Протестировать работу TransactionController

[amivanoff]

No description provided.

[bittenradish]

Протестировать GET, POST, PUT, DELETE транзакций.

[bittenradish]

Tests:
1)commitingTransactionShouldWorkOK()
addTransaction
getStatements
commitTransaction
getStatements

2)clearBeforeCommitingShouldAddNoChange()
addTransaction
deleteStatementsInTransaction
commitTransaction
getStatements

3)tryDeleteAfterCommit()
addTransaction
commitTransaction
getStatements
deleteTransaction
getStatements

4)rollbackBeforeCommitingShouldGetError()
addTransaction
deleteTransaction
commitTransaction
getStatements

5)getChangesFromtransactionOK()
addTransaction
getDataFromTransaction
deleteTransaction

6)deleteOneStatementFromTransaction()
addTransaction
deleteStatementsInTransaction(1)
commitTransaction
getStatements

7)addTwoTransactionCommitOneShouldWorkOK()
addTransaction(1)
addTransaction(2)
deleteTransaction(1)
commitTransaction

8)addTwoInOneTrAndTheSameInOtherOK()
addTransaction(1)
commitTransaction(1)
addTransaction(2)
commitTransaction(2)
getStatements