Add benchmark and test for color parser (#3139)

This commit is contained in:
Bart Louwers
2025-01-13 18:27:36 +01:00
committed by GitHub
parent 9f02e29f5f
commit 20f1a03c91
5 changed files with 101 additions and 5 deletions

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@@ -11,6 +11,7 @@ add_library(
${PROJECT_SOURCE_DIR}/benchmark/src/mbgl/benchmark/benchmark.cpp
${PROJECT_SOURCE_DIR}/benchmark/storage/offline_database.benchmark.cpp
${PROJECT_SOURCE_DIR}/benchmark/util/tilecover.benchmark.cpp
${PROJECT_SOURCE_DIR}/benchmark/util/color.benchmark.cpp
)
target_include_directories(

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@@ -0,0 +1,31 @@
#include <benchmark/benchmark.h>
#include <string>
#include <vector>
#include <mbgl/util/color.hpp>
static const std::vector<std::string> testStrings = {"#000000",
"#FFFFFF",
"#FF00FFAA",
"rgba(255, 0, 0, 1.0)",
"rgb(0, 255, 0)",
"blue",
"red",
"invalid-color",
"rgba(255, 255, 255, 0.5)",
"#123"};
namespace {
void ColorParse(benchmark::State& state) {
for (auto _ : state) {
for (const auto& str : testStrings) {
auto result = mbgl::Color::parse(str);
benchmark::DoNotOptimize(result);
}
}
}
}; // namespace
BENCHMARK(ColorParse);

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@@ -15,7 +15,7 @@ static void TileCountBounds(benchmark::State& state) {
auto count = util::tileCount(sanFrancisco, 10);
length += count;
}
(void)length;
benchmark::DoNotOptimize(length);
}
static void TileCoverPitchedViewport(benchmark::State& state) {
@@ -29,7 +29,7 @@ static void TileCoverPitchedViewport(benchmark::State& state) {
auto tiles = util::tileCover(transform.getState(), 8);
length += tiles.size();
}
(void)length;
benchmark::DoNotOptimize(length);
}
static void TileCoverBounds(benchmark::State& state) {
@@ -38,7 +38,7 @@ static void TileCoverBounds(benchmark::State& state) {
auto tiles = util::tileCover(sanFrancisco, 8);
length += tiles.size();
}
(void)length;
benchmark::DoNotOptimize(length);
}
static const auto geomPolygon = Polygon<double>{
@@ -62,7 +62,7 @@ static void TileCoverPolygon(benchmark::State& state) {
auto tiles = util::tileCover(geomPolygon, 8);
length += tiles.size();
}
(void)length;
benchmark::DoNotOptimize(length);
}
static void TileCountPolygon(benchmark::State& state) {
@@ -72,7 +72,7 @@ static void TileCountPolygon(benchmark::State& state) {
auto tiles = util::tileCount(geomPolygon, 16);
length += tiles;
}
(void)length;
benchmark::DoNotOptimize(length);
}
BENCHMARK(TileCountBounds);

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@@ -89,6 +89,7 @@ add_library(
${PROJECT_SOURCE_DIR}/test/util/async_task.test.cpp
${PROJECT_SOURCE_DIR}/test/util/bounding_volumes.test.cpp
${PROJECT_SOURCE_DIR}/test/util/camera.test.cpp
${PROJECT_SOURCE_DIR}/test/util/color.test.cpp
${PROJECT_SOURCE_DIR}/test/util/geo.test.cpp
${PROJECT_SOURCE_DIR}/test/util/grid_index.test.cpp
${PROJECT_SOURCE_DIR}/test/util/hash.test.cpp

63
test/util/color.test.cpp Normal file
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@@ -0,0 +1,63 @@
#include <gtest/gtest.h>
#include <optional>
#include <string>
#include <mbgl/util/color.hpp>
using namespace mbgl;
void logUnexpectedValidResult(const std::string& input, const Color& color) {
std::cerr << "Unexpected valid result for input: " << input << "\n";
std::cerr << "Parsed Color: r = " << color.r << ", g = " << color.g << ", b = " << color.b << ", a = " << color.a
<< "\n";
}
const std::map<std::string, std::optional<Color>> testCases = {
// Valid inputs
{"#000000", Color(0.0f, 0.0f, 0.0f, 1.0f)},
{"#FFFFFF", Color(1.0f, 1.0f, 1.0f, 1.0f)},
{"#FF0000", Color(1.0f, 0.0f, 0.0f, 1.0f)},
{"rgba(255, 0, 0, 1.0)", Color(1.0f, 0.0f, 0.0f, 1.0f)},
{"rgb(0, 255, 0)", Color(0.0f, 1.0f, 0.0f, 1.0f)},
{"blue", Color::blue()},
{"red", Color::red()},
{"rgba(0, 0, 0, 0)", Color(0.0f, 0.0f, 0.0f, 0.0f)},
{"#123", Color(0.067f, 0.133f, 0.2f, 1.0f)}, // Short hex format
{"rgb(-10, 0, 0)", Color(0.0f, 0.0f, 0.0f, 1.0f)}, // Clamped to 0
{"rgba(300, 0, 0, 1.0)", Color(1.0f, 0.0f, 0.0f, 1.0f)}, // Clamped to 1
// {"#GGGGGG", Color(0.0f, 0.0f, 0.0f, 1.0f)}, // Treated as fallback black
// not supported right now
// {"#0F0F", Color(0.0f, 1.0f, 0.0f, 1.0f)},
// {"#123F", Color(
// static_cast<float>(0x1) / (0xF + 1),
// static_cast<float>(0x2) / (0xF + 1),
// static_cast<float>(0x3) / (0xF + 1),
// static_cast<float>(0x4) / (0xF + 1)
// )},
// Invalid inputs
{"not-a-color", std::nullopt},
{"", std::nullopt},
};
TEST(ColorParse, AllCases) {
constexpr float absError = 0.02f;
for (const auto& [input, expectedResult] : testCases) {
auto result = Color::parse(input);
if (expectedResult.has_value()) {
// Valid case: Check the values
ASSERT_TRUE(result.has_value());
EXPECT_NEAR(result->r, expectedResult->r, absError);
EXPECT_NEAR(result->g, expectedResult->g, absError);
EXPECT_NEAR(result->b, expectedResult->b, absError);
EXPECT_NEAR(result->a, expectedResult->a, absError);
} else {
// Invalid case: Ensure no value is returned
if (result.has_value()) {
logUnexpectedValidResult(input, *result);
}
EXPECT_FALSE(result.has_value());
}
}
}