use malachite_base::num::basic::integers::PrimitiveInt;
use malachite_base::num::basic::signeds::PrimitiveSigned;
use malachite_base::num::basic::unsigneds::PrimitiveUnsigned;
use malachite_base::test_util::generators::{signed_pair_gen, unsigned_pair_gen_var_27};
#[test]
fn test_saturating_mul() {
fn test<T: PrimitiveInt>(x: T, y: T, out: T) {
assert_eq!(x.saturating_mul(y), out);
let mut x = x;
x.saturating_mul_assign(y);
assert_eq!(x, out);
}
test::<u16>(123, 456, 56088);
test::<u8>(123, 200, 255);
test::<i16>(123, -45, -5535);
test::<i8>(123, 45, 127);
test::<i8>(-123, 45, -128);
}
fn saturating_mul_properties_helper_unsigned<T: PrimitiveUnsigned>() {
unsigned_pair_gen_var_27::<T>().test_properties(|(x, y)| {
let mut product = x;
product.saturating_mul_assign(y);
assert_eq!(product, x.saturating_mul(y));
assert_eq!(y.saturating_mul(x), product);
assert!(product == T::ZERO || product >= x);
assert!(product == T::ZERO || product >= y);
if product < T::MAX {
assert_eq!(product, x * y);
}
});
}
fn saturating_mul_properties_helper_signed<T: PrimitiveSigned>() {
signed_pair_gen::<T>().test_properties(|(x, y)| {
let mut product = x;
product.saturating_mul_assign(y);
assert_eq!(product, x.saturating_mul(y));
assert_eq!(y.saturating_mul(x), product);
if product > T::MIN && product < T::MAX {
assert_eq!(product, x * y);
}
});
}
#[test]
fn saturating_mul_properties() {
apply_fn_to_unsigneds!(saturating_mul_properties_helper_unsigned);
apply_fn_to_signeds!(saturating_mul_properties_helper_signed);
}