Implementation of serving not ready endpoints

pkg/provider/kubernetes/k8s/endpoint_test.go

@@ -0,0 +1,75 @@
+package k8s
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	v1 "k8s.io/api/discovery/v1"
+)
+
+func TestEndpointServing(t *testing.T) {
+	tests := []struct {
+		name     string
+		endpoint v1.Endpoint
+		want     bool
+	}{
+		{
+			name: "no status",
+			endpoint: v1.Endpoint{
+				Conditions: v1.EndpointConditions{
+					Ready:   nil,
+					Serving: nil,
+				},
+			},
+			want: false,
+		},
+		{
+			name: "ready",
+			endpoint: v1.Endpoint{
+				Conditions: v1.EndpointConditions{
+					Ready:   pointer(true),
+					Serving: nil,
+				},
+			},
+			want: true,
+		},
+		{
+			name: "not ready",
+			endpoint: v1.Endpoint{
+				Conditions: v1.EndpointConditions{
+					Ready:   pointer(false),
+					Serving: nil,
+				},
+			},
+			want: false,
+		},
+		{
+			name: "not ready and serving",
+			endpoint: v1.Endpoint{
+				Conditions: v1.EndpointConditions{
+					Ready:   pointer(false),
+					Serving: pointer(true),
+				},
+			},
+			want: true,
+		},
+		{
+			name: "not ready and not serving",
+			endpoint: v1.Endpoint{
+				Conditions: v1.EndpointConditions{
+					Ready:   pointer(false),
+					Serving: pointer(false),
+				},
+			},
+			want: false,
+		},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			got := EndpointServing(test.endpoint)
+			assert.Equal(t, test.want, got)
+		})
+	}
+}
+
+func pointer[T any](v T) *T { return &v }