k3s/pkg/api/meta/restmapper_test.go

248 lines
8.3 KiB
Go

/*
Copyright 2014 Google Inc. All rights reserved.
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 meta
import (
"testing"
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
)
type fakeCodec struct{}
func (fakeCodec) Encode(runtime.Object) ([]byte, error) {
return []byte{}, nil
}
func (fakeCodec) Decode([]byte) (runtime.Object, error) {
return nil, nil
}
func (fakeCodec) DecodeInto([]byte, runtime.Object) error {
return nil
}
type fakeConvertor struct{}
func (fakeConvertor) ConvertToVersion(in runtime.Object, _ string) (runtime.Object, error) {
return in, nil
}
var validCodec = fakeCodec{}
var validAccessor = resourceAccessor{}
var validConvertor = fakeConvertor{}
func fakeInterfaces(version string) (*VersionInterfaces, bool) {
return &VersionInterfaces{Codec: validCodec, ObjectConvertor: validConvertor, MetadataAccessor: validAccessor}, true
}
func unmatchedVersionInterfaces(version string) (*VersionInterfaces, bool) {
return nil, false
}
func TestRESTMapperVersionAndKindForResource(t *testing.T) {
testCases := []struct {
Resource string
Kind, APIVersion string
MixedCase bool
Err bool
}{
{Resource: "internalobjec", Err: true},
{Resource: "internalObjec", Err: true},
{Resource: "internalobject", Kind: "InternalObject", APIVersion: "test"},
{Resource: "internalobjects", Kind: "InternalObject", APIVersion: "test"},
{Resource: "internalobject", MixedCase: true, Kind: "InternalObject", APIVersion: "test"},
{Resource: "internalobjects", MixedCase: true, Kind: "InternalObject", APIVersion: "test"},
{Resource: "internalObject", MixedCase: true, Kind: "InternalObject", APIVersion: "test"},
{Resource: "internalObjects", MixedCase: true, Kind: "InternalObject", APIVersion: "test"},
}
for i, testCase := range testCases {
mapper := NewDefaultRESTMapper([]string{"test"}, fakeInterfaces)
scheme := runtime.NewScheme()
scheme.AddKnownTypes("test", &InternalObject{})
mapper.Add(scheme, testCase.MixedCase, "test")
v, k, err := mapper.VersionAndKindForResource(testCase.Resource)
hasErr := err != nil
if hasErr != testCase.Err {
t.Errorf("%d: unexpected error behavior %t: %v", i, testCase.Err, err)
continue
}
if v != testCase.APIVersion || k != testCase.Kind {
t.Errorf("%d: unexpected version and kind: %s %s", i, v, k)
}
}
}
func TestKindToResource(t *testing.T) {
testCases := []struct {
Kind string
MixedCase bool
Plural, Singular string
}{
{Kind: "Pod", MixedCase: true, Plural: "pods", Singular: "pod"},
{Kind: "Pod", MixedCase: true, Plural: "pods", Singular: "pod"},
{Kind: "Pod", MixedCase: false, Plural: "pods", Singular: "pod"},
{Kind: "ReplicationController", MixedCase: true, Plural: "replicationControllers", Singular: "replicationController"},
{Kind: "ReplicationController", MixedCase: true, Plural: "replicationControllers", Singular: "replicationController"},
// API convention changed with regard to capitalization for v1beta3
{Kind: "ReplicationController", MixedCase: false, Plural: "replicationcontrollers", Singular: "replicationcontroller"},
{Kind: "ImageRepository", MixedCase: true, Plural: "imageRepositories", Singular: "imageRepository"},
{Kind: "lowercase", MixedCase: false, Plural: "lowercases", Singular: "lowercase"},
// Don't add extra s if the original object is already plural
{Kind: "lowercases", MixedCase: false, Plural: "lowercases", Singular: "lowercases"},
}
for i, testCase := range testCases {
plural, singular := kindToResource(testCase.Kind, testCase.MixedCase)
if singular != testCase.Singular || plural != testCase.Plural {
t.Errorf("%d: unexpected plural and signular: %s %s", i, plural, singular)
}
}
}
func TestRESTMapperRESTMapping(t *testing.T) {
testCases := []struct {
Kind string
APIVersions []string
MixedCase bool
DefaultVersions []string
Resource string
Version string
Err bool
}{
{Kind: "Unknown", Err: true},
