net.ontopia.topicmaps.viz.ResourceBundlesTest.java Source code

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Here is the source code for net.ontopia.topicmaps.viz.ResourceBundlesTest.java

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/*
 * #!
 * Ontopia Vizigator
 * #-
 * Copyright (C) 2001 - 2013 The Ontopia Project
 * #-
 * 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 net.ontopia.topicmaps.viz;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import junit.framework.TestCase;
import org.apache.commons.lang3.StringUtils;

public class ResourceBundlesTest extends TestCase {

    public ResourceBundlesTest(String name) {
        super(name);
    }

    /**
     * Checks all properties files in a given directory for consistency
     * against the master file. Note that the properties are loaded from
     * the classpath.
     */
    public void testTranslationsAreConsistent() throws IOException {
        String languages[] = { "de", "no", "ja" };

        Properties master = loadProperties("messages.properties");
        for (int ix = 0; ix < languages.length; ix++) {
            String file = "messages_" + languages[ix] + ".properties";
            Properties trans = loadProperties(file);
            List missing = new ArrayList();
            List extra = new ArrayList();

            for (Object prop : trans.keySet()) {
                if (!master.containsKey(prop))
                    extra.add(prop);
            }

            for (Object prop : master.keySet()) {
                if (!trans.containsKey(prop))
                    missing.add(prop);
            }

            assertTrue(buildReport(file, missing, extra), missing.isEmpty() && extra.isEmpty());
        }
    }

    private Properties loadProperties(String file) throws IOException {
        Properties props = new Properties();
        InputStream inputStream = VizController.class.getResourceAsStream(file);
        props.load(inputStream);
        inputStream.close();
        return props;
    }

    /**
     * Builds a readable error message listing everything that's wrong.
     */
    private String buildReport(String file, List missing, List extra) {
        String msg = file;
        if (!missing.isEmpty())
            msg += " is missing: " + StringUtils.join(missing, ", ");
        if (!extra.isEmpty())
            msg += " has extra: " + StringUtils.join(extra, ", ");
        return msg;
    }
}