func TestMatchingSecurityContextConstraints(t *testing.T) {
	sccs := []*kapi.SecurityContextConstraints{
		{
			ObjectMeta: kapi.ObjectMeta{
				Name: "match group",
			},
			Groups: []string{"group"},
		},
		{
			ObjectMeta: kapi.ObjectMeta{
				Name: "match user",
			},
			Users: []string{"user"},
		},
	}

	cache := &oscache.IndexerToSecurityContextConstraintsLister{
		Indexer: cache.NewIndexer(cache.MetaNamespaceKeyFunc,
			cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}),
	}
	for _, scc := range sccs {
		cache.Add(scc)
	}

	// single match cases
	testCases := map[string]struct {
		userInfo    user.Info
		expectedSCC string
	}{
		"find none": {
			userInfo: &user.DefaultInfo{
				Name:   "foo",
				Groups: []string{"bar"},
			},
		},
		"find user": {
			userInfo: &user.DefaultInfo{
				Name:   "user",
				Groups: []string{"bar"},
			},
			expectedSCC: "match user",
		},
		"find group": {
			userInfo: &user.DefaultInfo{
				Name:   "foo",
				Groups: []string{"group"},
			},
			expectedSCC: "match group",
		},
	}

	for k, v := range testCases {
		sccMatcher := oscc.NewDefaultSCCMatcher(cache)
		sccs, err := sccMatcher.FindApplicableSCCs(v.userInfo)
		if err != nil {
			t.Errorf("%s received error %v", k, err)
			continue
		}
		if v.expectedSCC == "" {
			if len(sccs) > 0 {
				t.Errorf("%s expected to match 0 sccs but found %d: %#v", k, len(sccs), sccs)
			}
		}
		if v.expectedSCC != "" {
			if len(sccs) != 1 {
				t.Errorf("%s returned more than one scc, use case can not validate: %#v", k, sccs)
				continue
			}
			if v.expectedSCC != sccs[0].Name {
				t.Errorf("%s expected to match %s but found %s", k, v.expectedSCC, sccs[0].Name)
			}
		}
	}

	// check that we can match many at once
	userInfo := &user.DefaultInfo{
		Name:   "user",
		Groups: []string{"group"},
	}
	sccMatcher := oscc.NewDefaultSCCMatcher(cache)
	sccs, err := sccMatcher.FindApplicableSCCs(userInfo)
	if err != nil {
		t.Fatalf("matching many sccs returned error %v", err)
	}
	if len(sccs) != 2 {
		t.Errorf("matching many sccs expected to match 2 sccs but found %d: %#v", len(sccs), sccs)
	}
}

func (c *MasterConfig) GetRestStorage() map[string]rest.Storage {
	kubeletClient, err := kubeletclient.NewStaticKubeletClient(c.KubeletClientConfig)
	if err != nil {
		glog.Fatalf("Unable to configure Kubelet client: %v", err)
	}

	// TODO: allow the system CAs and the local CAs to be joined together.
	importTransport, err := restclient.TransportFor(&restclient.Config{})
	if err != nil {
		glog.Fatalf("Unable to configure a default transport for importing: %v", err)
	}
	insecureImportTransport, err := restclient.TransportFor(&restclient.Config{Insecure: true})
	if err != nil {
		glog.Fatalf("Unable to configure a default transport for importing: %v", err)
	}

	buildStorage, buildDetailsStorage, err := buildetcd.NewREST(c.RESTOptionsGetter)
	checkStorageErr(err)
	buildRegistry := buildregistry.NewRegistry(buildStorage)

	buildConfigStorage, err := buildconfigetcd.NewREST(c.RESTOptionsGetter)
	checkStorageErr(err)
	buildConfigRegistry := buildconfigregistry.NewRegistry(buildConfigStorage)

	deployConfigStorage, deployConfigStatusStorage, deployConfigScaleStorage, err := deployconfigetcd.NewREST(c.RESTOptionsGetter)

	dcInstantiateOriginClient, dcInstantiateKubeClient := c.DeploymentConfigInstantiateClients()
	dcInstantiateStorage := deployconfiginstantiate.NewREST(
		*deployConfigStorage.Store,
		dcInstantiateOriginClient,
		dcInstantiateKubeClient,
		c.ExternalVersionCodec,
		c.AdmissionControl,
	)

	checkStorageErr(err)
	deployConfigRegistry := deployconfigregistry.NewRegistry(deployConfigStorage)

