github.com/google/fleetspeak@v0.1.15-0.20240426164851-4f31f62c1aea/fleetspeak/src/server/grpcservice/service_test.go (about)

     1  // Copyright 2017 Google Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     https://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package grpcservice
    16  
    17  import (
    18  	"context"
    19  	"net"
    20  	"testing"
    21  
    22  	log "github.com/golang/glog"
    23  
    24  	"google.golang.org/grpc"
    25  	"google.golang.org/grpc/credentials/insecure"
    26  
    27  	"github.com/google/fleetspeak/fleetspeak/src/common/anypbtest"
    28  	"github.com/google/fleetspeak/fleetspeak/src/server/sertesting"
    29  	"github.com/google/fleetspeak/fleetspeak/src/server/service"
    30  
    31  	fspb "github.com/google/fleetspeak/fleetspeak/src/common/proto/fleetspeak"
    32  	ggrpc "github.com/google/fleetspeak/fleetspeak/src/server/grpcservice/proto/fleetspeak_grpcservice"
    33  	gpb "github.com/google/fleetspeak/fleetspeak/src/server/grpcservice/proto/fleetspeak_grpcservice"
    34  	spb "github.com/google/fleetspeak/fleetspeak/src/server/proto/fleetspeak_server"
    35  )
    36  
    37  type trivialProcessorServer struct {
    38  	ggrpc.UnimplementedProcessorServer
    39  
    40  	msgs chan *fspb.Message
    41  }
    42  
    43  func (s *trivialProcessorServer) Process(ctx context.Context, m *fspb.Message) (*fspb.EmptyMessage, error) {
    44  	s.msgs <- m
    45  	return &fspb.EmptyMessage{}, nil
    46  }
    47  
    48  func startServer() (msgs <-chan *fspb.Message, addr string, fin func()) {
    49  	s := trivialProcessorServer{
    50  		msgs: make(chan *fspb.Message, 1),
    51  	}
    52  	l, err := net.Listen("tcp", "localhost:")
    53  	if err != nil {
    54  		log.Fatal(err)
    55  	}
    56  
    57  	gs := grpc.NewServer()
    58  	ggrpc.RegisterProcessorServer(gs, &s)
    59  	go gs.Serve(l)
    60  
    61  	return s.msgs, l.Addr().String(), gs.Stop
    62  }
    63  
    64  func TestNewUpdate(t *testing.T) {
    65  	msgs1, addr1, fin1 := startServer()
    66  	defer fin1()
    67  
    68  	con1, err := grpc.DialContext(context.Background(), addr1, grpc.WithTransportCredentials(insecure.NewCredentials()))
    69  	if err != nil {
    70  		t.Fatal(err)
    71  	}
    72  	svc := NewGRPCService(con1)
    73  	sctx := sertesting.FakeContext{}
    74  	svc.Start(&sctx)
    75  	defer svc.Stop()
    76  
    77  	if err := svc.ProcessMessage(context.Background(), &fspb.Message{
    78  		MessageType: "Test Message 1",
    79  	}); err != nil {
    80  		t.Errorf("ProcessMessages returned error: %v", err)
    81  	}
    82  	m := <-msgs1
    83  	if m.MessageType != "Test Message 1" {
    84  		t.Errorf("Expected Test Message 1, got: %v", m)
    85  	}
    86  
    87  	// setting a nil should cause temp errors
    88  	svc.Update(nil)
    89  	if err := svc.ProcessMessage(context.Background(), &fspb.Message{
    90  		MessageType: "Test Message 2",
    91  	}); err == nil || !service.IsTemporary(err) {
    92  		t.Errorf("Expected TemporaryError from ProcessMessages, got: %v", err)
    93  	}
    94  
    95  	msgs2, addr2, fin2 := startServer()
    96  	defer fin2()
    97  	con2, err := grpc.DialContext(context.Background(), addr2, grpc.WithTransportCredentials(insecure.NewCredentials()))
    98  	if err != nil {
    99  		t.Fatal(err)
   100  	}
   101  	svc.Update(con2)
   102  
   103  	if err := svc.ProcessMessage(context.Background(), &fspb.Message{
   104  		MessageType: "Test Message 3",
   105  	}); err != nil {
   106  		t.Errorf("ProcessMessages returned error: %v", err)
   107  	}
   108  	m = <-msgs2
   109  	if m.MessageType != "Test Message 3" {
   110  		t.Errorf("Expected Test Message 3, got: %v", m)
   111  	}
   112  
   113  	// Should be fine to Stop when con is nil.
   114  	svc.Update(nil)
   115  }
   116  
   117  func TestFactory(t *testing.T) {
   118  	msgs, addr, fin := startServer()
   119  	defer fin()
   120  
   121  	svc, err := Factory(&spb.ServiceConfig{
   122  		Config: anypbtest.New(t, &gpb.Config{
   123  			Target:   addr,
   124  			Insecure: true,
   125  		}),
   126  	})
   127  	if err != nil {
   128  		t.Fatalf("Unable to create service: %v", err)
   129  	}
   130  
   131  	sctx := sertesting.FakeContext{}
   132  	svc.Start(&sctx)
   133  
   134  	if err := svc.ProcessMessage(context.Background(), &fspb.Message{
   135  		MessageType: "Test Message",
   136  	}); err != nil {
   137  		t.Errorf("ProcessMessages returned error: %v", err)
   138  	}
   139  	svc.Stop()
   140  
   141  	m := <-msgs
   142  	if m.MessageType != "Test Message" {
   143  		t.Errorf("Expected Test Message, got: %v", m)
   144  	}
   145  }