Much Needed Unit Tests!

[crearo]

The code and functionalities are growing in exponential size.

Really require good unit tests to cover at least the following :

• Login with username, password
• Open Inbox, Sent and Trash (All folders)
• View emails in all three fragments, download attachments if present
• Mark multiple and delete/send to trash/mark read/unread
• Compose email with appropriate error checks
• Add multiple accounts, keep toggling between them
• Logout
• Monkey Runner