423 lines
13 KiB
Java
423 lines
13 KiB
Java
/*
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* Copyright (c) 2008, 2010, 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 4313887 6838333 6867101
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* @summary Unit test for java.nio.file.Path for miscellenous methods not
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* covered by other tests
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* @library ..
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*/
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import java.nio.file.*;
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import static java.nio.file.LinkOption.*;
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import java.nio.file.attribute.*;
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import java.io.*;
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import java.util.*;
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public class Misc {
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static final boolean isWindows =
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System.getProperty("os.name").startsWith("Windows");
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static boolean supportsLinks;
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public static void main(String[] args) throws IOException {
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Path dir = TestUtil.createTemporaryDirectory();
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try {
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supportsLinks = TestUtil.supportsLinks(dir);
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// equals and hashCode methods
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equalsAndHashCode();
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// checkAccess method
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checkAccessTests(dir);
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// getFileAttributeView methods
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getFileAttributeViewTests(dir);
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// toRealPath method
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toRealPathTests(dir);
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// isSameFile method
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isSameFileTests(dir);
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// isHidden method
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isHiddenTests(dir);
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} finally {
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TestUtil.removeAll(dir);
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}
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}
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/**
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* Exercise equals and hashCode methods
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*/
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static void equalsAndHashCode() {
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Path thisFile = Paths.get("this");
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Path thatFile = Paths.get("that");
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assertTrue(thisFile.equals(thisFile));
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assertTrue(!thisFile.equals(thatFile));
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assertTrue(!thisFile.equals(null));
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assertTrue(!thisFile.equals(new Object()));
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Path likeThis = Paths.get("This");
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if (isWindows) {
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// case insensitive
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assertTrue(thisFile.equals(likeThis));
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assertTrue(thisFile.hashCode() == likeThis.hashCode());
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} else {
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// case senstive
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assertTrue(!thisFile.equals(likeThis));
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}
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}
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/**
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* Exercise checkAccess method
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*/
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static void checkAccessTests(Path dir) throws IOException {
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final Path file = dir.resolve("foo").createFile();
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/**
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* Test: This directory should readable and writable
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*/
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dir.checkAccess();
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dir.checkAccess(AccessMode.READ);
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dir.checkAccess(AccessMode.WRITE);
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dir.checkAccess(AccessMode.READ, AccessMode.WRITE);
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/**
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* Test: Check access to all files in all root directories.
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* (A useful test on Windows for special files such as pagefile.sys)
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*/
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for (Path root: FileSystems.getDefault().getRootDirectories()) {
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DirectoryStream<Path> stream;
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try {
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stream = root.newDirectoryStream();
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} catch (IOException x) {
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continue; // skip root directories that aren't accessible
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}
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try {
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for (Path entry: stream) {
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try {
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entry.checkAccess();
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} catch (AccessDeniedException ignore) { }
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}
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} finally {
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stream.close();
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}
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}
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/**
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* Test: File does not exist
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*/
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Path doesNotExist = dir.resolve("thisDoesNotExists");
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try {
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doesNotExist.checkAccess();
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throw new RuntimeException("NoSuchFileException expected");
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} catch (NoSuchFileException x) {
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}
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try {
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doesNotExist.checkAccess(AccessMode.READ);
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throw new RuntimeException("NoSuchFileException expected");
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} catch (NoSuchFileException x) {
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}
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try {
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doesNotExist.checkAccess(AccessMode.WRITE);
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throw new RuntimeException("NoSuchFileException expected");
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} catch (NoSuchFileException x) {
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}
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try {
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doesNotExist.checkAccess(AccessMode.EXECUTE);
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throw new RuntimeException("NoSuchFileException expected");
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} catch (NoSuchFileException x) {
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}
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/**
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* Test: Edit ACL to deny WRITE and EXECUTE
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*/
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AclFileAttributeView view = file
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.getFileAttributeView(AclFileAttributeView.class);
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if (view != null &&
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file.getFileStore().supportsFileAttributeView("acl"))
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{
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UserPrincipal owner = view.getOwner();
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List<AclEntry> acl = view.getAcl();
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// Insert entry to deny WRITE and EXECUTE
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AclEntry entry = AclEntry.newBuilder()
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.setType(AclEntryType.DENY)
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.setPrincipal(owner)
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.setPermissions(AclEntryPermission.WRITE_DATA,
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AclEntryPermission.EXECUTE)
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.build();
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acl.add(0, entry);
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view.setAcl(acl);
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try {
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file.checkAccess(AccessMode.WRITE);
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throw new RuntimeException("AccessDeniedException expected");
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} catch (AccessDeniedException x) {
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}
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try {
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file.checkAccess(AccessMode.EXECUTE);
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throw new RuntimeException("AccessDeniedException expected");
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} catch (AccessDeniedException x) {
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}
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// Restore ACL
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acl.remove(0);
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view.setAcl(acl);
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}
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/**
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* Test: Windows DOS read-only attribute
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*/
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if (isWindows) {
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DosFileAttributeView dview =
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file.getFileAttributeView(DosFileAttributeView.class);
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dview.setReadOnly(true);
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try {
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file.checkAccess(AccessMode.WRITE);
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throw new RuntimeException("AccessDeniedException expected");
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} catch (AccessDeniedException x) {
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}
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dview.setReadOnly(false);
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// Read-only attribute does not make direcory read-only
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dview = dir.getFileAttributeView(DosFileAttributeView.class);
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boolean save = dview.readAttributes().isReadOnly();
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dview.setReadOnly(true);
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dir.checkAccess(AccessMode.WRITE);
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dview.setReadOnly(save);
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}
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/**
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* Test: null
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*/
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try {
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file.checkAccess((AccessMode)null);
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throw new RuntimeException("NullPointerException expected");
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} catch (NullPointerException ignore) { }
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// clean-up
