final ClassLoader cl1 = new URLClassLoader(new URL[] { new URL("file:/foo") }, null);
        final ClassLoader cl2 = new URLClassLoader(new URL[] { new URL("file:/bar") }, cl1);
        final ClassLoader cl3 = new URLClassLoader(new URL[] { new URL("file:/baz") }, cl2);

        assertThat(ClassLoaderUtil.isAncestor(cl3, cl2), is(true));
        assertThat(ClassLoaderUtil.isAncestor(cl3, cl1), is(true));

     */
    public void testToExternalForm() throws Exception {
        final URL url = new File("/Program File").toURI().toURL();
        assertEquals("file:" + getRoot() + "Program File", ResourceUtil.toExternalForm(url));
    }

    /**
     * @throws Exception
     */
    public void testGetFileName() throws Exception {
        URL url = new File("/Program File").toURI().toURL();

        return newSchema(SchemaFactoryUtil.newW3cXmlSchemaFactory(), schema);
    }

    /**
     * URLからW3C XML Schemaのための{@link Schema}を生成します。
     *
     * @param schema
     *            W3C XML SchemaのURL。{@literal null}であってはいけません
     * @return {@link Schema}
     */
    public static Schema newW3cXmlSchema(final URL schema) {
        assertArgumentNotNull("schema", schema);

    Reader reader = new StringReader(srcString);

    StringWriter writer = new StringWriter();

    StringBuilder builder = new StringBuilder();

    URL url = ResourceUtil.getResource(getClass().getName().replace('.', '/') + ".txt");

    File inputFile = URLUtil.toFile(url);

    File outputFile = new File(inputFile.getParentFile(), ".out");

    /**
     * @throws Exception
     */
    @Test

import static org.junit.Assert.assertThat;

import java.io.File;
import java.net.URL;

import org.codelibs.core.net.URLUtil;
import org.junit.Test;

/**
 * @author koichik
 *
 */
public class FileUtilTest {

    URL url = ResourceUtil.getResource(getClass().getName().replace('.', '/') + ".txt");

    File inputFile = URLUtil.toFile(url);

    /**
     * @throws Exception
     */
    @Test

        final ClassLoader cl3 = new URLClassLoader(new URL[] { new URL("file:/baz") }, cl2);

        final ClassLoaderIterator it = new ClassLoaderIterator(cl3);
        assertThat(it.hasNext(), is(true));
        assertThat(it.next(), is(sameInstance(cl3)));

        assertThat(it.hasNext(), is(true));
        assertThat(it.next(), is(sameInstance(cl2)));

        assertThat(it.hasNext(), is(true));

     */
    public void testToFile() throws Exception {
        final File file = new File("Program Files/hoge.txt");
        final URL url = file.toURI().toURL();
        assertEquals(file.getAbsoluteFile(), URLUtil.toFile(url));
        assertEquals(file.getAbsoluteFile(), URLUtil.toFile(new URL("file:Program%20Files/hoge.txt")));
    }

import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;

import junit.framework.TestCase;

/**
 * @author koichik
 */
public class ZipFileUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testToJarFilePath() throws Exception {
        final URL url = new URL(null, "zip:/Program Files/foo.zip!/", new URLStreamHandler() {

	<description />
	<url>https://github.com/codelibs/corelib</url>
	<inceptionYear>2012</inceptionYear>
	<licenses>
		<license>
			<name>The Apache Software License, Version 2.0</name>
			<url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
			<distribution>repo</distribution>
		</license>
	</licenses>
	<organization>
		<name>CodeLibs Project</name>
		<url>https://www.codelibs.org/</url>
	</organization>

    }

    /**
     * URLをオープンして{@link InputStream}を返します。
     *
     * @param url
     *            URL。{@literal null}であってはいけません
     * @return URLが表すリソースを読み込むための{@link InputStream}
     */
    public static InputStream openStream(final URL url) {
        assertArgumentNotNull("url", url);

        try {
            final URLConnection connection = url.openConnection();