Never unhook .node modules

[cspotcode]

Native .node modules cannot be loaded more than once.

require('./some-lib.node');
delete require('module')._cache[<some-lib's module ID>];
require('./some-lib.node');
// Error: Module did not self-register.

Mockery will have to cache native modules no matter what, so that they're never loaded more than once. They can still be substituted and mocked. The only problem is if a native module require()s some dependencies, but I don't think that happens in practice.

See also: mfncooper#34