	routeAllocator := c.RouteAllocator()

	routeStorage, routeStatusStorage, err := routeetcd.NewREST(c.RESTOptionsGetter, routeAllocator)
	checkStorageErr(err)

	hostSubnetStorage, err := hostsubnetetcd.NewREST(c.RESTOptionsGetter)
	checkStorageErr(err)
	netNamespaceStorage, err := netnamespaceetcd.NewREST(c.RESTOptionsGetter)
	checkStorageErr(err)
	clusterNetworkStorage, err := clusternetworketcd.NewREST(c.RESTOptionsGetter)
	checkStorageErr(err)
	egressNetworkPolicyStorage, err := egressnetworkpolicyetcd.NewREST(c.RESTOptionsGetter)
	checkStorageErr(err)

	userStorage, err := useretcd.NewREST(c.RESTOptionsGetter)
	checkStorageErr(err)
	userRegistry := userregistry.NewRegistry(userStorage)
	identityStorage, err := identityetcd.NewREST(c.RESTOptionsGetter)
	checkStorageErr(err)
	identityRegistry := identityregistry.NewRegistry(identityStorage)
	userIdentityMappingStorage := useridentitymapping.NewREST(userRegistry, identityRegistry)
	groupStorage, err := groupetcd.NewREST(c.RESTOptionsGetter)
	checkStorageErr(err)

	policyStorage, err := policyetcd.NewStorage(c.RESTOptionsGetter)
	checkStorageErr(err)
	policyRegistry := policyregistry.NewRegistry(policyStorage)
	policyBindingStorage, err := policybindingetcd.NewStorage(c.RESTOptionsGetter)
	checkStorageErr(err)
	policyBindingRegistry := policybindingregistry.NewRegistry(policyBindingStorage)

	clusterPolicyStorage, err := clusterpolicystorage.NewStorage(c.RESTOptionsGetter)
	checkStorageErr(err)
	clusterPolicyRegistry := clusterpolicyregistry.NewRegistry(clusterPolicyStorage)
	clusterPolicyBindingStorage, err := clusterpolicybindingstorage.NewStorage(c.RESTOptionsGetter)
	checkStorageErr(err)
	clusterPolicyBindingRegistry := clusterpolicybindingregistry.NewRegistry(clusterPolicyBindingStorage)

	selfSubjectRulesReviewStorage := selfsubjectrulesreview.NewREST(c.RuleResolver, c.Informers.ClusterPolicies().Lister().ClusterPolicies())
	subjectRulesReviewStorage := subjectrulesreview.NewREST(c.RuleResolver, c.Informers.ClusterPolicies().Lister().ClusterPolicies())

	roleStorage := rolestorage.NewVirtualStorage(policyRegistry, c.RuleResolver)
	roleBindingStorage := rolebindingstorage.NewVirtualStorage(policyBindingRegistry, c.RuleResolver)
	clusterRoleStorage := clusterrolestorage.NewClusterRoleStorage(clusterPolicyRegistry, clusterPolicyBindingRegistry)
	clusterRoleBindingStorage := clusterrolebindingstorage.NewClusterRoleBindingStorage(clusterPolicyRegistry, clusterPolicyBindingRegistry)

	subjectAccessReviewStorage := subjectaccessreview.NewREST(c.Authorizer)
	subjectAccessReviewRegistry := subjectaccessreview.NewRegistry(subjectAccessReviewStorage)
	localSubjectAccessReviewStorage := localsubjectaccessreview.NewREST(subjectAccessReviewRegistry)
	resourceAccessReviewStorage := resourceaccessreview.NewREST(c.Authorizer)
	resourceAccessReviewRegistry := resourceaccessreview.NewRegistry(resourceAccessReviewStorage)
	localResourceAccessReviewStorage := localresourceaccessreview.NewREST(resourceAccessReviewRegistry)

	podSecurityPolicyReviewStorage := podsecuritypolicyreview.NewREST(oscc.NewDefaultSCCMatcher(c.Informers.SecurityContextConstraints().Lister()), clientadapter.FromUnversionedClient(c.PrivilegedLoopbackKubernetesClient))
	podSecurityPolicySubjectStorage := podsecuritypolicysubjectreview.NewREST(oscc.NewDefaultSCCMatcher(c.Informers.SecurityContextConstraints().Lister()), clientadapter.FromUnversionedClient(c.PrivilegedLoopbackKubernetesClient))
	podSecurityPolicySelfSubjectReviewStorage := podsecuritypolicyselfsubjectreview.NewREST(oscc.NewDefaultSCCMatcher(c.Informers.SecurityContextConstraints().Lister()), clientadapter.FromUnversionedClient(c.PrivilegedLoopbackKubernetesClient))

