// Copyright © 2024 Mikhail Hogrefe // // This file is part of Malachite. // // Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU // Lesser General Public License (LGPL) as published by the Free Software Foundation; either version // 3 of the License, or (at your option) any later version. See . use malachite_base::num::basic::unsigneds::PrimitiveUnsigned; use malachite_base::num::conversion::traits::{HasHalf, JoinHalves, SplitInHalf}; use malachite_base::test_util::generators::{unsigned_gen, unsigned_pair_gen_var_27}; fn join_halves_helper(upper: T::Half, lower: T::Half, out: T) { assert_eq!(T::join_halves(upper, lower), out); } #[test] pub fn test_join_halves() { join_halves_helper(0u32, 0u32, 0u64); join_halves_helper(0u32, 1u32, 1u64); join_halves_helper(0, u8::MAX, u16::from(u8::MAX)); join_halves_helper(1, 0, u16::from(u8::MAX) + 1); join_halves_helper(u8::MAX, u8::MAX, u16::MAX); join_halves_helper(1, 2, 258u16); join_halves_helper(0xabcd, 0x1234, 0xabcd1234u32); } fn join_halves_properties_helper< T: From + HasHalf + JoinHalves + PrimitiveUnsigned + SplitInHalf, HT: PrimitiveUnsigned, >() { unsigned_pair_gen_var_27::().test_properties(|(x, y)| { let joined = T::join_halves(x, y); assert_eq!((T::from(x) << (T::WIDTH >> 1)) + T::from(y), joined); assert_eq!(joined.upper_half(), x); assert_eq!(joined.lower_half(), y); }); unsigned_gen::().test_properties(|x| { assert_eq!(T::join_halves(HT::ZERO, x), T::from(x)); }); } #[test] fn join_halves_properties() { join_halves_properties_helper::(); join_halves_properties_helper::(); join_halves_properties_helper::(); join_halves_properties_helper::(); }