Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/sources/formale Sprachen/Java/Openjdk/test/jdk/java/util/Collections/ (Sun/Oracle ^©) Datei vom 13.11.2022 mit Größe 4 kB

Quelle CheckedQueue.java Sprache: JAVA

/*
* Copyright (c) 2011, 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
* questions.
*/

/*
* @test
* @bug 5020931 8048207
* @summary Unit test for Collections.checkedQueue
* @run testng CheckedQueue
*/

import java.util.Collections;
import java.util.Queue;
import java.util.concurrent.ArrayBlockingQueue;

import org.testng.annotations.Test;
import static org.testng.Assert.fail;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertTrue;
import static org.testng.Assert.assertFalse;

public class CheckedQueue {

    /**
     * This test adds items to a queue.
     */
    @Test
    public void testAdd() {
        int arrayLength = 10;
        Queue<String> abq = Collections.checkedQueue(new ArrayBlockingQueue<>(arrayLength), String.class);

        for (int i = 0; i < arrayLength; i++) {
            abq.add(Integer.toString(i));
        }

        try {
            abq.add("full");
        } catch (IllegalStateException full) {

        }
    }

    /**
     * This test tests the CheckedQueue.add method.  It creates a queue of
     * {@code String}s gets the checked queue, and attempt to add an Integer to
     * the checked queue.
     */
    @Test(expectedExceptions = ClassCastException.class)
    public void testAddFail1() {
        int arrayLength = 10;
        ArrayBlockingQueue<String> abq = new ArrayBlockingQueue(arrayLength + 1);

        for (int i = 0; i < arrayLength; i++) {
            abq.add(Integer.toString(i));
        }

        Queue q = Collections.checkedQueue(abq, String.class);
        q.add(0);
    }

    /**
     * This test tests the CheckedQueue.add method.  It creates a queue of one
     * {@code String}, gets the checked queue, and attempt to add an Integer to
     * the checked queue.
     */
    @Test(expectedExceptions = ClassCastException.class)
    public void testAddFail2() {
        ArrayBlockingQueue<String> abq = new ArrayBlockingQueue(1);
        Queue q = Collections.checkedQueue(abq, String.class);

        q.add(0);
    }

    /**
     * This test tests the Collections.checkedQueue method call for nulls in
     * each and both of the parameters.
     */
    @Test
    public void testArgs() {
        ArrayBlockingQueue<String> abq = new ArrayBlockingQueue(1);
        Queue q;

        try {
            q = Collections.checkedQueue(null, String.class);
            fail( "should throw NullPointerException.");
        } catch(NullPointerException npe) {
            // Do nothing
        }

        try {
            q = Collections.checkedQueue(abq, null);
            fail( "should throw NullPointerException.");
        } catch(Exception e) {
            // Do nothing
        }

        try {
            q = Collections.checkedQueue(null, null);
            fail( "should throw NullPointerException.");
        } catch(Exception e) {
            // Do nothing
        }
    }

    /**
     * This test tests the CheckedQueue.offer method.
     */
    @Test
    public void testOffer() {
        ArrayBlockingQueue<String> abq = new ArrayBlockingQueue(1);
        Queue q = Collections.checkedQueue(abq, String.class);

        try {
            q.offer(null);
            fail("should throw NullPointerException.");
        } catch (NullPointerException npe) {
            // Do nothing
        }

        try {
            q.offer(0);
            fail("should throw ClassCastException.");
        } catch (ClassCastException cce) {
            // Do nothing
        }

        assertTrue(q.offer("0"), "queue should have room");

        // no room at the inn!
        assertFalse(q.offer("1"), "queue should be full");
    }
}

quality89%

¤ Dauer der Verarbeitung: 0.13 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.