c41cf55a2c
This makes the Kubelet config key in the ConfigMap an explicit part of the API, so we can stop using magic key names. As part of this change, we are retiring ConfigMapRef for ConfigMap.
558 lines
21 KiB
Go
558 lines
21 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package auth
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import (
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"fmt"
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"net/http"
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"net/http/httptest"
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"testing"
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"time"
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storagev1beta1 "k8s.io/api/storage/v1beta1"
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"k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/apiserver/pkg/authentication/request/bearertoken"
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"k8s.io/apiserver/pkg/authentication/token/tokenfile"
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"k8s.io/apiserver/pkg/authentication/user"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
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versionedinformers "k8s.io/client-go/informers"
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externalclientset "k8s.io/client-go/kubernetes"
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restclient "k8s.io/client-go/rest"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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api "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/apis/policy"
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"k8s.io/kubernetes/pkg/auth/nodeidentifier"
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clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
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informers "k8s.io/kubernetes/pkg/client/informers/informers_generated/internalversion"
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"k8s.io/kubernetes/pkg/features"
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"k8s.io/kubernetes/pkg/kubeapiserver/authorizer"
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"k8s.io/kubernetes/plugin/pkg/admission/noderestriction"
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"k8s.io/kubernetes/test/integration/framework"
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)
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func TestNodeAuthorizer(t *testing.T) {
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// Start the server so we know the address
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h := &framework.MasterHolder{Initialized: make(chan struct{})}
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apiServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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<-h.Initialized
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h.M.GenericAPIServer.Handler.ServeHTTP(w, req)
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}))
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const (
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// Define credentials
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tokenMaster = "master-token"
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tokenNodeUnknown = "unknown-token"
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tokenNode1 = "node1-token"
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tokenNode2 = "node2-token"
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)
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authenticator := bearertoken.New(tokenfile.New(map[string]*user.DefaultInfo{
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tokenMaster: {Name: "admin", Groups: []string{"system:masters"}},
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tokenNodeUnknown: {Name: "unknown", Groups: []string{"system:nodes"}},
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tokenNode1: {Name: "system:node:node1", Groups: []string{"system:nodes"}},
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tokenNode2: {Name: "system:node:node2", Groups: []string{"system:nodes"}},
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}))
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// Build client config, clientset, and informers
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clientConfig := &restclient.Config{Host: apiServer.URL, ContentConfig: restclient.ContentConfig{NegotiatedSerializer: legacyscheme.Codecs}}
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superuserClient, superuserClientExternal := clientsetForToken(tokenMaster, clientConfig)
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informerFactory := informers.NewSharedInformerFactory(superuserClient, time.Minute)
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versionedInformerFactory := versionedinformers.NewSharedInformerFactory(superuserClientExternal, time.Minute)
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// Enabled CSIPersistentVolume feature at startup so volumeattachments get watched
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defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.CSIPersistentVolume, true)()
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// Enable DynamicKubeletConfig feature so that Node.Spec.ConfigSource can be set
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defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.DynamicKubeletConfig, true)()
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// Set up Node+RBAC authorizer
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authorizerConfig := &authorizer.AuthorizationConfig{
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AuthorizationModes: []string{"Node", "RBAC"},
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InformerFactory: informerFactory,
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VersionedInformerFactory: versionedInformerFactory,
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}
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nodeRBACAuthorizer, _, err := authorizerConfig.New()
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if err != nil {
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t.Fatal(err)
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}
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// Set up NodeRestriction admission
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nodeRestrictionAdmission := noderestriction.NewPlugin(nodeidentifier.NewDefaultNodeIdentifier())
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nodeRestrictionAdmission.SetInternalKubeClientSet(superuserClient)
