author | bpb |
Wed, 05 Dec 2018 15:58:46 -0800 | |
changeset 52860 | 8dd8965df7f6 |
parent 48696 | 917868f73209 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2018, 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 java.io.ByteArrayOutputStream; |
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import java.io.EOFException; |
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import java.io.InputStream; |
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import java.io.IOException; |
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import org.testng.annotations.AfterGroups; |
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import org.testng.annotations.BeforeGroups; |
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import org.testng.annotations.Test; |
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import static org.testng.Assert.*; |
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/* |
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* @test |
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* @bug 4358774 6516099 8139206 |
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* @run testng NullInputStream |
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* @summary Check for expected behavior of InputStream.nullInputStream(). |
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*/ |
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public class NullInputStream { |
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private static InputStream openStream; |
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private static InputStream closedStream; |
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@BeforeGroups(groups="open") |
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public static void openStream() { |
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openStream = InputStream.nullInputStream(); |
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} |
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@BeforeGroups(groups="closed") |
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public static void openAndCloseStream() { |
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closedStream = InputStream.nullInputStream(); |
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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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@AfterGroups(groups="open") |
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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(groups = "open") |
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public static void testOpen() { |
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assertNotNull(openStream, "InputStream.nullInputStream() returned null"); |
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} |
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@Test(groups = "open") |
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public static void testAvailable() { |
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try { |
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assertEquals(0, openStream.available(), "available() != 0"); |
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} catch (IOException ioe) { |
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fail("Unexpected IOException"); |
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} |
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} |
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@Test(groups = "open") |
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public static void testRead() { |
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try { |
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assertEquals(-1, openStream.read(), "read() != -1"); |
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} catch (IOException ioe) { |
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fail("Unexpected IOException"); |
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} |
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} |
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@Test(groups = "open") |
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public static void testReadBII() { |
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try { |
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assertEquals(-1, openStream.read(new byte[1], 0, 1), |
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"read(byte[],int,int) != -1"); |
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} catch (IOException ioe) { |
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fail("Unexpected IOException"); |
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} |
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} |
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@Test(groups = "open") |
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public static void testReadAllBytes() { |
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try { |
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assertEquals(0, openStream.readAllBytes().length, |
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"readAllBytes().length != 0"); |
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} catch (IOException ioe) { |
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fail("Unexpected IOException"); |
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} |
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} |
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@Test(groups = "open") |
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public static void testReadNBytes() { |
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try { |
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assertEquals(0, openStream.readNBytes(new byte[1], 0, 1), |
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"readNBytes(byte[],int,int) != 0"); |
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} catch (IOException ioe) { |
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fail("Unexpected IOException"); |
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} |
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} |
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@Test(groups = "open") |
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public static void testReadNBytesWithLength() { |
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try { |
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assertEquals(0, openStream.readNBytes(-1).length, |
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"readNBytes(-1) != 0"); |
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fail("Expected IllegalArgumentException not thrown"); |
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} catch (IllegalArgumentException iae) { |
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} catch (IOException ioe) { |
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fail("Unexpected IOException"); |
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} |
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try { |
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assertEquals(0, openStream.readNBytes(0).length, |
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"readNBytes(0, false) != 0"); |
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assertEquals(0, openStream.readNBytes(1).length, |
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"readNBytes(1, false) != 0"); |
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} catch (IOException ioe) { |
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fail("Unexpected IOException"); |
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} |
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} |
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@Test(groups = "open") |
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public static void testSkip() { |
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try { |
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assertEquals(0, openStream.skip(1), "skip() != 0"); |
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} catch (IOException ioe) { |
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fail("Unexpected IOException"); |
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} |
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} |
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@Test(groups = "open") |
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public static void testSkipNBytes() { |
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try { |
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openStream.skipNBytes(-1); |
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openStream.skipNBytes(0); |
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} catch (IOException ioe) { |
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fail("Unexpected IOException"); |
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} |
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} |
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@Test(groups = "open", expectedExceptions = EOFException.class) |
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public static void testSkipNBytesEOF() throws IOException { |
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openStream.skipNBytes(1); |
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} |
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@Test(groups = "open") |
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public static void testTransferTo() { |
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try { |
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assertEquals(0, openStream.transferTo(new ByteArrayOutputStream(7)), |
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"transferTo() != 0"); |
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} catch (IOException ioe) { |
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fail("Unexpected IOException"); |
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} |
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} |
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@Test(groups = "closed") |
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public static void testAvailableClosed() { |
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try { |
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closedStream.available(); |
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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(groups = "closed") |
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public static void testReadClosed() { |
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try { |
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closedStream.read(); |
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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(groups = "closed") |
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public static void testReadBIIClosed() { |
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try { |
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closedStream.read(new byte[1], 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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@Test(groups = "closed") |
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public static void testReadAllBytesClosed() { |
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try { |
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closedStream.readAllBytes(); |
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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(groups = "closed") |
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public static void testReadNBytesClosed() { |
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try { |
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closedStream.readNBytes(new byte[1], 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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@Test(groups = "closed") |
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public static void testReadNBytesWithLengthClosed() { |
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try { |
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closedStream.readNBytes(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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@Test(groups = "closed") |
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public static void testSkipClosed() { |
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try { |
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closedStream.skip(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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@Test(groups = "closed") |
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public static void testSkipNBytesClosed() { |
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try { |
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closedStream.skipNBytes(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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@Test(groups = "closed") |
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public static void testTransferToClosed() { |
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try { |
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closedStream.transferTo(new ByteArrayOutputStream(7)); |
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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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} |