/** Test of toHyphenCase method, of class CodicUtils. */
 @Test
 public void testToHyphenCase() {
   assertEquals(null, CodicUtils.toHyphenCase(null));
   assertEquals("", CodicUtils.toHyphenCase(""));
   assertEquals("hyphen", CodicUtils.toHyphenCase("hyphen"));
   assertEquals("to-hyphen-case", CodicUtils.toHyphenCase("to hyphen case"));
 }
 /** Test of toCamelCase method, of class CodicUtils. */
 @Test
 public void testToCamelCase() {
   assertEquals(null, CodicUtils.toCamelCase(null));
   assertEquals("", CodicUtils.toCamelCase(""));
   assertEquals("camel", CodicUtils.toCamelCase("camel"));
   assertEquals("toCamelCase", CodicUtils.toCamelCase("to camel case"));
 }
 /** Test of toLowerUnderscoreCase method, of class CodicUtils. */
 @Test
 public void testToLowerUnderscoreCase() {
   assertEquals(null, CodicUtils.toLowerUnderscoreCase(null));
   assertEquals("", CodicUtils.toLowerUnderscoreCase(""));
   assertEquals("lower", CodicUtils.toLowerUnderscoreCase("lower"));
   assertEquals(
       "to_lower_underscore_case", CodicUtils.toLowerUnderscoreCase("to lower underscore case"));
 }
 /** Test of toPascalCase method, of class CodicUtils. */
 @Test
 public void testToPascalCase() {
   assertEquals(null, CodicUtils.toPascalCase(null));
   assertEquals("", CodicUtils.toPascalCase(""));
   assertEquals("AbcXyz", CodicUtils.toPascalCase("abc xyz"));
   assertEquals("ToPascalCase", CodicUtils.toPascalCase("to pascal case"));
   assertEquals("ABanana", CodicUtils.toPascalCase("a  banana"));
 }
 /** Test of toUpperUnderscoreCase method, of class CodicUtils. */
 @Test
 public void testToUpperUnderscoreCase() {
   assertEquals(null, CodicUtils.toUpperUnderscoreCase(null));
   assertEquals("", CodicUtils.toUpperUnderscoreCase(""));
   assertEquals("UPPER", CodicUtils.toUpperUnderscoreCase("upper"));
   assertEquals(
       "TO_UPPER_UNDERSCORE_CASE", CodicUtils.toUpperUnderscoreCase("to upper underscore case"));
 }
  /** Test of containsFullwidth method, of class CodicUtils. */
  @Test
  public void testContainsFullwidth() {
    assertTrue(CodicUtils.containsFullwidth("ひらがな"));
    assertTrue(CodicUtils.containsFullwidth("カタカナ"));
    assertTrue(CodicUtils.containsFullwidth("漢字"));
    assertTrue(CodicUtils.containsFullwidth("123"));
    assertTrue(CodicUtils.containsFullwidth("テスト123abc"));

    assertFalse(CodicUtils.containsFullwidth("abc123-?!"));
  }