Implement object deep inspector (#8456)

internal/ingress/inspector/ingress_test.go

@@ -0,0 +1,99 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package inspector
+
+import (
+	"testing"
+
+	networking "k8s.io/api/networking/v1"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+func makeSimpleIngress(hostname string, paths ...string) *networking.Ingress {
+
+	newIngress := networking.Ingress{
+		ObjectMeta: v1.ObjectMeta{
+			Name:      "test1",
+			Namespace: "default",
+		},
+		Spec: networking.IngressSpec{
+			Rules: []networking.IngressRule{
+				{
+					Host: hostname,
+					IngressRuleValue: networking.IngressRuleValue{
+						HTTP: &networking.HTTPIngressRuleValue{
+							Paths: []networking.HTTPIngressPath{},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	prefix := networking.PathTypePrefix
+	for _, path := range paths {
+		newPath := networking.HTTPIngressPath{
+			Path:     path,
+			PathType: &prefix,
+		}
+		newIngress.Spec.Rules[0].IngressRuleValue.HTTP.Paths = append(newIngress.Spec.Rules[0].IngressRuleValue.HTTP.Paths, newPath)
+	}
+	return &newIngress
+}
+
+func TestInspectIngress(t *testing.T) {
+	tests := []struct {
+		name     string
+		hostname string
+		path     []string
+		wantErr  bool
+	}{
+		{
+			name:     "invalid-path-etc",
+			hostname: "invalid.etc.com",
+			path: []string{
+				"/var/run/secrets",
+				"/mypage",
+			},
+			wantErr: true,
+		},
+		{
+			name:     "invalid-path-etc",
+			hostname: "invalid.etc.com",
+			path: []string{
+				"/etc/nginx",
+			},
+			wantErr: true,
+		},
+		{
+			name:     "invalid-path-etc",
+			hostname: "invalid.etc.com",
+			path: []string{
+				"/mypage",
+			},
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ingress := makeSimpleIngress(tt.hostname, tt.path...)
+			if err := InspectIngress(ingress); (err != nil) != tt.wantErr {
+				t.Errorf("InspectIngress() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}