pkg/testing/resource.go

93 lines
2.6 KiB
Go

/*
Copyright 2017 The Knative 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 testing
import (
"fmt"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/knative/pkg/apis"
"github.com/knative/pkg/apis/duck"
duckv1alpha1 "github.com/knative/pkg/apis/duck/v1alpha1"
)
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
// Resource is a simple resource that's compatible with our webhook
type Resource struct {
metav1.TypeMeta `json:",inline"`
metav1.ObjectMeta `json:"metadata,omitempty"`
Spec ResourceSpec `json:"spec,omitempty"`
}
// Check that Resource may be validated and defaulted.
var _ apis.Validatable = (*Resource)(nil)
var _ apis.Defaultable = (*Resource)(nil)
var _ apis.Immutable = (*Resource)(nil)
// Check that we implement the Generation duck type.
var emptyGen duckv1alpha1.Generation
var _ = duck.VerifyType(&Resource{}, &emptyGen)
type ResourceSpec struct {
Generation int64 `json:"generation,omitempty"`
FieldWithDefault string `json:"fieldWithDefault,omitempty"`
FieldWithValidation string `json:"fieldWithValidation,omitempty"`
FieldThatsImmutable string `json:"fieldThatsImmutable,omitempty"`
}
func (c *Resource) SetDefaults() {
c.Spec.SetDefaults()
}
func (cs *ResourceSpec) SetDefaults() {
if cs.FieldWithDefault == "" {
cs.FieldWithDefault = "I'm a default."
}
}
func (c *Resource) Validate() *apis.FieldError {
return c.Spec.Validate().ViaField("spec")
}
func (cs *ResourceSpec) Validate() *apis.FieldError {
if cs.FieldWithValidation != "magic value" {
return apis.ErrInvalidValue(cs.FieldWithValidation, "fieldWithValidation")
}
return nil
}
func (current *Resource) CheckImmutableFields(og apis.Immutable) *apis.FieldError {
original, ok := og.(*Resource)
if !ok {
return &apis.FieldError{Message: "The provided original was not a Resource"}
}
if original.Spec.FieldThatsImmutable != current.Spec.FieldThatsImmutable {
return &apis.FieldError{
Message: "Immutable field changed",
Paths: []string{"spec.fieldThatsImmutable"},
Details: fmt.Sprintf("got: %v, want: %v", current.Spec.FieldThatsImmutable,
original.Spec.FieldThatsImmutable),
}
}
return nil
}