Test Driven Development for Embedded C

The Embedded TDD Cycle

The embedded TDD cycle is an extension of the core TDD microcycle, described in ​ The TDD Microcycle ​. It is designed to overcome the target-hardware bottleneck.

TDD is most effective when the build and test cycle takes only a handful of seconds. A longer build and test time usually results in taking bigger steps; with the bigger steps come more things that can be broken, leading to more debugging when the test finally is run. The need for a fast feedback loop leads us to move the TDD microcycle off the target to run natively on the development system. The TDD microcycle is the first stage of the embedded TDD cycle, as depicted in Figure 8, ​The embedded Test-Driven Development cycle​.

Figure 8. The embedded Test-Driven ...