@Test
public void testBuildExpression3() {

	CalculateDDMFormRuleActionSerializer
		calculateDDMFormRuleActionSerializer =
			new CalculateDDMFormRuleActionSerializer(null);
	Set<String> ddmFormFields = new HashSet<>();
	ddmFormFields.add("Num1");
	ddmFormFields.add("Num2");
	ddmFormFields.add("Num3");
	String expression = "Num1+Num2+Num3*3";
	String result = calculateDDMFormRuleActionSerializer.buildExpression(
		expression, ddmFormFields);
	Assert.assertEquals(
		"getValue('Num1')+getValue('Num2')+getValue('Num3')*3", result);
}