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if err := nodeRestrictionAdmission.ValidateInitialization(); err != nil {
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t.Fatal(err)
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}
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// Start the server
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masterConfig := framework.NewIntegrationTestMasterConfig()
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masterConfig.GenericConfig.Authentication.Authenticator = authenticator
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masterConfig.GenericConfig.Authorization.Authorizer = nodeRBACAuthorizer
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masterConfig.GenericConfig.AdmissionControl = nodeRestrictionAdmission
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_, _, closeFn := framework.RunAMasterUsingServer(masterConfig, apiServer, h)
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defer closeFn()
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// Start the informers
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stopCh := make(chan struct{})
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defer close(stopCh)
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informerFactory.Start(stopCh)
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versionedInformerFactory.Start(stopCh)
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// Wait for a healthy server
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for {
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result := superuserClient.Core().RESTClient().Get().AbsPath("/healthz").Do()
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_, err := result.Raw()
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if err == nil {
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break
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}
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t.Log(err)
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time.Sleep(time.Second)
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}
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// Create objects
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if _, err := superuserClient.Core().Secrets("ns").Create(&api.Secret{ObjectMeta: metav1.ObjectMeta{Name: "mysecret"}}); err != nil {
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t.Fatal(err)
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}
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if _, err := superuserClient.Core().Secrets("ns").Create(&api.Secret{ObjectMeta: metav1.ObjectMeta{Name: "mypvsecret"}}); err != nil {
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t.Fatal(err)
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}
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if _, err := superuserClient.Core().ConfigMaps("ns").Create(&api.ConfigMap{ObjectMeta: metav1.ObjectMeta{Name: "myconfigmap"}}); err != nil {
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t.Fatal(err)
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}
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if _, err := superuserClient.Core().ConfigMaps("ns").Create(&api.ConfigMap{ObjectMeta: metav1.ObjectMeta{Name: "myconfigmapconfigsource"}}); err != nil {
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t.Fatal(err)
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}
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pvName := "mypv"
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if _, err := superuserClientExternal.StorageV1beta1().VolumeAttachments().Create(&storagev1beta1.VolumeAttachment{
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ObjectMeta: metav1.ObjectMeta{Name: "myattachment"},
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Spec: storagev1beta1.VolumeAttachmentSpec{
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Attacher: "foo",
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Source: storagev1beta1.VolumeAttachmentSource{PersistentVolumeName: &pvName},
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NodeName: "node2",
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},
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}); err != nil {
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t.Fatal(err)
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}
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if _, err := superuserClient.Core().PersistentVolumeClaims("ns").Create(&api.PersistentVolumeClaim{
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ObjectMeta: metav1.ObjectMeta{Name: "mypvc"},
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Spec: api.PersistentVolumeClaimSpec{
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AccessModes: []api.PersistentVolumeAccessMode{api.ReadOnlyMany},
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Resources: api.ResourceRequirements{Requests: api.ResourceList{api.ResourceStorage: resource.MustParse("1")}},
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},
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}); err != nil {
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t.Fatal(err)
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}
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if _, err := superuserClient.Core().PersistentVolumes().Create(&api.PersistentVolume{
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ObjectMeta: metav1.ObjectMeta{Name: "mypv"},
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Spec: api.PersistentVolumeSpec{
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AccessModes: []api.PersistentVolumeAccessMode{api.ReadOnlyMany},
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Capacity: api.ResourceList{api.ResourceStorage: resource.MustParse("1")},
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ClaimRef: &api.ObjectReference{Namespace: "ns", Name: "mypvc"},
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PersistentVolumeSource: api.PersistentVolumeSource{AzureFile: &api.AzureFilePersistentVolumeSource{ShareName: "default", SecretName: "mypvsecret"}},
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},
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}); err != nil {
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t.Fatal(err)
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}
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getSecret := func(client clientset.Interface) func() error {
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return func() error {
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_, err := client.Core().Secrets("ns").Get("mysecret", metav1.GetOptions{})
