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#include <cxxtest/TestSuite.h>
#include "common/ptr.h"
class PtrTestSuite : public CxxTest::TestSuite {
public:
// A simple class which keeps track of all its instances
class InstanceCountingClass {
public:
static int count;
InstanceCountingClass() { count++; }
InstanceCountingClass(const InstanceCountingClass&) { count++; }
~InstanceCountingClass() { count--; }
};
void test_deletion() {
TS_ASSERT_EQUALS(InstanceCountingClass::count, 0);
{
Common::SharedPtr<InstanceCountingClass> p1(new InstanceCountingClass());
TS_ASSERT_EQUALS(InstanceCountingClass::count, 1);
Common::ScopedPtr<InstanceCountingClass> p2(new InstanceCountingClass());
TS_ASSERT_EQUALS(InstanceCountingClass::count, 2);
}
TS_ASSERT_EQUALS(InstanceCountingClass::count, 0);
}
void test_assign() {
Common::SharedPtr<int> p1(new int(1));
TS_ASSERT(p1.unique());
TS_ASSERT_EQUALS(*p1, 1);
{
Common::SharedPtr<int> p2 = p1;
TS_ASSERT(!p1.unique());
TS_ASSERT_EQUALS(p1.refCount(), p2.refCount());
TS_ASSERT_EQUALS(p1.refCount(), 2);
TS_ASSERT_EQUALS(p1, p2);
TS_ASSERT_EQUALS(*p2, 1);
{
Common::SharedPtr<int> p3;
p3 = p2;
TS_ASSERT_EQUALS(p3, p2);
TS_ASSERT_EQUALS(p3, p1);
TS_ASSERT_EQUALS(p1.refCount(), 3);
TS_ASSERT_EQUALS(*p3, 1);
*p3 = 0;
TS_ASSERT_EQUALS(*p3, 0);
}
TS_ASSERT_EQUALS(*p2, 0);
TS_ASSERT_EQUALS(p1.refCount(), 2);
}
TS_ASSERT_EQUALS(*p1, 0);
TS_ASSERT(p1.unique());
}
template<class T>
struct Deleter {
bool *test;
void operator()(T *ptr) { *test = true; delete ptr; }
};
void test_deleter() {
Deleter<int> myDeleter;
myDeleter.test = new bool(false);
{
Common::SharedPtr<int> p(new int(1), myDeleter);
}
TS_ASSERT_EQUALS(*myDeleter.test, true);
delete myDeleter.test;
}
void test_compare() {
Common::SharedPtr<int> p1(new int(1));
Common::SharedPtr<int> p2;
TS_ASSERT(p1);
TS_ASSERT(!p2);
TS_ASSERT(p1 != 0);
TS_ASSERT(p2 == 0);
p1.reset();
TS_ASSERT(!p1);
}
struct A {
int a;
};
struct B : public A {
int b;
};
void test_cast() {
Common::SharedPtr<B> b(new B);
Common::SharedPtr<A> a(b);
a = b;
}
};
int PtrTestSuite::InstanceCountingClass::count = 0;
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