/*
Copyright 2020 The CDI 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 controller

import (
	"context"
	"fmt"

	. "github.com/onsi/ginkgo"
	. "github.com/onsi/ginkgo/extensions/table"
	. "github.com/onsi/gomega"

	routev1 "github.com/openshift/api/route/v1"
	corev1 "k8s.io/api/core/v1"
	extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
	storagev1 "k8s.io/api/storage/v1"
	"k8s.io/apimachinery/pkg/api/resource"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/apimachinery/pkg/types"
	"k8s.io/client-go/kubernetes/scheme"
	"sigs.k8s.io/controller-runtime/pkg/client/fake"
	"sigs.k8s.io/controller-runtime/pkg/reconcile"
	logf "sigs.k8s.io/controller-runtime/pkg/runtime/log"

	cdiv1 "kubevirt.io/containerized-data-importer/pkg/apis/core/v1beta1"
	"kubevirt.io/containerized-data-importer/pkg/common"
	"kubevirt.io/containerized-data-importer/pkg/operator"
)

const (
	testURL         = "www.this.is.a.test.org"
	testRouteURL    = "cdi-uploadproxy.example.com"
	testServiceName = "cdi-proxyurl"
	testNamespace   = "cdi-test"
)

var (
	configLog = logf.Log.WithName("config-controller-test")
)

var _ = Describe("CDIConfig Controller reconcile loop", func() {
	It("Should not update if no changes happened", func() {
		reconciler, cdiConfig := createConfigReconciler(createConfigMap(operator.ConfigMapName, testNamespace))
		err := reconciler.client.Get(context.TODO(), types.NamespacedName{Name: reconciler.configName}, cdiConfig)
		_, err = reconciler.Reconcile(reconcile.Request{})
		Expect(err).ToNot(HaveOccurred())
		err = reconciler.client.Get(context.TODO(), types.NamespacedName{Name: reconciler.configName}, cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		// CDIConfig generated, now reconcile again without changes.
		_, err = reconciler.Reconcile(reconcile.Request{})
		Expect(err).ToNot(HaveOccurred())
	})

	DescribeTable("Should set proxyURL to override if no ingress or route exists", func(authority bool) {
		reconciler, cdiConfig := createConfigReconciler(createConfigMap(operator.ConfigMapName, testNamespace))
		_, err := reconciler.Reconcile(reconcile.Request{})
		err = reconciler.client.Get(context.TODO(), types.NamespacedName{Name: reconciler.configName}, cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		override := "www.override-something.org.tt.test"
		cdi, err := GetActiveCDI(reconciler.client)
		Expect(err).ToNot(HaveOccurred())
		cdi.Spec.Config = &cdiv1.CDIConfigSpec{
			UploadProxyURLOverride: &override,
		}
		if !authority {
			delete(cdi.Annotations, "cdi.kubevirt.io/configAuthority")
		}
		err = reconciler.client.Update(context.TODO(), cdi)
		Expect(err).ToNot(HaveOccurred())
		_, err = reconciler.Reconcile(reconcile.Request{})
		Expect(err).ToNot(HaveOccurred())
		err = reconciler.client.Get(context.TODO(), types.NamespacedName{Name: reconciler.configName}, cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		if authority {
			Expect(override).To(Equal(*cdiConfig.Status.UploadProxyURL))
		} else {
			Expect(cdiConfig.Status.UploadProxyURL).To(BeNil())
		}
	},
		Entry("as authority", true),
		Entry("not authority", false),
	)

