#include "test_precomp.hpp"#include "../src/util/observer_ptr.hpp"/** * Verifies that assigning `nullptr` and a nonzero value to a `cvv::util::ObserverPtr<Int>` * (from /src/util/observer_ptr.hpp) work and that `isNull()` and `getPtr()` return the correct result. */usingcvv::util::ObserverPtr;TEST(ObserverPtrTest,ConstructionAssignment){ObserverPtr<int>ptr=nullptr;EXPECT_TRUE(ptr.isNull());intx=3;ptr=x;EXPECT_FALSE(ptr.isNull());EXPECT_EQ(&x,ptr.getPtr());}