
server.stop()
|
|
}
|
|
|
|
// TestInvokeErrorSpecialChars checks that error messages don't get mangled.
|
|
func TestInvokeErrorSpecialChars(t *testing.T) {
|
|
server, cc := setUp(t, 0, math.MaxUint32)
|
|
var reply string
|
|
req := "weird error"
|
|
err := Invoke(context.Background(), "/foo/bar", &req, &reply, cc)
|
|
if _, ok := err.(*rpcError); !ok {
|
|
t.Fatalf("grpc.Invoke(_, _, _, _, _) receives non rpc error.")
|
|
}
|
|
if got, want := ErrorDesc(err), weirdError; got != want {
|
|
t.Fatalf("grpc.Invoke(_, _, _, _, _) error = %q, want %q", got, want)
|
|
}
|
|
cc.Close()
|
|
server.stop()
|
|
}
|
|
|
|
// TestInvokeCancel checks that an Invoke with a canceled context is not sent.
|
|
func TestInvokeCancel(t *testing.T) {
|
|
server, cc := setUp(t, 0, math.MaxUint32)
|
|
var reply string
|
|
req := "canceled"
|
|
for i := 0; i < 100; i++ {
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
cancel()
|
|
Invoke(ctx, "/foo/bar", &req, &reply, cc)
|
|
}
|
|
if canceled != 0 {
|
|
t.Fatalf("received %d of 100 canceled requests", canceled)
|
|
}
|
|
cc.Close()
|
|
server.stop()
|
|
}
|