/*

 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

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 */

import java.lang.invoke.MethodHandle;

import java.lang.reflect.InvocationTargetException;

/**

 * Abstract class for lambda forms caching testing.

 *

 * @author kshefov

 */

public abstract class LFCachingTestCase extends LambdaFormTestCase {

    /**

     * Constructor for lambda forms caching test case.

     *

     * @param testMethod A method from {@code j.l.i.MethodHandles} class that

     * returns a {@code j.l.i.MethodHandle} instance.

     */

    protected LFCachingTestCase(TestMethods testMethod) {

        super(testMethod);

    }

    /**

     * Checks that the lambda forms of the two adapter method handles adapter1

     * and adapter2 are the same.

     *

     * @param adapter1 First method handle.

     * @param adapter2 Second method handle.

     */

    public void checkLFCaching(MethodHandle adapter1, MethodHandle adapter2) {

        try {

            if (!adapter1.type().equals(adapter2.type())) {

                throw new Error("TESTBUG: Types of the two method handles are not the same");

            }

            Object lambdaForm0 = LambdaFormTestCase.INTERNAL_FORM.invoke(adapter1);

            Object lambdaForm1 = LambdaFormTestCase.INTERNAL_FORM.invoke(adapter2);

            if (lambdaForm0 == null || lambdaForm1 == null) {

                throw new Error("Unexpected error: One or both lambda forms of the method handles are null");

            }

            if (lambdaForm0 != lambdaForm1) {

            }

        } catch (IllegalAccessException | IllegalArgumentException |

                SecurityException | InvocationTargetException ex) {

            throw new Error("Unexpected exception: ", ex);

        }

    }

}