	imageStorage, err := imageetcd.NewREST(c.RESTOptionsGetter)
	checkStorageErr(err)
	imageRegistry := image.NewRegistry(imageStorage)
	imageSignatureStorage := imagesignature.NewREST(c.PrivilegedLoopbackOpenShiftClient.Images())
	imageStreamSecretsStorage := imagesecret.NewREST(c.ImageStreamSecretClient())
//.........这里部分代码省略.........

func TestAllowed(t *testing.T) {
	testcases := map[string]struct {
		sccs []*kapi.SecurityContextConstraints
		// patch function modify nominal PodSecurityPolicySubjectReview request
		patch func(p *securityapi.PodSecurityPolicySubjectReview)
		check func(p *securityapi.PodSecurityPolicySubjectReview) (bool, string)
	}{
		"nominal case": {
			sccs: []*kapi.SecurityContextConstraints{
				admissionttesting.UserScc("bar"),
				admissionttesting.UserScc("foo"),
			},
			check: func(p *securityapi.PodSecurityPolicySubjectReview) (bool, string) {
				// must be different due defaulting
				return p.Status.Template.Spec.SecurityContext != nil, "Status.Template should be defaulted"
			},
		},
		// if PodTemplateSpec.Spec.ServiceAccountName is empty it will not be defaulted
		"empty service account name": {
			sccs: []*kapi.SecurityContextConstraints{
				admissionttesting.UserScc("bar"),
				admissionttesting.UserScc("foo"),
			},
			patch: func(p *securityapi.PodSecurityPolicySubjectReview) {
				p.Spec.Template.Spec.ServiceAccountName = "" // empty SA in podSpec
			},

			check: func(p *securityapi.PodSecurityPolicySubjectReview) (bool, string) {
				return p.Status.Template.Spec.SecurityContext == nil, "Status.PodTemplateSpec should not be defaulted"
			},
		},
		// If you specify "User" but not "Group", then is it interpreted as "What if User were not a member of any groups.
		"user - no group": {
			sccs: []*kapi.SecurityContextConstraints{
				admissionttesting.UserScc("bar"),
				admissionttesting.UserScc("foo"),
			},
			patch: func(p *securityapi.PodSecurityPolicySubjectReview) {
				p.Spec.Groups = nil
			},
		},
		// If User and Groups are empty, then the check is performed using *only* the ServiceAccountName in the PodTemplateSpec.
		"no user - no group": {
			sccs: []*kapi.SecurityContextConstraints{
				admissionttesting.UserScc("bar"),
				admissionttesting.UserScc("foo"),
				saSCC(),
			},
			patch: func(p *securityapi.PodSecurityPolicySubjectReview) {
				p.Spec.Groups = nil
				p.Spec.User = ""
			},
		},
	}

	namespace := admissionttesting.CreateNamespaceForTest()
	for testName, testcase := range testcases {
		serviceAccount := admissionttesting.CreateSAForTest()
		reviewRequest := &securityapi.PodSecurityPolicySubjectReview{
			Spec: securityapi.PodSecurityPolicySubjectReviewSpec{
				Template: kapi.PodTemplateSpec{
					Spec: kapi.PodSpec{
						Containers:         []kapi.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent"}},
						RestartPolicy:      kapi.RestartPolicyAlways,
						SecurityContext:    &kapi.PodSecurityContext{},
						DNSPolicy:          kapi.DNSClusterFirst,
						ServiceAccountName: "default",
					},
				},
				User:   "foo",
				Groups: []string{"bar", "baz"},
			},
		}
		if testcase.patch != nil {
			testcase.patch(reviewRequest) // local modification of the nominal case
		}

		cache := &oscache.IndexerToSecurityContextConstraintsLister{
			Indexer: cache.NewIndexer(cache.MetaNamespaceKeyFunc,
				cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}),
		}
		for _, scc := range testcase.sccs {
			if err := cache.Add(scc); err != nil {
				t.Fatalf("error adding sccs to store: %v", err)
			}
		}

		csf := clientsetfake.NewSimpleClientset(namespace, serviceAccount)
		storage := REST{oscc.NewDefaultSCCMatcher(cache), csf}
		ctx := kapi.WithNamespace(kapi.NewContext(), kapi.NamespaceAll)
		obj, err := storage.Create(ctx, reviewRequest)
		if err != nil {
			t.Errorf("%s - Unexpected error: %v", testName, err)
			continue
		}
		pspsr, ok := obj.(*securityapi.PodSecurityPolicySubjectReview)
		if !ok {
			t.Errorf("%s - Unable to convert created runtime.Object to PodSecurityPolicySubjectReview", testName)
			continue
		}
//.........这里部分代码省略.........

