diff --git a/controllers/bus/installer_test.go b/controllers/bus/installer_test.go
new file mode 100644
index 00000000..4d3a6f9d
--- /dev/null
+++ b/controllers/bus/installer_test.go
@@ -0,0 +1,12 @@
+package bus
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func Test_imageName(t *testing.T) {
+	name, err := imageName("nats:foo")
+	assert.NoError(t, err)
+	assert.Equal(t, "docker.io/nats:foo", name)
+}