	DescribeTable("Should set proxyURL to override if ingress or route exists", func(authority bool) {
		reconciler, cdiConfig := createConfigReconciler(createConfigMap(operator.ConfigMapName, testNamespace),
			createIngressList(
				*createIngress("test-ingress", "test-ns", testServiceName, testURL),
			),
		)
		_, err := reconciler.Reconcile(reconcile.Request{})
		err = reconciler.client.Get(context.TODO(), types.NamespacedName{Name: reconciler.configName}, cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		override := "www.override-something.org.tt.test"
		cdi, err := GetActiveCDI(reconciler.client)
		Expect(err).ToNot(HaveOccurred())
		cdi.Spec.Config = &cdiv1.CDIConfigSpec{
			UploadProxyURLOverride: &override,
		}
		if !authority {
			delete(cdi.Annotations, "cdi.kubevirt.io/configAuthority")
		}
		err = reconciler.client.Update(context.TODO(), cdi)
		Expect(err).ToNot(HaveOccurred())
		_, err = reconciler.Reconcile(reconcile.Request{})
		Expect(err).ToNot(HaveOccurred())
		err = reconciler.client.Get(context.TODO(), types.NamespacedName{Name: reconciler.configName}, cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		if authority {
			Expect(override).To(Equal(*cdiConfig.Status.UploadProxyURL))
		} else {
			Expect(cdiConfig.Status.UploadProxyURL).ToNot(BeNil())
			Expect(override).ToNot(Equal(*cdiConfig.Status.UploadProxyURL))
		}
	},
		Entry("as authority", true),
		Entry("not authority", false),
	)
})

var _ = Describe("Controller ingress reconcile loop", func() {
	It("Should set uploadProxyUrl to nil if no Ingress exists", func() {
		reconciler, cdiConfig := createConfigReconciler()
		err := reconciler.reconcileIngress(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.UploadProxyURL).To(BeNil())
	})

	It("Should set uploadProxyUrl correctly if ingress with correct serviceName exists", func() {
		reconciler, cdiConfig := createConfigReconciler(createIngressList(
			*createIngress("test-ingress", "test-ns", testServiceName, testURL),
		))
		reconciler.uploadProxyServiceName = testServiceName
		err := reconciler.reconcileIngress(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(*cdiConfig.Status.UploadProxyURL).To(Equal(testURL))
	})

	It("Should not set uploadProxyUrl if ingress with incorrect serviceName exists", func() {
		reconciler, cdiConfig := createConfigReconciler(createIngressList(
			*createIngress("test-ingress", "test-ns", "incorrect", testURL),
		))
		reconciler.uploadProxyServiceName = testServiceName
		err := reconciler.reconcileIngress(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.UploadProxyURL).To(BeNil())
	})

	It("Should set uploadProxyUrl correctly if multiple ingresses exist with one correct serviceName exists", func() {
		reconciler, cdiConfig := createConfigReconciler(createIngressList(
			*createIngress("test-ingress1", "test-ns", "service1", "invalidurl"),
			*createIngress("test-ingress2", "test-ns", "service2", "invalidurl2"),
			*createIngress("test-ingress3", "test-ns", testServiceName, testURL),
			*createIngress("test-ingress4", "test-ns", "service3", "invalidurl3"),
		))
		reconciler.uploadProxyServiceName = testServiceName
		err := reconciler.reconcileIngress(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(*cdiConfig.Status.UploadProxyURL).To(Equal(testURL))
	})
})

var _ = Describe("Controller route reconcile loop", func() {
	It("Should set uploadProxyUrl to nil if no Route exists", func() {
		reconciler, cdiConfig := createConfigReconciler()
		err := reconciler.reconcileRoute(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.UploadProxyURL).To(BeNil())
	})

	It("Should set uploadProxyUrl correctly if route with correct serviceName exists", func() {
		reconciler, cdiConfig := createConfigReconciler(createRouteList(
			*createRoute("test-ingress", "test-ns", testServiceName),
		))
		reconciler.uploadProxyServiceName = testServiceName
		err := reconciler.reconcileRoute(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(*cdiConfig.Status.UploadProxyURL).To(Equal(testRouteURL))
	})

	It("Should not set uploadProxyUrl if ingress with incorrect serviceName exists", func() {
		reconciler, cdiConfig := createConfigReconciler(createRouteList(
			*createRoute("test-ingress", "test-ns", "incorrect"),
		))
		reconciler.uploadProxyServiceName = testServiceName
		err := reconciler.reconcileRoute(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.UploadProxyURL).To(BeNil())
	})

