| /* |
| * |
| * 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 ( |
| "io" |
| "math" |
| "net" |
| "strconv" |
| "sync" |
| "testing" |
| "time" |
| |
| "golang.org/x/net/context" |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/transport" |
| ) |
| |
| var ( |
| expectedRequest = "ping" |
| expectedResponse = "pong" |
| sizeLargeErr = 1024 * 1024 |
| ) |
| |
| 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 { |
| t transport.ServerTransport |
| } |
| |
| func (h *testStreamHandler) handleStream(t *testing.T, s *transport.Stream) { |
| p := &parser{s: 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.Fatalf("Failed to unmarshal the received message %v", err) |
| } |
| if v != expectedRequest { |
| h.t.WriteStatus(s, codes.Internal, string(make([]byte, sizeLargeErr))) |
| return |
| } |
| } |
| // send a response back to end the stream. |
| reply, err := encode(testCodec{}, &expectedResponse, compressionNone) |
| if err != nil { |
| t.Fatalf("Failed to encode the response: %v", err) |
| } |
| h.t.Write(s, reply, &transport.Options{}) |
| h.t.WriteStatus(s, codes.OK, "") |
| } |
| |
| type server struct { |
| lis net.Listener |
| port string |
| // channel to signal server is ready to serve. |
| readyChan chan bool |
| mu sync.Mutex |
| conns map[transport.ServerTransport]bool |
| } |
| |
| // start starts server. Other goroutines should block on s.readyChan for futher operations. |
| func (s *server) start(t *testing.T, port int, maxStreams uint32) { |
| var err error |
| if port == 0 { |
| s.lis, err = net.Listen("tcp", ":0") |
| } else { |
| s.lis, err = net.Listen("tcp", ":"+strconv.Itoa(port)) |
| } |
| if err != nil { |
| t.Fatalf("failed to listen: %v", err) |
| } |
| _, p, err := net.SplitHostPort(s.lis.Addr().String()) |
| if err != nil { |
| t.Fatalf("failed to parse listener address: %v", err) |
| } |
| s.port = p |
| s.conns = make(map[transport.ServerTransport]bool) |
| if s.readyChan != nil { |
| close(s.readyChan) |
| } |
| for { |
| conn, err := s.lis.Accept() |
| if err != nil { |
| return |
| } |
| st, err := transport.NewServerTransport("http2", conn, maxStreams, nil) |
| if err != nil { |
| return |
| } |
| s.mu.Lock() |
| if s.conns == nil { |
| s.mu.Unlock() |
| st.Close() |
| return |
| } |
| s.conns[st] = true |
| s.mu.Unlock() |
| h := &testStreamHandler{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 <-s.readyChan: |
| 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 := &server{readyChan: make(chan bool)} |
| 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() |
| } |