// Admit determines if the pod should be admitted based on the requested security context
// and the available SCCs.
//
// 1.  Find SCCs for the user.
// 2.  Find SCCs for the SA.  If there is an error retrieving SA SCCs it is not fatal.
// 3.  Remove duplicates between the user/SA SCCs.
// 4.  Create the providers, includes setting pre-allocated values if necessary.
// 5.  Try to generate and validate an SCC with providers.  If we find one then admit the pod
//     with the validated SCC.  If we don't find any reject the pod and give all errors from the
//     failed attempts.
// On updates, the BeforeUpdate of the pod strategy only zeroes out the status.  That means that
// any change that claims the pod is no longer privileged will be removed.  That should hold until
// we get a true old/new set of objects in.
func (c *constraint) Admit(a kadmission.Attributes) error {
	if a.GetResource().GroupResource() != kapi.Resource("pods") {
		return nil
	}
	if len(a.GetSubresource()) != 0 {
		return nil
	}

	pod, ok := a.GetObject().(*kapi.Pod)
	// if we can't convert then we don't handle this object so just return
	if !ok {
		return nil
	}

	// get all constraints that are usable by the user
	glog.V(4).Infof("getting security context constraints for pod %s (generate: %s) in namespace %s with user info %v", pod.Name, pod.GenerateName, a.GetNamespace(), a.GetUserInfo())

	sccMatcher := oscc.NewDefaultSCCMatcher(c.sccLister)
	matchedConstraints, err := sccMatcher.FindApplicableSCCs(a.GetUserInfo())
	if err != nil {
		return kadmission.NewForbidden(a, err)
	}

	// get all constraints that are usable by the SA
	if len(pod.Spec.ServiceAccountName) > 0 {
		userInfo := serviceaccount.UserInfo(a.GetNamespace(), pod.Spec.ServiceAccountName, "")
		glog.V(4).Infof("getting security context constraints for pod %s (generate: %s) with service account info %v", pod.Name, pod.GenerateName, userInfo)
		saConstraints, err := sccMatcher.FindApplicableSCCs(userInfo)
		if err != nil {
			return kadmission.NewForbidden(a, err)
		}
		matchedConstraints = append(matchedConstraints, saConstraints...)
	}

	// remove duplicate constraints and sort
	matchedConstraints = deduplicateSecurityContextConstraints(matchedConstraints)
	sort.Sort(ByPriority(matchedConstraints))
	providers, errs := c.createProvidersFromConstraints(a.GetNamespace(), matchedConstraints)
	logProviders(pod, providers, errs)

	if len(providers) == 0 {
		return kadmission.NewForbidden(a, fmt.Errorf("no providers available to validate pod request"))
	}

	// all containers in a single pod must validate under a single provider or we will reject the request
	validationErrs := field.ErrorList{}
	for _, provider := range providers {
		if errs := assignSecurityContext(provider, pod, field.NewPath(fmt.Sprintf("provider %s: ", provider.GetSCCName()))); len(errs) > 0 {
			validationErrs = append(validationErrs, errs...)
			continue
		}

		// the entire pod validated, annotate and accept the pod
		glog.V(4).Infof("pod %s (generate: %s) validated against provider %s", pod.Name, pod.GenerateName, provider.GetSCCName())
		if pod.ObjectMeta.Annotations == nil {
			pod.ObjectMeta.Annotations = map[string]string{}
		}
		pod.ObjectMeta.Annotations[allocator.ValidatedSCCAnnotation] = provider.GetSCCName()
		return nil
	}

