| /* |
| * 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.ByteArrayOutputStream; |
| import java.io.InputStream; |
| import java.io.IOException; |
| import org.testng.annotations.AfterGroups; |
| import org.testng.annotations.BeforeGroups; |
| import org.testng.annotations.Test; |
| import static org.testng.Assert.*; |
| |
| /* |
| * @test |
| * @bug 4358774 8139206 |
| * @run testng NullInputStream |
| * @summary Check for expected behavior of InputStream.nullInputStream(). |
| */ |
| public class NullInputStream { |
| private static InputStream openStream; |
| private static InputStream closedStream; |
| |
| @BeforeGroups(groups="open") |
| public static void openStream() { |
| openStream = InputStream.nullInputStream(); |
| } |
| |
| @BeforeGroups(groups="closed") |
| public static void openAndCloseStream() { |
| closedStream = InputStream.nullInputStream(); |
| try { |
| closedStream.close(); |
| } catch (IOException e) { |
| fail("Unexpected IOException"); |
| } |
| } |
| |
| @AfterGroups(groups="open") |
| public static void closeStream() { |
| try { |
| openStream.close(); |
| } catch (IOException e) { |
| fail("Unexpected IOException"); |
| } |
| } |
| |
| @Test(groups = "open") |
| public static void testOpen() { |
| assertNotNull(openStream, "InputStream.nullInputStream() returned null"); |
| } |
| |
| @Test(groups = "open") |
| public static void testAvailable() { |
| try { |
| assertEquals(0, openStream.available(), "available() != 0"); |
| } catch (IOException ioe) { |
| fail("Unexpected IOException"); |
| } |
| } |
| |
| @Test(groups = "open") |
| public static void testRead() { |
| try { |
| assertEquals(-1, openStream.read(), "read() != -1"); |
| } catch (IOException ioe) { |
| fail("Unexpected IOException"); |
| } |
| } |
| |
| @Test(groups = "open") |
| public static void testReadBII() { |
| try { |
| assertEquals(-1, openStream.read(new byte[1], 0, 1), |
| "read(byte[],int,int) != -1"); |
| } catch (IOException ioe) { |
| fail("Unexpected IOException"); |
| } |
| } |
| |
| @Test(groups = "open") |
| public static void testReadAllBytes() { |
| try { |
| assertEquals(0, openStream.readAllBytes().length, |
| "readAllBytes().length != 0"); |
| } catch (IOException ioe) { |
| fail("Unexpected IOException"); |
| } |
| } |
| |
| @Test(groups = "open") |
| public static void testReadNBytes() { |
| try { |
| assertEquals(0, openStream.readNBytes(new byte[1], 0, 1), |
| "readNBytes(byte[],int,int) != 0"); |
| } catch (IOException ioe) { |
| fail("Unexpected IOException"); |
| } |
| } |
| |
| @Test(groups = "open") |
| public static void testReadNBytesWithLength() { |
| try { |
| assertEquals(0, openStream.readNBytes(-1).length, |
| "readNBytes(-1) != 0"); |
| fail("Expected IllegalArgumentException not thrown"); |
| } catch (IllegalArgumentException iae) { |
| } catch (IOException ioe) { |
| fail("Unexpected IOException"); |
| } |
| try { |
| assertEquals(0, openStream.readNBytes(0).length, |
| "readNBytes(0, false) != 0"); |
| assertEquals(0, openStream.readNBytes(1).length, |
| "readNBytes(1, false) != 0"); |
| } catch (IOException ioe) { |
| fail("Unexpected IOException"); |
| } |
| } |
| |
| @Test(groups = "open") |
| public static void testSkip() { |
| try { |
| assertEquals(0, openStream.skip(1), "skip() != 0"); |
| } catch (IOException ioe) { |
| fail("Unexpected IOException"); |
| } |
| } |
| |
| @Test(groups = "open") |
| public static void testTransferTo() { |
| try { |
| assertEquals(0, openStream.transferTo(new ByteArrayOutputStream(7)), |
| "transferTo() != 0"); |
| } catch (IOException ioe) { |
| fail("Unexpected IOException"); |
| } |
| } |
| |
| @Test(groups = "closed") |
| public static void testAvailableClosed() { |
| try { |
| closedStream.available(); |
| fail("Expected IOException not thrown"); |
| } catch (IOException e) { |
| } |
| } |
| |
| @Test(groups = "closed") |
| public static void testReadClosed() { |
| try { |
| closedStream.read(); |
| fail("Expected IOException not thrown"); |
| } catch (IOException e) { |
| } |
| } |
| |
| @Test(groups = "closed") |
| public static void testReadBIIClosed() { |
| try { |
| closedStream.read(new byte[1], 0, 1); |
| fail("Expected IOException not thrown"); |
| } catch (IOException e) { |
| } |
| } |
| |
| @Test(groups = "closed") |
| public static void testReadAllBytesClosed() { |
| try { |
| closedStream.readAllBytes(); |
| fail("Expected IOException not thrown"); |
| } catch (IOException e) { |
| } |
| } |
| |
| @Test(groups = "closed") |
| public static void testReadNBytesClosed() { |
| try { |
| closedStream.readNBytes(new byte[1], 0, 1); |
| fail("Expected IOException not thrown"); |
| } catch (IOException e) { |
| } |
| } |
| |
| @Test(groups = "closed") |
| public static void testReadNBytesWithLengthClosed() { |
| try { |
| closedStream.readNBytes(1); |
| fail("Expected IOException not thrown"); |
| } catch (IOException e) { |
| } |
| } |
| |
| @Test(groups = "closed") |
| public static void testSkipClosed() { |
| try { |
| closedStream.skip(1); |
| fail("Expected IOException not thrown"); |
| } catch (IOException e) { |
| } |
| } |
| |
| @Test(groups = "closed") |
| public static void testTransferToClosed() { |
| try { |
| closedStream.transferTo(new ByteArrayOutputStream(7)); |
| fail("Expected IOException not thrown"); |
| } catch (IOException e) { |
| } |
| } |
| } |