68 lines
2.5 KiB
Java
68 lines
2.5 KiB
Java
/*
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* Copyright (c) 1998, 2023, 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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/* @test
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@bug 4071322
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@summary Basic test for File.listRoots method
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*/
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import java.io.File;
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import java.nio.file.FileSystem;
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import java.nio.file.FileSystems;
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import java.nio.file.Path;
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import java.util.Set;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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import java.util.stream.StreamSupport;
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public class ListRoots {
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public static void main(String[] args) throws Exception {
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File[] rs = File.listRoots();
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for (int i = 0; i < rs.length; i++) {
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System.out.println(i + ": " + rs[i]);
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}
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File f = new File(System.getProperty("test.src", "."), "ListRoots.java");
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String cp = f.getCanonicalPath();
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boolean found = Stream.of(rs)
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.map(File::getPath)
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.anyMatch(p -> cp.startsWith(p));
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if (!found) {
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throw new RuntimeException(cp + " does not have a recognized root");
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}
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// the list of roots should match FileSystem::getRootDirectories
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Set<File> roots1 = Stream.of(rs).collect(Collectors.toSet());
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FileSystem fs = FileSystems.getDefault();
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Set<File> roots2 = StreamSupport.stream(fs.getRootDirectories().spliterator(), false)
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.map(Path::toFile)
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.collect(Collectors.toSet());
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if (!roots1.equals(roots2)) {
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System.out.println(roots2);
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throw new RuntimeException("Does not match FileSystem::getRootDirectories");
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}
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}
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}
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