	// we didn't validate against any security context constraint provider, reject the pod and give the errors for each attempt
	glog.V(4).Infof("unable to validate pod %s (generate: %s) against any security context constraint: %v", pod.Name, pod.GenerateName, validationErrs)
	return kadmission.NewForbidden(a, fmt.Errorf("unable to validate against any security context constraint: %v", validationErrs))
}

func TestRequests(t *testing.T) {
	testcases := map[string]struct {
		request        *securityapi.PodSecurityPolicySubjectReview
		sccs           []*kapi.SecurityContextConstraints
		serviceAccount *kapi.ServiceAccount
		errorMessage   string
	}{
		"invalid request": {
			request: &securityapi.PodSecurityPolicySubjectReview{
				Spec: securityapi.PodSecurityPolicySubjectReviewSpec{
					Template: kapi.PodTemplateSpec{
						Spec: kapi.PodSpec{
							Containers:         []kapi.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent"}},
							RestartPolicy:      kapi.RestartPolicyAlways,
							SecurityContext:    &kapi.PodSecurityContext{},
							DNSPolicy:          kapi.DNSClusterFirst,
							ServiceAccountName: "A.B.C.D",
						},
					},
					User:   "foo",
					Groups: []string{"bar", "baz"},
				},
			},
			errorMessage: `PodSecurityPolicySubjectReview "" is invalid: spec.template.spec.serviceAccountName: Invalid value: "A.B.C.D": must match the regex [a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)* (e.g. 'example.com')`,
		},
		"no provider": {
			request: &securityapi.PodSecurityPolicySubjectReview{
				Spec: securityapi.PodSecurityPolicySubjectReviewSpec{
					Template: kapi.PodTemplateSpec{
						Spec: kapi.PodSpec{
							Containers:         []kapi.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent"}},
							RestartPolicy:      kapi.RestartPolicyAlways,
							SecurityContext:    &kapi.PodSecurityContext{},
							DNSPolicy:          kapi.DNSClusterFirst,
							ServiceAccountName: "default",
						},
					},
				},
			},
			// no errorMessage only pspr empty
		},
		"container capability": {
			request: &securityapi.PodSecurityPolicySubjectReview{
				Spec: securityapi.PodSecurityPolicySubjectReviewSpec{
					Template: kapi.PodTemplateSpec{
						Spec: kapi.PodSpec{
							Containers: []kapi.Container{
								{
									Name:            "ctr",
									Image:           "image",
									ImagePullPolicy: "IfNotPresent",
									SecurityContext: &kapi.SecurityContext{
										Capabilities: &kapi.Capabilities{
											Add: []kapi.Capability{"foo"},
										},
									},
								},
							},
							RestartPolicy:      kapi.RestartPolicyAlways,
							SecurityContext:    &kapi.PodSecurityContext{},
							DNSPolicy:          kapi.DNSClusterFirst,
							ServiceAccountName: "default",
						},
					},
					User: "foo",
				},
			},
			sccs: []*kapi.SecurityContextConstraints{
				admissionttesting.UserScc("bar"),
				admissionttesting.UserScc("foo"),
			},
			// no errorMessage
		},
	}
	namespace := admissionttesting.CreateNamespaceForTest()
	serviceAccount := admissionttesting.CreateSAForTest()
	for testName, testcase := range testcases {
		cache := &oscache.IndexerToSecurityContextConstraintsLister{
			Indexer: cache.NewIndexer(cache.MetaNamespaceKeyFunc,
				cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}),
		}
		for _, scc := range testcase.sccs {
			if err := cache.Add(scc); err != nil {
				t.Fatalf("error adding sccs to store: %v", err)
			}
		}
		csf := clientsetfake.NewSimpleClientset(namespace, serviceAccount)
		storage := REST{oscc.NewDefaultSCCMatcher(cache), csf}
		ctx := kapi.WithNamespace(kapi.NewContext(), kapi.NamespaceAll)
		_, err := storage.Create(ctx, testcase.request)
		switch {
		case err == nil && len(testcase.errorMessage) == 0:
			continue
		case err == nil && len(testcase.errorMessage) > 0:
			t.Errorf("%s - Expected error %q. No error found", testName, testcase.errorMessage)
			continue
		case err.Error() != testcase.errorMessage:
			t.Errorf("%s - Expected error %q. But got %q", testName, testcase.errorMessage, err.Error())
		}
	}
//.........这里部分代码省略.........

