LocaleUtilsTest.java

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 * Copyright 2011, Red Hat, Inc., and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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 org.jboss.seam.international.test.locale;

import java.util.Locale;

import junit.framework.Assert;
import org.jboss.seam.international.locale.LocaleUtils;
import org.junit.Test;

public class LocaleUtilsTest {
    @Test
    public void testLocaleLanguage() {
        String lang = "en";
        Locale lc = LocaleUtils.toLocale(lang);
        Assert.assertEquals(lang, lc.getLanguage());
    }

    @Test
    public void testLocaleCountryHyphen() {
        String locale = "en-GB";
        Locale lc = LocaleUtils.toLocale(locale);
        Assert.assertEquals(locale.substring(0, 2), lc.getLanguage());
        Assert.assertEquals(locale.substring(3), lc.getCountry());
    }

    @Test
    public void testLocaleCountryUnderscore() {
        String locale = "en_GB";
        Locale lc = LocaleUtils.toLocale(locale);
        Assert.assertEquals(locale.substring(0, 2), lc.getLanguage());
        Assert.assertEquals(locale.substring(3), lc.getCountry());
    }

    @Test
    public void testLocaleVariantHyphen() {
        String locale = "en--WIN";
        Locale lc = LocaleUtils.toLocale(locale);
        Assert.assertEquals(locale.substring(0, 2), lc.getLanguage());
        Assert.assertEquals(locale.substring(4), lc.getVariant());
    }

    @Test
    public void testLocaleVariantUnderscore() {
        String locale = "en__WIN";
        Locale lc = LocaleUtils.toLocale(locale);
        Assert.assertEquals(locale.substring(0, 2), lc.getLanguage());
        Assert.assertEquals(locale.substring(4), lc.getVariant());
    }

    @Test
    public void testLocaleCountryVariantHyphen() {
        String locale = "en-GB-WIN";
        Locale lc = LocaleUtils.toLocale(locale);
        Assert.assertEquals(locale.substring(0, 2), lc.getLanguage());
        Assert.assertEquals(locale.substring(3, 5), lc.getCountry());
        Assert.assertEquals(locale.substring(6), lc.getVariant());
    }

    @Test
    public void testLocaleCountryVariantUnderscore() {
        String locale = "en_US_WIN";
        Locale lc = LocaleUtils.toLocale(locale);
        Assert.assertEquals(locale.substring(0, 2), lc.getLanguage());
        Assert.assertEquals(locale.substring(3, 5), lc.getCountry());
        Assert.assertEquals(locale.substring(6), lc.getVariant());
    }

    @Test
    public void testLocaleNull() {
        Locale lc = LocaleUtils.toLocale(null);
        Assert.assertTrue(lc == null);
    }

    @Test
    public void testLocaleLengthFailure() {
        // Test length of 1 char
        try {
            LocaleUtils.toLocale("s");
            Assert.fail("IllegalArgumentException not thrown for length of 1 char");
        } catch (IllegalArgumentException e) {
            // Expected outcome
        }

        // Test length of 3 chars
        try {
            LocaleUtils.toLocale("sss");
            Assert.fail("IllegalArgumentException not thrown for length of 3 chars");
        } catch (IllegalArgumentException e) {
            // Expected outcome
        }

        // Test length of 4 chars
        try {
            LocaleUtils.toLocale("ssss");
            Assert.fail("IllegalArgumentException not thrown for length of 4 chars");
        } catch (IllegalArgumentException e) {
            // Expected outcome
        }

        // Test length of 6 chars
        try {
            LocaleUtils.toLocale("ssssss");
            Assert.fail("IllegalArgumentException not thrown for length of 6 chars");
        } catch (IllegalArgumentException e) {
            // Expected outcome
        }

        // Test length of 8 chars
        try {
            LocaleUtils.toLocale("ssssssss");
            Assert.fail("IllegalArgumentException not thrown for length of 8 chars");
        } catch (IllegalArgumentException e) {
            // Expected outcome
        }
    }

    @Test
    public void testLocaleCountryFailure() {
        String locale = "en;GB";
        try {
            LocaleUtils.toLocale(locale);
            Assert.fail("IllegalArgumentException not thrown");
        } catch (IllegalArgumentException e) {
            // Expected outcome
        }
    }

    @SuppressWarnings("static-access")
    @Test
    public void testLocaleCountryVariantFailure() {
        String locale = "en_GB'WIN";
        try {
            LocaleUtils lu = new LocaleUtils();
            lu.toLocale(locale);
            Assert.fail("IllegalArgumentException not thrown");
        } catch (IllegalArgumentException e) {
            // Expected outcome
        }
    }

    @Test
    public void testLocaleNonAlphas() {
        try {
            LocaleUtils.toLocale(";;");
            Assert.fail("IllegalArgumentException not thrown");
        } catch (IllegalArgumentException e) {
            // Expected outcome
        }

        try {
            LocaleUtils.toLocale("en_;;");
            Assert.fail("IllegalArgumentException not thrown");
        } catch (IllegalArgumentException e) {
            // Expected outcome
        }
    }
}