	It("Should set uploadProxyUrl correctly if multiple ingresses exist with one correct serviceName exists", func() {
		reconciler, cdiConfig := createConfigReconciler(createRouteList(
			*createRoute("test-ingress1", "test-ns", "service1"),
			*createRoute("test-ingress2", "test-ns", "service2"),
			*createRoute("test-ingress3", "test-ns", testServiceName),
			*createRoute("test-ingress4", "test-ns", "service3"),
		))
		reconciler.uploadProxyServiceName = testServiceName
		err := reconciler.reconcileRoute(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(*cdiConfig.Status.UploadProxyURL).To(Equal(testRouteURL))
	})
})

var _ = Describe("Controller storage class reconcile loop", func() {
	It("Should set the scratchspaceStorageClass to blank if there is no default sc", func() {
		reconciler, cdiConfig := createConfigReconciler(createStorageClassList(
			*createStorageClass("test-default-sc", nil),
		))
		err := reconciler.reconcileStorageClass(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.ScratchSpaceStorageClass).To(Equal(""))
	})

	It("Should set the scratchspaceStorageClass to the default without override", func() {
		reconciler, cdiConfig := createConfigReconciler(createStorageClassList(
			*createStorageClass("test-default-sc", map[string]string{
				AnnDefaultStorageClass: "true",
			},
			)))
		err := reconciler.reconcileStorageClass(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.ScratchSpaceStorageClass).To(Equal("test-default-sc"))
	})

	It("Should set the scratchspaceStorageClass to the default without override and multiple sc", func() {
		reconciler, cdiConfig := createConfigReconciler(createStorageClassList(
			*createStorageClass("test-sc3", nil),
			*createStorageClass("test-default-sc", map[string]string{
				AnnDefaultStorageClass: "true",
			}),
			*createStorageClass("test-sc", nil),
			*createStorageClass("test-sc2", nil),
		))
		err := reconciler.reconcileStorageClass(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.ScratchSpaceStorageClass).To(Equal("test-default-sc"))
	})

	It("Should set the scratchspaceStorageClass to the override even with default", func() {
		reconciler, cdiConfig := createConfigReconciler(createStorageClassList(
			*createStorageClass("test-sc3", nil),
			*createStorageClass("test-default-sc", map[string]string{
				AnnDefaultStorageClass: "true",
			}),
			*createStorageClass("test-sc", nil),
			*createStorageClass("test-sc2", nil),
		))
		override := "test-sc"
		cdiConfig.Spec.ScratchSpaceStorageClass = &override
		err := reconciler.reconcileStorageClass(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.ScratchSpaceStorageClass).To(Equal(override))
	})

	It("Should set the scratchspaceStorageClass to the default with invalid override", func() {
		reconciler, cdiConfig := createConfigReconciler(createStorageClassList(
			*createStorageClass("test-sc3", nil),
			*createStorageClass("test-default-sc", map[string]string{
				AnnDefaultStorageClass: "true",
			}),
			*createStorageClass("test-sc", nil),
			*createStorageClass("test-sc2", nil),
		))
		override := "invalid"
		cdiConfig.Spec.ScratchSpaceStorageClass = &override
		err := reconciler.reconcileStorageClass(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.ScratchSpaceStorageClass).To(Equal("test-default-sc"))
	})
})

var _ = Describe("Controller create CDI config", func() {
	It("Should return existing cdi config", func() {
		reconciler, cdiConfig := createConfigReconciler()
		resConfig, err := reconciler.createCDIConfig()
		Expect(err).ToNot(HaveOccurred())
		Expect(resConfig).ToNot(BeNil())
		Expect(cdiConfig).ToNot(BeNil())
		Expect(*resConfig).To(Equal(*cdiConfig))
	})

	It("Should create a new CDIConfig if not found and configmap exists", func() {
		reconciler, cdiConfig := createConfigReconciler()
		Expect(cdiConfig.Name).To(Equal("cdiconfig"))

