在Catch2中指定外部文本文件路径的最佳方法

#define CATCH_CONFIG_EXTERNAL_INTERFACES
#define CATCH_CONFIG_FAST_COMPILE
#include <catch2/catch.hpp>

TEST_CASE("readFile reads content from external file") {
    SECTION("Read from file in current directory") {
        std::string filePath = "./test.txt";
        std::string content = readFile(filePath);
        // Perform assertions on the content
        // ...
    }

    SECTION("Read from file in subdirectory") {
        std::string filePath = "./subdir/test.txt";
        std::string content = readFile(filePath);
        // Perform assertions on the content
        // ...
    }
}