// 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 <https://www.gnu.org/licenses/>.

use malachite_base::num::arithmetic::traits::{
    ArithmeticCheckedShr, ShlRound, ShlRoundAssign, ShrRound, UnsignedAbs,
};
use malachite_base::num::basic::integers::PrimitiveInt;
use malachite_base::num::basic::signeds::PrimitiveSigned;
use malachite_base::num::basic::unsigneds::PrimitiveUnsigned;
use malachite_base::num::conversion::traits::ExactFrom;
use malachite_base::rounding_modes::exhaustive::exhaustive_rounding_modes;
use malachite_base::rounding_modes::RoundingMode::{self, *};
use malachite_base::test_util::generators::{
    signed_rounding_mode_pair_gen, signed_signed_rounding_mode_triple_gen_var_4,
    unsigned_rounding_mode_pair_gen, unsigned_signed_rounding_mode_triple_gen_var_2,
};
use std::cmp::Ordering::{self, *};
use std::panic::catch_unwind;

#[test]
fn test_shl_round() {
    fn test<T: PrimitiveInt + ShlRound<U, Output = T> + ShlRoundAssign<U>, U: PrimitiveInt>(
        t: T,
        u: U,
        rm: RoundingMode,
        out: T,
        o: Ordering,
    ) {
        assert_eq!(t.shl_round(u, rm), (out, o));

        let mut t = t;
        assert_eq!(t.shl_round_assign(u, rm), o);
        assert_eq!(t, out);
    }
    test::<u8, i8>(0, 0, Down, 0, Equal);
    test::<u8, i8>(0, 0, Up, 0, Equal);
    test::<u8, i8>(0, 0, Floor, 0, Equal);
    test::<u8, i8>(0, 0, Ceiling, 0, Equal);
    test::<u8, i8>(0, 0, Nearest, 0, Equal);
    test::<u8, i8>(0, 0, Exact, 0, Equal);

    test::<u8, i16>(0, -10, Down, 0, Equal);
    test::<u8, i16>(0, -10, Up, 0, Equal);
    test::<u8, i16>(0, -10, Floor, 0, Equal);
    test::<u8, i16>(0, -10, Ceiling, 0, Equal);
    test::<u8, i16>(0, -10, Nearest, 0, Equal);
    test::<u8, i16>(0, -10, Exact, 0, Equal);

    test::<i8, i32>(123, 0, Down, 123, Equal);
    test::<i8, i32>(123, 0, Up, 123, Equal);
    test::<i8, i32>(123, 0, Floor, 123, Equal);
    test::<i8, i32>(123, 0, Ceiling, 123, Equal);
    test::<i8, i32>(123, 0, Nearest, 123, Equal);
    test::<i8, i32>(123, 0, Exact, 123, Equal);

    test::<u8, i64>(245, -1, Down, 122, Less);
    test::<u8, i64>(245, -1, Up, 123, Greater);
    test::<u8, i64>(245, -1, Floor, 122, Less);
    test::<u8, i64>(245, -1, Ceiling, 123, Greater);
    test::<u8, i64>(245, -1, Nearest, 122, Less);

    test::<u8, i128>(246, -1, Down, 123, Equal);
    test::<u8, i128>(246, -1, Up, 123, Equal);
    test::<u8, i128>(246, -1, Floor, 123, Equal);
    test::<u8, i128>(246, -1, Ceiling, 123, Equal);
    test::<u8, i128>(246, -1, Nearest, 123, Equal);
    test::<u8, i128>(246, -1, Exact, 123, Equal);

    test::<u8, isize>(247, -1, Down, 123, Less);
    test::<u8, isize>(247, -1, Up, 124, Greater);
    test::<u8, isize>(247, -1, Floor, 123, Less);
    test::<u8, isize>(247, -1, Ceiling, 124, Greater);
    test::<u8, isize>(247, -1, Nearest, 124, Greater);

    test::<i16, i8>(491, -2, Down, 122, Less);
    test::<i16, i8>(491, -2, Up, 123, Greater);
    test::<i16, i8>(491, -2, Floor, 122, Less);
    test::<i16, i8>(491, -2, Ceiling, 123, Greater);
    test::<i16, i8>(491, -2, Nearest, 123, Greater);