//.........这里部分代码省略.........
				{
					ObjectMeta: kapi.ObjectMeta{
						Name:      "yours-sa",
						Namespace: "default",
					},
				},
				{
					ObjectMeta: kapi.ObjectMeta{
						Name:      "our-sa",
						Namespace: "default",
					},
				},
			},
			errorMessage: "",
		},
		"bad SAs in PSPR": {
			request: &securityapi.PodSecurityPolicyReview{
				Spec: securityapi.PodSecurityPolicyReviewSpec{
					Template: kapi.PodTemplateSpec{
						Spec: kapi.PodSpec{
							Containers: []kapi.Container{
								{
									Name:            "ctr",
									Image:           "image",
									ImagePullPolicy: "IfNotPresent",
								},
							},
							RestartPolicy:      kapi.RestartPolicyAlways,
							SecurityContext:    &kapi.PodSecurityContext{},
							DNSPolicy:          kapi.DNSClusterFirst,
							ServiceAccountName: "default",
						},
					},
					ServiceAccountNames: []string{"bad-sa"},
				},
			},
			sccs: []*kapi.SecurityContextConstraints{
				{
					ObjectMeta: kapi.ObjectMeta{
						SelfLink: "/api/version/securitycontextconstraints/myscc",
						Name:     "myscc",
					},
					RunAsUser: kapi.RunAsUserStrategyOptions{
						Type: kapi.RunAsUserStrategyMustRunAsRange,
					},
					SELinuxContext: kapi.SELinuxContextStrategyOptions{
						Type: kapi.SELinuxStrategyMustRunAs,
					},
					FSGroup: kapi.FSGroupStrategyOptions{
						Type: kapi.FSGroupStrategyMustRunAs,
					},
					SupplementalGroups: kapi.SupplementalGroupsStrategyOptions{
						Type: kapi.SupplementalGroupsStrategyMustRunAs,
					},
					Groups: []string{"system:serviceaccounts"},
				},
			},
			serviceAccounts: []*kapi.ServiceAccount{
				{
					ObjectMeta: kapi.ObjectMeta{
						Name:      "my-sa",
						Namespace: "default",
					},
				},
			},
			errorMessage: `unable to retrieve ServiceAccount bad-sa: ServiceAccount "bad-sa" not found`,
		},
	}

	for testName, testcase := range testcases {
		cache := &oscache.IndexerToSecurityContextConstraintsLister{
			Indexer: cache.NewIndexer(cache.MetaNamespaceKeyFunc,
				cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}),
		}
		for _, scc := range testcase.sccs {
			if err := cache.Add(scc); err != nil {
				t.Fatalf("error adding sccs to store: %v", err)
			}
		}
		objects := []runtime.Object{}
		namespace := admissionttesting.CreateNamespaceForTest()
		objects = append(objects, namespace)
		for i := range testcase.serviceAccounts {
			objects = append(objects, testcase.serviceAccounts[i])
		}
		csf := clientsetfake.NewSimpleClientset(objects...)
		storage := REST{oscc.NewDefaultSCCMatcher(cache), csf}
		ctx := kapi.WithNamespace(kapi.NewContext(), namespace.Name)
		_, err := storage.Create(ctx, testcase.request)
		switch {
		case err == nil && len(testcase.errorMessage) == 0:
			continue
		case err == nil && len(testcase.errorMessage) > 0:
			t.Errorf("%s - Expected error %q. No error found", testName, testcase.errorMessage)
			continue
		case err.Error() != testcase.errorMessage:
			t.Errorf("%s - Expected error %q. But got %#v", testName, testcase.errorMessage, err)
		}
	}
}

