mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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309 lines
9.2 KiB
Go
309 lines
9.2 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors All rights reserved.
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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 cmd
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"reflect"
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"testing"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/latest"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/meta"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/testapi"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/validation"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl"
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cmdutil "github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/cmd/util"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/kubectl/resource"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
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)
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type internalType struct {
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Kind string
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APIVersion string
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Name string
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}
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type externalType struct {
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Kind string `json:"kind"`
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APIVersion string `json:"apiVersion"`
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Name string `json:"name"`
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}
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type ExternalType2 struct {
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Kind string `json:"kind"`
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APIVersion string `json:"apiVersion"`
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Name string `json:"name"`
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}
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func (*internalType) IsAnAPIObject() {}
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func (*externalType) IsAnAPIObject() {}
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func (*ExternalType2) IsAnAPIObject() {}
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func newExternalScheme() (*runtime.Scheme, meta.RESTMapper, runtime.Codec) {
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scheme := runtime.NewScheme()
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scheme.AddKnownTypeWithName("", "Type", &internalType{})
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scheme.AddKnownTypeWithName("unlikelyversion", "Type", &externalType{})
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//This tests that kubectl will not confuse the external scheme with the internal scheme, even when they accidentally have versions of the same name.
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scheme.AddKnownTypeWithName(testapi.Version(), "Type", &ExternalType2{})
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codec := runtime.CodecFor(scheme, "unlikelyversion")
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validVersion := testapi.Version()
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mapper := meta.NewDefaultRESTMapper([]string{"unlikelyversion", validVersion}, func(version string) (*meta.VersionInterfaces, bool) {
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return &meta.VersionInterfaces{
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Codec: runtime.CodecFor(scheme, version),
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ObjectConvertor: scheme,
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MetadataAccessor: meta.NewAccessor(),
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}, (version == validVersion || version == "unlikelyversion")
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})
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for _, version := range []string{"unlikelyversion", validVersion} {
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for kind := range scheme.KnownTypes(version) {
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mixedCase := false
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scope := meta.RESTScopeNamespace
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mapper.Add(scope, kind, version, mixedCase)
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}
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}
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return scheme, mapper, codec
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}
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type testPrinter struct {
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Objects []runtime.Object
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Err error
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}
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func (t *testPrinter) PrintObj(obj runtime.Object, out io.Writer) error {
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t.Objects = append(t.Objects, obj)
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fmt.Fprintf(out, "%#v", obj)
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return t.Err
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}
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type testDescriber struct {
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Name, Namespace string
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Output string
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Err error
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}
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func (t *testDescriber) Describe(namespace, name string) (output string, err error) {
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t.Namespace, t.Name = namespace, name
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return t.Output, t.Err
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}
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type testFactory struct {
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Mapper meta.RESTMapper
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Typer runtime.ObjectTyper
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Client kubectl.RESTClient
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Describer kubectl.Describer
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Printer kubectl.ResourcePrinter
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Validator validation.Schema
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Namespace string
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ClientConfig *client.Config
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Err error
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}
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func NewTestFactory() (*cmdutil.Factory, *testFactory, runtime.Codec) {
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scheme, mapper, codec := newExternalScheme()
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t := &testFactory{
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Validator: validation.NullSchema{},
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Mapper: mapper,
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Typer: scheme,
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}
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return &cmdutil.Factory{
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Object: func() (meta.RESTMapper, runtime.ObjectTyper) {
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return t.Mapper, t.Typer
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},
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RESTClient: func(*meta.RESTMapping) (resource.RESTClient, error) {
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return t.Client, t.Err
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},
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Describer: func(*meta.RESTMapping) (kubectl.Describer, error) {
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return t.Describer, t.Err
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},
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Printer: func(mapping *meta.RESTMapping, noHeaders, withNamespace bool) (kubectl.ResourcePrinter, error) {
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return t.Printer, t.Err
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},
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Validator: func() (validation.Schema, error) {
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return t.Validator, t.Err
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},
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DefaultNamespace: func() (string, error) {
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return t.Namespace, t.Err
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},
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ClientConfig: func() (*client.Config, error) {
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return t.ClientConfig, t.Err
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},
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}, t, codec
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}
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func NewMixedFactory(apiClient resource.RESTClient) (*cmdutil.Factory, *testFactory, runtime.Codec) {
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f, t, c := NewTestFactory()
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f.Object = func() (meta.RESTMapper, runtime.ObjectTyper) {
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return meta.MultiRESTMapper{t.Mapper, latest.RESTMapper}, runtime.MultiObjectTyper{t.Typer, api.Scheme}
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}
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f.RESTClient = func(m *meta.RESTMapping) (resource.RESTClient, error) {
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if m.ObjectConvertor == api.Scheme {
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return apiClient, t.Err
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}
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return t.Client, t.Err
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}
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return f, t, c
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}
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func NewAPIFactory() (*cmdutil.Factory, *testFactory, runtime.Codec) {
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t := &testFactory{
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Validator: validation.NullSchema{},
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}
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generators := map[string]kubectl.Generator{
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"run/v1": kubectl.BasicReplicationController{},
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"service/v1": kubectl.ServiceGenerator{},
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}
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return &cmdutil.Factory{
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Object: func() (meta.RESTMapper, runtime.ObjectTyper) {
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return latest.RESTMapper, api.Scheme
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},
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Client: func() (*client.Client, error) {
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// Swap out the HTTP client out of the client with the fake's version.
