libclangmm/tests/code_complete_results_test.cc

#include "clangmm.h"
#include <cassert>
#include <regex>
#include <string>

int main() {
  std::string tests_path = LIBCLANGMM_TESTS_PATH;
  std::string path(tests_path + "/case/main.cpp");

  std::vector<std::string> arguments;
  auto clang_version_string = clangmm::to_string(clang_getClangVersion());
  const static std::regex clang_version_regex("^[A-Za-z ]+([0-9.]+).*$");
  std::smatch sm;
  if(std::regex_match(clang_version_string, sm, clang_version_regex)) {
    auto clang_version = sm[1].str();
    arguments.emplace_back("-I/usr/lib/clang/" + clang_version + "/include");
    arguments.emplace_back("-I/usr/lib64/clang/" + clang_version + "/include"); // For Fedora
  }

  auto index = std::make_shared<clangmm::Index>(0, 0);
  clangmm::TranslationUnit tu(index, path, arguments);

  std::string buffer = "#include <string>\n"
                       "int main(int argc, char *argv[]) {\n"
                       "std::string str;\n"
                       "str.\n"
                       "return 0\n"
                       "}";

  tu.reparse(buffer);
  auto results = tu.get_code_completions(buffer, 4, 5);

  bool substr_found = false;
  for(unsigned c = 0; c < results.size(); c++) {
    if(results.get(c).get_chunks()[1].text == "substr") {
      substr_found = true;
      break;
    }
  }
  assert(substr_found);
}