@Test
       public void testLinearInterpolation() throws ParameterException {

               Interpolate2Real interpolate= getLinearInterpolation();
	double result;
	interpolate.setLookupValue(new RealLiteral(1.0));
	result = interpolate.getValue(null, -1);
	assertEquals(result, 100.0, 0.00000001);
	interpolate.setLookupValue(new RealLiteral(20.0));
	result = interpolate.getValue(null, -1);
	assertEquals(result, 102.5, 0.00000001);
	interpolate.setLookupValue(new RealLiteral(55.0));
	result = interpolate.getValue(null, -1);
	assertEquals(result, 155.0, 0.00000001);
	interpolate.setLookupValue(new RealLiteral(70.0));
	result = interpolate.getValue(null, -1);
	assertEquals(result, 200.0, 0.00000001);
}