gitee.com/liuxuezhan/go-micro-v1.18.0@v1.0.0/client/grpc/grpc_test.go (about)

     1  package grpc
     2  
     3  import (
     4  	"context"
     5  	"net"
     6  	"testing"
     7  
     8  	"gitee.com/liuxuezhan/go-micro-v1.18.0/client"
     9  	"gitee.com/liuxuezhan/go-micro-v1.18.0/client/selector"
    10  	"gitee.com/liuxuezhan/go-micro-v1.18.0/registry"
    11  	"gitee.com/liuxuezhan/go-micro-v1.18.0/registry/memory"
    12  	pgrpc "google.golang.org/grpc"
    13  	pb "google.golang.org/grpc/examples/helloworld/helloworld"
    14  )
    15  
    16  // server is used to implement helloworld.GreeterServer.
    17  type greeterServer struct{}
    18  
    19  // SayHello implements helloworld.GreeterServer
    20  func (g *greeterServer) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {
    21  	return &pb.HelloReply{Message: "Hello " + in.Name}, nil
    22  }
    23  
    24  func TestGRPCClient(t *testing.T) {
    25  	l, err := net.Listen("tcp", ":0")
    26  	if err != nil {
    27  		t.Fatalf("failed to listen: %v", err)
    28  	}
    29  	defer l.Close()
    30  
    31  	s := pgrpc.NewServer()
    32  	pb.RegisterGreeterServer(s, &greeterServer{})
    33  
    34  	go s.Serve(l)
    35  	defer s.Stop()
    36  
    37  	// create mock registry
    38  	r := memory.NewRegistry()
    39  
    40  	// register service
    41  	r.Register(&registry.Service{
    42  		Name:    "helloworld",
    43  		Version: "test",
    44  		Nodes: []*registry.Node{
    45  			{
    46  				Id:      "test-1",
    47  				Address: l.Addr().String(),
    48  				Metadata: map[string]string{
    49  					"protocol": "grpc",
    50  				},
    51  			},
    52  		},
    53  	})
    54  
    55  	// create selector
    56  	se := selector.NewSelector(
    57  		selector.Registry(r),
    58  	)
    59  
    60  	// create client
    61  	c := NewClient(
    62  		client.Registry(r),
    63  		client.Selector(se),
    64  	)
    65  
    66  	testMethods := []string{
    67  		"/helloworld.Greeter/SayHello",
    68  		"Greeter.SayHello",
    69  	}
    70  
    71  	for _, method := range testMethods {
    72  		req := c.NewRequest("helloworld", method, &pb.HelloRequest{
    73  			Name: "John",
    74  		})
    75  
    76  		rsp := pb.HelloReply{}
    77  
    78  		err = c.Call(context.TODO(), req, &rsp)
    79  		if err != nil {
    80  			t.Fatal(err)
    81  		}
    82  
    83  		if rsp.Message != "Hello John" {
    84  			t.Fatalf("Got unexpected response %v", rsp.Message)
    85  		}
    86  	}
    87  }