| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/Java/Openjdk/test/jdk/java/util/Random/ (Sun/Oracle ©) Datei vom 13.11.2022 mit Größe 2 kB |
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Quelle Basic.java Sprache: JAVA |
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/*
* Copyright (c) 2008, 2022, 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 4313887 6873621 6979526 7006126 7020517 8264400 * @summary Unit test for java.nio.file.FileStore * @key intermittent * @library .. /test/lib * @build jdk.test.lib.Platform * jdk.test.lib.util.FileUtils * @run main Basic */ import java.nio.file.*; import java.nio.file.attribute.*; import java.io.File; import java.io.IOException; import jdk.test.lib.Platform; import jdk.test.lib.util.FileUtils; public class Basic { static final long G = 1024L * 1024L * 1024L; public static void main(String[] args) throws IOException { Path dir = TestUtil.createTemporaryDirectory(); try { doTests(dir); } finally { TestUtil.removeAll(dir); } } static void assertTrue(boolean okay) { if (!okay) throw new RuntimeException("Assertion failed"); } static void checkWithin1GB(long expected, long actual) { long diff = Math.abs(actual - expected); if (diff > G) { String msg = String.format("|actual %d - expected %d| = %d (%f G)", actual, expected, diff, (float)diff/G); throw new RuntimeException(msg); } } static void doTests(Path dir) throws IOException { /** * Test: Directory should be on FileStore that is writable */ assertTrue(!Files.getFileStore(dir).isReadOnly()); /** * Test: Two files should have the same FileStore */ Path file1 = Files.createFile(dir.resolve("foo")); Path file2 = Files.createFile(dir.resolve("bar")); FileStore store1 = Files.getFileStore(file1); FileStore store2 = Files.getFileStore(file2); assertTrue(store1.equals(store2)); assertTrue(store2.equals(store1)); assertTrue(store1.hashCode() == store2.hashCode()); if (Platform.isWindows()) { /** * Test: FileStore.equals() should not be case sensitive */ FileStore upper = Files.getFileStore(Path.of("C:\\")); FileStore lower = Files.getFileStore(Path.of("c:\\")); assertTrue(lower.equals(upper)); } /** * Test: File and FileStore attributes */ assertTrue(store1.supportsFileAttributeView("basic")); assertTrue(store1.supportsFileAttributeView(BasicFileAttributeView.class)); assertTrue(store1.supportsFileAttributeView("posix") == store1.supportsFileAttributeView(PosixFileAttributeView.class)); assertTrue(store1.supportsFileAttributeView("dos") == store1.supportsFileAttributeView(DosFileAttributeView.class)); assertTrue(store1.supportsFileAttributeView("acl") == store1.supportsFileAttributeView(AclFileAttributeView.class)); assertTrue(store1.supportsFileAttributeView("user") == store1.supportsFileAttributeView(UserDefinedFileAttributeView.class)); /** * Test: Space atributes */ File f = file1.toFile(); long total = f.getTotalSpace(); long free = f.getFreeSpace(); long usable = f.getUsableSpace(); // check values are "close" checkWithin1GB(total, store1.getTotalSpace()); checkWithin1GB(free, store1.getUnallocatedSpace()); checkWithin1GB(usable, store1.getUsableSpace()); // get values by name checkWithin1GB(total, (Long)store1.getAttribute("totalSpace")); checkWithin1GB(free, (Long)store1.getAttribute("unallocatedSpace")); checkWithin1GB(usable, (Long)store1.getAttribute("usableSpace")); /** * Test: Enumerate all FileStores */ if (FileUtils.areMountPointsAccessibleAndUnique()) { FileStore prev = null; for (FileStore store: FileSystems.getDefault().getFileStores()) { System.out.format("%s (name=%s type=%s)\n", store, store.name(), store.type()); // check space attributes are accessible try { store.getTotalSpace(); store.getUnallocatedSpace(); store.getUsableSpace(); } catch (NoSuchFileException nsfe) { // ignore exception as the store could have been // deleted since the iterator was instantiated System.err.format("%s was not found\n", store); } catch (AccessDeniedException ade) { // ignore exception as the lack of ability to access the // store due to lack of file permission or similar does not // reflect whether the space attributes would be accessible // were access to be permitted System.err.format("%s is inaccessible\n", store); } catch (FileSystemException fse) { // On Linux, ignore the FSE if the path is one of the // /run/user/$UID mounts created by pam_systemd(8) as it // might be mounted as a fuse.portal filesystem and // its access attempt might fail with EPERM if (!Platform.isLinux() || store.toString().indexOf("/run/user") == -1) { throw new RuntimeException(fse); } else { System.err.format("%s error: %s\n", store, fse); } } // two distinct FileStores should not be equal assertTrue(!store.equals(prev)); prev = store; } } else { System.err.println ("Skipping FileStore check due to file system access failure"); } } } ¤ Dauer der Verarbeitung: 0.14 Sekunden (vorverarbeitet) ¤*© Formatika GbR, Deutschland |
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2026-03-28