//.........这里部分代码省略.........
					Groups: []string{"system:serviceaccounts"},
				},
			},
			allowedSAs: []string{"default"},
		},
		"failure creating provider": {
			request: &securityapi.PodSecurityPolicyReview{
				Spec: securityapi.PodSecurityPolicyReviewSpec{
					Template: kapi.PodTemplateSpec{
						Spec: kapi.PodSpec{
							Containers: []kapi.Container{
								{
									Name:            "ctr",
									Image:           "image",
									ImagePullPolicy: "IfNotPresent",
									SecurityContext: &kapi.SecurityContext{
										Capabilities: &kapi.Capabilities{
											Add: []kapi.Capability{"foo"},
										},
									},
								},
							},
							RestartPolicy:      kapi.RestartPolicyAlways,
							SecurityContext:    &kapi.PodSecurityContext{},
							DNSPolicy:          kapi.DNSClusterFirst,
							ServiceAccountName: "default",
						},
					},
				},
			},
			sccs: []*kapi.SecurityContextConstraints{
				{
					ObjectMeta: kapi.ObjectMeta{
						SelfLink: "/api/version/securitycontextconstraints/restrictive",
						Name:     "restrictive",
					},
					RunAsUser: kapi.RunAsUserStrategyOptions{
						Type: kapi.RunAsUserStrategyMustRunAs,
						UID:  &uid,
					},
					SELinuxContext: kapi.SELinuxContextStrategyOptions{
						Type: kapi.SELinuxStrategyMustRunAs,
						SELinuxOptions: &kapi.SELinuxOptions{
							Level: "s9:z0,z1",
						},
					},
					FSGroup: kapi.FSGroupStrategyOptions{
						Type: kapi.FSGroupStrategyMustRunAs,
						Ranges: []kapi.IDRange{
							{Min: 999, Max: 999},
						},
					},
					SupplementalGroups: kapi.SupplementalGroupsStrategyOptions{
						Type: kapi.SupplementalGroupsStrategyMustRunAs,
						Ranges: []kapi.IDRange{
							{Min: 999, Max: 999},
						},
					},
					Groups: []string{"system:serviceaccounts"},
				},
			},
			allowedSAs: nil,
		},
	}

	for testName, testcase := range testcases {
		cache := &oscache.IndexerToSecurityContextConstraintsLister{
			Indexer: cache.NewIndexer(cache.MetaNamespaceKeyFunc,
				cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}),
		}
		for _, scc := range testcase.sccs {
			if err := cache.Add(scc); err != nil {
				t.Fatalf("error adding sccs to store: %v", err)
			}
		}
		namespace := admissionttesting.CreateNamespaceForTest()
		serviceAccount := admissionttesting.CreateSAForTest()
		serviceAccount.Namespace = namespace.Name
		csf := clientsetfake.NewSimpleClientset(namespace, serviceAccount)
		storage := REST{oscc.NewDefaultSCCMatcher(cache), csf}
		ctx := kapi.WithNamespace(kapi.NewContext(), namespace.Name)
		obj, err := storage.Create(ctx, testcase.request)
		if err != nil {
			t.Errorf("%s - Unexpected error: %v", testName, err)
			continue
		}
		pspsr, ok := obj.(*securityapi.PodSecurityPolicyReview)
		if !ok {
			t.Errorf("%s - unable to convert cretated runtime.Object to PodSecurityPolicyReview", testName)
			continue
		}
		var allowedSas []string
		for _, sa := range pspsr.Status.AllowedServiceAccounts {
			allowedSas = append(allowedSas, sa.Name)
		}
		if !reflect.DeepEqual(allowedSas, testcase.allowedSAs) {
			t.Errorf("%s - expected allowed ServiceAccout names %v got %v", testName, testcase.allowedSAs, allowedSas)
		}
	}
}

func TestErrors(t *testing.T) {
	testcases := map[string]struct {
		request        *securityapi.PodSecurityPolicyReview
		sccs           []*kapi.SecurityContextConstraints
		serviceAccount *kapi.ServiceAccount
		errorMessage   string
	}{
		"invalid PSPR": {
			request: &securityapi.PodSecurityPolicyReview{
				Spec: securityapi.PodSecurityPolicyReviewSpec{
					Template: kapi.PodTemplateSpec{
						Spec: kapi.PodSpec{
							Containers:         []kapi.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent"}},
							RestartPolicy:      kapi.RestartPolicyAlways,
							SecurityContext:    &kapi.PodSecurityContext{},
							DNSPolicy:          kapi.DNSClusterFirst,
							ServiceAccountName: "A.B.C.D.E",
						},
					},
				},
			},
			serviceAccount: admissionttesting.CreateSAForTest(),
			errorMessage:   `PodSecurityPolicyReview "" is invalid: spec.template.spec.serviceAccountName: Invalid value: "A.B.C.D.E": must match the regex [a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)* (e.g. 'example.com')`,
		},
		"no SA": {
			request: &securityapi.PodSecurityPolicyReview{
				Spec: securityapi.PodSecurityPolicyReviewSpec{
					Template: kapi.PodTemplateSpec{
						Spec: kapi.PodSpec{
							Containers:         []kapi.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent"}},
							RestartPolicy:      kapi.RestartPolicyAlways,
							SecurityContext:    &kapi.PodSecurityContext{},
							DNSPolicy:          kapi.DNSClusterFirst,
							ServiceAccountName: "default",
						},
					},
				},
			},
			errorMessage: `unable to retrieve ServiceAccount default: ServiceAccount "default" not found`,
		},
	}
	for testName, testcase := range testcases {
		cache := &oscache.IndexerToSecurityContextConstraintsLister{
			Indexer: cache.NewIndexer(cache.MetaNamespaceKeyFunc,
				cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}),
		}
		for _, scc := range testcase.sccs {
			if err := cache.Add(scc); err != nil {
				t.Fatalf("error adding sccs to store: %v", err)
			}
		}
		namespace := admissionttesting.CreateNamespaceForTest()
		var csf clientset.Interface
		if testcase.serviceAccount != nil {
			testcase.serviceAccount.Namespace = namespace.Name
			csf = clientsetfake.NewSimpleClientset(namespace, testcase.serviceAccount)
		} else {
			csf = clientsetfake.NewSimpleClientset(namespace)
		}
		storage := REST{oscc.NewDefaultSCCMatcher(cache), csf}
		ctx := kapi.WithNamespace(kapi.NewContext(), namespace.Name)
		_, err := storage.Create(ctx, testcase.request)
		if err == nil {
			t.Errorf("%s - Expected error", testName)
			continue
		}
		if err.Error() != testcase.errorMessage {
			t.Errorf("%s - Bad error. Expected %q got %q", testName, testcase.errorMessage, err.Error())
		}
	}
}

