// Copyright 2014 The Cayley Authors. All rights reserved.
//
// 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 lru

import (
	"fmt"
	"testing"
)

// checks fatal error: concurrent map read and map write

func TestPanicLRUCache(t *testing.T) {
	xch := make(chan int)
	c := New(1024)
	for i := 0; i < 100; i++ {
		go func(i int) {
			key := fmt.Sprintf("Key%d", i)
			c.Put(key, i)
			c.Get(key)
			xch <- i

		}(i)

	}
	for i := 0; i < 100; i++ {
		<-xch
	}

}
