Broad integration tests

Broad integration tests, as described by Martin Fowler:

• Require live versions of all services, requiring substantial test environment and network access

• Exercise code paths through all services, not just code responsible for interactions

While Broad integration tests are still focused on the integration between two components, they require a fair amount of work to set up, and is at a higher level of complexity than Narrow integration tests in terms of setup, because they require that components really talk to each other, with the real versions of those services.

Besides that, the scope is bigger than with Narrow integration tests, because Broad integration tests do not focus on the parts of the code that interacts with other services, but more complete code paths.