Ant example source code file (FileUtilsTest.java)
The FileUtilsTest.java source code
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.tools.ant.util;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import junit.framework.TestCase;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.taskdefs.condition.Os;
/**
* Tests for org.apache.tools.ant.util.FileUtils.
*
*/
public class FileUtilsTest extends TestCase {
private static final FileUtils FILE_UTILS = FileUtils.getFileUtils();
private File removeThis;
private String root;
public FileUtilsTest(String name) {
super(name);
}
public void setUp() {
// Windows adds the drive letter in uppercase, unless you run Cygwin
root = new File(File.separator).getAbsolutePath().toUpperCase();
}
public void tearDown() {
if (removeThis != null && removeThis.exists()) {
removeThis.delete();
}
}
/**
* test modification.
* Since Ant1.7, the method being tested no longer uses
* reflection to provide backwards support to Java1.1, so this
* test is not so critical. But it does explore file system
* behaviour and will help catch any regression in Java itself,
* so is worth retaining.
* @see FileUtils#setFileLastModified(java.io.File, long)
* @throws IOException
*/
public void testSetLastModified() throws IOException {
removeThis = new File("dummy");
FileOutputStream fos = new FileOutputStream(removeThis);
fos.write(new byte[0]);
fos.close();
long modTime = removeThis.lastModified();
assertTrue(modTime != 0);
/*
* Sleep for some time to make sure a touched file would get a
* more recent timestamp according to the file system's
* granularity (should be > 2s to account for Windows FAT).
*/
try {
Thread.sleep(5000);
} catch (InterruptedException ie) {
fail(ie.getMessage());
}
FILE_UTILS.setFileLastModified(removeThis, -1);
long secondModTime = removeThis.lastModified();
assertTrue(secondModTime > modTime);
// number of milliseconds in a day
final int millisperday=24 * 3600 * 1000;
// in a previous version, the date of the file was set to 123456
// milliseconds since 01.01.1970
// it did not work on a computer running JDK 1.4.1_02 + Windows 2000
FILE_UTILS.setFileLastModified(removeThis, secondModTime + millisperday);
long thirdModTime = removeThis.lastModified();
/*
* I would love to compare this with 123456, but depending on
* the filesystems granularity it can take an arbitrary value.
*
* Just assert the time has changed.
*/
assertTrue(thirdModTime != secondModTime);
}
public void testResolveFile() {
if (!(Os.isFamily("dos") || Os.isFamily("netware"))) {
/*
* Start with simple absolute file names.
*/
assertEquals(File.separator,
FILE_UTILS.resolveFile(null, "/").getPath());
assertEquals(File.separator,
FILE_UTILS.resolveFile(null, "\\").getPath());
} else {
assertEqualsIgnoreDriveCase(localize(File.separator),
FILE_UTILS.resolveFile(null, "/").getPath());
assertEqualsIgnoreDriveCase(localize(File.separator),
FILE_UTILS.resolveFile(null, "\\").getPath());
/*
* throw in drive letters
*/
String driveSpec = "C:";
assertEquals(driveSpec + "\\",
FILE_UTILS.resolveFile(null, driveSpec + "/").getPath());
assertEquals(driveSpec + "\\",
FILE_UTILS.resolveFile(null, driveSpec + "\\").getPath());
String driveSpecLower = "c:";
assertEquals(driveSpecLower + "\\",
FILE_UTILS.resolveFile(null, driveSpecLower + "/").getPath());
assertEquals(driveSpecLower + "\\",
FILE_UTILS.resolveFile(null, driveSpecLower + "\\").getPath());
/*
* promised to eliminate consecutive slashes after drive letter.
*/
assertEquals(driveSpec + "\\",
FILE_UTILS.resolveFile(null, driveSpec + "/////").getPath());
assertEquals(driveSpec + "\\",
FILE_UTILS.resolveFile(null, driveSpec + "\\\\\\\\\\\\").getPath());
}
if (Os.isFamily("netware")) {
/*
* throw in NetWare volume names
*/
String driveSpec = "SYS:";
assertEquals(driveSpec,
FILE_UTILS.resolveFile(null, driveSpec + "/").getPath());
assertEquals(driveSpec,
FILE_UTILS.resolveFile(null, driveSpec + "\\").getPath());
String driveSpecLower = "sys:";
assertEquals(driveSpec,
FILE_UTILS.resolveFile(null, driveSpecLower + "/").getPath());
assertEquals(driveSpec,
FILE_UTILS.resolveFile(null, driveSpecLower + "\\").getPath());
/*
* promised to eliminate consecutive slashes after drive letter.
