@Test
public void testIsUnitInterval()
{

    assertTrue( MathUtils.isUnitInterval( "0" ) );
    assertTrue( MathUtils.isUnitInterval( "0.2" ) );
    assertTrue( MathUtils.isUnitInterval( "0.876" ) );
    assertTrue( MathUtils.isUnitInterval( "1" ) );
    
    assertFalse( MathUtils.isUnitInterval( "2" ) );
    assertFalse( MathUtils.isUnitInterval( "-1" ) );
    assertFalse( MathUtils.isUnitInterval( "abc" ) );
    assertFalse( MathUtils.isUnitInterval( "1.01" ) );
}