org.sonar.server.plugins.ClassLoaderUtilsTest.java Source code

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Here is the source code for org.sonar.server.plugins.ClassLoaderUtilsTest.java

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/*
 * Sonar, open source software quality management tool.
 * Copyright (C) 2008-2012 SonarSource
 * mailto:contact AT sonarsource DOT com
 *
 * Sonar is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * Sonar 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with Sonar; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
 */
package org.sonar.server.plugins;

import com.google.common.base.Function;
import com.google.common.base.Predicate;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.lang.StringUtils;
import org.hamcrest.core.Is;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

import javax.annotation.Nullable;
import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Collection;

import static org.junit.Assert.assertThat;
import static org.junit.matchers.JUnitMatchers.hasItems;

public class ClassLoaderUtilsTest {

    private ClassLoader classLoader;

    @Rule
    public TemporaryFolder temp = new TemporaryFolder();

    @Before
    public void prepareClassLoader() {
        //  This JAR file has the three following files :
        //    org/sonar/sqale/app/copyright.txt
        //    org/sonar/sqale/app/README.md
        //    org/sonar/other/other.txt
        URL jarUrl = getClass()
                .getResource("/org/sonar/server/plugins/ClassLoaderUtilsTest/ClassLoaderUtilsTest.jar");
        classLoader = new URLClassLoader(new URL[] { jarUrl }, /* no parent classloader */null);
    }

    @Test
    public void listResources_unknown_root() {
        Collection<String> strings = ClassLoaderUtils.listResources(classLoader, "unknown/directory");
        assertThat(strings.size(), Is.is(0));
    }

    @Test
    public void listResources_all() {
        Collection<String> strings = ClassLoaderUtils.listResources(classLoader, "org/sonar/sqale");
        assertThat(strings, hasItems("org/sonar/sqale/", "org/sonar/sqale/app/",
                "org/sonar/sqale/app/copyright.txt", "org/sonar/sqale/app/README.md"));
        assertThat(strings.size(), Is.is(4));
    }

    @Test
    public void listResources_root_path_starts_with_slash() {
        Collection<String> strings = ClassLoaderUtils.listResources(classLoader, "/org/sonar/sqale");
        assertThat(strings, hasItems("org/sonar/sqale/", "org/sonar/sqale/app/",
                "org/sonar/sqale/app/copyright.txt", "org/sonar/sqale/app/README.md"));
        assertThat(strings.size(), Is.is(4));
    }

    @Test
    public void listResources_use_predicate() {
        Collection<String> strings = ClassLoaderUtils.listResources(classLoader, "org/sonar/sqale",
                new Predicate<String>() {
                    public boolean apply(@Nullable String s) {
                        return StringUtils.endsWith(s, "md");
                    }
                });
        assertThat(strings.size(), Is.is(1));
        assertThat(strings, hasItems("org/sonar/sqale/app/README.md"));
    }

    @Test
    public void listFiles() {
        Collection<String> strings = ClassLoaderUtils.listFiles(classLoader, "org/sonar/sqale");
        assertThat(strings, hasItems("org/sonar/sqale/app/copyright.txt", "org/sonar/sqale/app/README.md"));
        assertThat(strings.size(), Is.is(2));
    }

    @Test
    public void copyRubyRailsApp() {
        File toDir = temp.newFolder("dest");
        ClassLoaderUtils.copyResources(classLoader, "org/sonar/sqale", toDir);

        assertThat(FileUtils.listFiles(toDir, null, true).size(), Is.is(2));
        assertThat(new File(toDir, "org/sonar/sqale/app/copyright.txt").exists(), Is.is(true));
        assertThat(new File(toDir, "org/sonar/sqale/app/README.md").exists(), Is.is(true));
    }

    @Test
    public void copyRubyRailsApp_relocate_files() {
        File toDir = temp.newFolder("dest");
        ClassLoaderUtils.copyResources(classLoader, "org/sonar/sqale", toDir, new Function<String, String>() {
            public String apply(@Nullable String path) {
                return "foo/" + FilenameUtils.getName(path);
            }
        });

        assertThat(FileUtils.listFiles(toDir, null, true).size(), Is.is(2));
        assertThat(new File(toDir, "foo/copyright.txt").exists(), Is.is(true));
        assertThat(new File(toDir, "foo/README.md").exists(), Is.is(true));
    }
}