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fakeClient := t.Client.(*client.FakeRESTClient)
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c := client.NewOrDie(t.ClientConfig)
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c.Client = fakeClient.Client
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return c, t.Err
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},
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RESTClient: func(*meta.RESTMapping) (resource.RESTClient, error) {
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return t.Client, t.Err
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},
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Describer: func(*meta.RESTMapping) (kubectl.Describer, error) {
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return t.Describer, t.Err
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},
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Printer: func(mapping *meta.RESTMapping, noHeaders, withNamespace bool) (kubectl.ResourcePrinter, error) {
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return t.Printer, t.Err
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},
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Validator: func() (validation.Schema, error) {
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return t.Validator, t.Err
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},
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DefaultNamespace: func() (string, error) {
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return t.Namespace, t.Err
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},
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ClientConfig: func() (*client.Config, error) {
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return t.ClientConfig, t.Err
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},
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Generator: func(name string) (kubectl.Generator, bool) {
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generator, ok := generators[name]
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return generator, ok
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},
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}, t, testapi.Codec()
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}
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func objBody(codec runtime.Codec, obj runtime.Object) io.ReadCloser {
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return ioutil.NopCloser(bytes.NewReader([]byte(runtime.EncodeOrDie(codec, obj))))
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}
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func stringBody(body string) io.ReadCloser {
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return ioutil.NopCloser(bytes.NewReader([]byte(body)))
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}
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// TODO(jlowdermilk): refactor the Factory so we can test client versions properly,
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// with different client/server version skew scenarios.
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// Verify that resource.RESTClients constructed from a factory respect mapping.APIVersion
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//func TestClientVersions(t *testing.T) {
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// f := cmdutil.NewFactory(nil)
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//
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// version := testapi.Version()
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// mapping := &meta.RESTMapping{
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// APIVersion: version,
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// }
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// c, err := f.RESTClient(mapping)
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// if err != nil {
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// t.Errorf("unexpected error: %v", err)
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// }
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// client := c.(*client.RESTClient)
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// if client.APIVersion() != version {
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// t.Errorf("unexpected Client APIVersion: %s %v", client.APIVersion, client)
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// }
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//}
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func ExamplePrintReplicationController() {
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f, tf, codec := NewAPIFactory()
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tf.Printer = kubectl.NewHumanReadablePrinter(false, false)
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tf.Client = &client.FakeRESTClient{
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Codec: codec,
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Client: nil,
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}
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cmd := NewCmdRun(f, os.Stdout)
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ctrl := &api.ReplicationController{
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ObjectMeta: api.ObjectMeta{
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Name: "foo",
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Labels: map[string]string{"foo": "bar"},
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 1,
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Selector: map[string]string{"foo": "bar"},
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Template: &api.PodTemplateSpec{
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ObjectMeta: api.ObjectMeta{
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Labels: map[string]string{"foo": "bar"},
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},
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Spec: api.PodSpec{
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Containers: []api.Container{
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{
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Name: "foo",
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Image: "someimage",
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},
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},
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},
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},
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},
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}
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err := f.PrintObject(cmd, ctrl, os.Stdout)
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if err != nil {
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fmt.Printf("Unexpected error: %v", err)
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}
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// Output:
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// CONTROLLER CONTAINER(S) IMAGE(S) SELECTOR REPLICAS
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// foo foo someimage foo=bar 1
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}
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func TestNormalizationFuncGlobalExistance(t *testing.T) {
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// This test can be safely deleted when we will not support multiple flag formats
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root := NewKubectlCommand(cmdutil.NewFactory(nil), os.Stdin, os.Stdout, os.Stderr)
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if root.Parent() != nil {
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t.Fatal("We expect the root command to be returned")
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}
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if root.GlobalNormalizationFunc() == nil {
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t.Fatal("We expect that root command has a global normalization function")
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}
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if reflect.ValueOf(root.GlobalNormalizationFunc()).Pointer() != reflect.ValueOf(root.Flags().GetNormalizeFunc()).Pointer() {
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t.Fatal("root command seems to have a wrong normalization function")
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}
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sub := root
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for sub.HasSubCommands() {
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sub = sub.Commands()[0]
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}
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// In case of failure of this test check this PR: spf13/cobra#110
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if reflect.ValueOf(sub.Flags().GetNormalizeFunc()).Pointer() != reflect.ValueOf(root.Flags().GetNormalizeFunc()).Pointer() {
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t.Fatal("child and root commands should have the same normalization functions")
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}
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}
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