ladybird/Tests/AK/TestArray.cpp

58 lines
1.3 KiB
C++

/*
* Copyright (c) 2020, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/Array.h>
static constexpr int constexpr_sum(ReadonlySpan<int> const span)
{
int sum = 0;
for (auto value : span)
sum += value;
return sum;
}
TEST_CASE(compile_time_constructible)
{
constexpr Array array = { 0, 1, 2, 3 };
static_assert(array.size() == 4);
}
TEST_CASE(compile_time_iterable)
{
constexpr Array<int, 8> array = { 0, 1, 2, 3, 4, 5, 6, 7 };
static_assert(constexpr_sum(array) == 28);
}
TEST_CASE(contains_slow)
{
constexpr Array<int, 8> array = { 0, 1, 2, 3, 4, 5, 6, 7 };
EXPECT(array.contains_slow(0));
EXPECT(array.contains_slow(4));
EXPECT(array.contains_slow(7));
EXPECT(!array.contains_slow(42));
}
TEST_CASE(first_index_of)
{
constexpr Array<int, 8> array = { 0, 1, 2, 3, 4, 5, 6, 7 };
EXPECT(array.first_index_of(0) == 0u);
EXPECT(array.first_index_of(4) == 4u);
EXPECT(array.first_index_of(7) == 7u);
EXPECT(!array.first_index_of(42).has_value());
}
TEST_CASE(to_array)
{
constexpr auto array = to_array<u8>({ 0, 2, 1 });
static_assert(array.size() == 3);
static_assert(array[0] == 0);
static_assert(array[1] == 2);
static_assert(array[2] == 1);
}