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return err
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}
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}
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getPVSecret := func(client clientset.Interface) func() error {
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return func() error {
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_, err := client.Core().Secrets("ns").Get("mypvsecret", metav1.GetOptions{})
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return err
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}
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}
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getConfigMap := func(client clientset.Interface) func() error {
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return func() error {
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_, err := client.Core().ConfigMaps("ns").Get("myconfigmap", metav1.GetOptions{})
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return err
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}
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}
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getConfigMapConfigSource := func(client clientset.Interface) func() error {
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return func() error {
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_, err := client.Core().ConfigMaps("ns").Get("myconfigmapconfigsource", metav1.GetOptions{})
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return err
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}
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}
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getPVC := func(client clientset.Interface) func() error {
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return func() error {
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_, err := client.Core().PersistentVolumeClaims("ns").Get("mypvc", metav1.GetOptions{})
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return err
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}
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}
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getPV := func(client clientset.Interface) func() error {
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return func() error {
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_, err := client.Core().PersistentVolumes().Get("mypv", metav1.GetOptions{})
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return err
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}
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}
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getVolumeAttachment := func(client externalclientset.Interface) func() error {
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return func() error {
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_, err := client.StorageV1beta1().VolumeAttachments().Get("myattachment", metav1.GetOptions{})
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return err
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}
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}
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createNode2NormalPod := func(client clientset.Interface) func() error {
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return func() error {
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_, err := client.Core().Pods("ns").Create(&api.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "node2normalpod"},
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Spec: api.PodSpec{
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NodeName: "node2",
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Containers: []api.Container{{Name: "image", Image: "busybox"}},
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Volumes: []api.Volume{
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{Name: "secret", VolumeSource: api.VolumeSource{Secret: &api.SecretVolumeSource{SecretName: "mysecret"}}},
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{Name: "cm", VolumeSource: api.VolumeSource{ConfigMap: &api.ConfigMapVolumeSource{LocalObjectReference: api.LocalObjectReference{Name: "myconfigmap"}}}},
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{Name: "pvc", VolumeSource: api.VolumeSource{PersistentVolumeClaim: &api.PersistentVolumeClaimVolumeSource{ClaimName: "mypvc"}}},
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},
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},
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})
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return err
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}
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}
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updateNode2NormalPodStatus := func(client clientset.Interface) func() error {
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return func() error {
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startTime := metav1.NewTime(time.Now())
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_, err := client.Core().Pods("ns").UpdateStatus(&api.Pod{
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ObjectMeta: metav1.ObjectMeta{Name: "node2normalpod"},
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Status: api.PodStatus{StartTime: &startTime},
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})
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return err
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}
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}
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deleteNode2NormalPod := func(client clientset.Interface) func() error {
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return func() error {
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zero := int64(0)
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return client.Core().Pods("ns").Delete("node2normalpod", &metav1.DeleteOptions{GracePeriodSeconds: &zero})
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}
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}
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createNode2MirrorPod := func(client clientset.Interface) func() error {
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return func() error {
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_, err := client.Core().Pods("ns").Create(&api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "node2mirrorpod",
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Annotations: map[string]string{api.MirrorPodAnnotationKey: "true"},
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},
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Spec: api.PodSpec{