    test::<u16, i16>(492, -2, Down, 123, Equal);
    test::<u16, i16>(492, -2, Up, 123, Equal);
    test::<u16, i16>(492, -2, Floor, 123, Equal);
    test::<u16, i16>(492, -2, Ceiling, 123, Equal);
    test::<u16, i16>(492, -2, Nearest, 123, Equal);
    test::<u16, i16>(492, -2, Exact, 123, Equal);

    test::<i16, i32>(493, -2, Down, 123, Less);
    test::<i16, i32>(493, -2, Up, 124, Greater);
    test::<i16, i32>(493, -2, Floor, 123, Less);
    test::<i16, i32>(493, -2, Ceiling, 124, Greater);
    test::<i16, i32>(493, -2, Nearest, 123, Less);

    test::<u32, i8>(4127195135, -25, Down, 122, Less);
    test::<u32, i8>(4127195135, -25, Up, 123, Greater);
    test::<u32, i8>(4127195135, -25, Floor, 122, Less);
    test::<u32, i8>(4127195135, -25, Ceiling, 123, Greater);
    test::<u32, i8>(4127195135, -25, Nearest, 123, Greater);

    test::<u32, i16>(4127195136, -25, Down, 123, Equal);
    test::<u32, i16>(4127195136, -25, Up, 123, Equal);
    test::<u32, i16>(4127195136, -25, Floor, 123, Equal);
    test::<u32, i16>(4127195136, -25, Ceiling, 123, Equal);
    test::<u32, i16>(4127195136, -25, Nearest, 123, Equal);
    test::<u32, i16>(4127195136, -25, Exact, 123, Equal);

    test::<u32, i32>(4127195137, -25, Down, 123, Less);
    test::<u32, i32>(4127195137, -25, Up, 124, Greater);
    test::<u32, i32>(4127195137, -25, Floor, 123, Less);
    test::<u32, i32>(4127195137, -25, Ceiling, 124, Greater);
    test::<u32, i32>(4127195137, -25, Nearest, 123, Less);

    test::<i64, i8>(8254390271, -26, Down, 122, Less);
    test::<i64, i8>(8254390271, -26, Up, 123, Greater);
    test::<i64, i8>(8254390271, -26, Floor, 122, Less);
    test::<i64, i8>(8254390271, -26, Ceiling, 123, Greater);
    test::<i64, i8>(8254390271, -26, Nearest, 123, Greater);

    test::<u64, i16>(8254390272, -26, Down, 123, Equal);
    test::<u64, i16>(8254390272, -26, Up, 123, Equal);
    test::<u64, i16>(8254390272, -26, Floor, 123, Equal);
    test::<u64, i16>(8254390272, -26, Ceiling, 123, Equal);
    test::<u64, i16>(8254390272, -26, Nearest, 123, Equal);
    test::<u64, i16>(8254390272, -26, Exact, 123, Equal);

    test::<i64, i32>(8254390273, -26, Down, 123, Less);
    test::<i64, i32>(8254390273, -26, Up, 124, Greater);
    test::<i64, i32>(8254390273, -26, Floor, 123, Less);
    test::<i64, i32>(8254390273, -26, Ceiling, 124, Greater);
    test::<i64, i32>(8254390273, -26, Nearest, 123, Less);

    test::<i64, i64>(0xffffffff, -1, Down, 0x7fffffff, Less);
    test::<i64, i64>(0xffffffff, -1, Up, 0x80000000, Greater);
    test::<i64, i64>(0xffffffff, -1, Floor, 0x7fffffff, Less);
    test::<i64, i64>(0xffffffff, -1, Ceiling, 0x80000000, Greater);
    test::<i64, i64>(0xffffffff, -1, Nearest, 0x80000000, Greater);

    test::<u64, i64>(0x100000000, -1, Down, 0x80000000, Equal);
    test::<u64, i64>(0x100000000, -1, Up, 0x80000000, Equal);
    test::<u64, i64>(0x100000000, -1, Floor, 0x80000000, Equal);
    test::<u64, i64>(0x100000000, -1, Ceiling, 0x80000000, Equal);
    test::<u64, i64>(0x100000000, -1, Nearest, 0x80000000, Equal);
    test::<u64, i64>(0x100000000, -1, Exact, 0x80000000, Equal);

    test::<u64, i128>(0x100000001, -1, Down, 0x80000000, Less);
    test::<u64, i128>(0x100000001, -1, Up, 0x80000001, Greater);
    test::<u64, i128>(0x100000001, -1, Floor, 0x80000000, Less);
    test::<u64, i128>(0x100000001, -1, Ceiling, 0x80000001, Greater);
    test::<u64, i128>(0x100000001, -1, Nearest, 0x80000000, Less);

