maybeCastObj_t.cc File Reference

#include "boost/test/unit_test.hpp"
#include <string>
#include "canvas/Persistency/Common/detail/maybeCastObj.h"

Go to the source code of this file.

Macros
#define	BOOST_TEST_MODULE   (Tests of maybeCastObj interface)

Functions
	BOOST_AUTO_TEST_CASE (identical_types)
	BOOST_AUTO_TEST_CASE (mismatched_types)
	BOOST_AUTO_TEST_CASE (user_types)
	BOOST_AUTO_TEST_CASE (user_type_variables)

Macro Definition Documentation

#define BOOST_TEST_MODULE   (Tests of maybeCastObj interface)

Definition at line 1 of file maybeCastObj_t.cc.

Function Documentation

BOOST_AUTO_TEST_CASE

(

identical_types

)

Definition at line 74 of file maybeCastObj_t.cc.

{
  // Primitive types
  BOOST_TEST_REQUIRE((runUpcastAllowed<int, int>()));
  BOOST_TEST_REQUIRE((runUpcastAllowed<double, double>()));

  // Std class type
  BOOST_TEST_REQUIRE((runUpcastAllowed<std::string, std::string>()));

  // User class types
  BOOST_TEST_REQUIRE((runUpcastAllowed<MCBase, MCBase>()));
  BOOST_TEST_REQUIRE((runUpcastAllowed<MCConcrete, MCConcrete>()));
}

BOOST_AUTO_TEST_CASE

(

mismatched_types

)

Definition at line 88 of file maybeCastObj_t.cc.

{
  // Different non-class types are never castable
  BOOST_TEST_REQUIRE(!(runUpcastAllowed<int, double>()));

  // Can never cast primitive->class or class->primitive
  BOOST_TEST_REQUIRE((!runUpcastAllowed<double, std::string>()));
  BOOST_TEST_REQUIRE((!runUpcastAllowed<std::string, char>()));

  // Should not be able to cast from one user hierarchy to another
  BOOST_TEST_REQUIRE((!runUpcastAllowed<MCConcrete, MCOtherBase>()));
}

BOOST_AUTO_TEST_CASE

(

user_types

)

Definition at line 101 of file maybeCastObj_t.cc.

{
  // NB: In all of the below, tests of valid upcasts fail on
  // Root implementation. *Possibly* due to lack of dictionary?
  // Cast from base <-> concrete (non-virtual)
  BOOST_TEST_REQUIRE((!runUpcastAllowed<MCBase, MCConcrete>()));
  BOOST_TEST_REQUIRE((runUpcastAllowed<MCConcrete, MCBase>()));

  // Cast from raw base <-> concrete (virtual)
  BOOST_TEST_REQUIRE((!runUpcastAllowed<MCBaseVirtual, MCConcreteVirtual_A>()));
  BOOST_TEST_REQUIRE((runUpcastAllowed<MCConcreteVirtual_A, MCBaseVirtual>()));

  // Across hierarchy
  BOOST_TEST_REQUIRE(
    (!runUpcastAllowed<MCConcreteVirtual_B, MCConcreteVirtual_A>()));

  // Between levels
  BOOST_TEST_REQUIRE(
    (runUpcastAllowed<MCConcreteVirtual_C, MCConcreteVirtual_B>()));
  BOOST_TEST_REQUIRE((runUpcastAllowed<MCConcreteVirtual_C, MCConcrete>()));

  // Multiple
  BOOST_TEST_REQUIRE((runUpcastAllowed<MCConcreteMultiple, MCBase>()));
  BOOST_TEST_REQUIRE((runUpcastAllowed<MCConcreteMultiple, MCOtherBase>()));
}

BOOST_AUTO_TEST_CASE

(

user_type_variables

)

Definition at line 127 of file maybeCastObj_t.cc.

{
  // Non Virtual
  MCConcrete actualConcrete{};
  MCBase& refToBase = actualConcrete;
  BOOST_TEST_REQUIRE(
    (!art::detail::upcastAllowed(typeid(refToBase), typeid(MCConcrete))));

  // Virtual
  MCConcreteVirtual_A actualConcreteVirtual{};
  MCBaseVirtual& refToBaseVirtual = actualConcreteVirtual;
  BOOST_TEST_REQUIRE((art::detail::upcastAllowed(typeid(refToBaseVirtual),
                                                 typeid(MCConcreteVirtual_A))));
  BOOST_TEST_REQUIRE((!art::detail::upcastAllowed(
    typeid(refToBaseVirtual), typeid(MCConcreteVirtual_B))));
}