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matchers.go
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matchers.go
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// Copyright (c) 2020 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 matchers
import (
"errors"
kcache "github.com/gardener/gardener/pkg/client/kubernetes/cache"
"github.com/onsi/gomega/format"
"github.com/onsi/gomega/types"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/apimachinery/pkg/runtime"
)
func init() {
// if CharactersAroundMismatchToInclude is too small, then format.MessageWithDiff will be unable to output our
// mismatch message
// set the variable in init func, otherwise the race detector will complain when matchers are used concurrently in
// multiple goroutines
if format.CharactersAroundMismatchToInclude < 50 {
format.CharactersAroundMismatchToInclude = 50
}
}
// DeepEqual returns a Gomega matcher which checks whether the expected object is deeply equal with the object it is
// being compared against.
func DeepEqual(expected interface{}) types.GomegaMatcher {
return newDeepEqualMatcher(expected)
}
// DeepDerivativeEqual is similar to DeepEqual except that unset fields in actual are
// ignored (not compared). This allows us to focus on the fields that matter to
// the semantic comparison.
func DeepDerivativeEqual(expected interface{}) types.GomegaMatcher {
return newDeepDerivativeMatcher(expected)
}
// BeNotFoundError checks if error is NotFound.
func BeNotFoundError() types.GomegaMatcher {
return &kubernetesErrors{
checkFunc: apierrors.IsNotFound,
message: "NotFound",
}
}
// BeAlreadyExistsError checks if error is AlreadyExists.
func BeAlreadyExistsError() types.GomegaMatcher {
return &kubernetesErrors{
checkFunc: apierrors.IsAlreadyExists,
message: "AlreadyExists",
}
}
// BeForbiddenError checks if error is Forbidden.
func BeForbiddenError() types.GomegaMatcher {
return &kubernetesErrors{
checkFunc: apierrors.IsForbidden,
message: "Forbidden",
}
}
// BeBadRequestError checks if error is BadRequest.
func BeBadRequestError() types.GomegaMatcher {
return &kubernetesErrors{
checkFunc: apierrors.IsBadRequest,
message: "BadRequest",
}
}
// BeNoMatchError checks if error is a NoMatchError.
func BeNoMatchError() types.GomegaMatcher {
return &kubernetesErrors{
checkFunc: meta.IsNoMatchError,
message: "NoMatch",
}
}
// BeMissingKindError checks if error is a MissingKindError.
func BeMissingKindError() types.GomegaMatcher {
return &kubernetesErrors{
checkFunc: runtime.IsMissingKind,
message: "Object 'Kind' is missing",
}
}
// BeInternalServerError checks if error is a InternalServerError.
func BeInternalServerError() types.GomegaMatcher {
return &kubernetesErrors{
checkFunc: apierrors.IsInternalError,
message: "",
}
}
// BeInvalidError checks if error is an InvalidError.
func BeInvalidError() types.GomegaMatcher {
return &kubernetesErrors{
checkFunc: apierrors.IsInvalid,
message: "Invalid",
}
}
// BeCacheError checks if error is a CacheError.
func BeCacheError() types.GomegaMatcher {
return &kubernetesErrors{
checkFunc: func(err error) bool {
cacheErr := &kcache.CacheError{}
return errors.As(err, &cacheErr)
},
message: "",
}
}