Create internal DC package

mtglib/internal/dc/addr_test.go

@@ -0,0 +1,16 @@
+package dc_test
+
+import (
+	"testing"
+
+	"github.com/9seconds/mtg/v2/mtglib/internal/dc"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAddr(t *testing.T) {
+	t.Parallel()
+
+	addr := dc.Addr{Network: "tcp4", Address: "127.0.0.1:443"}
+
+	assert.Equal(t, "127.0.0.1:443", addr.String())
+}