*/
assertEquals(driveSpec,
FILE_UTILS.resolveFile(null, driveSpec + "/////").getPath());
assertEquals(driveSpec,
FILE_UTILS.resolveFile(null, driveSpec + "\\\\\\\\\\\\").getPath());
} else if (!(Os.isFamily("dos"))) {
/*
* drive letters must be considered just normal filenames.
*/
String driveSpec = "C:";
String udir = System.getProperty("user.dir");
assertEquals(udir + File.separator + driveSpec,
FILE_UTILS.resolveFile(null, driveSpec + "/").getPath());
assertEquals(udir + File.separator + driveSpec,
FILE_UTILS.resolveFile(null, driveSpec + "\\").getPath());
String driveSpecLower = "c:";
assertEquals(udir + File.separator + driveSpecLower,
FILE_UTILS.resolveFile(null, driveSpecLower + "/").getPath());
assertEquals(udir + File.separator + driveSpecLower,
FILE_UTILS.resolveFile(null, driveSpecLower + "\\").getPath());
}
/*
* Now test some relative file name magic.
*/
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.resolveFile(new File(localize("/1/2/3")), "4").getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.resolveFile(new File(localize("/1/2/3")), "./4").getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.resolveFile(new File(localize("/1/2/3")), ".\\4").getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.resolveFile(new File(localize("/1/2/3")), "./.\\4").getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.resolveFile(new File(localize("/1/2/3")), "../3/4").getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.resolveFile(new File(localize("/1/2/3")), "..\\3\\4").getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.resolveFile(new File(localize("/1/2/3")), "../../5/.././2/./3/6/../4").getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.resolveFile(new File(localize("/1/2/3")), "..\\../5/..\\./2/./3/6\\../4").getPath());
assertEquals("meaningless result but no exception",
new File(localize("/1/../../b")),
FILE_UTILS.resolveFile(new File(localize("/1")), "../../b"));
}
public void testNormalize() {
if (!(Os.isFamily("dos") || Os.isFamily("netware"))) {
/*
* Start with simple absolute file names.
*/
assertEquals(File.separator,
FILE_UTILS.normalize("/").getPath());
assertEquals(File.separator,
FILE_UTILS.normalize("\\").getPath());
} else {
try {
FILE_UTILS.normalize("/").getPath();
fail("normalized \"/\" on dos or netware");
} catch (Exception e) {
}
try {
FILE_UTILS.normalize("\\").getPath();
fail("normalized \"\\\" on dos or netware");
} catch (Exception e) {
}
}
if (Os.isFamily("dos")) {
/*
* throw in drive letters
*/
String driveSpec = "C:";
try {
FILE_UTILS.normalize(driveSpec).getPath();
fail(driveSpec + " is not an absolute path");
} catch (Exception e) {
}
assertEquals(driveSpec + "\\",
FILE_UTILS.normalize(driveSpec + "/").getPath());
assertEquals(driveSpec + "\\",
FILE_UTILS.normalize(driveSpec + "\\").getPath());
String driveSpecLower = "c:";
assertEquals(driveSpecLower + "\\",
FILE_UTILS.normalize(driveSpecLower + "/").getPath());
assertEquals(driveSpecLower + "\\",
FILE_UTILS.normalize(driveSpecLower + "\\").getPath());
/*
* promised to eliminate consecutive slashes after drive letter.
*/
assertEquals(driveSpec + "\\",
FILE_UTILS.normalize(driveSpec + "/////").getPath());
assertEquals(driveSpec + "\\",
FILE_UTILS.normalize(driveSpec + "\\\\\\\\\\\\").getPath());
} else if (Os.isFamily("netware")) {
/*
* throw in NetWare volume names
*/
String driveSpec = "SYS:";
assertEquals(driveSpec,
FILE_UTILS.normalize(driveSpec).getPath());
assertEquals(driveSpec,
FILE_UTILS.normalize(driveSpec + "/").getPath());
assertEquals(driveSpec,
FILE_UTILS.normalize(driveSpec + "\\").getPath());
String driveSpecLower = "sys:";
assertEquals(driveSpec,
FILE_UTILS.normalize(driveSpecLower).getPath());
assertEquals(driveSpec,
FILE_UTILS.normalize(driveSpecLower + "/").getPath());
assertEquals(driveSpec,
FILE_UTILS.normalize(driveSpecLower + "\\").getPath());
assertEquals(driveSpec + "\\junk",
FILE_UTILS.normalize(driveSpecLower + "\\junk").getPath());
/*
* promised to eliminate consecutive slashes after drive letter.
