diff options
Diffstat (limited to 'Tests')
| -rw-r--r-- | Tests/AK/TestUFixedBigInt.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Tests/AK/TestUFixedBigInt.cpp b/Tests/AK/TestUFixedBigInt.cpp index 258beb06bf..1c0799df70 100644 --- a/Tests/AK/TestUFixedBigInt.cpp +++ b/Tests/AK/TestUFixedBigInt.cpp @@ -88,6 +88,21 @@ TEST_CASE(div_mod) } } +TEST_CASE(shifts) +{ + u128 val { 0x1234ULL }; + EXPECT_EQ(val << 1u, u128(0x2468ull)); + EXPECT_EQ(val << 4u, u128(0x12340ull)); + EXPECT_EQ(val << 64u, u128(0ull, 0x1234ull)); +} + +TEST_CASE(constexpr_truncae) +{ + static constexpr u256 wide = u256(u128 { 0x8a4b08d32f8b8e48ULL, 0x8459322f67b8e26dULL }, u128 { 0xeea82af4312d1931ULL, 0x654fb5cfe82dbd58ULL }); + static constexpr u64 val = static_cast<u64>(wide); + EXPECT_EQ(val, 0x8a4b08d32f8b8e48ULL); +} + TEST_CASE(mod_hardcoded) { EXPECT_EQ(u256(u128 { 0x8a4b08d32f8b8e48ULL, 0x8459322f67b8e26dULL }, u128 { 0xeea82af4312d1931ULL, 0x654fb5cfe82dbd58ULL }) % u256(u128 { 0x40a58652868d5d66ULL, 0x81d674bf7d6d6861ULL }, u128 { 0xa8314900e6188a82ULL, 0xc273ca947237b4aaULL }), u256(u128 { 0x8a4b08d32f8b8e48ULL, 0x8459322f67b8e26dULL }, u128 { 0xeea82af4312d1931ULL, 0x654fb5cfe82dbd58ULL })); |