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// Copyright 2020 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package mock
import (
"sync"
)
// Finalizer represent the function that clean a mock point
type Finalizer func()
type mockPoints struct {
m map[string]any
l sync.Mutex
}
func (p *mockPoints) set(fpname string, value any) {
p.l.Lock()
defer p.l.Unlock()
p.m[fpname] = value
}
func (p *mockPoints) get(fpname string) any {
p.l.Lock()
defer p.l.Unlock()
return p.m[fpname]
}
func (p *mockPoints) clr(fpname string) {
p.l.Lock()
defer p.l.Unlock()
delete(p.m, fpname)
}
var points = mockPoints{m: make(map[string]any)}
// On returns a mock value if one is registered.
func On(fpname string) any {
return points.get(fpname)
}
// With registers a mock value for a given key.
func With(fpname string, value any) Finalizer {
points.set(fpname, value)
return func() {
points.clr(fpname)
}
}
// Reset removes a mock value.
func Reset(fpname string) error {
points.clr(fpname)
return nil
}
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