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NodeName: "node2",
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Containers: []api.Container{{Name: "image", Image: "busybox"}},
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},
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})
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return err
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}
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}
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deleteNode2MirrorPod := func(client clientset.Interface) func() error {
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return func() error {
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zero := int64(0)
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return client.Core().Pods("ns").Delete("node2mirrorpod", &metav1.DeleteOptions{GracePeriodSeconds: &zero})
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}
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}
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createNode2 := func(client clientset.Interface) func() error {
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return func() error {
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_, err := client.Core().Nodes().Create(&api.Node{ObjectMeta: metav1.ObjectMeta{Name: "node2"}})
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return err
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}
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}
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setNode2ConfigSource := func(client clientset.Interface) func() error {
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return func() error {
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node2, err := client.Core().Nodes().Get("node2", metav1.GetOptions{})
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if err != nil {
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return err
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}
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node2.Spec.ConfigSource = &api.NodeConfigSource{
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ConfigMap: &api.ConfigMapNodeConfigSource{
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Namespace: "ns",
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Name: "myconfigmapconfigsource",
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// validation just requires UID to be non-empty and it isn't necessary for GET,
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// so we just use a bogus one for the test
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UID: "uid",
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KubeletConfigKey: "kubelet",
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},
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}
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_, err = client.Core().Nodes().Update(node2)
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return err
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}
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}
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unsetNode2ConfigSource := func(client clientset.Interface) func() error {
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return func() error {
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node2, err := client.Core().Nodes().Get("node2", metav1.GetOptions{})
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if err != nil {
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return err
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}
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node2.Spec.ConfigSource = nil
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_, err = client.Core().Nodes().Update(node2)
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return err
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}
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}
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updateNode2Status := func(client clientset.Interface) func() error {
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return func() error {
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_, err := client.Core().Nodes().UpdateStatus(&api.Node{
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ObjectMeta: metav1.ObjectMeta{Name: "node2"},
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Status: api.NodeStatus{},
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})
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return err
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}
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}
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deleteNode2 := func(client clientset.Interface) func() error {
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return func() error {
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return client.Core().Nodes().Delete("node2", nil)
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}
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}
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createNode2NormalPodEviction := func(client clientset.Interface) func() error {
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return func() error {
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return client.Policy().Evictions("ns").Evict(&policy.Eviction{
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TypeMeta: metav1.TypeMeta{
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APIVersion: "policy/v1beta1",
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Kind: "Eviction",
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},
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ObjectMeta: metav1.ObjectMeta{
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Name: "node2normalpod",
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Namespace: "ns",
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},
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})
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}
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}
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createNode2MirrorPodEviction := func(client clientset.Interface) func() error {
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return func() error {
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return client.Policy().Evictions("ns").Evict(&policy.Eviction{
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TypeMeta: metav1.TypeMeta{
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APIVersion: "policy/v1beta1",
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Kind: "Eviction",
