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#define BOOST_TEST_MODULE LazyPointer
#include <boost/test/unit_test.hpp>
#include <boost/bind.hpp>
#include "intrusivePtrBase.h"
#include "lazyPointer.h"
class Test : public IntrusivePtrBase {
public:
Test(int v) :
val(v)
{
}
const int val;
};
typedef LazyPointer<Test> TestLazyPointer;
static
TestLazyPointer::pointer_type
factory()
{
return new Test(3);
}
static
TestLazyPointer::pointer_type
paramFactory(const std::string & str)
{
return new Test(str.length());
}
BOOST_AUTO_TEST_CASE ( islazy )
{
TestLazyPointer p(boost::bind(&factory));
BOOST_REQUIRE_EQUAL(false, p.hasValue());
Test * t = p.get();
BOOST_REQUIRE(t);
BOOST_REQUIRE_EQUAL(true, p.hasValue());
BOOST_REQUIRE_EQUAL(p, t);
BOOST_REQUIRE_EQUAL(3, t->val);
BOOST_REQUIRE_EQUAL(3, p->val);
}
BOOST_AUTO_TEST_CASE ( preinit )
{
Test * t = new Test(4);
TestLazyPointer p(t);
BOOST_REQUIRE_EQUAL(true, p.hasValue());
BOOST_REQUIRE_EQUAL(p, t);
BOOST_REQUIRE_EQUAL(4, p->val);
}
BOOST_AUTO_TEST_CASE ( reset )
{
Test * t = new Test(4);
TestLazyPointer p(t);
BOOST_REQUIRE_EQUAL(true, p.hasValue());
BOOST_REQUIRE_EQUAL(4, p->val);
p = nullptr;
BOOST_REQUIRE_EQUAL(true, p.hasValue());
BOOST_REQUIRE_EQUAL(true, !p);
p = boost::bind(&factory);
BOOST_REQUIRE_EQUAL(false, p.hasValue());
p.get();
BOOST_REQUIRE_EQUAL(true, p.hasValue());
BOOST_REQUIRE_EQUAL(3, p->val);
}
BOOST_AUTO_TEST_CASE ( nondefault )
{
TestLazyPointer p(boost::bind(¶mFactory, "some string"));
BOOST_REQUIRE_EQUAL(false, p.hasValue());
BOOST_REQUIRE_EQUAL(11, (*p).val);
BOOST_REQUIRE_EQUAL(true, p.hasValue());
}
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