    test::<i64, isize>(1000000000000, 0, Down, 1000000000000, Equal);
    test::<i64, isize>(1000000000000, 0, Up, 1000000000000, Equal);
    test::<i64, isize>(1000000000000, 0, Floor, 1000000000000, Equal);
    test::<i64, isize>(1000000000000, 0, Ceiling, 1000000000000, Equal);
    test::<i64, isize>(1000000000000, 0, Nearest, 1000000000000, Equal);
    test::<i64, isize>(1000000000000, 0, Exact, 1000000000000, Equal);

    test::<i128, i8>(7999999999999, -3, Down, 999999999999, Less);
    test::<i128, i8>(7999999999999, -3, Up, 1000000000000, Greater);
    test::<i128, i8>(7999999999999, -3, Floor, 999999999999, Less);
    test::<i128, i8>(7999999999999, -3, Ceiling, 1000000000000, Greater);
    test::<i128, i8>(7999999999999, -3, Nearest, 1000000000000, Greater);

    test::<u128, i16>(8000000000000, -3, Down, 1000000000000, Equal);
    test::<u128, i16>(8000000000000, -3, Up, 1000000000000, Equal);
    test::<u128, i16>(8000000000000, -3, Floor, 1000000000000, Equal);
    test::<u128, i16>(8000000000000, -3, Ceiling, 1000000000000, Equal);
    test::<u128, i16>(8000000000000, -3, Nearest, 1000000000000, Equal);
    test::<u128, i16>(8000000000000, -3, Exact, 1000000000000, Equal);

    test::<u128, i32>(8000000000001, -3, Down, 1000000000000, Less);
    test::<u128, i32>(8000000000001, -3, Up, 1000000000001, Greater);
    test::<u128, i32>(8000000000001, -3, Floor, 1000000000000, Less);
    test::<u128, i32>(8000000000001, -3, Ceiling, 1000000000001, Greater);
    test::<u128, i32>(8000000000001, -3, Nearest, 1000000000000, Less);

    test::<i128, i64>(1000000000000, -10, Down, 976562500, Equal);
    test::<i128, i64>(1000000000000, -10, Up, 976562500, Equal);
    test::<i128, i64>(1000000000000, -10, Floor, 976562500, Equal);
    test::<i128, i64>(1000000000000, -10, Ceiling, 976562500, Equal);
    test::<i128, i64>(1000000000000, -10, Nearest, 976562500, Equal);
    test::<i128, i64>(1000000000000, -10, Exact, 976562500, Equal);

    test::<u128, i128>(980657949, -72, Down, 0, Less);
    test::<u128, i128>(980657949, -72, Up, 1, Greater);
    test::<u128, i128>(980657949, -72, Floor, 0, Less);
    test::<u128, i128>(980657949, -72, Ceiling, 1, Greater);
    test::<u128, i128>(980657949, -72, Nearest, 0, Less);

    test::<i128, isize>(0xffffffff, -31, Down, 1, Less);
    test::<i128, isize>(0xffffffff, -31, Up, 2, Greater);
    test::<i128, isize>(0xffffffff, -31, Floor, 1, Less);
    test::<i128, isize>(0xffffffff, -31, Ceiling, 2, Greater);
    test::<i128, isize>(0xffffffff, -31, Nearest, 2, Greater);

    test::<u32, i128>(0xffffffff, -32, Down, 0, Less);
    test::<u32, i128>(0xffffffff, -32, Up, 1, Greater);
    test::<u32, i128>(0xffffffff, -32, Floor, 0, Less);
    test::<u32, i128>(0xffffffff, -32, Ceiling, 1, Greater);
    test::<u32, i128>(0xffffffff, -32, Nearest, 1, Greater);

    test::<u64, i8>(0x100000000, -32, Down, 1, Equal);
    test::<u64, i8>(0x100000000, -32, Up, 1, Equal);
    test::<u64, i8>(0x100000000, -32, Floor, 1, Equal);
    test::<u64, i8>(0x100000000, -32, Ceiling, 1, Equal);
    test::<u64, i8>(0x100000000, -32, Nearest, 1, Equal);
    test::<u64, i8>(0x100000000, -32, Exact, 1, Equal);

