@Test
public void testDecapitalize() {

    assertThat( Strings.decapitalize( null ) ).isNull();
    assertThat( Strings.decapitalize( "c" ) ).isEqualTo( "c" );
    assertThat( Strings.decapitalize( "capitalize" ) ).isEqualTo( "capitalize" );
    assertThat( Strings.decapitalize( "AlreadyCapitalized" ) ).isEqualTo( "alreadyCapitalized" );
    assertThat( Strings.decapitalize( "notCapitalized" ) ).isEqualTo( "notCapitalized" );
}