		// Make sure no cdi config object exists
		err := reconciler.client.Delete(context.TODO(), cdiConfig)
		Expect(err).To(Not(HaveOccurred()))

		owner := true
		configMap := &corev1.ConfigMap{
			ObjectMeta: metav1.ObjectMeta{
				Name:      "cdi-config",
				Namespace: "cdi",
				OwnerReferences: []metav1.OwnerReference{
					{
						Controller: &owner,
						Name:       "testowner",
					},
				},
			},
		}
		err = reconciler.client.Create(context.TODO(), configMap)
		Expect(err).To(Not(HaveOccurred()))

		reconciler.configName = "testconfig"
		resConfig, err := reconciler.createCDIConfig()
		Expect(err).ToNot(HaveOccurred())
		Expect(resConfig.Name).To(Equal("testconfig"))
		Expect(resConfig.ObjectMeta.OwnerReferences[0].Name).To(Equal("testowner"))
	})
})

var _ = Describe("getUrlFromIngress", func() {
	//TODO: Once we get newer version of client-go, we need to switch to networking ingress.
	It("Should return the url if backend service matches", func() {
		ingress := &extensionsv1beta1.Ingress{
			TypeMeta: metav1.TypeMeta{
				APIVersion: "extensions/v1beta1",
			},
			ObjectMeta: metav1.ObjectMeta{
				Name:      "test",
				Namespace: "test",
			},
			Spec: extensionsv1beta1.IngressSpec{
				Backend: &extensionsv1beta1.IngressBackend{
					ServiceName: testServiceName,
				},
				Rules: []extensionsv1beta1.IngressRule{
					{Host: testURL},
				},
			},
		}
		resURL := getURLFromIngress(ingress, testServiceName)
		Expect(resURL).To(Equal(testURL))
	})

	It("Should return blank if backend service does not match", func() {
		ingress := &extensionsv1beta1.Ingress{
			TypeMeta: metav1.TypeMeta{
				APIVersion: "extensions/v1beta1",
			},
			ObjectMeta: metav1.ObjectMeta{
				Name:      "test",
				Namespace: "test",
			},
			Spec: extensionsv1beta1.IngressSpec{
				Backend: &extensionsv1beta1.IngressBackend{
					ServiceName: testServiceName,
				},
				Rules: []extensionsv1beta1.IngressRule{
					{Host: testURL},
				},
			},
		}
		resURL := getURLFromIngress(ingress, "somethingelse")
		Expect(resURL).To(Equal(""))
	})

	It("Should return the url if first rule backend service matches", func() {
		ingress := &extensionsv1beta1.Ingress{
			TypeMeta: metav1.TypeMeta{
				APIVersion: "extensions/v1beta1",
			},
			ObjectMeta: metav1.ObjectMeta{
				Name:      "test",
				Namespace: "test",
			},
			Spec: extensionsv1beta1.IngressSpec{
				Rules: []extensionsv1beta1.IngressRule{
					{
						IngressRuleValue: extensionsv1beta1.IngressRuleValue{
							HTTP: &extensionsv1beta1.HTTPIngressRuleValue{
								Paths: []extensionsv1beta1.HTTPIngressPath{
									{
										Backend: extensionsv1beta1.IngressBackend{
											ServiceName: testServiceName,
										},
									},
								},
							},
						},
						Host: testURL,
					},
				},
			},
		}
		resURL := getURLFromIngress(ingress, testServiceName)
		Expect(resURL).To(Equal(testURL))
	})

