pv_validation_test.go

Documentation: k8s.io/kubernetes/pkg/volume/validation

     1  /*
     2  Copyright 2017 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package validation
    18  
    19  import (
    20  	"testing"
    21  
    22  	"k8s.io/apimachinery/pkg/api/resource"
    23  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    24  	api "k8s.io/kubernetes/pkg/apis/core"
    25  )
    26  
    27  func TestValidatePersistentVolumes(t *testing.T) {
    28  	scenarios := map[string]struct {
    29  		isExpectedFailure bool
    30  		volume            *api.PersistentVolume
    31  	}{
    32  		"volume with valid mount option for nfs": {
    33  			isExpectedFailure: false,
    34  			volume: testVolumeWithMountOption("good-nfs-mount-volume", "", "ro,nfsvers=3", api.PersistentVolumeSpec{
    35  				Capacity: api.ResourceList{
    36  					api.ResourceName(api.ResourceStorage): resource.MustParse("10G"),
    37  				},
    38  				AccessModes: []api.PersistentVolumeAccessMode{api.ReadWriteOnce},
    39  				PersistentVolumeSource: api.PersistentVolumeSource{
    40  					NFS: &api.NFSVolumeSource{Server: "localhost", Path: "/srv", ReadOnly: false},
    41  				},
    42  			}),
    43  		},
    44  		"volume with mount option for host path": {
    45  			isExpectedFailure: true,
    46  			volume: testVolumeWithMountOption("bad-hostpath-mount-volume", "", "ro,nfsvers=3", api.PersistentVolumeSpec{
    47  				Capacity: api.ResourceList{
    48  					api.ResourceName(api.ResourceStorage): resource.MustParse("10G"),
    49  				},
    50  				AccessModes: []api.PersistentVolumeAccessMode{api.ReadWriteOnce},
    51  				PersistentVolumeSource: api.PersistentVolumeSource{
    52  					HostPath: &api.HostPathVolumeSource{Path: "/a/.."},
    53  				},
    54  			}),
    55  		},
    56  	}
    57  
    58  	for name, scenario := range scenarios {
    59  		errs := ValidatePersistentVolume(scenario.volume)
    60  		if len(errs) == 0 && scenario.isExpectedFailure {
    61  			t.Errorf("Unexpected success for scenario: %s", name)
    62  		}
    63  		if len(errs) > 0 && !scenario.isExpectedFailure {
    64  			t.Errorf("Unexpected failure for scenario: %s - %+v", name, errs)
    65  		}
    66  	}
    67  }
    68  
    69  func testVolumeWithMountOption(name string, namespace string, mountOptions string, spec api.PersistentVolumeSpec) *api.PersistentVolume {
    70  	annotations := map[string]string{
    71  		api.MountOptionAnnotation: mountOptions,
    72  	}
    73  	objMeta := metav1.ObjectMeta{
    74  		Name:        name,
    75  		Annotations: annotations,
    76  	}
    77  
    78  	if namespace != "" {
    79  		objMeta.Namespace = namespace
    80  	}
    81  
    82  	return &api.PersistentVolume{
    83  		ObjectMeta: objMeta,
    84  		Spec:       spec,
    85  	}
    86  }
    87  
    88  func TestValidatePathNoBacksteps(t *testing.T) {
    89  	testCases := map[string]struct {
    90  		path        string
    91  		expectedErr bool
    92  	}{
    93  		"valid path": {
    94  			path: "/foo/bar",
    95  		},
    96  		"invalid path": {
    97  			path:        "/foo/bar/..",
    98  			expectedErr: true,
    99  		},
   100  	}
   101  
   102  	for name, tc := range testCases {
   103  		err := ValidatePathNoBacksteps(tc.path)
   104  
   105  		if err == nil && tc.expectedErr {
   106  			t.Fatalf("expected test `%s` to return an error but it didn't", name)
   107  		}
   108  
   109  		if err != nil && !tc.expectedErr {
   110  			t.Fatalf("expected test `%s` to return no error but got `%v`", name, err)
   111  		}
   112  	}
   113  }
   114
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