public void DivisionReal_DivisorIsZero_ThrowsException(double input1, double input2)
{
RealLiteralExpression realLit1 = new RealLiteralExpression(input1, 1, 1);
RealLiteralExpression realLit2 = new RealLiteralExpression(input2, 2, 2);
DivisionExpression divisionExpr = new DivisionExpression(realLit1, realLit2, 1, 1);
IInterpreterReal parent = Substitute.For <IInterpreterReal>();
parent.DispatchReal(realLit1, Arg.Any <List <object> >()).Returns(input1);
parent.DispatchReal(realLit2, Arg.Any <List <object> >()).Returns(input2);
RealHelper realHelper = SetUpHelper(parent);
Assert.ThrowsException <DivisionByZeroException>(() => realHelper.DivisionReal(divisionExpr, new List <object>()));
}
public void DivisionReal_TwoReals_ReturnsCorrectResult(double input1, double input2, double expected)
{
RealLiteralExpression realLit1 = new RealLiteralExpression(input1, 1, 1);
RealLiteralExpression realLit2 = new RealLiteralExpression(input2, 2, 2);
DivisionExpression divisionExpr = new DivisionExpression(realLit1, realLit2, 1, 1);
IInterpreterReal parent = Substitute.For <IInterpreterReal>();
parent.DispatchReal(realLit1, Arg.Any <List <object> >()).Returns(input1);
parent.DispatchReal(realLit2, Arg.Any <List <object> >()).Returns(input2);
RealHelper realHelper = SetUpHelper(parent);
double res = realHelper.DivisionReal(divisionExpr, new List <object>());
Assert.AreEqual(expected, res);
}