Implement new mocha tests and correct failing ones

[bijanmmarkes]

Mocha is currently implemented within modeify for TDD and there are also some instances of BDD tests. When running the tests many of them currently fail due to features that we are currently not using. We have also written new features such as share or print that do not have any tests written for them. We should fix all the tests that are failing and implement new ones for the features we recently added.