# Extended unit tests Tests in this directory will be compiled into a single executable which links with the DMD frontend and runs all `unittest` blocks defined in this directory. ## Purpose These tests are intended to test single components (e.g. the lexer) in isolation instead of relying on full end-to-end tests as done for `compilable`, ... . ## Remarks Refer to [test/README.md](../README.md) for general information and the [test guidelines](../README.md#test-coding-practices).