public void TestDivide()
{
var prim = PrimitiveFactory.Get("/");
ScheminDecimal test_decimal = new ScheminDecimal(3.0m);
ScheminInteger test_integer = new ScheminInteger(3);
ScheminInteger test_divisor_int = new ScheminInteger(2);
ScheminDecimal test_divisor_decimal = new ScheminDecimal(2);
ScheminList decimal_args = new ScheminList(test_decimal);
decimal_args.Append(test_divisor_decimal);
ScheminList int_args = new ScheminList(test_integer);
int_args.Append(test_divisor_int);
ScheminList mixed_args = new ScheminList(test_integer);
mixed_args.Append(test_divisor_decimal);
ScheminDecimal decimal_result = (ScheminDecimal) prim.Execute(null, null, decimal_args);
ScheminInteger int_result = (ScheminInteger) prim.Execute(null, null, int_args);
ScheminDecimal mixed_result = (ScheminDecimal) prim.Execute(null, null, mixed_args);
ScheminInteger expected = new ScheminInteger(1);
Assert.AreEqual(1.5m, decimal_result.DecimalValue());
Assert.AreEqual(expected.IntegerValue(), int_result.IntegerValue());
Assert.AreEqual(1.5m, mixed_result.DecimalValue());
}
public void TestAdd()
{
var prim = PrimitiveFactory.Get("+");
ScheminDecimal test_decimal = new ScheminDecimal(1.5m);
ScheminInteger test_integer = new ScheminInteger(2);
ScheminPair decimal_args = new ScheminPair(test_decimal);
decimal_args = decimal_args.Append(test_decimal);
ScheminPair int_args = new ScheminPair(test_integer);
int_args = int_args.Append(test_integer);
ScheminPair mixed_args = new ScheminPair(test_integer);
mixed_args = mixed_args.Append(test_decimal);
ScheminDecimal decimal_result = (ScheminDecimal) prim.Execute(null, null, decimal_args);
ScheminInteger int_result = (ScheminInteger) prim.Execute(null, null, int_args);
ScheminDecimal mixed_result = (ScheminDecimal) prim.Execute(null, null, mixed_args);
ScheminInteger expected = new ScheminInteger(4);
Assert.AreEqual(3.0m, decimal_result.DecimalValue());
Assert.AreEqual(expected.IntegerValue(), int_result.IntegerValue());
Assert.AreEqual(3.5m, mixed_result.DecimalValue());
}
public override IScheminType Execute(Environment env, Evaluator eval, ScheminPair args)
{
bool dec = false;
var first = (IScheminNumeric) args.Car;
IScheminNumeric result = null;
foreach (IScheminType type in args)
{
if ((type as ScheminDecimal) != null)
{
dec = true;
result = new ScheminDecimal(first.DecimalValue());
}
}
if (!dec)
{
result = new ScheminInteger(first.IntegerValue());
}
if (args.Length < 2)
{
if (dec)
{
return new ScheminDecimal(first.DecimalValue() * -1);
}
else
{
return new ScheminInteger(first.IntegerValue() * -1);
}
}
foreach (IScheminType type in args.ListCdr())
{
if ((type as IScheminNumeric) != null)
{
var temp = (IScheminNumeric) type;
if (dec)
{
result = new ScheminDecimal(result.DecimalValue() - temp.DecimalValue());
}
else
{
result = new ScheminInteger(result.IntegerValue() - temp.IntegerValue());
}
}
}
return (IScheminType) result;
}
public void TestSubtract()
{
var prim = PrimitiveFactory.Get("-");
ScheminDecimal test_decimal = new ScheminDecimal(8.5m);
ScheminInteger test_integer = new ScheminInteger(20);
ScheminDecimal test_decimal_2 = new ScheminDecimal(4.1m);
ScheminInteger test_integer_2 = new ScheminInteger(6);
ScheminList decimal_args = new ScheminList(test_decimal);
decimal_args.Append(test_decimal_2);
ScheminList int_args = new ScheminList(test_integer);
int_args.Append(test_integer_2);
ScheminList mixed_args = new ScheminList(test_integer);
mixed_args.Append(test_decimal);
ScheminDecimal decimal_result = (ScheminDecimal) prim.Execute(null, null, decimal_args);
ScheminInteger int_result = (ScheminInteger) prim.Execute(null, null, int_args);
ScheminDecimal mixed_result = (ScheminDecimal) prim.Execute(null, null, mixed_args);
ScheminInteger expected = new ScheminInteger(14);
Assert.AreEqual(4.4m, decimal_result.DecimalValue());
Assert.AreEqual(expected.IntegerValue(), int_result.IntegerValue());
Assert.AreEqual(11.5m, mixed_result.DecimalValue());
}
public void TestMultiply()
{
var prim = PrimitiveFactory.Get("*");
ScheminDecimal test_decimal = new ScheminDecimal(1.5m);
ScheminInteger test_integer = new ScheminInteger(2);
ScheminInteger test_mult_int = new ScheminInteger(6);
ScheminDecimal test_mult_decimal = new ScheminDecimal(0.8m);
ScheminInteger test_large = new ScheminInteger(BigInteger.Parse("100000000000000000000000000000000"));
ScheminInteger test_large_2nd = new ScheminInteger(BigInteger.Parse("400000000000000000000"));
ScheminList decimal_args = new ScheminList(test_decimal);
decimal_args.Append(test_mult_decimal);
ScheminList int_args = new ScheminList(test_integer);
int_args.Append(test_mult_int);
ScheminList mixed_args = new ScheminList(test_integer);
mixed_args.Append(test_mult_decimal);
ScheminList large_args = new ScheminList(test_large);
large_args.Append(test_large_2nd);
ScheminDecimal decimal_result = (ScheminDecimal) prim.Execute(null, null, decimal_args);
ScheminInteger int_result = (ScheminInteger) prim.Execute(null, null, int_args);
ScheminDecimal mixed_result = (ScheminDecimal) prim.Execute(null, null, mixed_args);
ScheminInteger large_result = (ScheminInteger) prim.Execute(null, null, large_args);
ScheminInteger expected = new ScheminInteger(12);
ScheminInteger exp_large = new ScheminInteger(BigInteger.Parse("40000000000000000000000000000000000000000000000000000"));
Assert.AreEqual(1.2m, decimal_result.DecimalValue());
Assert.AreEqual(expected.IntegerValue(), int_result.IntegerValue());
Assert.AreEqual(1.6m, mixed_result.DecimalValue());
Assert.AreEqual(exp_large.IntegerValue(), large_result.IntegerValue());
}