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},
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ObjectMeta: metav1.ObjectMeta{
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Name: "node2mirrorpod",
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Namespace: "ns",
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},
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})
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}
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}
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capacity := 50
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updatePVCCapacity := func(client clientset.Interface) func() error {
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return func() error {
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capacity++
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statusString := fmt.Sprintf("{\"status\": {\"capacity\": {\"storage\": \"%dG\"}}}", capacity)
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patchBytes := []byte(statusString)
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_, err := client.Core().PersistentVolumeClaims("ns").Patch("mypvc", types.StrategicMergePatchType, patchBytes, "status")
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return err
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}
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}
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updatePVCPhase := func(client clientset.Interface) func() error {
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return func() error {
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patchBytes := []byte(`{"status":{"phase": "Bound"}}`)
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_, err := client.Core().PersistentVolumeClaims("ns").Patch("mypvc", types.StrategicMergePatchType, patchBytes, "status")
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return err
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}
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}
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nodeanonClient, _ := clientsetForToken(tokenNodeUnknown, clientConfig)
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node1Client, node1ClientExternal := clientsetForToken(tokenNode1, clientConfig)
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node2Client, node2ClientExternal := clientsetForToken(tokenNode2, clientConfig)
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// all node requests from node1 and unknown node fail
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expectForbidden(t, getSecret(nodeanonClient))
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expectForbidden(t, getPVSecret(nodeanonClient))
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expectForbidden(t, getConfigMap(nodeanonClient))
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expectForbidden(t, getPVC(nodeanonClient))
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expectForbidden(t, getPV(nodeanonClient))
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expectForbidden(t, createNode2NormalPod(nodeanonClient))
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expectForbidden(t, createNode2MirrorPod(nodeanonClient))
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expectForbidden(t, deleteNode2NormalPod(nodeanonClient))
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expectForbidden(t, deleteNode2MirrorPod(nodeanonClient))
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expectForbidden(t, createNode2MirrorPodEviction(nodeanonClient))
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expectForbidden(t, createNode2(nodeanonClient))
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expectForbidden(t, updateNode2Status(nodeanonClient))
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expectForbidden(t, deleteNode2(nodeanonClient))
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expectForbidden(t, getSecret(node1Client))
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expectForbidden(t, getPVSecret(node1Client))
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expectForbidden(t, getConfigMap(node1Client))
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expectForbidden(t, getPVC(node1Client))
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expectForbidden(t, getPV(node1Client))
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expectForbidden(t, createNode2NormalPod(nodeanonClient))
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expectForbidden(t, createNode2MirrorPod(node1Client))
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expectNotFound(t, deleteNode2MirrorPod(node1Client))
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expectNotFound(t, createNode2MirrorPodEviction(node1Client))
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expectForbidden(t, createNode2(node1Client))
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expectForbidden(t, updateNode2Status(node1Client))
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expectForbidden(t, deleteNode2(node1Client))
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// related object requests from node2 fail
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expectForbidden(t, getSecret(node2Client))
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expectForbidden(t, getPVSecret(node2Client))
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expectForbidden(t, getConfigMap(node2Client))
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expectForbidden(t, getPVC(node2Client))
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expectForbidden(t, getPV(node2Client))
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expectForbidden(t, createNode2NormalPod(nodeanonClient))
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// mirror pod and self node lifecycle is allowed
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expectAllowed(t, createNode2MirrorPod(node2Client))
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expectAllowed(t, deleteNode2MirrorPod(node2Client))
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expectAllowed(t, createNode2MirrorPod(node2Client))
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expectAllowed(t, createNode2MirrorPodEviction(node2Client))
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expectAllowed(t, createNode2(node2Client))
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expectAllowed(t, updateNode2Status(node2Client))
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// cleanup node
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expectAllowed(t, deleteNode2(superuserClient))
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// create a pod as an admin to add object references
