Add unit test on RouterStore

[misstick]

Methods

• [x] getRouter
• [x] getAccountID
• [x] getAccount
• [x] getDefaultAccount
• [x] getMailboxID
• [x] getMailbox
• [x] getAllMailboxes
• [x] getMessageID
• [x] getConversationID
• [x] getAction
• [x] getFilter
• [x] isUnread
• [x] isFlagged
• [x] isAttached
• [x] isDeleted
• [x] isDraft
• [x] getMailboxTotal
• [x] getURL
• [x] getCurrentURL
• [x] getURI
• [ ] getMessagesPerPage
• [ ] hasNextPage
• [ ] getLastPage
• [ ] isPageComplete
• [x] getSelectedTab
• [ ] getMessagesList
• [ ] filterByFlags
• [ ] getNearestMessage
• [ ] getConversation
• [ ] getNextConversation
• [ ] getPreviousConversation
• [ ] getConversationLength

  Actions

• [x] REMOVE_ACCOUNT_SUCCESS
• [ ] MESSAGE_FETCH_SUCCESS
• [x] DISPLAY_MODAL
• [x] HIDE_MODAL
• [ ] MESSAGE_TRASH_REQUEST
• [ ] MESSAGE_TRASH_SUCCESS
• [ ] MESSAGE_TRASH_FAILURE
• [ ] RECEIVE_MESSAGE_DELETE
• [ ] MESSAGE_FLAGS_SUCCESS
• [ ] SETTINGS_UPDATE_REQUEST

[misstick]

@m4dz, @aenario : scope is too big to be finished in this PR; I will handle others test in several PR.

[misstick]

Some routing regressions appears becauseof test; I'm on it.

[m4dz]

Woohooo \o/ :tada: