This blog post is part of a series about legacy coderetreat and legacy code techniques you can apply during your work. Please click to see more sessions about legacy code.
By using mocking frameworks we are writing short and easy to read tests. The duplication of test doubles written by hand is minimized by the use mocking framework.
This blog post is part of a series about legacy coderetreat and legacy code techniques you can apply during your work. Please click to see more sessions about legacy code.
Almost always when needing to test existing code we bump against dependencies that make the system untestable. This technique is useful to extract the static dependencies. After that we can use dependency inversion in order to be able to really test the systems.
With this technique we can transform untestable systems into testable systems, step by step. The steps are small because we want to enable safety while changing the code.
Extract and Override
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