ceph-csi/vendor/k8s.io/kubernetes/pkg/fieldpath/fieldpath_test.go

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2018-01-09 18:57:14 +00:00
/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package fieldpath
import (
"strings"
"testing"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
func TestExtractFieldPathAsString(t *testing.T) {
cases := []struct {
name string
fieldPath string
obj interface{}
expectedValue string
expectedMessageFragment string
}{
{
name: "not an API object",
fieldPath: "metadata.name",
obj: "",
},
{
name: "ok - namespace",
fieldPath: "metadata.namespace",
obj: &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Namespace: "object-namespace",
},
},
expectedValue: "object-namespace",
},
{
name: "ok - name",
fieldPath: "metadata.name",
obj: &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: "object-name",
},
},
expectedValue: "object-name",
},
{
name: "ok - labels",
fieldPath: "metadata.labels",
obj: &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{"key": "value"},
},
},
expectedValue: "key=\"value\"",
},
{
name: "ok - labels bslash n",
fieldPath: "metadata.labels",
obj: &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Labels: map[string]string{"key": "value\n"},
},
},
expectedValue: "key=\"value\\n\"",
},
{
name: "ok - annotations",
fieldPath: "metadata.annotations",
obj: &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{"builder": "john-doe"},
},
},
expectedValue: "builder=\"john-doe\"",
},
{
name: "ok - annotation",
fieldPath: "metadata.annotations['spec.pod.beta.kubernetes.io/statefulset-index']",
obj: &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{"spec.pod.beta.kubernetes.io/statefulset-index": "1"},
},
},
expectedValue: "1",
},
{
name: "ok - annotation",
fieldPath: "metadata.annotations['Www.k8s.io/test']",
obj: &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{"Www.k8s.io/test": "1"},
},
},
expectedValue: "1",
},
{
name: "invalid expression",
fieldPath: "metadata.whoops",
obj: &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Namespace: "object-namespace",
},
},
expectedMessageFragment: "unsupported fieldPath",
},
{
name: "invalid annotation key",
fieldPath: "metadata.annotations['invalid~key']",
obj: &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{"foo": "bar"},
},
},
expectedMessageFragment: "invalid key subscript in metadata.annotations",
},
{
name: "invalid label key",
fieldPath: "metadata.labels['Www.k8s.io/test']",
obj: &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Annotations: map[string]string{"foo": "bar"},
},
},
expectedMessageFragment: "invalid key subscript in metadata.labels",
},
}
for _, tc := range cases {
actual, err := ExtractFieldPathAsString(tc.obj, tc.fieldPath)
if err != nil {
if tc.expectedMessageFragment != "" {
if !strings.Contains(err.Error(), tc.expectedMessageFragment) {
t.Errorf("%v: unexpected error message: %q, expected to contain %q", tc.name, err, tc.expectedMessageFragment)
}
} else {
t.Errorf("%v: unexpected error: %v", tc.name, err)
}
} else if tc.expectedMessageFragment != "" {
t.Errorf("%v: expected error: %v", tc.name, tc.expectedMessageFragment)
} else if e := tc.expectedValue; e != "" && e != actual {
t.Errorf("%v: unexpected result; got %q, expected %q", tc.name, actual, e)
}
}
}
func TestSplitMaybeSubscriptedPath(t *testing.T) {
cases := []struct {
fieldPath string
expectedPath string
expectedSubscript string
expectedOK bool
}{
{
fieldPath: "metadata.annotations['key']",
expectedPath: "metadata.annotations",
expectedSubscript: "key",
expectedOK: true,
},
{
fieldPath: "metadata.annotations['a[b']c']",
expectedPath: "metadata.annotations",
expectedSubscript: "a[b']c",
expectedOK: true,
},
{
fieldPath: "metadata.labels['['key']",
expectedPath: "metadata.labels",
expectedSubscript: "['key",
expectedOK: true,
},
{
fieldPath: "metadata.labels['key']']",
expectedPath: "metadata.labels",
expectedSubscript: "key']",
expectedOK: true,
},
{
fieldPath: "metadata.labels['']",
expectedPath: "metadata.labels",
expectedSubscript: "",
expectedOK: true,
},
{
fieldPath: "metadata.labels[' ']",
expectedPath: "metadata.labels",
expectedSubscript: " ",
expectedOK: true,
},
{
fieldPath: "metadata.labels[ 'key' ]",
expectedOK: false,
},
{
fieldPath: "metadata.labels[]",
expectedOK: false,
},
{
fieldPath: "metadata.labels[']",
expectedOK: false,
},
{
fieldPath: "metadata.labels['key']foo",
expectedOK: false,
},
{
fieldPath: "['key']",
expectedOK: false,
},
{
fieldPath: "metadata.labels",
expectedOK: false,
},
}
for _, tc := range cases {
path, subscript, ok := SplitMaybeSubscriptedPath(tc.fieldPath)
if !ok {
if tc.expectedOK {
t.Errorf("SplitMaybeSubscriptedPath(%q) expected to return (_, _, true)", tc.fieldPath)
}
continue
}
if path != tc.expectedPath || subscript != tc.expectedSubscript {
t.Errorf("SplitMaybeSubscriptedPath(%q) = (%q, %q, true), expect (%q, %q, true)",
tc.fieldPath, path, subscript, tc.expectedPath, tc.expectedSubscript)
}
}
}