Add tcp dialer test (#1177)

pkg/backends/tcp_test.go

@@ -112,3 +112,57 @@ func TestTCPListenerStart(t *testing.T) {
 		})
 	}
 }
+
+func TestTCPDialerStart(t *testing.T) {
+	type fields struct {
+		address string
+		redial  bool
+		tls     *tls.Config
+		logger  *logger.ReceptorLogger
+	}
+	type args struct {
+		ctx context.Context
+		wg  *sync.WaitGroup
+	}
+	tests := []struct {
+		name    string
+		fields  fields
+		args    args
+		want    chan netceptor.BackendSession
+		wantErr bool
+	}{
+		{
+			name: "Positive",
+			fields: fields{
+				address: "127.0.0.1:9998",
+				redial:  true,
+				tls:     nil,
+				logger:  logger.NewReceptorLogger("TCPtest"),
+			},
+			args: args{
+				ctx: context.Background(),
+				wg:  &sync.WaitGroup{},
+			},
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			b := &TCPDialer{
+				address: tt.fields.address,
+				redial:  tt.fields.redial,
+				tls:     tt.fields.tls,
+				logger:  tt.fields.logger,
+			}
+			got, err := b.Start(tt.args.ctx, tt.args.wg)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("TCPDialer.Start() error = %+v, wantErr %+v", err, tt.wantErr)
+
+				return
+			}
+			if got == nil {
+				t.Errorf("TCPDialer.Start() got = nil")
+			}
+		})
+	}
+}