add test for loading from registry for all modules

internal/module/test/udp-multicast_test.go

@@ -0,0 +1,31 @@
+package module_test
+
+import (
+	"testing"
+
+	"github.com/jwetzell/showbridge-go/internal/config"
+	"github.com/jwetzell/showbridge-go/internal/module"
+)
+
+func TestUDPMulticastFromRegistry(t *testing.T) {
+	registration, ok := module.ModuleRegistry["net.udp.multicast"]
+	if !ok {
+		t.Fatalf("udp.multicast module not registered")
+	}
+
+	moduleInstance, err := registration.New(config.ModuleConfig{
+		Type: "net.udp.multicast",
+		Params: map[string]any{
+			"ip":   "236.10.10.10",
+			"port": 56565.0,
+		},
+	})
+
+	if err != nil {
+		t.Fatalf("failed to create udp.multicast module: %s", err)
+	}
+
+	if moduleInstance.Type() != "net.udp.multicast" {
+		t.Fatalf("udp.multicast module has wrong type: %s", moduleInstance.Type())
+	}
+}