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/*
* Copyright (c) 1998, 2024, 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.
*/
/*
* @test
* @bug 4129479 8342086
* @summary Test that available throws an IOException if the stream is
* closed, and that available works correctly with the NUL
* device on Windows
* @run junit Available
*/
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.condition.EnabledOnOs;
import org.junit.jupiter.api.condition.OS;
import static org.junit.jupiter.api.Assertions.*;
public class Available {
@Test
void throwAfterClose() throws IOException {
File file = new File(System.getProperty("test.src", "."),
"Available.java");
FileInputStream fis = new FileInputStream(file);
fis.close();
assertThrows(IOException.class, () -> fis.available());
}
@Test
@EnabledOnOs(OS.WINDOWS)
void nulDevice() throws IOException {
File file = new File("nul");
FileInputStream fis = new FileInputStream(file);
int n = fis.available();
assertEquals(0, n, "available() returned non-zero value");
}
}
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