/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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 for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Created on Feb 1, 2006
*/
package com.bigdata.io;
import java.io.File;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import java.util.Vector;
import junit.framework.TestCase;
/**
* Test suite for {@link NameAndExtensionFilter}.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class TestNameAndExtensionFilter extends TestCase
{
/**
*
*/
public TestNameAndExtensionFilter() {
super();
}
/**
* @param name
*/
public TestNameAndExtensionFilter(final String name) {
super(name);
}
/**
* Verifies that the same files are present in each {@link File}[]. The
* order in which the files are listed does not matter.
*
* @param expected
* @param actual
*/
private void assertSameFiles(final File[] expected, final File[] actual) {
if (expected == null) {
throw new AssertionError("expected is null.");
}
if (actual == null) {
fail("actual is null.");
}
assertEquals("#of files", expected.length, actual.length);
// Insert the expected files into a set.
final Set<String> expectedSet = new HashSet<String>();
for (int i = 0; i < expected.length; i++) {
final File expectedFile = expected[i];
if (expectedFile == null) {
throw new AssertionError("expected file is null at index=" + i);
}
if (!expectedSet.add(expectedFile.toString())) {
throw new AssertionError(
"expected File[] contains duplicate: expected[" + i
+ "]=" + expectedFile);
}
}
/*
* Verify that each actual file occurs in the expectedSet using a
* selection without replacement policy.
*/
for (int i = 0; i < actual.length; i++) {
final File actualFile = actual[i];
if (actualFile == null) {
fail("actual file is null at index=" + i);
}
if (!expectedSet.remove(actual[i].toString())) {
fail("actual file=" + actualFile + " at index=" + i
+ " was not found in expected files.");
}
}
}
/**
* Test verifies that no files are found using a guarenteed unique basename.
*/
public void test_filter_001() throws IOException {
final File basefile = File.createTempFile(getName(), "-test");
try {
final String basename = basefile.toString();
final NameAndExtensionFilter logFilter = new NameAndExtensionFilter(
basename, ".log");
assertSameFiles(new File[] {}, logFilter.getFiles());
} finally {
basefile.delete();
}
}
/**
* Test verifies that N files are found using a guarenteed unique basename.
*/
public void test_filter_002() throws IOException {
final int N = 100;
final Vector<File> v = new Vector<File>(N);
final File logBaseFile = File.createTempFile(getName(), "-test");
// logBaseFile.deleteOnExit();
try {
final String basename = logBaseFile.toString();
// System.err.println( "basename="+basename );
final NameAndExtensionFilter logFilter = new NameAndExtensionFilter(
basename, ".log");
for (int i = 0; i < N; i++) {
final File logFile = new File(basename + "." + i + ".log");
// logFile.deleteOnExit();
logFile.createNewFile();
// System.err.println( "logFile="+logFile );
v.add(logFile);
}
final File[] expectedFiles = (File[]) v.toArray(new File[] {});
assertSameFiles(expectedFiles, logFilter.getFiles());
} finally {
logBaseFile.delete();
for (File f : v) {
f.delete();
}
}
}
}