    test::<i64, i16>(0x100000000, -33, Down, 0, Less);
    test::<i64, i16>(0x100000000, -33, Up, 1, Greater);
    test::<i64, i16>(0x100000000, -33, Floor, 0, Less);
    test::<i64, i16>(0x100000000, -33, Ceiling, 1, Greater);
    test::<i64, i16>(0x100000000, -33, Nearest, 0, Less);

    test::<u8, i8>(0, 10, Exact, 0, Equal);
    test::<u8, i16>(123, 1, Exact, 246, Equal);
    test::<u16, i32>(123, 2, Exact, 492, Equal);
    test::<u64, i64>(123, 25, Exact, 4127195136, Equal);
    test::<u128, i128>(123, 26, Exact, 8254390272, Equal);
    test::<u8, isize>(123, 100, Exact, 0, Equal);

    test::<u64, i8>(0x80000000, 1, Exact, 0x100000000, Equal);
    test::<i64, i16>(1000000000000, 3, Exact, 8000000000000, Equal);
    test::<u64, i8>(1000000000000, 24, Exact, 16777216000000000000, Equal);
    test::<i128, i16>(1000000000000, 25, Exact, 33554432000000000000, Equal);
    test::<u128, i32>(1000000000000, 31, Exact, 2147483648000000000000, Equal);
    test::<i128, i64>(1000000000000, 32, Exact, 4294967296000000000000, Equal);
    test::<u128, i128>(1000000000000, 33, Exact, 8589934592000000000000, Equal);
    test::<i64, isize>(1000000000000, 100, Exact, 0, Equal);

    test::<i8, i8>(-123, 0, Down, -123, Equal);
    test::<i8, i8>(-123, 0, Up, -123, Equal);
    test::<i8, i8>(-123, 0, Floor, -123, Equal);
    test::<i8, i8>(-123, 0, Ceiling, -123, Equal);
    test::<i8, i8>(-123, 0, Nearest, -123, Equal);
    test::<i8, i8>(-123, 0, Exact, -123, Equal);

    test::<i16, i8>(-245, -1, Down, -122, Greater);
    test::<i16, i8>(-245, -1, Up, -123, Less);
    test::<i16, i8>(-245, -1, Floor, -123, Less);
    test::<i16, i8>(-245, -1, Ceiling, -122, Greater);
    test::<i16, i8>(-245, -1, Nearest, -122, Greater);

    test::<i16, i16>(-246, -1, Down, -123, Equal);
    test::<i16, i16>(-246, -1, Up, -123, Equal);
    test::<i16, i16>(-246, -1, Floor, -123, Equal);
    test::<i16, i16>(-246, -1, Ceiling, -123, Equal);
    test::<i16, i16>(-246, -1, Nearest, -123, Equal);
    test::<i16, i16>(-246, -1, Exact, -123, Equal);

    test::<i16, i32>(-247, -1, Down, -123, Greater);
    test::<i16, i32>(-247, -1, Up, -124, Less);
    test::<i16, i32>(-247, -1, Floor, -124, Less);
    test::<i16, i32>(-247, -1, Ceiling, -123, Greater);
    test::<i16, i32>(-247, -1, Nearest, -124, Less);

    test::<i16, i64>(-491, -2, Down, -122, Greater);
    test::<i16, i64>(-491, -2, Up, -123, Less);
    test::<i16, i64>(-491, -2, Floor, -123, Less);
    test::<i16, i64>(-491, -2, Ceiling, -122, Greater);
    test::<i16, i64>(-491, -2, Nearest, -123, Less);

    test::<i16, i128>(-492, -2, Down, -123, Equal);
    test::<i16, i128>(-492, -2, Up, -123, Equal);
    test::<i16, i128>(-492, -2, Floor, -123, Equal);
    test::<i16, i128>(-492, -2, Ceiling, -123, Equal);
    test::<i16, i128>(-492, -2, Nearest, -123, Equal);
    test::<i16, i128>(-492, -2, Exact, -123, Equal);

    test::<i16, isize>(-493, -2, Down, -123, Greater);
    test::<i16, isize>(-493, -2, Up, -124, Less);
    test::<i16, isize>(-493, -2, Floor, -124, Less);
    test::<i16, isize>(-493, -2, Ceiling, -123, Greater);
    test::<i16, isize>(-493, -2, Nearest, -123, Greater);

