diff --git a/output/raw/output_test.go b/output/raw/output_test.go
new file mode 100644
index 0000000..925418d
--- /dev/null
+++ b/output/raw/output_test.go
@@ -0,0 +1,28 @@
+package raw
+
+import (
+	"os"
+	"testing"
+
+	"github.com/FreifunkBremen/yanic/runtime"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestOutput(t *testing.T) {
+	assert := assert.New(t)
+
+	out, err := Register(map[string]interface{}{})
+	assert.Error(err)
+	assert.Nil(out)
+
+	out, err = Register(map[string]interface{}{
+		"path": "/tmp/raw.json",
+	})
+	os.Remove("/tmp/raw.json")
+	assert.NoError(err)
+	assert.NotNil(out)
+
+	out.Save(&runtime.Nodes{})
+	_, err = os.Stat("/tmp/raw.json")
+	assert.NoError(err)
+}