Real World TDD

Shows the test driven development of a real world business feature in the are of KYC. A new feature is added to an already existing micro service. In the first place the business value is analyzed via means of BDD and then implemented following the TDD approach. We are starting with an Outside-In test based on the SpecFlow framework. Then we are implementing the business feature itself until the SpecFlow test succeeds. The subsequent refactoring introduces new coding artifacts that are not sufficiently covered so that we have to add new tests. During the live coding session we are switching between Detroit and London styles applying a very practical approach. The benefit of hexagonal architecture by separating the infrastructure integrations from business logic will be demonstrated as well. An active involvement of the audience is a key aspect of the session.