co.cask.cdap.internal.app.runtime.webapp.JarExploderTest.java Source code

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Here is the source code for co.cask.cdap.internal.app.runtime.webapp.JarExploderTest.java

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/*
 * Copyright  2014 Cask Data, Inc.
 *
 * Licensed 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 co.cask.cdap.internal.app.runtime.webapp;

import com.google.common.base.Charsets;
import com.google.common.base.Predicate;
import com.google.common.collect.ImmutableMap;
import com.google.common.io.Files;
import org.apache.commons.io.FileUtils;
import org.junit.Assert;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

import java.io.File;
import java.net.URL;
import java.util.Collection;
import java.util.Map;
import java.util.jar.JarEntry;

/**
 * Test jar exploder.
 */
public class JarExploderTest {

    private Map<String, String> aFileContentMap = ImmutableMap.of("test_explode/a/a1.txt", "a100",
            "test_explode/a/a2.txt", "a200", "test_explode/a/x/x1.txt", "x100");

    @ClassRule
    public static final TemporaryFolder TEMP_FOLDER = new TemporaryFolder();

    @Test
    public void testExplodeA() throws Exception {
        URL jarUrl = getClass().getResource("/test_explode.jar");
        Assert.assertNotNull(jarUrl);

        File dest = TEMP_FOLDER.newFolder();

        int numFiles = JarExploder.explode(new File(jarUrl.toURI()), dest, new Predicate<JarEntry>() {
            @Override
            public boolean apply(JarEntry input) {
                return input.getName().startsWith("test_explode/a");
            }
        });

        Assert.assertEquals(aFileContentMap.size(), numFiles);

        verifyA(dest);
    }

    private void verifyA(File dest) throws Exception {
        Collection<File> files = FileUtils.listFiles(dest, new String[] { "txt" }, true);
        Assert.assertEquals(aFileContentMap.size(), files.size());

        for (File f : files) {
            String name = f.getAbsolutePath().replaceFirst(dest.getAbsolutePath(), "");
            name = name.startsWith("/") ? name.substring(1, name.length()) : name;

            String expected = aFileContentMap.get(name);
            Assert.assertNotNull(expected);

            String actual = Files.toString(f, Charsets.US_ASCII);
            Assert.assertEquals(expected, actual.trim());
        }
    }
}