| /* |
| * Copyright (c) 2018, 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. |
| */ |
| |
| import java.io.Reader; |
| import java.io.IOException; |
| import java.io.StringWriter; |
| import java.nio.CharBuffer; |
| import java.nio.ReadOnlyBufferException; |
| |
| import org.testng.annotations.AfterGroups; |
| import org.testng.annotations.BeforeGroups; |
| import org.testng.annotations.Test; |
| |
| import static org.testng.Assert.*; |
| |
| /* |
| * @test |
| * @bug 8196298 8204930 |
| * @run testng NullReader |
| * @summary Check for expected behavior of Reader.nullReader(). |
| */ |
| public class NullReader { |
| private static Reader openReader; |
| private static Reader closedReader; |
| |
| @BeforeGroups(groups = "open") |
| public static void openStream() { |
| openReader = Reader.nullReader(); |
| } |
| |
| @BeforeGroups(groups = "closed") |
| public static void openAndCloseStream() throws IOException { |
| closedReader = Reader.nullReader(); |
| closedReader.close(); |
| } |
| |
| @AfterGroups(groups = "open") |
| public static void closeStream() throws IOException { |
| openReader.close(); |
| } |
| |
| @Test(groups = "open") |
| public static void testOpen() { |
| assertNotNull(openReader, "Reader.nullReader() returned null"); |
| } |
| |
| @Test(groups = "open") |
| public static void testRead() throws IOException { |
| assertEquals(-1, openReader.read(), "read() != -1"); |
| } |
| |
| @Test(groups = "open") |
| public static void testReadBII() throws IOException { |
| assertEquals(-1, openReader.read(new char[1], 0, 1), |
| "read(char[],int,int) != -1"); |
| } |
| |
| @Test(groups = "open") |
| public static void testReadBIILenZero() throws IOException { |
| assertEquals(0, openReader.read(new char[1], 0, 0), |
| "read(char[],int,int) != 0"); |
| } |
| |
| @Test(groups = "open") |
| public static void testReadCharBuffer() throws IOException { |
| CharBuffer charBuffer = CharBuffer.allocate(1); |
| assertEquals(-1, openReader.read(charBuffer), |
| "read(CharBuffer) != -1"); |
| } |
| |
| @Test(groups = "open") |
| public static void testReadCharBufferZeroRemaining() throws IOException { |
| CharBuffer charBuffer = CharBuffer.allocate(0); |
| assertEquals(0, openReader.read(charBuffer), |
| "read(CharBuffer) != 0"); |
| } |
| |
| @Test(groups = "open") |
| public static void testReady() throws IOException { |
| assertFalse(openReader.ready()); |
| } |
| |
| @Test(groups = "open") |
| public static void testSkip() throws IOException { |
| assertEquals(0, openReader.skip(1), "skip() != 0"); |
| } |
| |
| @Test(groups = "open") |
| public static void testTransferTo() throws IOException { |
| assertEquals(0, openReader.transferTo(new StringWriter(7)), |
| "transferTo() != 0"); |
| } |
| |
| @Test(groups = "closed", expectedExceptions = IOException.class) |
| public static void testReadClosed() throws IOException { |
| closedReader.read(); |
| } |
| |
| @Test(groups = "closed", expectedExceptions = IOException.class) |
| public static void testReadBIIClosed() throws IOException { |
| closedReader.read(new char[1], 0, 1); |
| } |
| |
| @Test(groups = "closed", expectedExceptions = IOException.class) |
| public static void testReadCharBufferClosed() throws IOException { |
| CharBuffer charBuffer = CharBuffer.allocate(0); |
| closedReader.read(charBuffer); |
| } |
| |
| @Test(groups = "closed", expectedExceptions = IOException.class) |
| public static void testReadCharBufferZeroRemainingClosed() throws IOException { |
| CharBuffer charBuffer = CharBuffer.allocate(0); |
| closedReader.read(charBuffer); |
| } |
| |
| @Test(groups = "closed", expectedExceptions = IOException.class) |
| public static void testReadyClosed() throws IOException { |
| closedReader.ready(); |
| } |
| |
| @Test(groups = "closed", expectedExceptions = IOException.class) |
| public static void testSkipClosed() throws IOException { |
| closedReader.skip(1); |
| } |
| |
| @Test(groups = "closed", expectedExceptions = IOException.class) |
| public static void testTransferToClosed() throws IOException { |
| closedReader.transferTo(new StringWriter(7)); |
| } |
| } |