Method is

test/test.cpp:115–128

//////////////////////////////////////////////////////////////////////////

///////////////////////////////////////////////////////////////////////////////
void UnitTest::is(bool actual, bool expected, const std::string& name, bool expfail /* = false */) {
  ++_counter;
  bool success = (actual == expected);

  if (success and !expfail) {
    ++_passed;
    std::cout << green("ok") << " " << _counter << " - " << name << '\n';
  } else {
    if (success == expfail) ++_failed;
    std::cout << red("not ok") << " " << _counter << " - " << name
              << (expfail ? (success ? " # FIXED" : " # TODO") : "") << "\n# expected: " << expected
              << "\n#      got: " << actual << '\n';
  }
}

///////////////////////////////////////////////////////////////////////////////
void UnitTest::is(size_t actual, size_t expected, const std::string& name,