	It("Should return the url if any rule backend servicename matches", func() {
		ingress := &extensionsv1beta1.Ingress{
			TypeMeta: metav1.TypeMeta{
				APIVersion: "extensions/v1beta1",
			},
			ObjectMeta: metav1.ObjectMeta{
				Name:      "test",
				Namespace: "test",
			},
			Spec: extensionsv1beta1.IngressSpec{
				Rules: []extensionsv1beta1.IngressRule{
					{
						IngressRuleValue: extensionsv1beta1.IngressRuleValue{
							HTTP: &extensionsv1beta1.HTTPIngressRuleValue{
								Paths: []extensionsv1beta1.HTTPIngressPath{
									{
										Backend: extensionsv1beta1.IngressBackend{
											ServiceName: "service1",
										},
									},
									{
										Backend: extensionsv1beta1.IngressBackend{
											ServiceName: "service2",
										},
									},
									{
										Backend: extensionsv1beta1.IngressBackend{
											ServiceName: testServiceName,
										},
									},
									{
										Backend: extensionsv1beta1.IngressBackend{
											ServiceName: "service4",
										},
									},
								},
							},
						},
						Host: testURL,
					},
				},
			},
		}
		resURL := getURLFromIngress(ingress, testServiceName)
		Expect(resURL).To(Equal(testURL))
	})

	It("Should return blank if no http rule exists", func() {
		ingress := &extensionsv1beta1.Ingress{
			TypeMeta: metav1.TypeMeta{
				APIVersion: "extensions/v1beta1",
			},
			ObjectMeta: metav1.ObjectMeta{
				Name:      "test",
				Namespace: "test",
			},
			Spec: extensionsv1beta1.IngressSpec{
				Rules: []extensionsv1beta1.IngressRule{
					{
						IngressRuleValue: extensionsv1beta1.IngressRuleValue{},
					},
				},
			},
		}
		resURL := getURLFromIngress(ingress, testServiceName)
		Expect(resURL).To(Equal(""))
	})
})

var _ = Describe("getUrlFromRoute", func() {
	It("Should return the URL if the route spec to name matches and status ingress is correct", func() {
		route := &routev1.Route{
			TypeMeta: metav1.TypeMeta{
				APIVersion: "v1",
			},
			ObjectMeta: metav1.ObjectMeta{
				Name:      "test",
				Namespace: "test",
			},
			Spec: routev1.RouteSpec{
				To: routev1.RouteTargetReference{
					Kind: "Service",
					Name: testServiceName,
				},
			},
			Status: routev1.RouteStatus{
				Ingress: []routev1.RouteIngress{
					{Host: testRouteURL},
				},
			},
		}
		resURL := getURLFromRoute(route, testServiceName)
		Expect(resURL).To(Equal(testRouteURL))
	})

	It("Should return blank if the route spec to name does not match", func() {
		route := &routev1.Route{
			TypeMeta: metav1.TypeMeta{
				APIVersion: "v1",
			},
			ObjectMeta: metav1.ObjectMeta{
				Name:      "test",
				Namespace: "test",
			},
			Spec: routev1.RouteSpec{
				To: routev1.RouteTargetReference{
					Kind: "Service",
					Name: "doesntmatch",
				},
			},
			Status: routev1.RouteStatus{
				Ingress: []routev1.RouteIngress{
					{Host: testRouteURL},
				},
			},
		}
		resURL := getURLFromRoute(route, testServiceName)
		Expect(resURL).To(Equal(""))
	})

	It("Should return blank if the route spec to name matches and status ingress not there", func() {
		route := &routev1.Route{
			TypeMeta: metav1.TypeMeta{
				APIVersion: "v1",
			},
			ObjectMeta: metav1.ObjectMeta{
				Name:      "test",
				Namespace: "test",
			},
			Spec: routev1.RouteSpec{
				To: routev1.RouteTargetReference{
					Kind: "Service",
					Name: testServiceName,
				},
			},
			Status: routev1.RouteStatus{},
		}
		resURL := getURLFromRoute(route, testServiceName)
		Expect(resURL).To(Equal(""))
	})
})

var _ = Describe("Controller default pod resource requirements reconcile loop", func() {
	var testValue int64 = 1

	It("Should set the defaultPodResourceRequirements to the override value", func() {
		defaultResourceRequirements := createDefaultPodResourceRequirements(1, 2, 3, 4)

		reconciler, cdiConfig := createConfigReconciler()
		cdiConfig.Spec.PodResourceRequirements = defaultResourceRequirements

		err := reconciler.reconcileDefaultPodResourceRequirements(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.DefaultPodResourceRequirements).To(Equal(defaultResourceRequirements))
	})