*/
assertEquals(driveSpec,
FILE_UTILS.normalize(driveSpec + "/////").getPath());
assertEquals(driveSpec,
FILE_UTILS.normalize(driveSpec + "\\\\\\\\\\\\").getPath());
} else {
try {
String driveSpec = "C:";
assertEquals(driveSpec,
FILE_UTILS.normalize(driveSpec).getPath());
fail("Expected failure, C: isn't an absolute path on other os's");
} catch (BuildException e) {
// Passed test
}
}
/*
* Now test some relative file name magic.
*/
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.normalize(localize("/1/2/3/4")).getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.normalize(localize("/1/2/3/./4")).getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.normalize(localize("/1/2/3/.\\4")).getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.normalize(localize("/1/2/3/./.\\4")).getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.normalize(localize("/1/2/3/../3/4")).getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.normalize(localize("/1/2/3/..\\3\\4")).getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.normalize(localize("/1/2/3/../../5/.././2/./3/6/../4")).getPath());
assertEquals(localize("/1/2/3/4"),
FILE_UTILS.normalize(localize("/1/2/3/..\\../5/..\\./2/./3/6\\../4")).getPath());
try {
FILE_UTILS.normalize("foo");
fail("foo is not an absolute path");
} catch (BuildException e) {
// Expected exception caught
}
assertEquals("will not go outside FS root (but will not throw an exception either)",
new File(localize("/1/../../b")),
FILE_UTILS.normalize(localize("/1/../../b")));
}
/**
* Test handling of null arguments.
*/
public void testNullArgs() {
try {
FILE_UTILS.normalize(null);
fail("successfully normalized a null-file");
} catch (NullPointerException npe) {
// Expected exception caught
}
File f = FILE_UTILS.resolveFile(null, "a");
assertEquals(f, new File("a").getAbsoluteFile());
}
/**
* Test createTempFile
*/
public void testCreateTempFile() {
File parent = new File((new File("/tmp")).getAbsolutePath());
File tmp1 = FILE_UTILS.createTempFile("pre", ".suf", parent);
assertTrue("new file", !tmp1.exists());
String name = tmp1.getName();
assertTrue("starts with pre", name.startsWith("pre"));
assertTrue("ends with .suf", name.endsWith(".suf"));
assertEquals("is inside parent dir",
parent.getAbsolutePath(),
tmp1.getParent());
File tmp2 = FILE_UTILS.createTempFile("pre", ".suf", parent);
assertTrue("files are different",
!tmp1.getAbsolutePath().equals(tmp2.getAbsolutePath()));
// null parent dir
File tmp3 = FILE_UTILS.createTempFile("pre", ".suf", null);
String tmploc = System.getProperty("java.io.tmpdir");
assertEquals((new File(tmploc, tmp3.getName())).getAbsolutePath(),
tmp3.getAbsolutePath());
}
/**
* Test contentEquals
*/
public void testContentEquals() throws IOException {
assertTrue("Non existing files", FILE_UTILS.contentEquals(new File(System.getProperty("root"), "foo"),
new File(System.getProperty("root"), "bar")));
assertTrue("One exists, the other one doesn\'t",
!FILE_UTILS.contentEquals(new File(System.getProperty("root"), "foo"), new File(System.getProperty("root"), "build.xml")));
assertTrue("Don\'t compare directories",
!FILE_UTILS.contentEquals(new File(System.getProperty("root"), "src"), new File(System.getProperty("root"), "src")));
assertTrue("File equals itself",
FILE_UTILS.contentEquals(new File(System.getProperty("root"), "build.xml"),
new File(System.getProperty("root"), "build.xml")));
assertTrue("Files are different",
!FILE_UTILS.contentEquals(new File(System.getProperty("root"), "build.xml"),
new File(System.getProperty("root"), "docs.xml")));
}
/**
* Test createNewFile
*/
public void testCreateNewFile() throws IOException {
removeThis = new File("dummy");
assertTrue(!removeThis.exists());
FILE_UTILS.createNewFile(removeThis);
assertTrue(removeThis.exists());
}
/**
* Test removeLeadingPath.
