// Tags: JDK1.1
// Uses: MyFilterWriter
// Copyright (C) 2002 Free Software Foundation, Inc.
// Written by Daryl Lee (dolee@sources.redhat.com)
// This file is part of Mauve.
// Mauve is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// Mauve 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 for more details.
// You should have received a copy of the GNU General Public License
// along with Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA. */
package gnu.testlet.java.io.FilterWriter;
import java.io.CharArrayWriter;
import java.io.FilterWriter;
import java.io.IOException;
import gnu.testlet.Testlet;
import gnu.testlet.TestHarness;
public class write implements Testlet
{
public void test (TestHarness harness)
{
CharArrayWriter caw = new CharArrayWriter();
FilterWriter tfw = new MyFilterWriter(caw);
try {
tfw.write('A'); // A
harness.check(true, "write(int)");
char[] ba = {'A', 'B', 'C', 'D'};
tfw.write(ba, 1, 2); // ABC
harness.check(true, "write(buf,off,len)");
tfw.write("CDEF", 1, 3); // ABCDEF
harness.check(caw.toString(), "ABCDEF", "wrote all characters okay");
tfw.flush();
harness.check(true, "flush()");
tfw.close();
harness.check(true, "close()");
}
catch (IOException e) {
harness.debug(e);
harness.fail("IOException unexpected");
}
try {
// The documented JDK 1.4 behaviour is to throw NullPointerException
// if the constructor arg is null.
new MyFilterWriter(null);
harness.check(false, "new MyFilterWriter(null) -> no exception");
}
catch (NullPointerException ex) {
harness.check(true, "new MyFilterWriter(null) -> NullPointerException");
}
}
}