	It("Should set the defaultPodResourceRequirements to the default if ResourceRequirements.Limits and ResourceRequirements.Requests are nil", func() {
		defaultResourceRequirements := &corev1.ResourceRequirements{
			Limits:   nil,
			Requests: nil,
		}

		reconciler, cdiConfig := createConfigReconciler()
		cdiConfig.Spec.PodResourceRequirements = defaultResourceRequirements

		err := reconciler.reconcileDefaultPodResourceRequirements(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.DefaultPodResourceRequirements).To(Equal(createDefaultPodResourceRequirements(0, 0, 0, 0)))
	})

	It("Should set the defaultPodResourceRequirements to the default if all fields are null except ResourceRequirements.Limits.cpu", func() {
		defaultResourceRequirements := &corev1.ResourceRequirements{
			Limits:   corev1.ResourceList{},
			Requests: nil,
		}

		defaultResourceRequirements.Limits[corev1.ResourceCPU] = *resource.NewQuantity(testValue, resource.DecimalSI)
		fmt.Println(defaultResourceRequirements)

		reconciler, cdiConfig := createConfigReconciler()
		cdiConfig.Spec.PodResourceRequirements = defaultResourceRequirements

		err := reconciler.reconcileDefaultPodResourceRequirements(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.DefaultPodResourceRequirements).To(Equal(createDefaultPodResourceRequirements(testValue, 0, 0, 0)))
	})

	It("Should set the defaultPodResourceRequirements to the default if all fields are null except ResourceRequirements.Limits.memory", func() {
		defaultResourceRequirements := &corev1.ResourceRequirements{
			Limits:   corev1.ResourceList{},
			Requests: nil,
		}

		defaultResourceRequirements.Limits[corev1.ResourceMemory] = *resource.NewQuantity(testValue, resource.DecimalSI)
		fmt.Println(defaultResourceRequirements)

		reconciler, cdiConfig := createConfigReconciler()
		cdiConfig.Spec.PodResourceRequirements = defaultResourceRequirements

		err := reconciler.reconcileDefaultPodResourceRequirements(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.DefaultPodResourceRequirements).To(Equal(createDefaultPodResourceRequirements(0, testValue, 0, 0)))
	})

	It("Should set the defaultPodResourceRequirements to the default if all fields are null except ResourceRequirements.Requests.cpu", func() {
		defaultResourceRequirements := &corev1.ResourceRequirements{
			Limits:   nil,
			Requests: corev1.ResourceList{},
		}

		defaultResourceRequirements.Requests[corev1.ResourceCPU] = *resource.NewQuantity(testValue, resource.DecimalSI)
		fmt.Println(defaultResourceRequirements)

		reconciler, cdiConfig := createConfigReconciler()
		cdiConfig.Spec.PodResourceRequirements = defaultResourceRequirements

		err := reconciler.reconcileDefaultPodResourceRequirements(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.DefaultPodResourceRequirements).To(Equal(createDefaultPodResourceRequirements(0, 0, testValue, 0)))
	})

	It("Should set the defaultPodResourceRequirements to the default if all fields are null except ResourceRequirements.Requests.memory", func() {
		defaultResourceRequirements := &corev1.ResourceRequirements{
			Limits:   nil,
			Requests: corev1.ResourceList{},
		}

		defaultResourceRequirements.Requests[corev1.ResourceMemory] = *resource.NewQuantity(testValue, resource.DecimalSI)
		fmt.Println(defaultResourceRequirements)

		reconciler, cdiConfig := createConfigReconciler()
		cdiConfig.Spec.PodResourceRequirements = defaultResourceRequirements

		err := reconciler.reconcileDefaultPodResourceRequirements(cdiConfig)
		Expect(err).ToNot(HaveOccurred())
		Expect(cdiConfig.Status.DefaultPodResourceRequirements).To(Equal(createDefaultPodResourceRequirements(0, 0, 0, testValue)))
	})
})

