/*
 * libfud
 * Copyright 2024 Dominick Allen
 *
 * 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 "fud_array.hpp"
#include "fud_span.hpp"

#include "gtest/gtest.h"

namespace fud {

TEST(SpanTest, MutableSpanTest)
{
    Array<int, 4> data{1, 2, 3, 4};
    auto span = Span<int, 4>::make(data);
    for (auto& elt : span) {
        elt *= 2;
    }

    const Array<int, 4> expected{2, 4, 6, 8};
    EXPECT_EQ(data, expected);

    const int* innerImmutable = span.data();
    EXPECT_EQ(*innerImmutable, expected[0]);
}

TEST(SpanTest, ConstSpanTest)
{
    const Array<int, 4> data{1, 2, 3, 4};
    auto span = Span<int const, 4>::make(data);

    int sum = 0;
    for (const auto& elt : span) {
        sum += elt;
    }
    EXPECT_EQ(sum, 4 * 5 / 2);
}

} // namespace fud