{Kind: "InternalObject", Err: true},
{DefaultVersions: []string{"test"}, Kind: "Unknown", Err: true},
{DefaultVersions: []string{"test"}, Kind: "InternalObject", APIVersions: []string{"test"}, Resource: "internalobjects"},
{DefaultVersions: []string{"test"}, Kind: "InternalObject", APIVersions: []string{"test"}, Resource: "internalobjects"},
{DefaultVersions: []string{"test"}, Kind: "InternalObject", APIVersions: []string{"test"}, Resource: "internalobjects"},
{DefaultVersions: []string{"test"}, Kind: "InternalObject", APIVersions: []string{}, Resource: "internalobjects", Version: "test"},
{DefaultVersions: []string{"test"}, Kind: "InternalObject", APIVersions: []string{"test"}, Resource: "internalobjects"},
{DefaultVersions: []string{"test"}, Kind: "InternalObject", APIVersions: []string{"test"}, MixedCase: true, Resource: "internalObjects"},
// TODO: add test for a resource that exists in one version but not another
}
for i, testCase := range testCases {
mapper := NewDefaultRESTMapper(testCase.DefaultVersions, fakeInterfaces)
scheme := runtime.NewScheme()
scheme.AddKnownTypes("test", &InternalObject{})
mapper.Add(scheme, testCase.MixedCase, "test")
mapping, err := mapper.RESTMapping(testCase.Kind, testCase.APIVersions...)
hasErr := err != nil
if hasErr != testCase.Err {
t.Errorf("%d: unexpected error behavior %t: %v", i, testCase.Err, err)
}
if hasErr {
continue
}
if mapping.Resource != testCase.Resource {
t.Errorf("%d: unexpected resource: %#v", i, mapping)
}
version := testCase.Version
if version == "" {
version = testCase.APIVersions[0]
}
if mapping.APIVersion != version {
t.Errorf("%d: unexpected version: %#v", i, mapping)
}
if mapping.Codec == nil || mapping.MetadataAccessor == nil || mapping.ObjectConvertor == nil {
t.Errorf("%d: missing codec and accessor: %#v", i, mapping)
}
}
}
func TestRESTMapperRESTMappingSelectsVersion(t *testing.T) {
mapper := NewDefaultRESTMapper([]string{"test1", "test2"}, fakeInterfaces)
scheme := runtime.NewScheme()
scheme.AddKnownTypes("test1", &InternalObject{})
scheme.AddKnownTypeWithName("test2", "OtherObject", &InternalObject{})
scheme.AddKnownTypeWithName("test3", "OtherObject", &InternalObject{})
mapper.Add(scheme, false, "test1", "test2")
// pick default matching object kind based on search order
mapping, err := mapper.RESTMapping("OtherObject")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if mapping.Resource != "otherobjects" || mapping.APIVersion != "test2" {
t.Errorf("unexpected mapping: %#v", mapping)
}
mapping, err = mapper.RESTMapping("InternalObject")
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if mapping.Resource != "internalobjects" || mapping.APIVersion != "test1" {
t.Errorf("unexpected mapping: %#v", mapping)
}
// mismatch of version
mapping, err = mapper.RESTMapping("InternalObject", "test2")
if err == nil {
t.Errorf("unexpected non-error")
}
mapping, err = mapper.RESTMapping("OtherObject", "test1")
if err == nil {
t.Errorf("unexpected non-error")
}
// not in the search versions
mapping, err = mapper.RESTMapping("OtherObject", "test3")
if err == nil {
t.Errorf("unexpected non-error")
}
// explicit search order
mapping, err = mapper.RESTMapping("OtherObject", "test3", "test1")
if err == nil {
t.Errorf("unexpected non-error")
}
mapping, err = mapper.RESTMapping("OtherObject", "test3", "test2")
if err != nil {
t.Fatalf("unexpected non-error")
}
if mapping.Resource != "otherobjects" || mapping.APIVersion != "test2" {
t.Errorf("unexpected mapping: %#v", mapping)
}
}
func TestRESTMapperReportsErrorOnBadVersion(t *testing.T) {
mapper := NewDefaultRESTMapper([]string{"test1", "test2"}, unmatchedVersionInterfaces)
scheme := runtime.NewScheme()
scheme.AddKnownTypes("test1", &InternalObject{})
mapper.Add(scheme, false, "test1")
_, err := mapper.RESTMapping("InternalObject", "test1")
if err == nil {
t.Errorf("unexpected non-error")
}
}