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func.go
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func.go
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// Copyright 2019 The Kanister 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 testutil
import (
"context"
"time"
"github.com/pkg/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
kanister "github.com/kanisterio/kanister/pkg"
crv1alpha1 "github.com/kanisterio/kanister/pkg/apis/cr/v1alpha1"
"github.com/kanisterio/kanister/pkg/param"
"github.com/kanisterio/kanister/pkg/progress"
)
const (
FailFuncName = "FailFunc"
WaitFuncName = "WaitFunc"
ArgFuncName = "ArgFunc"
OutputFuncName = "OutputFunc"
CancelFuncName = "CancelFunc"
VersionMismatchFuncName = "VerMisFunc"
TestVersion = "v1.0.0"
)
var (
failFuncCh chan error
waitFuncCh chan struct{}
argFuncCh chan map[string]interface{}
outputFuncCh chan map[string]interface{}
cancelFuncStartedCh chan struct{}
cancelFuncCh chan error
)
func failFunc(context.Context, param.TemplateParams, map[string]interface{}) (map[string]interface{}, error) {
err := errors.New("Kanister function failed")
failFuncCh <- err
return nil, err
}
func waitFunc(context.Context, param.TemplateParams, map[string]interface{}) (map[string]interface{}, error) {
<-waitFuncCh
return nil, nil
}
func argsFunc(ctx context.Context, tp param.TemplateParams, args map[string]interface{}) (map[string]interface{}, error) {
argFuncCh <- args
return nil, nil
}
func outputFunc(ctx context.Context, tp param.TemplateParams, args map[string]interface{}) (map[string]interface{}, error) {
outputFuncCh <- args
return args, nil
}
func cancelFunc(ctx context.Context, tp param.TemplateParams, args map[string]interface{}) (map[string]interface{}, error) {
cancelFuncStartedCh <- struct{}{}
<-ctx.Done()
cancelFuncCh <- ctx.Err()
return nil, ctx.Err()
}
func versionMismatchFunc(ctx context.Context, tp param.TemplateParams, args map[string]interface{}) (map[string]interface{}, error) {
return nil, nil
}
func init() {
failFuncCh = make(chan error)
waitFuncCh = make(chan struct{})
argFuncCh = make(chan map[string]interface{})
outputFuncCh = make(chan map[string]interface{})
cancelFuncStartedCh = make(chan struct{})
cancelFuncCh = make(chan error)
registerMockKanisterFunc(FailFuncName, failFunc)
registerMockKanisterFunc(WaitFuncName, waitFunc)
registerMockKanisterFunc(ArgFuncName, argsFunc)
registerMockKanisterFunc(OutputFuncName, outputFunc)
registerMockKanisterFunc(CancelFuncName, cancelFunc)
registerMockKanisterFuncWithVersion(ArgFuncName, TestVersion, argsFunc)
registerMockKanisterFuncWithVersion(VersionMismatchFuncName, TestVersion, versionMismatchFunc)
}
func registerMockKanisterFunc(name string, f func(context.Context, param.TemplateParams, map[string]interface{}) (map[string]interface{}, error)) {
_ = kanister.Register(&mockKanisterFunc{name: name, f: f})
}
func registerMockKanisterFuncWithVersion(name, version string, f func(context.Context, param.TemplateParams, map[string]interface{}) (map[string]interface{}, error)) {
_ = kanister.RegisterVersion(&mockKanisterFunc{name: name, f: f}, version)
}
var _ kanister.Func = (*mockKanisterFunc)(nil)
type mockKanisterFunc struct {
name string
f func(context.Context, param.TemplateParams, map[string]interface{}) (map[string]interface{}, error)
}
func (mf *mockKanisterFunc) Exec(ctx context.Context, tp param.TemplateParams, args map[string]interface{}) (map[string]interface{}, error) {
return mf.f(ctx, tp, args)
}
func (mf *mockKanisterFunc) Name() string {
return mf.name
}
func (mf *mockKanisterFunc) ExecutionProgress() (crv1alpha1.PhaseProgress, error) {
metav1Time := metav1.NewTime(time.Now())
return crv1alpha1.PhaseProgress{
ProgressPercent: progress.StartedPercent,
LastTransitionTime: &metav1Time,
}, nil
}
func FailFuncError() error {
return <-failFuncCh
}
func ReleaseWaitFunc() {
waitFuncCh <- struct{}{}
}
func ArgFuncArgs() map[string]interface{} {
return <-argFuncCh
}
func OutputFuncOut() map[string]interface{} {
return <-outputFuncCh
}
func (mf *mockKanisterFunc) RequiredArgs() []string {
return nil
}
func (mf *mockKanisterFunc) Arguments() []string {
return []string{testBPArg}
}
func CancelFuncStarted() struct{} {
return <-cancelFuncStartedCh
}
func CancelFuncOut() error {
return <-cancelFuncCh
}