src/test/java/org/apache/maven/plugins/changes/ChangesCheckMojoTestCase.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.maven.plugins.changes;

import org.junit.Test;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assume.assumeTrue;

/**
 * @author Dennis Lundberg
 * @version $Id$
 * @since 2.4
 */
public class ChangesCheckMojoTestCase {
    @Test
    public void testIsValidDate() {
        String pattern;

        // null pattern
        pattern = null;
        assertFalse(ChangesCheckMojo.isValidDate(null, pattern));
        assertFalse(ChangesCheckMojo.isValidDate("", pattern));
        assertFalse(ChangesCheckMojo.isValidDate("2010-12-16", pattern));
        assertFalse(ChangesCheckMojo.isValidDate("pending", pattern));

        // empty pattern
        pattern = "";
        assertFalse(ChangesCheckMojo.isValidDate(null, pattern));
        assertFalse(ChangesCheckMojo.isValidDate("", pattern));
        assertFalse(ChangesCheckMojo.isValidDate("2010-12-16", pattern));
        assertFalse(ChangesCheckMojo.isValidDate("pending", pattern));

        // valid pattern
        pattern = "yyyy-MM-dd";
        assertFalse(ChangesCheckMojo.isValidDate(null, pattern));
        assertFalse(ChangesCheckMojo.isValidDate("", pattern));
        assertFalse(ChangesCheckMojo.isValidDate("2010-DD-MM", pattern));
        assertTrue(ChangesCheckMojo.isValidDate("2010-12-16", pattern));
        assertFalse(ChangesCheckMojo.isValidDate("pending", pattern));
    }

    @Test
    public void testIsValidateWithLocale() {
        String pattern, locale = null;

        // null locale
        pattern = "yyyy-MM-dd";
        assertFalse(ChangesCheckMojo.isValidDate(null, pattern, locale));
        assertFalse(ChangesCheckMojo.isValidDate("", pattern, locale));
        assertTrue(ChangesCheckMojo.isValidDate("2010-12-06", pattern, locale));
        assertFalse(ChangesCheckMojo.isValidDate("pending", pattern, locale));

        // unknown locale specified, should use default locale
        locale = "ab_CD";
        assertFalse(ChangesCheckMojo.isValidDate(null, pattern, locale));
        assertFalse(ChangesCheckMojo.isValidDate("", pattern, locale));
        assertTrue(ChangesCheckMojo.isValidDate("2010-12-06", pattern, locale));
        assertFalse(ChangesCheckMojo.isValidDate("pending", pattern, locale));

        // pattern with months as number
        pattern = "yyyy-MM-dd";

        // Czech locale
        locale = "cs_CZ";
        assertFalse(ChangesCheckMojo.isValidDate(null, pattern, locale));
        assertFalse(ChangesCheckMojo.isValidDate("", pattern, locale));
        assertTrue(ChangesCheckMojo.isValidDate("2010-12-06", pattern, locale));
        assertFalse(ChangesCheckMojo.isValidDate("pending", pattern, locale));

        // English locale
        locale = "en_US";
        assertFalse(ChangesCheckMojo.isValidDate(null, pattern, locale));
        assertFalse(ChangesCheckMojo.isValidDate("", pattern, locale));
        assertTrue(ChangesCheckMojo.isValidDate("2010-12-06", pattern, locale));
        assertFalse(ChangesCheckMojo.isValidDate("pending", pattern, locale));

        // pattern with months as text
        pattern = "dd MMM yyyy";

        // English locale
        locale = "en_US";
        assertFalse(ChangesCheckMojo.isValidDate(null, pattern, locale));
        assertFalse(ChangesCheckMojo.isValidDate("", pattern, locale));
        assertTrue(ChangesCheckMojo.isValidDate("06 Dec 2010", pattern, locale));
        assertFalse(ChangesCheckMojo.isValidDate("pending", pattern, locale));
    }

    // In JDK 9, the Unicode Consortium's Common Locale Data Repository (CLDR) data is enabled as the default locale
    // data,
    //   so that you can use standard locale data without any further action.
    // In JDK 8, although CLDR locale data is bundled with the JRE, it isn’t enabled by default.
    // source: https://docs.oracle.com/javase/9/migrate/toc.htm#JSMIG-GUID-A20F2989-BFA9-482D-8618-6CBB4BAAE310
    @Test
    public void testCompat() {
        // @TODO fix for Java 9+
        // System.setProperty( "java.locale.providers", "COMPAT,CLDR" ) is not picked up...
        assumeTrue(System.getProperty("java.version").startsWith("1."));

        // pattern with months as text
        String pattern = "dd MMM yyyy";

        String originalJavaLocaleProviders = null;
        if (!System.getProperty("java.version").startsWith("1.")) {
            originalJavaLocaleProviders = System.setProperty("java.locale.providers", "COMPAT,CLDR");
        }
        try {
            // Czech locale
            String locale = "cs_CZ";
            assertFalse(ChangesCheckMojo.isValidDate(null, pattern, locale));
            assertFalse(ChangesCheckMojo.isValidDate("", pattern, locale));
            assertTrue(ChangesCheckMojo.isValidDate("06 XII 2010", pattern, locale));
            assertFalse(ChangesCheckMojo.isValidDate("pending", pattern, locale));
        } finally {
            if (originalJavaLocaleProviders != null) {
                System.setProperty("java.locale.providers", originalJavaLocaleProviders);
            } else {
                System.clearProperty("java.locale.providers");
            }
        }
    }
}