*/
public void testRemoveLeadingPath() {
assertEquals("bar", FILE_UTILS.removeLeadingPath(new File("/foo"),
new File("/foo/bar")));
assertEquals("bar", FILE_UTILS.removeLeadingPath(new File("/foo/"),
new File("/foo/bar")));
assertEquals("bar", FILE_UTILS.removeLeadingPath(new File("\\foo"),
new File("\\foo\\bar")));
assertEquals("bar", FILE_UTILS.removeLeadingPath(new File("\\foo\\"),
new File("\\foo\\bar")));
assertEquals("bar", FILE_UTILS.removeLeadingPath(new File("c:/foo"),
new File("c:/foo/bar")));
assertEquals("bar", FILE_UTILS.removeLeadingPath(new File("c:/foo/"),
new File("c:/foo/bar")));
assertEquals("bar", FILE_UTILS.removeLeadingPath(new File("c:\\foo"),
new File("c:\\foo\\bar")));
assertEquals("bar", FILE_UTILS.removeLeadingPath(new File("c:\\foo\\"),
new File("c:\\foo\\bar")));
if (!(Os.isFamily("dos") || Os.isFamily("netware"))) {
assertEquals(FILE_UTILS.normalize("/bar").getAbsolutePath(),
FILE_UTILS.removeLeadingPath(new File("/foo"), new File("/bar")));
assertEquals(FILE_UTILS.normalize("/foobar").getAbsolutePath(),
FILE_UTILS.removeLeadingPath(new File("/foo"), new File("/foobar")));
}
// bugzilla report 19979
assertEquals("", FILE_UTILS.removeLeadingPath(new File("/foo/bar"),
new File("/foo/bar")));
assertEquals("", FILE_UTILS.removeLeadingPath(new File("/foo/bar"),
new File("/foo/bar/")));
assertEquals("", FILE_UTILS.removeLeadingPath(new File("/foo/bar/"),
new File("/foo/bar/")));
assertEquals("", FILE_UTILS.removeLeadingPath(new File("/foo/bar/"),
new File("/foo/bar")));
String expected = "foo/bar".replace('\\', File.separatorChar)
.replace('/', File.separatorChar);
assertEquals(expected, FILE_UTILS.removeLeadingPath(new File("/"),
new File("/foo/bar")));
assertEquals(expected, FILE_UTILS.removeLeadingPath(new File("c:/"),
new File("c:/foo/bar")));
assertEquals(expected, FILE_UTILS.removeLeadingPath(new File("c:\\"),
new File("c:\\foo\\bar")));
}
/**
* test toUri
*/
public void testToURI() {
String dosRoot = null;
if (Os.isFamily("dos") || Os.isFamily("netware")) {
dosRoot = System.getProperty("user.dir")
.substring(0, 3).replace(File.separatorChar, '/');
//preserve case on Cygwin when using 1.4 toURI:
Class uriClazz = null;
try {
uriClazz = Class.forName("java.net.URI");
} catch (ClassNotFoundException e) {
// OK, Java 1.3.
dosRoot = dosRoot.toUpperCase();
}
}
else
{
dosRoot = "";
}
if (Os.isFamily("dos")) {
assertEquals("file:/c:/foo", removeExtraneousAuthority(FILE_UTILS.toURI("c:\\foo")));
}
if (Os.isFamily("netware")) {
assertEquals("file:/SYS:/foo", removeExtraneousAuthority(FILE_UTILS.toURI("sys:\\foo")));
}
if (File.pathSeparatorChar == '/') {
assertEquals("file:/foo", removeExtraneousAuthority(FILE_UTILS.toURI("/foo")));
assertTrue("file: URIs must name absolute paths", FILE_UTILS.toURI("./foo").startsWith("file:/"));
assertTrue(FILE_UTILS.toURI("./foo").endsWith("/foo"));
assertEquals("file:/" + dosRoot + "foo%20bar", removeExtraneousAuthority(FILE_UTILS.toURI("/foo bar")));
assertEquals("file:/" + dosRoot + "foo%23bar", removeExtraneousAuthority(FILE_UTILS.toURI("/foo#bar")));
} else if (File.pathSeparatorChar == '\\') {
assertEquals("file:/" + dosRoot + "foo", removeExtraneousAuthority(FILE_UTILS.toURI("\\foo")));
assertTrue("file: URIs must name absolute paths", FILE_UTILS.toURI(".\\foo").startsWith("file:/"));
assertTrue(FILE_UTILS.toURI(".\\foo").endsWith("/foo"));
assertEquals("file:/" + dosRoot + "foo%20bar", removeExtraneousAuthority(FILE_UTILS.toURI("\\foo bar")));
assertEquals("file:/" + dosRoot + "foo%23bar", removeExtraneousAuthority(FILE_UTILS.toURI("\\foo#bar")));
}
// a test with ant for germans
// the escaped character used for the test is the "a umlaut"
// this is the fix for the bug 37348
assertEquals("file:/" + dosRoot + "%C3%A4nt", removeExtraneousAuthority(FILE_UTILS.toURI("/\u00E4nt")));
}
/**
* Authority field is unnecessary, but harmless, in file: URIs.