func TestPodSecurityPolicySelfSubjectReview(t *testing.T) {
	testcases := map[string]struct {
		sccs  []*kapi.SecurityContextConstraints
		check func(p *securityapi.PodSecurityPolicySelfSubjectReview) (bool, string)
	}{
		"user foo": {
			sccs: []*kapi.SecurityContextConstraints{
				admissionttesting.UserScc("bar"),
				admissionttesting.UserScc("foo"),
			},
			check: func(p *securityapi.PodSecurityPolicySelfSubjectReview) (bool, string) {
				fmt.Printf("-> Is %q", p.Status.AllowedBy.Name)
				return p.Status.AllowedBy.Name == "foo", "SCC should be foo"
			},
		},
		"user bar ": {
			sccs: []*kapi.SecurityContextConstraints{
				admissionttesting.UserScc("bar"),
			},
			check: func(p *securityapi.PodSecurityPolicySelfSubjectReview) (bool, string) {
				return p.Status.AllowedBy == nil, "Allowed by should be nil"
			},
		},
	}
	for testName, testcase := range testcases {
		namespace := admissionttesting.CreateNamespaceForTest()
		serviceAccount := admissionttesting.CreateSAForTest()
		reviewRequest := &securityapi.PodSecurityPolicySelfSubjectReview{
			Spec: securityapi.PodSecurityPolicySelfSubjectReviewSpec{
				Template: kapi.PodTemplateSpec{
					Spec: kapi.PodSpec{
						Containers:         []kapi.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent"}},
						RestartPolicy:      kapi.RestartPolicyAlways,
						SecurityContext:    &kapi.PodSecurityContext{},
						DNSPolicy:          kapi.DNSClusterFirst,
						ServiceAccountName: "default",
					},
				},
			},
		}

		cache := &oscache.IndexerToSecurityContextConstraintsLister{
			Indexer: cache.NewIndexer(cache.MetaNamespaceKeyFunc,
				cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}),
		}

		for _, scc := range testcase.sccs {
			if err := cache.Add(scc); err != nil {
				t.Fatalf("error adding sccs to store: %v", err)
			}
		}

		csf := clientsetfake.NewSimpleClientset(namespace, serviceAccount)
		storage := REST{oscc.NewDefaultSCCMatcher(cache), csf}
		ctx := kapi.WithUser(kapi.WithNamespace(kapi.NewContext(), kapi.NamespaceAll), &user.DefaultInfo{Name: "foo", Groups: []string{"bar", "baz"}})
		obj, err := storage.Create(ctx, reviewRequest)
		if err != nil {
			t.Errorf("%s - Unexpected error", testName)
		}
		pspssr, ok := obj.(*securityapi.PodSecurityPolicySelfSubjectReview)
		if !ok {
			t.Errorf("%s - Unable to convert created runtime.Object to PodSecurityPolicySelfSubjectReview", testName)
			continue
		}
		if ok, message := testcase.check(pspssr); !ok {
			t.Errorf("%s - %s", testName, message)
		}
	}
}