    test::<i64, i8>(-4127195135, -25, Down, -122, Greater);
    test::<i64, i8>(-4127195135, -25, Up, -123, Less);
    test::<i64, i8>(-4127195135, -25, Floor, -123, Less);
    test::<i64, i8>(-4127195135, -25, Ceiling, -122, Greater);
    test::<i64, i8>(-4127195135, -25, Nearest, -123, Less);

    test::<i64, i16>(-4127195136, -25, Down, -123, Equal);
    test::<i64, i16>(-4127195136, -25, Up, -123, Equal);
    test::<i64, i16>(-4127195136, -25, Floor, -123, Equal);
    test::<i64, i16>(-4127195136, -25, Ceiling, -123, Equal);
    test::<i64, i16>(-4127195136, -25, Nearest, -123, Equal);
    test::<i64, i16>(-4127195136, -25, Exact, -123, Equal);

    test::<i64, i32>(-4127195137, -25, Down, -123, Greater);
    test::<i64, i32>(-4127195137, -25, Up, -124, Less);
    test::<i64, i32>(-4127195137, -25, Floor, -124, Less);
    test::<i64, i32>(-4127195137, -25, Ceiling, -123, Greater);
    test::<i64, i32>(-4127195137, -25, Nearest, -123, Greater);

    test::<i64, i64>(-8254390271, -26, Down, -122, Greater);
    test::<i64, i64>(-8254390271, -26, Up, -123, Less);
    test::<i64, i64>(-8254390271, -26, Floor, -123, Less);
    test::<i64, i64>(-8254390271, -26, Ceiling, -122, Greater);
    test::<i64, i64>(-8254390271, -26, Nearest, -123, Less);

    test::<i64, i128>(-8254390272, -26, Down, -123, Equal);
    test::<i64, i128>(-8254390272, -26, Up, -123, Equal);
    test::<i64, i128>(-8254390272, -26, Floor, -123, Equal);
    test::<i64, i128>(-8254390272, -26, Ceiling, -123, Equal);
    test::<i64, i128>(-8254390272, -26, Nearest, -123, Equal);
    test::<i64, i128>(-8254390272, -26, Exact, -123, Equal);

    test::<i64, isize>(-8254390273, -26, Down, -123, Greater);
    test::<i64, isize>(-8254390273, -26, Up, -124, Less);
    test::<i64, isize>(-8254390273, -26, Floor, -124, Less);
    test::<i64, isize>(-8254390273, -26, Ceiling, -123, Greater);
    test::<i64, isize>(-8254390273, -26, Nearest, -123, Greater);

    test::<i128, i8>(-0xffffffff, -1, Down, -0x7fffffff, Greater);
    test::<i128, i8>(-0xffffffff, -1, Up, -0x80000000, Less);
    test::<i128, i8>(-0xffffffff, -1, Floor, -0x80000000, Less);
    test::<i128, i8>(-0xffffffff, -1, Ceiling, -0x7fffffff, Greater);
    test::<i128, i8>(-0xffffffff, -1, Nearest, -0x80000000, Less);

    test::<i128, i16>(-0x100000000, -1, Down, -0x80000000, Equal);
    test::<i128, i16>(-0x100000000, -1, Up, -0x80000000, Equal);
    test::<i128, i16>(-0x100000000, -1, Floor, -0x80000000, Equal);
    test::<i128, i16>(-0x100000000, -1, Ceiling, -0x80000000, Equal);
    test::<i128, i16>(-0x100000000, -1, Nearest, -0x80000000, Equal);
    test::<i128, i16>(-0x100000000, -1, Exact, -0x80000000, Equal);

    test::<i128, i32>(-0x100000001, -1, Down, -0x80000000, Greater);
    test::<i128, i32>(-0x100000001, -1, Up, -0x80000001, Less);
    test::<i128, i32>(-0x100000001, -1, Floor, -0x80000001, Less);
    test::<i128, i32>(-0x100000001, -1, Ceiling, -0x80000000, Greater);
    test::<i128, i32>(-0x100000001, -1, Nearest, -0x80000000, Greater);

