added failing unit tests for empty location
added failing unit tests for empty location

jeffreybergier/SwiftLint,realm/SwiftLint,Johnykutty/SwiftLint,firebase/SwiftLint,jeffreybergier/SwiftLint,realm/SwiftLint,realm/SwiftLint,victorpimentel/SwiftLint,victorpimentel/SwiftLint,lyft/SwiftLint,realm/SwiftLint,lyft/SwiftLint,jeffreybergier/SwiftLint,firebase/SwiftLint,Johnykutty/SwiftLint,jeffreybergier/SwiftLint,lyft/SwiftLint,victorpimentel/SwiftLint,lyft/SwiftLint,Johnykutty/SwiftLint,firebase/SwiftLint,firebase/SwiftLint,Johnykutty/SwiftLint,victorpimentel/SwiftLint