func createConfigReconciler(objects ...runtime.Object) (*CDIConfigReconciler, *cdiv1.CDIConfig) {
	objs := []runtime.Object{}
	objs = append(objs, objects...)
	// Append empty CDIConfig object that normally is created by the reconcile loop
	cdiConfig := MakeEmptyCDIConfigSpec("cdiconfig")
	objs = append(objs, cdiConfig)
	// Register operator types with the runtime scheme.
	s := scheme.Scheme
	cdiv1.AddToScheme(s)
	extensionsv1beta1.AddToScheme(s)
	routev1.AddToScheme(s)
	storagev1.AddToScheme(s)

	cdi := &cdiv1.CDI{
		ObjectMeta: metav1.ObjectMeta{
			Name: "cdi",
			Annotations: map[string]string{
				"cdi.kubevirt.io/configAuthority": "",
			},
		},
	}

	objs = append(objs, cdi)

	// Create a fake client to mock API calls.
	cl := fake.NewFakeClientWithScheme(s, objs...)

	// Create a ReconcileMemcached object with the scheme and fake client.
	r := &CDIConfigReconciler{
		client:                 cl,
		uncachedClient:         cl,
		scheme:                 s,
		log:                    configLog,
		configName:             "cdiconfig",
		cdiNamespace:           testNamespace,
		uploadProxyServiceName: testServiceName,
	}
	return r, cdiConfig
}

func createStorageClassList(storageClasses ...storagev1.StorageClass) *storagev1.StorageClassList {
	list := &storagev1.StorageClassList{
		Items: []storagev1.StorageClass{},
	}
	list.Items = append(list.Items, storageClasses...)
	return list
}

func createRouteList(routes ...routev1.Route) *routev1.RouteList {
	list := &routev1.RouteList{
		Items: []routev1.Route{},
	}
	list.Items = append(list.Items, routes...)
	return list
}

func createRoute(name, ns, service string) *routev1.Route {
	return &routev1.Route{
		TypeMeta: metav1.TypeMeta{
			APIVersion: "v1",
		},
		ObjectMeta: metav1.ObjectMeta{
			Name:      name,
			Namespace: ns,
		},
		Spec: routev1.RouteSpec{
			To: routev1.RouteTargetReference{
				Kind: "Service",
				Name: service,
			},
		},
		Status: routev1.RouteStatus{
			Ingress: []routev1.RouteIngress{
				{Host: testRouteURL},
			},
		},
	}
}

func createIngressList(ingresses ...extensionsv1beta1.Ingress) *extensionsv1beta1.IngressList {
	list := &extensionsv1beta1.IngressList{
		Items: []extensionsv1beta1.Ingress{},
	}
	list.Items = append(list.Items, ingresses...)
	return list
}

func createIngress(name, ns, service, url string) *extensionsv1beta1.Ingress {
	return &extensionsv1beta1.Ingress{
		TypeMeta: metav1.TypeMeta{
			APIVersion: "extensions/v1beta1",
		},
		ObjectMeta: metav1.ObjectMeta{
			Name:      name,
			Namespace: ns,
		},
		Spec: extensionsv1beta1.IngressSpec{
			Backend: &extensionsv1beta1.IngressBackend{
				ServiceName: service,
			},
			Rules: []extensionsv1beta1.IngressRule{
				{Host: url},
			},
		},
	}
}

func createConfigMap(name, namespace string) *corev1.ConfigMap {
	isController := true
	cm := &corev1.ConfigMap{
		ObjectMeta: metav1.ObjectMeta{
			Name:      name,
			Namespace: namespace,
			Labels: map[string]string{
				common.CDIComponentLabel: "cdi.kubevirt.io",
			},
			OwnerReferences: []metav1.OwnerReference{
				{
					Name:       "some owner",
					Controller: &isController,
				},
			},
		},
	}
	return cm
}