cpp_src = self.create_file('hello.cpp', contents="""
#include <iostream>

int main() {
  std::cout << "hello, world!" << std::endl;
}
""")

    cpp_dir = os.path.dirname(cpp_src)

    cpp_request = CppObjectsRequest(
      sources=CppSources(
        root_dir=cpp_dir,
        file_paths=['hello.c'],
      ),
      dir_path=cpp_dir,
    )