add tests: ListingSandwichesTest, SandwichSummaryTest, TotalAmountTest, OrderSummaryTest
split tests into classes, add Listingsandwiches tests
init tests for sandwich summary
new tests
use underscores in tests, add tests for add order
add new tests
add # to names in ExpectedUserTotalAmount
TotalAmount in CommonInitData, remove equals
clean up
Merge pull request #13 from ela-compil/ControllerTests

Controller tests