Clarifying Python TDD Practices with pytest , Am I on the Right Track?

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Yes i agree too with @Priyadapanicker

However, You asked if writing code before the test breaks TDD. Technically yes , but it’s fixable.

For example, in your current code, the DirectoryContainsNifRecursively() method is being tested after it was already implemented.

A TDD move would be:

First, write this failing test:

def test_search_path_contains_nif_files(setup_nifExplorer):
    for obj in setup_nifExplorer:
        assert obj.DirectoryContainsNifRecursively(obj.SearchPath)

Then, implement the actual DirectoryContainsNifRecursively() logic just enough to make this test pass.

This workflow ensures that every behaviour is driven by a test and you never write unused or overengineered code. You can even stub the method initially with a return False to see the red → green flow in action.

Hope this helps :slight_smile: