#include <limits>
#include <string>
#include <vector>

#include "Utilities/Testing/interface/CppUnit_testdriver.icpp"
#include "cppunit/extensions/HelperMacros.h"

#include "DataFormats/Common/interface/traits.h"

class TestTraits : public CppUnit::TestFixture {
  CPPUNIT_TEST_SUITE(TestTraits);
  CPPUNIT_TEST(vector_is_happy);
  CPPUNIT_TEST(string_is_happy);
  CPPUNIT_TEST_SUITE_END();

public:
  TestTraits() {}
  ~TestTraits() {}
  void setUp() {}
  void tearDown() {}

  void vector_is_happy();
  void string_is_happy();

private:
};

CPPUNIT_TEST_SUITE_REGISTRATION(TestTraits);

void TestTraits::vector_is_happy() {
  typedef std::vector<double>::size_type key_type;
  CPPUNIT_ASSERT(edm::key_traits<key_type>::value == std::numeric_limits<key_type>::max());
  CPPUNIT_ASSERT(edm::key_traits<key_type>::value == static_cast<key_type>(-1));
}

void TestTraits::string_is_happy() {
  std::string const& r = edm::key_traits<std::string>::value;
  CPPUNIT_ASSERT(r.size() == 1);
  CPPUNIT_ASSERT(r[0] == '\a');
}