Method Copyable

tests/unittests/unittests.cpp:186–186

struct Copyable {
	Copyable(int id) : copied(false), id(id) { }
	Copyable(Copyable const& o) : copied(true), id(o.id) { }
	void operator=(Copyable const& o) { copied = true; id = o.id; }
	bool copied;