GIVEN("a floating point number") {
Scalar zero = 0;
Scalar s1 = 3.3;
Scalar s2 = 7.9;
Scalar f1 (5, 8);
Scalar f2 (1, 3);
Scalar v1 ("x");
Scalar v2 ("y");
WHEN(" converting to double, get zero") {
REQUIRE(zero.ToDouble() == 0);
}
WHEN(" multiplying zero with another scalar gives zero") {
REQUIRE( (zero * Scalar(3) ).ToDouble() == 0);
// Multiply by a variable
auto s = zero * Scalar::Variable("a");
REQUIRE(s.IsNumeric());
REQUIRE(s.ToDouble() == 0);
}
WHEN(" creating from a double") {
REQUIRE(Scalar::Fraction(0.5).ToString() == "1/2");
REQUIRE(Scalar::Fraction(0.25).ToString() == "1/4");
}
