add test for module registraion

internal/module/test/module_test.go

@@ -0,0 +1,81 @@
+package module_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/jwetzell/showbridge-go/internal/config"
+	"github.com/jwetzell/showbridge-go/internal/module"
+)
+
+type TestModule struct {
+}
+
+func (m *TestModule) Output(ctx context.Context, payload any) error {
+	return nil
+}
+
+func (m *TestModule) Start(ctx context.Context) error {
+	<-ctx.Done()
+	return nil
+}
+
+func (m *TestModule) Stop() {}
+
+func (m *TestModule) Type() string {
+	return "module.test"
+}
+
+func (m *TestModule) Id() string {
+	return "test"
+}
+
+func TestModuleBadRegistrationNoType(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatalf("module registration should have panicked but did not")
+		}
+	}()
+
+	module.RegisterModule(module.ModuleRegistration{
+		Type: "",
+		New: func(config config.ModuleConfig) (module.Module, error) {
+			return &TestModule{}, nil
+		},
+	})
+}
+
+func TestModuleBadRegistrationNoNew(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatalf("processor registration should have panicked but did not")
+		}
+	}()
+
+	module.RegisterModule(module.ModuleRegistration{
+		Type: "module.test",
+		New:  nil,
+	})
+}
+
+func TestModuleBadRegistrationExistingType(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Fatalf("processor registration should have panicked but did not")
+		}
+	}()
+
+	module.RegisterModule(module.ModuleRegistration{
+		Type: "module.test",
+		New: func(config config.ModuleConfig) (module.Module, error) {
+			return &TestModule{}, nil
+		},
+	})
+
+	module.RegisterModule(module.ModuleRegistration{
+		Type: "module.test",
+		New: func(config config.ModuleConfig) (module.Module, error) {
+			return &TestModule{}, nil
+		},
+	})
+}