    test::<i128, i64>(-1000000000000, 0, Down, -1000000000000, Equal);
    test::<i128, i64>(-1000000000000, 0, Up, -1000000000000, Equal);
    test::<i128, i64>(-1000000000000, 0, Floor, -1000000000000, Equal);
    test::<i128, i64>(-1000000000000, 0, Ceiling, -1000000000000, Equal);
    test::<i128, i64>(-1000000000000, 0, Nearest, -1000000000000, Equal);
    test::<i128, i64>(-1000000000000, 0, Exact, -1000000000000, Equal);

    test::<i128, i128>(-7999999999999, -3, Down, -999999999999, Greater);
    test::<i128, i128>(-7999999999999, -3, Up, -1000000000000, Less);
    test::<i128, i128>(-7999999999999, -3, Floor, -1000000000000, Less);
    test::<i128, i128>(-7999999999999, -3, Ceiling, -999999999999, Greater);
    test::<i128, i128>(-7999999999999, -3, Nearest, -1000000000000, Less);

    test::<i128, isize>(-8000000000000, -3, Down, -1000000000000, Equal);
    test::<i128, isize>(-8000000000000, -3, Up, -1000000000000, Equal);
    test::<i128, isize>(-8000000000000, -3, Floor, -1000000000000, Equal);
    test::<i128, isize>(-8000000000000, -3, Ceiling, -1000000000000, Equal);
    test::<i128, isize>(-8000000000000, -3, Nearest, -1000000000000, Equal);
    test::<i128, isize>(-8000000000000, -3, Exact, -1000000000000, Equal);

    test::<i64, i8>(-8000000000001, -3, Down, -1000000000000, Greater);
    test::<i64, i8>(-8000000000001, -3, Up, -1000000000001, Less);
    test::<i64, i8>(-8000000000001, -3, Floor, -1000000000001, Less);
    test::<i64, i8>(-8000000000001, -3, Ceiling, -1000000000000, Greater);
    test::<i64, i8>(-8000000000001, -3, Nearest, -1000000000000, Greater);

    test::<i128, i16>(-16777216000000000000, -24, Down, -1000000000000, Equal);
    test::<i128, i16>(-16777216000000000000, -24, Up, -1000000000000, Equal);
    test::<i128, i16>(-16777216000000000000, -24, Floor, -1000000000000, Equal);
    test::<i128, i16>(-16777216000000000000, -24, Ceiling, -1000000000000, Equal);
    test::<i128, i16>(-16777216000000000000, -24, Nearest, -1000000000000, Equal);
    test::<i128, i16>(-16777216000000000000, -24, Exact, -1000000000000, Equal);

    test::<i128, i32>(-33554432000000000000, -25, Down, -1000000000000, Equal);
    test::<i128, i32>(-33554432000000000000, -25, Up, -1000000000000, Equal);
    test::<i128, i32>(-33554432000000000000, -25, Floor, -1000000000000, Equal);
    test::<i128, i32>(-33554432000000000000, -25, Ceiling, -1000000000000, Equal);
    test::<i128, i32>(-33554432000000000000, -25, Nearest, -1000000000000, Equal);
    test::<i128, i32>(-33554432000000000000, -25, Exact, -1000000000000, Equal);

    test::<i128, i64>(-2147483648000000000000, -31, Down, -1000000000000, Equal);
    test::<i128, i64>(-2147483648000000000000, -31, Up, -1000000000000, Equal);
    test::<i128, i64>(-2147483648000000000000, -31, Floor, -1000000000000, Equal);
    test::<i128, i64>(-2147483648000000000000, -31, Ceiling, -1000000000000, Equal);
    test::<i128, i64>(-2147483648000000000000, -31, Nearest, -1000000000000, Equal);
    test::<i128, i64>(-2147483648000000000000, -31, Exact, -1000000000000, Equal);

    test::<i128, i128>(-4294967296000000000000, -32, Down, -1000000000000, Equal);
    test::<i128, i128>(-4294967296000000000000, -32, Up, -1000000000000, Equal);
    test::<i128, i128>(-4294967296000000000000, -32, Floor, -1000000000000, Equal);
    test::<i128, i128>(-4294967296000000000000, -32, Ceiling, -1000000000000, Equal);
    test::<i128, i128>(-4294967296000000000000, -32, Nearest, -1000000000000, Equal);
    test::<i128, i128>(-4294967296000000000000, -32, Exact, -1000000000000, Equal);

