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// Copyright 2020 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <gtest/gtest.h>
#include "dawn/common/TypedInteger.h"
#include "dawn/common/ityp_array.h"
namespace dawn {
namespace {
class ITypArrayTest : public testing::Test {
protected:
using Key = TypedInteger<struct KeyT, uint32_t>;
using Val = TypedInteger<struct ValT, uint32_t>;
using Array = ityp::array<Key, Val, 10>;
// Test that the expected array methods can be constexpr
struct ConstexprTest {
static constexpr Array kArr = {Val(0), Val(1), Val(2), Val(3), Val(4),
Val(5), Val(6), Val(7), Val(8), Val(9)};
static_assert(kArr[Key(3)] == Val(3));
static_assert(kArr.at(Key(7)) == Val(7));
static_assert(kArr.size() == Key(10));
};
};
// Test that values can be set at an index and retrieved from the same index.
TEST_F(ITypArrayTest, Indexing) {
Array arr;
{
arr[Key(2)] = Val(5);
arr[Key(1)] = Val(9);
arr[Key(9)] = Val(2);
ASSERT_EQ(arr[Key(2)], Val(5));
ASSERT_EQ(arr[Key(1)], Val(9));
ASSERT_EQ(arr[Key(9)], Val(2));
}
{
arr.at(Key(4)) = Val(5);
arr.at(Key(3)) = Val(8);
arr.at(Key(1)) = Val(7);
ASSERT_EQ(arr.at(Key(4)), Val(5));
ASSERT_EQ(arr.at(Key(3)), Val(8));
ASSERT_EQ(arr.at(Key(1)), Val(7));
}
}
// Test that the array can be iterated in order with a range-based for loop
TEST_F(ITypArrayTest, RangeBasedIteration) {
Array arr;
// Assign in a non-const range-based for loop
uint32_t i = 0;
for (Val& val : arr) {
val = Val(i);
}
// Check values in a const range-based for loop
i = 0;
for (Val val : static_cast<const Array&>(arr)) {
ASSERT_EQ(val, arr[Key(i++)]);
}
}
// Test that begin/end/front/back/data return pointers/references to the correct elements.
TEST_F(ITypArrayTest, BeginEndFrontBackData) {
Array arr;
// non-const versions
ASSERT_EQ(&arr.front(), &arr[Key(0)]);
ASSERT_EQ(&arr.back(), &arr[Key(9)]);
ASSERT_EQ(arr.data(), &arr[Key(0)]);
// const versions
const Array& constArr = arr;
ASSERT_EQ(&constArr.front(), &constArr[Key(0)]);
ASSERT_EQ(&constArr.back(), &constArr[Key(9)]);
ASSERT_EQ(constArr.data(), &constArr[Key(0)]);
}
} // anonymous namespace
} // namespace dawn