LocalesTest.java

package com.github.jknack.handlebars.internal;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

import java.util.Arrays;
import java.util.List;
import java.util.Locale;

import org.junit.Test;

/**
 * Unit test for {@link Locales}.
 */
public class LocalesTest {

  private static List<Locale> COMMON_LOCALES = Arrays.asList(Locale.CANADA, Locale.CANADA_FRENCH, Locale.CHINA, Locale.ENGLISH, Locale.GERMANY, Locale.FRANCE);

  @Test
  public void testUnderscore() {
    for (Locale l : COMMON_LOCALES) {
      // l.toString() returns format de_DE
      assertEquals(l, Locales.fromString(l.toString()));
    }
  }

  @Test
  public void testHyphen() {
    for (Locale l : COMMON_LOCALES) {
      // l.toLanguageTag() returns format de-DE
      assertEquals(l, Locales.fromString(l.toLanguageTag()));
    }
  }

  @Test
  public void testNull() {
     assertNull(Locales.fromString(null));
  }

}