void runTest() override
{
FunctionTestsHelpers::BigData bigData;
{
beginTest ("Functions");
std::function<void(int&)> f1 (FunctionTestsHelpers::incrementArgument);
auto x = 0;
f1 (x);
expectEquals (x, 1);
std::function<double(double, double)> f2 (FunctionTestsHelpers::multiply);
expectEquals (6.0, f2 (2.0, 3.0));
}
{
beginTest ("Function objects");
std::function<int(int)> f1 = FunctionTestsHelpers::FunctionObject();
expectEquals (f1 (5), FunctionTestsHelpers::BigData::bigDataSum + 5);
}
{
beginTest ("Lambdas");
std::function<int()> fStack ([] { return 3; });
expectEquals (fStack(), 3);
std::function<int()> fHeap ([=] { return bigData.sum(); });
expectEquals (fHeap(), FunctionTestsHelpers::BigData::bigDataSum);
}
{
beginTest ("Boolean");
std::function<void(int&)> f1;
if (f1)
expect (false);
std::function<int()> f2 ([]() { return 3; });
if (! f2)
expect (false);
}
std::function<int()> fEmpty;
std::function<int()> fStack ([] { return 3; });
std::function<int()> fHeap ([=] { return bigData.sum(); });
{
beginTest ("copy constructor");
std::function<int()> f1 (fStack);
expectEquals (f1(), 3);
std::function<int()> f2 (fHeap);
expectEquals (f2(), FunctionTestsHelpers::BigData::bigDataSum);
std::function<int()> f3 (fEmpty);
if (f3)
expect (false);
}
{
beginTest ("assignment");
std::function<int()> f1;
f1 = fStack;
expectEquals (f1(), 3);
std::function<int()> f2;
f2 = fHeap;
expectEquals (f2(), FunctionTestsHelpers::BigData::bigDataSum);
f1 = fHeap;
expectEquals (f1(), FunctionTestsHelpers::BigData::bigDataSum);
f2 = fStack;
expectEquals (f2(), 3);
f1 = fEmpty;
if (f1)
expect (false);
}
{
beginTest ("move constructor");
ScopedPointer<std::function<int()>> fStackTmp (new std::function<int()> (fStack));
std::function<int()> f1 (static_cast<std::function<int()>&&> (*fStackTmp));
fStackTmp.reset();
expectEquals (f1(), 3);
ScopedPointer<std::function<int()>> fHeapTmp (new std::function<int()> (fHeap));
std::function<int()> f2 (static_cast<std::function<int()>&&> (*fHeapTmp));
if (*fHeapTmp)
expect (false);
fHeapTmp.reset();
expectEquals (f2(), FunctionTestsHelpers::BigData::bigDataSum);
ScopedPointer<std::function<int()>> fEmptyTmp (new std::function<int()>());
std::function<int()> f3 (static_cast<std::function<int()>&&> (*fEmptyTmp));
fEmptyTmp.reset();
if (f3)
expect (false);
}
{
beginTest ("move assignment");
std::function<int()> f1 (fHeap);
ScopedPointer<std::function<int()>> fStackTmp (new std::function<int()> (fStack));
f1 = static_cast<std::function<int()>&&> (*fStackTmp);
fStackTmp.reset();
expectEquals (f1(), 3);
std::function<int()> f2 (fStack);
ScopedPointer<std::function<int()>> fHeapTmp (new std::function<int()> (fHeap));
f2 = static_cast<std::function<int()>&&> (*fHeapTmp);
if (*fHeapTmp)
expect (false);
fHeapTmp.reset();
expectEquals (f2(), FunctionTestsHelpers::BigData::bigDataSum);
std::function<int()> f3 (fHeap);
ScopedPointer<std::function<int()>> fEmptyTmp (new std::function<int()>());
f3 = static_cast<std::function<int()>&&> (*fEmptyTmp);
fEmptyTmp.reset();
if (f3)
expect (false);
}
{
beginTest ("nullptr");
std::function<int()> f1 (nullptr);
if (f1)
expect (false);
std::function<int()> f2 ([]() { return 11; });
f2 = nullptr;
if (f2)
expect (false);
}
{
beginTest ("Swap");
std::function<int()> f1;
std::function<int()> f2 (fStack);
f2.swap (f1);
expectEquals (f1(), 3);
if (f2)
expect (false);
std::function<int()> f3 (fHeap);
f3.swap (f1);
expectEquals (f3(), 3);
expectEquals (f1(), FunctionTestsHelpers::BigData::bigDataSum);
}
}
