mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-11 13:36:13 +03:00
This is an enum-like type that works with arbitrary sized storage > u64, which is the limit for a regular enum class - which limits it to 64 members when needing bit field behavior. Co-authored-by: Ali Mohammad Pur <mpfard@serenityos.org>
121 lines
3.0 KiB
C++
121 lines
3.0 KiB
C++
/*
|
|
* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibTest/TestCase.h>
|
|
|
|
#include <AK/ArbitrarySizedEnum.h>
|
|
#include <AK/UFixedBigInt.h>
|
|
|
|
AK_MAKE_ARBITRARY_SIZED_ENUM(TestEnum, u8,
|
|
Foo = TestEnum(1) << 0,
|
|
Bar = TestEnum(1) << 1,
|
|
Baz = TestEnum(1) << 2);
|
|
|
|
AK_MAKE_ARBITRARY_SIZED_ENUM(BigIntTestEnum, u128,
|
|
Foo = BigIntTestEnum(1u) << 127u);
|
|
|
|
TEST_CASE(constructor)
|
|
{
|
|
{
|
|
constexpr TestEnum::Type test;
|
|
static_assert(test.value() == 0);
|
|
}
|
|
{
|
|
constexpr TestEnum::Type test { TestEnum::Foo | TestEnum::Baz };
|
|
static_assert(test.value() == 0b101);
|
|
}
|
|
{
|
|
constexpr BigIntTestEnum::Type test { BigIntTestEnum::Foo };
|
|
static_assert(test.value() == u128(1u) << 127u);
|
|
}
|
|
}
|
|
|
|
TEST_CASE(bitwise_or)
|
|
{
|
|
{
|
|
TestEnum::Type test;
|
|
EXPECT_EQ(test.value(), 0);
|
|
test |= TestEnum::Foo;
|
|
EXPECT_EQ(test.value(), 0b001);
|
|
test |= TestEnum::Bar;
|
|
EXPECT_EQ(test.value(), 0b011);
|
|
test |= TestEnum::Baz;
|
|
EXPECT_EQ(test.value(), 0b111);
|
|
}
|
|
{
|
|
BigIntTestEnum::Type test;
|
|
EXPECT_EQ(test.value(), 0u);
|
|
test |= BigIntTestEnum::Foo;
|
|
EXPECT_EQ(test.value(), u128(1u) << 127u);
|
|
}
|
|
}
|
|
|
|
TEST_CASE(bitwise_and)
|
|
{
|
|
{
|
|
TestEnum::Type test { 0b111 };
|
|
EXPECT_EQ(test.value(), 0b111);
|
|
test &= TestEnum::Foo;
|
|
EXPECT_EQ(test.value(), 0b001);
|
|
}
|
|
{
|
|
BigIntTestEnum::Type test { u128(1u) << 127u | u128(1u) << 126u };
|
|
EXPECT_EQ(test.value(), u128(1u) << 127u | u128(1u) << 126u);
|
|
test &= BigIntTestEnum::Foo;
|
|
EXPECT_EQ(test.value(), u128(1u) << 127u);
|
|
}
|
|
}
|
|
|
|
TEST_CASE(bitwise_xor)
|
|
{
|
|
{
|
|
TestEnum::Type test { 0b111 };
|
|
EXPECT_EQ(test.value(), 0b111);
|
|
test ^= TestEnum::Foo;
|
|
EXPECT_EQ(test.value(), 0b110);
|
|
}
|
|
{
|
|
BigIntTestEnum::Type test { u128(1u) << 127u | 1u };
|
|
EXPECT_EQ(test.value(), u128(1u) << 127u | 1u);
|
|
test ^= BigIntTestEnum::Foo;
|
|
EXPECT_EQ(test.value(), 1u);
|
|
}
|
|
}
|
|
|
|
TEST_CASE(has_flag)
|
|
{
|
|
{
|
|
TestEnum::Type test;
|
|
test |= TestEnum::Foo;
|
|
EXPECT(test.has_flag(TestEnum::Foo));
|
|
EXPECT(!test.has_flag(TestEnum::Bar));
|
|
EXPECT(!test.has_flag(TestEnum::Baz));
|
|
EXPECT(!test.has_flag(TestEnum::Foo | TestEnum::Bar | TestEnum::Baz));
|
|
}
|
|
{
|
|
BigIntTestEnum::Type test;
|
|
test |= BigIntTestEnum::Foo;
|
|
EXPECT(test.has_flag(BigIntTestEnum::Foo));
|
|
}
|
|
}
|
|
|
|
TEST_CASE(has_any_flag)
|
|
{
|
|
{
|
|
TestEnum::Type test;
|
|
test |= TestEnum::Foo;
|
|
EXPECT(test.has_any_flag(TestEnum::Foo));
|
|
EXPECT(!test.has_any_flag(TestEnum::Bar));
|
|
EXPECT(!test.has_any_flag(TestEnum::Baz));
|
|
EXPECT(test.has_any_flag(TestEnum::Foo | TestEnum::Bar | TestEnum::Baz));
|
|
}
|
|
{
|
|
BigIntTestEnum::Type test;
|
|
test |= BigIntTestEnum::Foo;
|
|
EXPECT(test.has_any_flag(BigIntTestEnum::Foo));
|
|
}
|
|
}
|