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expectAllowed(t, createNode2NormalPod(superuserClient))
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// unidentifiable node and node1 are still forbidden
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expectForbidden(t, getSecret(nodeanonClient))
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expectForbidden(t, getPVSecret(nodeanonClient))
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expectForbidden(t, getConfigMap(nodeanonClient))
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expectForbidden(t, getPVC(nodeanonClient))
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expectForbidden(t, getPV(nodeanonClient))
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expectForbidden(t, createNode2NormalPod(nodeanonClient))
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expectForbidden(t, updateNode2NormalPodStatus(nodeanonClient))
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expectForbidden(t, deleteNode2NormalPod(nodeanonClient))
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expectForbidden(t, createNode2NormalPodEviction(nodeanonClient))
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expectForbidden(t, createNode2MirrorPod(nodeanonClient))
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expectForbidden(t, deleteNode2MirrorPod(nodeanonClient))
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expectForbidden(t, createNode2MirrorPodEviction(nodeanonClient))
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|
expectForbidden(t, getSecret(node1Client))
|
|
expectForbidden(t, getPVSecret(node1Client))
|
|
expectForbidden(t, getConfigMap(node1Client))
|
|
expectForbidden(t, getPVC(node1Client))
|
|
expectForbidden(t, getPV(node1Client))
|
|
expectForbidden(t, createNode2NormalPod(node1Client))
|
|
expectForbidden(t, updateNode2NormalPodStatus(node1Client))
|
|
expectForbidden(t, deleteNode2NormalPod(node1Client))
|
|
expectForbidden(t, createNode2NormalPodEviction(node1Client))
|
|
expectForbidden(t, createNode2MirrorPod(node1Client))
|
|
expectNotFound(t, deleteNode2MirrorPod(node1Client))
|
|
expectNotFound(t, createNode2MirrorPodEviction(node1Client))
|
|
|
|
// node2 can get referenced objects now
|
|
expectAllowed(t, getSecret(node2Client))
|
|
expectAllowed(t, getPVSecret(node2Client))
|
|
expectAllowed(t, getConfigMap(node2Client))
|
|
expectAllowed(t, getPVC(node2Client))
|
|
expectAllowed(t, getPV(node2Client))
|
|
|
|
expectForbidden(t, createNode2NormalPod(node2Client))
|
|
expectAllowed(t, updateNode2NormalPodStatus(node2Client))
|
|
expectAllowed(t, deleteNode2NormalPod(node2Client))
|
|
expectAllowed(t, createNode2MirrorPod(node2Client))
|
|
expectAllowed(t, deleteNode2MirrorPod(node2Client))
|
|
|
|
// recreate as an admin to test eviction
|
|
expectAllowed(t, createNode2NormalPod(superuserClient))
|
|
expectAllowed(t, createNode2MirrorPod(superuserClient))
|
|
expectAllowed(t, createNode2NormalPodEviction(node2Client))
|
|
expectAllowed(t, createNode2MirrorPodEviction(node2Client))
|
|
|
|
// re-create a pod as an admin to add object references
|
|
expectAllowed(t, createNode2NormalPod(superuserClient))
|
|
|
|
// ExpandPersistentVolumes feature disabled
|
|
defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandPersistentVolumes, false)()
|
|
expectForbidden(t, updatePVCCapacity(node1Client))
|
|
expectForbidden(t, updatePVCCapacity(node2Client))
|
|
|
|
// ExpandPersistentVolumes feature enabled
|
|
defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandPersistentVolumes, true)()
|
|
expectForbidden(t, updatePVCCapacity(node1Client))
|
|
expectAllowed(t, updatePVCCapacity(node2Client))
|
|
expectForbidden(t, updatePVCPhase(node2Client))
|
|
|
|
// Disabled CSIPersistentVolume feature
|
|
defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.CSIPersistentVolume, false)()
|
|
expectForbidden(t, getVolumeAttachment(node1ClientExternal))
|
|
expectForbidden(t, getVolumeAttachment(node2ClientExternal))
|
|
// Enabled CSIPersistentVolume feature
|
|
defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.CSIPersistentVolume, true)()
|
|
expectForbidden(t, getVolumeAttachment(node1ClientExternal))
|
|
expectAllowed(t, getVolumeAttachment(node2ClientExternal))
|
|
|
|
// create node2 again
|
|
expectAllowed(t, createNode2(node2Client))
|
|
// node2 can not set its own config source
|
|
expectForbidden(t, setNode2ConfigSource(node2Client))
|
|
// node2 can not access the configmap config source yet
|
|
expectForbidden(t, getConfigMapConfigSource(node2Client))
|
|
// superuser can access the configmap config source
|
|
expectAllowed(t, getConfigMapConfigSource(superuserClient))
|
|
// superuser can set node2's config source
|
|
expectAllowed(t, setNode2ConfigSource(superuserClient))
|
|
// node2 can now get the configmap assigned as its config source
|
|
expectAllowed(t, getConfigMapConfigSource(node2Client))
|
|
// superuser can unset node2's config source
|
|
expectAllowed(t, unsetNode2ConfigSource(superuserClient))
|
|
// node2 can no longer get the configmap after it is unassigned as its config source
|
|
expectForbidden(t, getConfigMapConfigSource(node2Client))
|
|
// node should not be able to delete itself
|
|
expectForbidden(t, deleteNode2(node2Client))
|
|
// clean up node2
|
|
expectAllowed(t, deleteNode2(superuserClient))
|
|
|
|
//TODO(mikedanese): integration test node restriction of TokenRequest
|
|
}
|
|
|
|
// expect executes a function a set number of times until it either returns the
|
|
// expected error or executes too many times. It returns if the retries timed
|
|
// out and the last error returned by the method.
|
|
func expect(t *testing.T, f func() error, wantErr func(error) bool) (timeout bool, lastErr error) {
|
|
t.Helper()
|
|
err := wait.PollImmediate(time.Second, 30*time.Second, func() (bool, error) {
|
|
t.Helper()
|
|
lastErr = f()
|
|
if wantErr(lastErr) {
|
|
return true, nil
|
|
}
|
|
t.Logf("unexpected response, will retry: %v", lastErr)
|
|
return false, nil
|
|
})
|
|
return err == nil, lastErr
|
|
}
|
|
|
|
func expectForbidden(t *testing.T, f func() error) {
|
|
t.Helper()
|
|
if ok, err := expect(t, f, errors.IsForbidden); !ok {
|
|
t.Errorf("Expected forbidden error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func expectNotFound(t *testing.T, f func() error) {
|
|
t.Helper()
|
|
if ok, err := expect(t, f, errors.IsNotFound); !ok {
|
|
t.Errorf("Expected notfound error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func expectAllowed(t *testing.T, f func() error) {
|
|
t.Helper()
|
|
if ok, err := expect(t, f, func(e error) bool { return e == nil }); !ok {
|
|
t.Errorf("Expected no error, got %v", err)
|
|
}
|
|
}
|