maybe_ref_test.cc File Reference

#include "boost/test/unit_test.hpp"
#include "cetlib/maybe_ref.h"

Go to the source code of this file.

Macros
#define	BOOST_TEST_MODULE   (maybe_ref test)

Functions
	BOOST_AUTO_TEST_CASE (default_behavior)
	BOOST_AUTO_TEST_CASE (copy_behavior)
	BOOST_AUTO_TEST_CASE (const_behavior)
	BOOST_AUTO_TEST_CASE (reseat_behavior)

Macro Definition Documentation

#define BOOST_TEST_MODULE   (maybe_ref test)

Definition at line 1 of file maybe_ref_test.cc.

Function Documentation

BOOST_AUTO_TEST_CASE

(

default_behavior

)

Definition at line 8 of file maybe_ref_test.cc.

{
  {
    typedef int T;
    T x = 16;
    cet::maybe_ref<T> m(x);
    BOOST_TEST(m.isValid());
    BOOST_TEST(m.ref() == 16);
    T& r = m.ref();
    BOOST_TEST(r == x);
    BOOST_TEST(&r == &x);
    T const& r2 = m.ref();
    BOOST_TEST(m.ref() == 16);
    BOOST_TEST(r2 == x);
    BOOST_TEST(&r2 == &x);
  }
  {
    typedef double T;
    cet::maybe_ref<T> m;
    BOOST_TEST(!m.isValid());
    BOOST_CHECK_THROW(m.ref(), std::logic_error);
  }
}

BOOST_AUTO_TEST_CASE

(

copy_behavior

)

Definition at line 32 of file maybe_ref_test.cc.

{
  {
    typedef unsigned T;
    T x = 16u;
    cet::maybe_ref<T> m(x);
    BOOST_TEST(m.isValid());
    BOOST_TEST(m.ref() == 16u);
    cet::maybe_ref<T> m2 = m;
    BOOST_TEST(m2.isValid());
    BOOST_TEST(m2.ref() == 16u);
  }
  {
    typedef long T;
    T x = 16;
    cet::maybe_ref<T> m(x);
    BOOST_TEST(m.isValid());
    BOOST_TEST(m.ref() == 16);
    cet::maybe_ref<T> m2;
    BOOST_TEST(!m2.isValid());
    m2 = m;
    BOOST_TEST(m2.isValid());
    BOOST_TEST(m2.ref() == 16);
  }
}

BOOST_AUTO_TEST_CASE

(

const_behavior

)

Definition at line 58 of file maybe_ref_test.cc.

{
  {
    typedef int const T;
    T x = 16;
    cet::maybe_ref<T> m(x);
    BOOST_TEST(m.isValid());
    T& r = m.ref();
    BOOST_TEST(r == x);
    BOOST_TEST(&r == &x);
  }
}

BOOST_AUTO_TEST_CASE

(

reseat_behavior

)

Definition at line 71 of file maybe_ref_test.cc.

{
  {
    typedef int const T;
    T x = 16;
    T y = 48;
    cet::maybe_ref<T> m(x);
    BOOST_TEST(m.isValid());
    BOOST_TEST(m.ref() == 16);
    BOOST_TEST(&m.ref() == &x);
    m.reseat();
    BOOST_TEST(!m.isValid());
    m.reseat(y);
    BOOST_TEST(m.isValid());
    BOOST_TEST(m.ref() == 48);
    BOOST_TEST(&m.ref() == &y);
  }
}