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/*
* 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.IOException;
import java.io.Writer;
import org.testng.annotations.AfterGroups;
import org.testng.annotations.BeforeGroups;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
/*
* @test
* @bug 8196298
* @run testng NullWriter
* @summary Check for expected behavior of Writer.nullWriter().
*/
public class NullWriter {
private static Writer openWriter;
private static Writer closedWriter;
@BeforeGroups(groups = "open")
public static void openStream() {
openWriter = Writer.nullWriter();
}
@BeforeGroups(groups = "closed")
public static void openAndCloseStream() throws IOException {
closedWriter = Writer.nullWriter();
closedWriter.close();
}
@AfterGroups(groups = "open")
public static void closeStream() throws IOException {
openWriter.close();
}
@Test(groups = "open")
public static void testOpen() {
assertNotNull(openWriter, "Writer.nullWriter() returned null");
}
@Test(groups = "open")
public static void testAppendChar() throws IOException {
assertSame(openWriter, openWriter.append('x'));
}
@Test(groups = "open")
public static void testAppendCharSequence() throws IOException {
CharSequence cs = "abc";
assertSame(openWriter, openWriter.append(cs));
}
@Test(groups = "open")
public static void testAppendCharSequenceNull() throws IOException {
assertSame(openWriter, openWriter.append(null));
}
@Test(groups = "open")
public static void testAppendCharSequenceII() throws IOException {
CharSequence cs = "abc";
assertSame(openWriter, openWriter.append(cs, 0, 1));
}
@Test(groups = "open")
public static void testAppendCharSequenceIINull() throws IOException {
assertSame(openWriter, openWriter.append(null, 2, 1));
}
@Test(groups = "open")
public static void testFlush() throws IOException {
openWriter.flush();
}
@Test(groups = "open")
public static void testWrite() throws IOException {
openWriter.write(62832);
}
@Test(groups = "open")
public static void testWriteString() throws IOException {
openWriter.write("");
}
@Test(groups = "open")
public static void testWriteStringII() throws IOException {
openWriter.write("", 0, 0);
}
@Test(groups = "open")
public static void testWriteBII() throws IOException, Exception {
openWriter.write(new char[]{(char) 6}, 0, 1);
}
@Test(groups = "closed", expectedExceptions = IOException.class)
public static void testAppendCharClosed() throws IOException {
closedWriter.append('x');
}
@Test(groups = "closed", expectedExceptions = IOException.class)
public static void testAppendCharSequenceClosed() throws IOException {
CharSequence cs = "abc";
closedWriter.append(cs);
}
@Test(groups = "closed", expectedExceptions = IOException.class)
public static void testAppendCharSequenceNullClosed() throws IOException {
closedWriter.append(null);
}
@Test(groups = "closed", expectedExceptions = IOException.class)
public static void testAppendCharSequenceIIClosed() throws IOException {
CharSequence cs = "abc";
closedWriter.append(cs, 0, 1);
}
@Test(groups = "closed", expectedExceptions = IOException.class)
public static void testAppendCharSequenceIINullClosed() throws IOException {
closedWriter.append(null, 2, 1);
}
@Test(groups = "closed", expectedExceptions = IOException.class)
public static void testFlushClosed() throws IOException {
closedWriter.flush();
}
@Test(groups = "closed", expectedExceptions = IOException.class)
public static void testWriteClosed() throws IOException {
closedWriter.write(62832);
}
@Test(groups = "closed", expectedExceptions = IOException.class)
public static void testWriteStringClosed() throws IOException {
closedWriter.write("");
}
@Test(groups = "closed", expectedExceptions = IOException.class)
public static void testWriteStringIIClosed() throws IOException {
closedWriter.write("", 0, 0);
}
@Test(groups = "closed", expectedExceptions = IOException.class)
public static void testWriteBIIClosed() throws IOException {
closedWriter.write(new char[]{(char) 6}, 0, 1);
}
}
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