package clientinterceptors import ( "context" "sync" "sync/atomic" "testing" "github.com/stretchr/testify/assert" "github.com/tal-tech/go-zero/core/trace" "google.golang.org/grpc" "google.golang.org/grpc/metadata" ) func TestTracingInterceptor(t *testing.T) { var run int32 var wg sync.WaitGroup wg.Add(1) cc := new(grpc.ClientConn) err := TracingInterceptor(context.Background(), "/foo", nil, nil, cc, func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, opts ...grpc.CallOption) error { defer wg.Done() atomic.AddInt32(&run, 1) return nil }) wg.Wait() assert.Nil(t, err) assert.Equal(t, int32(1), atomic.LoadInt32(&run)) } func TestTracingInterceptor_GrpcFormat(t *testing.T) { var run int32 var wg sync.WaitGroup wg.Add(1) md := metadata.New(map[string]string{ "foo": "bar", }) carrier, err := trace.Inject(trace.GrpcFormat, md) assert.Nil(t, err) ctx, _ := trace.StartServerSpan(context.Background(), carrier, "user", "/foo") cc := new(grpc.ClientConn) err = TracingInterceptor(ctx, "/foo", nil, nil, cc, func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, opts ...grpc.CallOption) error { defer wg.Done() atomic.AddInt32(&run, 1) return nil }) wg.Wait() assert.Nil(t, err) assert.Equal(t, int32(1), atomic.LoadInt32(&run)) }