Java example source code file (MethodReferenceTestSueCase4.java)

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Java - Java tags/keywords

methodreferencetestsuecase4, object, sam2, string, target, target::instancemethod

The MethodReferenceTestSueCase4.java Java example source code

/*
 * Copyright (c) 2012, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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
 * questions.
 */

/**
 * @test
 * @bug 8003639
 * @summary convert lambda testng tests to jtreg and add them
 * @run testng MethodReferenceTestSueCase4
 */

import org.testng.annotations.Test;

import static org.testng.Assert.assertEquals;

/**
 * @author Robert Field
 */

@Test
public class MethodReferenceTestSueCase4 {

    public interface Sam2<T> { public String get(T target, String s); }

    Sam2<Target> var = new Object().equals(new Object()) ? Target::instanceMethod : Target::instanceMethod;

    String m() {
        return var.get(new Target(), "");
    }

    static class Target {
        String instanceMethod(String s) { return "2"; }
    }

    public void testSueCase4() {
        assertEquals(m(), "2");
    }
}