    test::<i128, isize>(-8589934592000000000000, -33, Down, -1000000000000, Equal);
    test::<i128, isize>(-8589934592000000000000, -33, Up, -1000000000000, Equal);
    test::<i128, isize>(-8589934592000000000000, -33, Floor, -1000000000000, Equal);
    test::<i128, isize>(-8589934592000000000000, -33, Ceiling, -1000000000000, Equal);
    test::<i128, isize>(-8589934592000000000000, -33, Nearest, -1000000000000, Equal);
    test::<i128, isize>(-8589934592000000000000, -33, Exact, -1000000000000, Equal);

    test::<i64, i8>(-1000000000000, -10, Down, -976562500, Equal);
    test::<i64, i8>(-1000000000000, -10, Up, -976562500, Equal);
    test::<i64, i8>(-1000000000000, -10, Floor, -976562500, Equal);
    test::<i64, i8>(-1000000000000, -10, Ceiling, -976562500, Equal);
    test::<i64, i8>(-1000000000000, -10, Nearest, -976562500, Equal);
    test::<i64, i8>(-1000000000000, -10, Exact, -976562500, Equal);

    test::<i64, i16>(-980657949, -72, Down, 0, Greater);
    test::<i64, i16>(-980657949, -72, Up, -1, Less);
    test::<i64, i16>(-980657949, -72, Floor, -1, Less);
    test::<i64, i16>(-980657949, -72, Ceiling, 0, Greater);
    test::<i64, i16>(-980657949, -72, Nearest, 0, Greater);

    test::<i64, i32>(-0xffffffff, -31, Down, -1, Greater);
    test::<i64, i32>(-0xffffffff, -31, Up, -2, Less);
    test::<i64, i32>(-0xffffffff, -31, Floor, -2, Less);
    test::<i64, i32>(-0xffffffff, -31, Ceiling, -1, Greater);
    test::<i64, i32>(-0xffffffff, -31, Nearest, -2, Less);

    test::<i64, i64>(-0xffffffff, -32, Down, 0, Greater);
    test::<i64, i64>(-0xffffffff, -32, Up, -1, Less);
    test::<i64, i64>(-0xffffffff, -32, Floor, -1, Less);
    test::<i64, i64>(-0xffffffff, -32, Ceiling, 0, Greater);
    test::<i64, i64>(-0xffffffff, -32, Nearest, -1, Less);

    test::<i64, i128>(-0x100000000, -32, Down, -1, Equal);
    test::<i64, i128>(-0x100000000, -32, Up, -1, Equal);
    test::<i64, i128>(-0x100000000, -32, Floor, -1, Equal);
    test::<i64, i128>(-0x100000000, -32, Ceiling, -1, Equal);
    test::<i64, i128>(-0x100000000, -32, Nearest, -1, Equal);
    test::<i64, i128>(-0x100000000, -32, Exact, -1, Equal);

    test::<i64, isize>(-0x100000000, -33, Down, 0, Greater);
    test::<i64, isize>(-0x100000000, -33, Up, -1, Less);
    test::<i64, isize>(-0x100000000, -33, Floor, -1, Less);
    test::<i64, isize>(-0x100000000, -33, Ceiling, 0, Greater);
    test::<i64, isize>(-0x100000000, -33, Nearest, 0, Greater);

    test::<i16, i8>(-123, 1, Exact, -246, Equal);
    test::<i16, i16>(-123, 2, Exact, -492, Equal);
    test::<i64, i8>(-123, 25, Exact, -4127195136, Equal);
    test::<i64, i16>(-123, 26, Exact, -8254390272, Equal);
    test::<i64, i32>(-0x80000000, 1, Exact, -0x100000000, Equal);
    test::<i64, i64>(-1000000000000, 3, Exact, -8000000000000, Equal);
    test::<i128, i128>(-1000000000000, 24, Exact, -16777216000000000000, Equal);
    test::<i128, isize>(-1000000000000, 25, Exact, -33554432000000000000, Equal);
    test::<i128, i8>(-1000000000000, 31, Exact, -2147483648000000000000, Equal);
    test::<i128, i16>(-1000000000000, 32, Exact, -4294967296000000000000, Equal);
    test::<i128, i32>(-1000000000000, 33, Exact, -8589934592000000000000, Equal);
}

fn shl_round_fail_helper<
    T: PrimitiveInt + ShlRound<U, Output = T> + ShlRoundAssign<U>,
    U: PrimitiveSigned,
>() {
    assert_panic!(T::exact_from(123).shl_round(U::NEGATIVE_ONE, Exact));
    assert_panic!(T::exact_from(123).shl_round(U::exact_from(-100), Exact));
    assert_panic!(T::exact_from(123).shl_round_assign(U::NEGATIVE_ONE, Exact));
    assert_panic!(T::exact_from(123).shl_round_assign(U::exact_from(-100), Exact));
}

