Feature/offline tests

[elenagensch]

What does this change?

[Test Coverage] Adds Tests for

• [x] Offline Switch Flag
• [x] Offline Delete Mail
• [x] Offline Move Email (also part of delete Mail)
• [x] Update Process (mocked Endpoint)

Co-authored-by: Smilla Fox foxsmilla@gmail.com Co-authored-by: Elena Gensch elena.gensch@student.hpi.uni-potsdam.de Co-authored-by: Lukas Rost lukas.rost@student.hpi.de

Decisions / Choices I made

Offline Mode is simulated through Null Stream, when testing the synchronisation in online mode, the stream is set to a MockSocketStream. I added necessary responses in the MockServer Class.

Checklist

• [x] Your branch has no merge conflicts with master
• [x] All related commits are squashed together
• [x] Singleton / Database changed: MovedEmailStorage

[coveralls]

Pull Request Test Coverage Report for Build 1082181468

• 4 of 4 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+13.2%) to 88.692%

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Totals
Change from base Build 1025864708:	13.2%
Covered Lines:	1349
Relevant Lines:	1521

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💛 - Coveralls