106 lines
3.0 KiB
Java
106 lines
3.0 KiB
Java
/*
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* Copyright (c) 2018, 2021, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import org.testng.annotations.AfterClass;
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import org.testng.annotations.BeforeClass;
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import org.testng.annotations.Test;
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import java.io.IOException;
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import java.io.OutputStream;
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import static org.testng.Assert.assertNotNull;
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import static org.testng.Assert.fail;
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/*
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* @test
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* @bug 4358774
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* @run testng NullOutputStream
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* @summary Check for expected behavior of OutputStream.nullOutputStream().
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*/
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public class NullOutputStream {
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private static OutputStream openStream;
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private static OutputStream closedStream;
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@BeforeClass
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public static void setup() {
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openStream = OutputStream.nullOutputStream();
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closedStream = OutputStream.nullOutputStream();
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try {
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closedStream.close();
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} catch (IOException e) {
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fail("Unexpected IOException");
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}
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}
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@AfterClass
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public static void closeStream() {
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try {
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openStream.close();
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} catch (IOException e) {
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fail("Unexpected IOException");
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}
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}
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@Test
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public static void testOpen() {
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assertNotNull(openStream,
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"OutputStream.nullOutputStream() returned null");
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}
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@Test
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public static void testWrite() {
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try {
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openStream.write(62832);
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} catch (IOException e) {
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fail("Unexpected IOException");
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}
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}
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@Test
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public static void testWriteBII() {
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try {
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openStream.write(new byte[] {(byte)6}, 0, 1);
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} catch (Exception e) {
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fail("Unexpected IOException");
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}
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}
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@Test
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public static void testWriteClosed() {
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try {
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closedStream.write(62832);
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fail("Expected IOException not thrown");
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} catch (IOException e) {
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}
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}
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@Test
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public static void testWriteBIIClosed() {
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try {
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closedStream.write(new byte[] {(byte)6}, 0, 1);
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fail("Expected IOException not thrown");
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} catch (IOException e) {
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}
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}
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}
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