* Java 1.4 does not produce it when using File.toURI.
*/
private static String removeExtraneousAuthority(String uri) {
String prefix = "file:///";
if (uri.startsWith(prefix)) {
return "file:/" + uri.substring(prefix.length());
} else {
return uri;
}
}
public void testIsContextRelativePath() {
if (Os.isFamily("dos")) {
assertTrue(FileUtils.isContextRelativePath("/\u00E4nt"));
assertTrue(FileUtils.isContextRelativePath("\\foo"));
}
}
/**
* test fromUri
*/
public void testFromURI() {
String dosRoot = null;
if (Os.isFamily("dos") || Os.isFamily("netware")) {
dosRoot = System.getProperty("user.dir").substring(0, 2);
} else {
dosRoot = "";
}
if (Os.isFamily("netware")) {
assertEqualsIgnoreDriveCase("SYS:\\foo", FILE_UTILS.fromURI("file:///sys:/foo"));
}
if (Os.isFamily("dos")) {
assertEqualsIgnoreDriveCase("C:\\foo", FILE_UTILS.fromURI("file:///c:/foo"));
}
assertEqualsIgnoreDriveCase(dosRoot + File.separator + "foo", FILE_UTILS.fromURI("file:///foo"));
assertEquals("." + File.separator + "foo",
FILE_UTILS.fromURI("file:./foo"));
assertEquals(dosRoot + File.separator + "foo bar", FILE_UTILS.fromURI("file:///foo%20bar"));
assertEquals(dosRoot + File.separator + "foo#bar", FILE_UTILS.fromURI("file:///foo%23bar"));
}
public void testModificationTests() {
//get a time
long firstTime=System.currentTimeMillis();
//add some time. We assume no OS has a granularity this bad
long secondTime=firstTime+60000;
/*
assertTrue("same timestamp is up to date",
fu.isUpToDate(firstTime, firstTime));
*/
//check that older is up to date with a newer dest
assertTrue("older source files are up to date",
FILE_UTILS.isUpToDate(firstTime,secondTime));
//check that older is up to date with a newer dest
assertFalse("newer source files are no up to date",
FILE_UTILS.isUpToDate(secondTime, firstTime));
assertTrue("-1 dest timestamp implies nonexistence",
!FILE_UTILS.isUpToDate(firstTime,-1L));
}
public void testGetDefaultEncoding() {
// This just tests that the function does not blow up
FILE_UTILS.getDefaultEncoding();
}
/**
* adapt file separators to local conventions
*/
private String localize(String path) {
path = root + path.substring(1);
return path.replace('\\', File.separatorChar).replace('/', File.separatorChar);
}
/**
* convenience method
* normalize brings the drive in uppercase
* the drive letter is in lower case under cygwin
* calling this method allows tests where normalize is called to pass under cygwin
*/
private void assertEqualsIgnoreDriveCase(String s1, String s2) {
if ((Os.isFamily("dos") || Os.isFamily("netware"))
&& s1.length() > 0 && s2.length() > 0) {
StringBuffer sb1 = new StringBuffer(s1);
StringBuffer sb2 = new StringBuffer(s2);
sb1.setCharAt(0, Character.toUpperCase(s1.charAt(0)));
sb2.setCharAt(0, Character.toUpperCase(s2.charAt(0)));
assertEquals(sb1.toString(), sb2.toString());
} else {
assertEquals(s1, s2);
}
}
}
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