test: add DeepCopy roundtrip tests for experimental packages

Add basic coverage for aiservicev1alpha1, backendlbv1alpha2,
tokenpolicyv1alpha1, and wasmpluginv1alpha1.

Author: mahmut-Abi

internal/gatewayapiexperimental/aiservicev1alpha1/types_test.go

@@ -0,0 +1,35 @@
+package aiservicev1alpha1
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+func TestDeepCopyRoundtrip(t *testing.T) {
+	original := &AIService{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "test-ai",
+			Namespace: "default",
+		},
+		Spec: AIServiceSpec{
+			Provider: "openai",
+			Format:   "openai",
+			Model:    "gpt-4",
+			Auth: AIServiceAuth{
+				Type:   "apiKey",
+				Secret: "my-secret",
+				Header: "Authorization",
+			},
+			Timeout: "30s",
+			Retry: AIRetryConfig{
+				MaxRetries: 3,
+				Backoff:    "exponential",
+			},
+		},
+	}
+	copied := original.DeepCopy()
+	assert.Equal(t, original, copied)
+	assert.NotSame(t, original, copied)
+}

internal/gatewayapiexperimental/backendlbv1alpha2/types_test.go

@@ -0,0 +1,26 @@
+package backendlbv1alpha2
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+func TestDeepCopyRoundtrip(t *testing.T) {
+	lbType := LoadBalancingStrategyTypeRoundRobin
+	original := &BackendLBPolicy{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "test-lb",
+			Namespace: "default",
+		},
+		Spec: BackendLBPolicySpec{
+			LoadBalancing: &LoadBalancingPolicy{
+				Type: &lbType,
+			},
+		},
+	}
+	copied := original.DeepCopy()
+	assert.Equal(t, original, copied)
+	assert.NotSame(t, original, copied)
+}

internal/gatewayapiexperimental/tokenpolicyv1alpha1/types_test.go

@@ -0,0 +1,30 @@
+package tokenpolicyv1alpha1
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	gatewayv1 "sigs.k8s.io/gateway-api/apis/v1"
+)
+
+func TestDeepCopyRoundtrip(t *testing.T) {
+	original := &TokenPolicy{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "test-policy",
+			Namespace: "default",
+		},
+		Spec: TokenPolicySpec{
+			TargetRefs: []gatewayv1.LocalPolicyTargetReference{
+				{Group: "gateway.networking.k8s.io", Kind: "HTTPRoute", Name: "my-route"},
+			},
+			TokensPerMinute:   1000,
+			RequestsPerMinute: 100,
+			Scope:             "per-user",
+			Burst:             1.5,
+		},
+	}
+	copied := original.DeepCopy()
+	assert.Equal(t, original, copied)
+	assert.NotSame(t, original, copied)
+}

internal/gatewayapiexperimental/wasmpluginv1alpha1/types_test.go

@@ -0,0 +1,33 @@
+package wasmpluginv1alpha1
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+func TestDeepCopyRoundtrip(t *testing.T) {
+	original := &WasmPlugin{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "test-plugin",
+			Namespace: "default",
+		},
+		Spec: WasmPluginSpec{
+			Wasm: WasmSource{
+				URL:    "https://example.com/plugin.wasm",
+				SHA256: "abcdef",
+			},
+			Hooks:   []WasmHook{HookOnRequest, HookOnResponse},
+			Config:  `{"key": "value"}`,
+			Sandbox: WasmSandbox{
+				MaxMemoryBytes:     65536,
+				MaxExecutionTimeMs: 100,
+				AllowNetwork:       true,
+			},
+		},
+	}
+	copied := original.DeepCopy()
+	assert.Equal(t, original, copied)
+	assert.NotSame(t, original, copied)
+}