#[test]
fn shl_round_fail() {
    apply_fn_to_primitive_ints_and_signeds!(shl_round_fail_helper);
}

fn shl_round_properties_helper_unsigned_signed<
    T: ArithmeticCheckedShr<U, Output = T>
        + PrimitiveUnsigned
        + ShlRound<U, Output = T>
        + ShlRoundAssign<U>
        + ShrRound<U, Output = T>,
    U: PrimitiveSigned,
>()
where
    u64: TryFrom<<U as UnsignedAbs>::Output>,
{
    unsigned_signed_rounding_mode_triple_gen_var_2::<T, U>().test_properties(|(n, i, rm)| {
        let mut mut_n = n;
        let o = mut_n.shl_round_assign(i, rm);
        let shifted = mut_n;

        assert_eq!(n.shl_round(i, rm), (shifted, o));
        if i < U::ZERO {
            assert!(shifted <= n);
        }
        if i != U::MIN {
            assert_eq!(n.shr_round(-i, rm), (shifted, o));
        }
        assert_eq!(
            i >= U::ZERO || n.divisible_by_power_of_2(u64::exact_from(i.unsigned_abs())),
            o == Equal
        );
        if i < U::ZERO {
            if let Some(m) = shifted.arithmetic_checked_shr(i) {
                assert_eq!(m.cmp(&n), o);
            }
        }

        if o == Equal {
            for rm in exhaustive_rounding_modes() {
                assert_eq!(n.shl_round(i, rm), (shifted, Equal));
            }
        } else {
            assert_panic!(n.shl_round(i, Exact));
        }
    });

    unsigned_rounding_mode_pair_gen::<T>().test_properties(|(n, rm)| {
        assert_eq!(n.shl_round(U::ZERO, rm), (n, Equal));
    });

    signed_rounding_mode_pair_gen::<U>().test_properties(|(i, rm)| {
        assert_eq!(T::ZERO.shl_round(i, rm), (T::ZERO, Equal));
    });
}

fn shl_round_properties_helper_signed_signed<
    T: ArithmeticCheckedShr<U, Output = T>
        + PrimitiveSigned
        + ShlRound<U, Output = T>
        + ShlRoundAssign<U>
        + ShrRound<U, Output = T>,
    U: PrimitiveSigned,
>()
where
    u64: TryFrom<<U as UnsignedAbs>::Output>,
{
    signed_signed_rounding_mode_triple_gen_var_4::<T, U>().test_properties(|(n, i, rm)| {
        let mut mut_n = n;
        let o = mut_n.shl_round_assign(i, rm);
        let shifted = mut_n;

        assert_eq!(n.shl_round(i, rm), (shifted, o));
        if i < U::ZERO {
            assert!(shifted.le_abs(&n));
        }
        if i != U::MIN {
            assert_eq!(n.shr_round(-i, rm), (shifted, o));
        }
        assert_eq!(
            i >= U::ZERO || n.divisible_by_power_of_2(u64::exact_from(i.unsigned_abs())),
            o == Equal
        );
        if i < U::ZERO {
            if let Some(m) = shifted.arithmetic_checked_shr(i) {
                assert_eq!(m.cmp(&n), o);
            }
        }

        if o == Equal {
            for rm in exhaustive_rounding_modes() {
                assert_eq!(n.shl_round(i, rm), (shifted, Equal));
            }
        } else {
            assert_panic!(n.shl_round(i, Exact));
        }
    });

    signed_rounding_mode_pair_gen::<T>().test_properties(|(n, rm)| {
        assert_eq!(n.shl_round(U::ZERO, rm), (n, Equal));
    });

    signed_rounding_mode_pair_gen::<U>().test_properties(|(i, rm)| {
        assert_eq!(T::ZERO.shl_round(i, rm), (T::ZERO, Equal));
    });
}

#[test]
fn shl_round_properties() {
    apply_fn_to_unsigneds_and_signeds!(shl_round_properties_helper_unsigned_signed);
    apply_fn_to_signeds_and_signeds!(shl_round_properties_helper_signed_signed);
}