@Test
public void testParenthesis() throws Exception {

	BigDecimal bigDecimal = new BigDecimal(4);
	DDMExpressionImpl<BigDecimal> ddmExpressionImpl = createDDMExpression(
		"(8 + 2) / 2.5");
	Assert.assertEquals(
		bigDecimal.setScale(2), ddmExpressionImpl.evaluate());
}