__anonymous

auto allocator = TestAllocator();
{
    const foo = Unique!(Struct, TestAllocator*)(&allocator, 5);
    foo.twice.shouldEqual(10);
    allocator.numAllocations.shouldEqual(1);
    Struct.numStructs.shouldEqual(1);
}

Struct.numStructs.shouldEqual(0);

import std.experimental.allocator.mallocator: Mallocator;
{
    const foo = Unique!(Struct, Mallocator)(5);
    foo.twice.shouldEqual(10);
    Struct.numStructs.shouldEqual(1);
}

Struct.numStructs.shouldEqual(0);