use num_bigint::BigUint; use num_traits::{One, ToPrimitive, Zero}; use std::panic::catch_unwind; mod consts; use crate::consts::*; #[macro_use] mod macros; #[test] fn test_scalar_add() { fn check(x: &BigUint, y: &BigUint, z: &BigUint) { let (x, y, z) = (x.clone(), y.clone(), z.clone()); assert_unsigned_scalar_op!(x + y == z); assert_unsigned_scalar_assign_op!(x += y == z); } for elm in SUM_TRIPLES.iter() { let (a_vec, b_vec, c_vec) = *elm; let a = BigUint::from_slice(a_vec); let b = BigUint::from_slice(b_vec); let c = BigUint::from_slice(c_vec); check(&a, &b, &c); check(&b, &a, &c); } } #[test] fn test_scalar_sub() { fn check(x: &BigUint, y: &BigUint, z: &BigUint) { let (x, y, z) = (x.clone(), y.clone(), z.clone()); assert_unsigned_scalar_op!(x - y == z); assert_unsigned_scalar_assign_op!(x -= y == z); } for elm in SUM_TRIPLES.iter() { let (a_vec, b_vec, c_vec) = *elm; let a = BigUint::from_slice(a_vec); let b = BigUint::from_slice(b_vec); let c = BigUint::from_slice(c_vec); check(&c, &a, &b); check(&c, &b, &a); } } #[test] fn test_scalar_mul() { fn check(x: &BigUint, y: &BigUint, z: &BigUint) { let (x, y, z) = (x.clone(), y.clone(), z.clone()); assert_unsigned_scalar_op!(x * y == z); assert_unsigned_scalar_assign_op!(x *= y == z); } for elm in MUL_TRIPLES.iter() { let (a_vec, b_vec, c_vec) = *elm; let a = BigUint::from_slice(a_vec); let b = BigUint::from_slice(b_vec); let c = BigUint::from_slice(c_vec); check(&a, &b, &c); check(&b, &a, &c); } } #[test] fn test_scalar_rem_noncommutative() { assert_eq!(5u8 % BigUint::from(7u8), BigUint::from(5u8)); assert_eq!(BigUint::from(5u8) % 7u8, BigUint::from(5u8)); } #[test] fn test_scalar_div_rem() { fn check(x: &BigUint, y: &BigUint, z: &BigUint, r: &BigUint) { let (x, y, z, r) = (x.clone(), y.clone(), z.clone(), r.clone()); assert_unsigned_scalar_op!(x / y == z); assert_unsigned_scalar_op!(x % y == r); assert_unsigned_scalar_assign_op!(x /= y == z); assert_unsigned_scalar_assign_op!(x %= y == r); } for elm in MUL_TRIPLES.iter() { let (a_vec, b_vec, c_vec) = *elm; let a = BigUint::from_slice(a_vec); let b = BigUint::from_slice(b_vec); let c = BigUint::from_slice(c_vec); if !a.is_zero() { check(&c, &a, &b, &Zero::zero()); } if !b.is_zero() { check(&c, &b, &a, &Zero::zero()); } } for elm in DIV_REM_QUADRUPLES.iter() { let (a_vec, b_vec, c_vec, d_vec) = *elm; let a = BigUint::from_slice(a_vec); let b = BigUint::from_slice(b_vec); let c = BigUint::from_slice(c_vec); let d = BigUint::from_slice(d_vec); if !b.is_zero() { check(&a, &b, &c, &d); assert_unsigned_scalar_op!(a / b == c); assert_unsigned_scalar_op!(a % b == d); assert_unsigned_scalar_assign_op!(a /= b == c); assert_unsigned_scalar_assign_op!(a %= b == d); } } } #[test] fn test_scalar_div_rem_zero() { catch_unwind(|| BigUint::zero() / 0u32).unwrap_err(); catch_unwind(|| BigUint::zero() % 0u32).unwrap_err(); catch_unwind(|| BigUint::one() / 0u32).unwrap_err(); catch_unwind(|| BigUint::one() % 0u32).unwrap_err(); }