jaxb-ri/runtime/impl/src/test/java/org/glassfish/jaxb/runtime/v2/util/CollisionCheckStackTest.java

/*
 * Copyright (c) 1997, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package org.glassfish.jaxb.runtime.v2.util;

import junit.framework.TestCase;

/**
 * @author Kohsuke Kawaguchi
 */
public class CollisionCheckStackTest extends TestCase {
    public void test1() {
        CollisionCheckStack<String> s = new CollisionCheckStack<String>();
        assertFalse(s.push("foo"));
        assertFalse(s.push("bar"));
        s.pop();
        assertFalse(s.push("bar"));
        s.pop();
        assertFalse(s.push("baz"));
        s.pop();
        assertTrue( s.push("foo"));
    }

    /**
     * Tests the reallocation and reset.
     */
    public void test2() {
        CollisionCheckStack<Integer> s = new CollisionCheckStack<Integer>();

        for( int j=0; j<3; j++ ) {
            for( int i=0; i<100; i++ )
                assertFalse(s.push(i));
            assertTrue(s.push(5));
            s.reset();
        }
    }
}