Run race detection for tests

.travis.yml

@@ -1,3 +1,3 @@
 language: go 
 go: 1.3.3
-script: sudo -E bash -c "source /etc/profile && gvm use go1.3.3 && export GOPATH=$HOME/gopath:$GOPATH && go get && go test -v"
+script: sudo -E bash -c "source /etc/profile && gvm use go1.3.3 && export GOPATH=$HOME/gopath:$GOPATH && go get && GORACE='halt_on_error=1' go test -race -v"

Makefile

@@ -12,7 +12,7 @@ dbuild:
 	docker build -t gor .
 
 dtest:
-	docker run -v `pwd`:/gopath/src/gor -t -i gor go test -v
+	docker run -v `pwd`:/gopath/src/gor -t -i --env GORACE="halt_on_error=1" gor go test -race -v
 
 drun:
 	docker run -v `pwd`:/gopath/src/gor -t -i gor go run $(SOURCE) --input-dummy=0 --output-dummy=0 --verbose

output_dummy.go

@@ -14,7 +14,7 @@ func NewDummyOutput(options string) (di *DummyOutput) {
 }
 
 func (i *DummyOutput) Write(data []byte) (int, error) {
-	fmt.Println("Writing message: ", data)
+	fmt.Println("Writing message: ", string(data))
 
 	return len(data), nil
 }