// Copyright 2026 The Dawn & Tint Authors
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#include <gtest/gtest.h>

#include <algorithm>
#include <array>
#include <string_view>

#include "src/dawn/common/DRMUtils.h"

namespace dawn {
namespace {

struct RenderNodeCandidate {
    std::string_view name;
    bool isCharacterDevice;
    uint64_t major;
    uint64_t minor;
};

TEST(DRMUtilsTests, SelectsRenderNodeMatchingVulkanDevice) {
    constexpr uint64_t kDRMMajor = 226;
    constexpr uint64_t kNvidiaRenderMinor = 128;
    constexpr uint64_t kIntelRenderMinor = 129;
    constexpr std::array<RenderNodeCandidate, 7> kCandidates = {{
        {"card2", true, kDRMMajor, kIntelRenderMinor},
        {"renderD", true, kDRMMajor, kIntelRenderMinor},
        {"renderD129x", true, kDRMMajor, kIntelRenderMinor},
        {"renderD129", false, kDRMMajor, kIntelRenderMinor},
        {"renderD129", true, 1, kIntelRenderMinor},
        {"renderD128", true, kDRMMajor, kNvidiaRenderMinor},
        {"renderD129", true, kDRMMajor, kIntelRenderMinor},
    }};

    auto matchesIntel = [](const RenderNodeCandidate& candidate) {
        return IsMatchingDRMRenderNode(candidate.name, candidate.isCharacterDevice, candidate.major,
                                       candidate.minor, kDRMMajor, kIntelRenderMinor);
    };

    auto matchingNode = std::ranges::find_if(kCandidates, matchesIntel);
    ASSERT_NE(matchingNode, kCandidates.end());
    EXPECT_EQ(matchingNode->name, "renderD129");
    EXPECT_EQ(std::ranges::count_if(kCandidates, matchesIntel), 1);
}

}  // anonymous namespace
}  // namespace dawn