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package testing
import (
flatbuffers "github.com/google/flatbuffers/go"
"github.com/google/flatbuffers/tests/MyGame/Example"
"context"
"net"
"testing"
"google.golang.org/grpc"
"google.golang.org/grpc/encoding"
)
type server struct {
Example.UnimplementedMonsterStorageServer
}
// test used to send and receive in grpc methods
var test = "Flatbuffers"
var addr = "0.0.0.0:50051"
// gRPC server store method
func (s *server) Store(context context.Context, in *Example.Monster) (*flatbuffers.Builder, error) {
b := flatbuffers.NewBuilder(0)
i := b.CreateString(test)
Example.StatStart(b)
Example.StatAddId(b, i)
b.Finish(Example.StatEnd(b))
return b, nil
}
// gRPC server retrieve method
func (s *server) Retrieve(context context.Context, in *Example.Stat) (*flatbuffers.Builder, error) {
b := flatbuffers.NewBuilder(0)
i := b.CreateString(test)
Example.MonsterStart(b)
Example.MonsterAddName(b, i)
b.Finish(Example.MonsterEnd(b))
return b, nil
}
func StoreClient(c Example.MonsterStorageClient, t *testing.T) {
b := flatbuffers.NewBuilder(0)
i := b.CreateString(test)
Example.MonsterStart(b)
Example.MonsterAddName(b, i)
b.Finish(Example.MonsterEnd(b))
out, err := c.Store(context.Background(), b)
if err != nil {
t.Fatalf("Store client failed: %v", err)
}
if string(out.Id()) != test {
t.Errorf("StoreClient failed: expected=%s, got=%s\n", test, out.Id())
t.Fail()
}
}
func RetrieveClient(c Example.MonsterStorageClient, t *testing.T) {
b := flatbuffers.NewBuilder(0)
i := b.CreateString(test)
Example.StatStart(b)
Example.StatAddId(b, i)
b.Finish(Example.StatEnd(b))
out, err := c.Retrieve(context.Background(), b)
if err != nil {
t.Fatalf("Retrieve client failed: %v", err)
}
monster, err := out.Recv()
if err != nil {
t.Fatalf("Recv failed: %v", err)
}
if string(monster.Name()) != test {
t.Errorf("RetrieveClient failed: expected=%s, got=%s\n", test, monster.Name())
t.Fail()
}
}
func TestGRPC(t *testing.T) {
lis, err := net.Listen("tcp", addr)
if err != nil {
t.Fatalf("Failed to listen: %v", err)
}
ser := grpc.NewServer()
encoding.RegisterCodec(flatbuffers.FlatbuffersCodec{})
Example.RegisterMonsterStorageServer(ser, &server{})
go func() {
if err := ser.Serve(lis); err != nil {
t.Fatalf("Failed to serve: %v", err)
t.FailNow()
}
}()
conn, err := grpc.Dial(addr, grpc.WithInsecure(), grpc.WithCodec(flatbuffers.FlatbuffersCodec{}))
if err != nil {
t.Fatalf("Failed to connect: %v", err)
}
defer conn.Close()
client := Example.NewMonsterStorageClient(conn)
StoreClient(client, t)
RetrieveClient(client, t)
}
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