| // Copyright 2020 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <gtest/gtest.h> |
| |
| #include "dawn/common/TypedInteger.h" |
| #include "dawn/common/ityp_array.h" |
| |
| 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)]); |
| } |