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file.delete();
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}
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/**
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* Exercise getFileAttributeFile methods
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*/
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static void getFileAttributeViewTests(Path dir) {
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assertTrue(dir.getFileAttributeView(BasicFileAttributeView.class)
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instanceof BasicFileAttributeView);
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assertTrue(dir.getFileAttributeView(BasicFileAttributeView.class, NOFOLLOW_LINKS)
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instanceof BasicFileAttributeView);
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assertTrue(dir.getFileAttributeView(BogusFileAttributeView.class) == null);
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try {
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dir.getFileAttributeView((Class<FileAttributeView>)null);
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} catch (NullPointerException ignore) { }
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try {
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dir.getFileAttributeView(BasicFileAttributeView.class, (LinkOption[])null);
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} catch (NullPointerException ignore) { }
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try {
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dir.getFileAttributeView(BasicFileAttributeView.class, (LinkOption)null);
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} catch (NullPointerException ignore) { }
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}
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interface BogusFileAttributeView extends FileAttributeView { }
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/**
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* Exercise toRealPath method
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*/
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static void toRealPathTests(Path dir) throws IOException {
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final Path file = dir.resolve("foo").createFile();
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final Path link = dir.resolve("link");
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/**
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* Test: toRealPath(true) will access same file as toRealPath(false)
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*/
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assertTrue(file.toRealPath(true).isSameFile(file.toRealPath(false)));
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/**
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* Test: toRealPath should fail if file does not exist
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*/
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Path doesNotExist = dir.resolve("DoesNotExist");
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try {
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doesNotExist.toRealPath(true);
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throw new RuntimeException("IOException expected");
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} catch (IOException expected) {
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}
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try {
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doesNotExist.toRealPath(false);
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throw new RuntimeException("IOException expected");
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} catch (IOException expected) {
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}
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/**
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* Test: toRealPath(true) should resolve links
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*/
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if (supportsLinks) {
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link.createSymbolicLink(file.toAbsolutePath());
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assertTrue(link.toRealPath(true).equals(file.toRealPath(true)));
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link.delete();
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}
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/**
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* Test: toRealPath(false) should not resolve links
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*/
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if (supportsLinks) {
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link.createSymbolicLink(file.toAbsolutePath());
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assertTrue(link.toRealPath(false).getName().equals(link.getName()));
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link.delete();
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}
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/**
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* Test: toRealPath(false) with broken link
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*/
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if (supportsLinks) {
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Path broken = dir.resolve("doesNotExist");
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link.createSymbolicLink(broken);
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assertTrue(link.toRealPath(false).getName().equals(link.getName()));
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link.delete();
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}
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/**
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* Test: toRealPath should eliminate "."
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*/
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assertTrue(dir.resolve(".").toRealPath(true).equals(dir.toRealPath(true)));
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assertTrue(dir.resolve(".").toRealPath(false).equals(dir.toRealPath(false)));
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/**
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* Test: toRealPath should eliminate ".." when it doesn't follow a
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* symbolic link
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*/
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Path subdir = dir.resolve("subdir").createDirectory();
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assertTrue(subdir.resolve("..").toRealPath(true).equals(dir.toRealPath(true)));
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assertTrue(subdir.resolve("..").toRealPath(false).equals(dir.toRealPath(false)));
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subdir.delete();
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// clean-up
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file.delete();
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}
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/**
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* Exercise isSameFile method
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*/
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static void isSameFileTests(Path dir) throws IOException {
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Path thisFile = dir.resolve("thisFile");
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Path thatFile = dir.resolve("thatFile");
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/**
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* Test: isSameFile for self and null
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*/
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assertTrue(thisFile.isSameFile(thisFile));
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assertTrue(!thisFile.isSameFile(null));
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/**
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* Test: Neither files exist
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*/
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try {
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thisFile.isSameFile(thatFile);
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throw new RuntimeException("IOException not thrown");
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} catch (IOException x) {
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}
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try {
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thatFile.isSameFile(thisFile);
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throw new RuntimeException("IOException not thrown");
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} catch (IOException x) {
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}
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thisFile.createFile();
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try {
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/**
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* Test: One file exists
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*/
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try {
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thisFile.isSameFile(thatFile);
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throw new RuntimeException("IOException not thrown");
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} catch (IOException x) {
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}
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try {
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thatFile.isSameFile(thisFile);
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throw new RuntimeException("IOException not thrown");
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} catch (IOException x) {
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}
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thatFile.createFile();
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/**
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* Test: Both file exists
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*/
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try {
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assertTrue(!thisFile.isSameFile(thatFile));
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assertTrue(!thatFile.isSameFile(thisFile));
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} finally {
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TestUtil.deleteUnchecked(thatFile);
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}
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/**
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* Test: Symbolic links
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*/
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if (supportsLinks) {
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thatFile.createSymbolicLink(thisFile);
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try {
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assertTrue(thisFile.isSameFile(thatFile));
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assertTrue(thatFile.isSameFile(thisFile));
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} finally {
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TestUtil.deleteUnchecked(thatFile);
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}
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}
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} finally {
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thisFile.delete();
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}
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}
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/**
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* Exercise isHidden method
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*/
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static void isHiddenTests(Path dir) throws IOException {
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assertTrue(!dir.isHidden());
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Path file = dir.resolve(".foo");
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if (isWindows) {
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file.createFile();
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try {
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file.setAttribute("dos:hidden", true);
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assertTrue(file.isHidden());
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} finally {
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file.delete();
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}
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} else {
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assertTrue(file.isHidden());
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}
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}
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static void assertTrue(boolean okay) {
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if (!okay)
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throw new RuntimeException("Assertion Failed");
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}
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}
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