transfer.sh/vendor/go.opencensus.io/internal/testpb/impl.go
2019-03-17 20:19:56 +01:00

94 lines
2.2 KiB
Go

// Copyright 2018, OpenCensus Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package testpb
import (
"context"
"fmt"
"io"
"net"
"testing"
"time"
"go.opencensus.io/plugin/ocgrpc"
"go.opencensus.io/trace"
"google.golang.org/grpc"
)
type testServer struct{}
var _ FooServer = (*testServer)(nil)
func (s *testServer) Single(ctx context.Context, in *FooRequest) (*FooResponse, error) {
if in.SleepNanos > 0 {
_, span := trace.StartSpan(ctx, "testpb.Single.Sleep")
span.AddAttributes(trace.Int64Attribute("sleep_nanos", in.SleepNanos))
time.Sleep(time.Duration(in.SleepNanos))
span.End()
}
if in.Fail {
return nil, fmt.Errorf("request failed")
}
return &FooResponse{}, nil
}
func (s *testServer) Multiple(stream Foo_MultipleServer) error {
for {
in, err := stream.Recv()
if err == io.EOF {
return nil
}
if err != nil {
return err
}
if in.Fail {
return fmt.Errorf("request failed")
}
if err := stream.Send(&FooResponse{}); err != nil {
return err
}
}
}
// NewTestClient returns a new TestClient.
func NewTestClient(l *testing.T) (client FooClient, cleanup func()) {
// initialize server
listener, err := net.Listen("tcp", "localhost:0")
if err != nil {
l.Fatal(err)
}
server := grpc.NewServer(grpc.StatsHandler(&ocgrpc.ServerHandler{}))
RegisterFooServer(server, &testServer{})
go server.Serve(listener)
// Initialize client.
clientConn, err := grpc.Dial(
listener.Addr().String(),
grpc.WithInsecure(),
grpc.WithStatsHandler(&ocgrpc.ClientHandler{}),
grpc.WithBlock())
if err != nil {
l.Fatal(err)
}
client = NewFooClient(clientConn)
cleanup = func() {
server.GracefulStop()
clientConn.Close()
}
return client, cleanup
}