// GPars - Groovy Parallel Systems
//
// Copyright © 2008-10  The original author or 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 groovyx.gpars.util

import java.util.concurrent.Semaphore

/**
 *
 * @author Vaclav Pech
 * Date: Jan 15, 2010
 */
class EnhancedSemaphoreTest extends GroovyTestCase {
    public void testSemaphore() {
        final Semaphore semaphore = new EnhancedSemaphore(3)
        semaphore.withSemaphore {
            assertFalse semaphore.tryAcquire(3)
            assertTrue semaphore.tryAcquire(2)
            semaphore.release 2
        }
        assertTrue semaphore.tryAcquire(3)
        semaphore.release 3
    }
}
