// Copyright 2020 Pilosa Corp.
//
// 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.

// +build !go1.14

package testhook

import (
	"sync"
	"testing"
)

var cleanupFuncs []func()
var cleanupMu sync.Mutex

func init() {
	RegisterPostTestHook(runCleanupFuncs)
}

func runCleanupFuncs() error {
	cleanupMu.Lock()
	defer cleanupMu.Unlock()
	for _, fn := range cleanupFuncs {
		fn()
	}
	return nil
}

// Cleanup in 1.13 logs a message about skipping a cleanup function, but
// allows things to build. Cleanup in 1.14 uses tb.Cleanup to register
// a cleanup function to call when a test completes.
func Cleanup(tb testing.TB, fn func()) {
	cleanupMu.Lock()
	defer cleanupMu.Unlock()
	cleanupFuncs = append(cleanupFuncs, fn)
}
