gaming-core/tests/UniquePointerTests.cpp

#include "tests/UniquePointerTests.h"
#include "tests/Test.h"
#include "utils/UniquePointer.h"

struct B {
    static int instances;

    B() {
        instances++;
    }

    ~B() {
        instances--;
    }
};

int B::instances = 0;

static void testDestroy(Test& test) {
    {
        UniquePointer<B> p(new B());
        test.checkEqual(1, B::instances, "one instance");
    }
    test.checkEqual(0, B::instances, "instance is destroyed");
}

static void testMoveDestroys(Test& test) {
    {
        UniquePointer<B> p1(new B());
        UniquePointer<B> p2(new B());
        test.checkEqual(2, B::instances, "two instances");
        p1 = std::move(p2);
        test.checkEqual(1, B::instances, "one after move");
    }
    test.checkEqual(0, B::instances,
                    "everything destroyed correctly after move");
}

void UniquePointerTests::test() {
    Test test("UniquePointer");
    testDestroy(test);
    testMoveDestroys(test);
    test.finalize();
}