rapids/docs/developers/testing.md

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# Testing
The following is a simple guide to testing RAPIDS. All files necessary for testing are stored in the `/tests` directory
## Steps for Testing
1. To begin testing RAPIDS place the fake raw input data `csv` files in
`tests/data/raw/`. The fake participant files should be placed in
`tests/data/external/`. The expected output files of RAPIDS after
processing the input data should be placed in
`tests/data/processesd/`.
2. The Snakemake rule(s) that are to be tested must be placed in the
`tests/Snakemake` file. The current `tests/Snakemake` is a good
example of how to define them. (At the time of writing this
documentation the snakefile contains rules messages (SMS), calls and
screen)
3. Edit the `tests/settings/config.yaml`. Add and/or remove the rules
to be run for testing from the `forcerun` list.
4. Edit the `tests/settings/testing_config.yaml` with the necessary
configuration settings for running the rules to be tested.
5. Add any additional testscripts in `tests/scripts`.
6. Uncomment or comment off lines in the testing shell script
`tests/scripts/run_tests.sh`.
7. Run the testing shell script.
```bash
tests/scripts/run_tests.sh
```
The following is a snippet of the output you should see after running your test.
```bash
test_sensors_files_exist (test_sensor_features.TestSensorFeatures) ... ok
test_sensors_features_calculations (test_sensor_features.TestSensorFeatures) ... FAIL
======================================================================
FAIL: test_sensors_features_calculations (test_sensor_features.TestSensorFeatures)
----------------------------------------------------------------------
```
The results above show that the first test `test_sensors_files_exist` passed while `test_sensors_features_calculations` failed. In addition you should get the traceback of the failure (not shown here). For more information on how to implement test scripts and use unittest please see [Unittest Documentation](https://docs.python.org/3.7/library/unittest.html#command-line-interface)
Testing of the RAPIDS sensors and features is a work-in-progress. Please see `test-cases`{.interpreted-text role="ref"} for a list of sensors and features that have testing currently available.
Currently the repository is set up to test a number of sensors out of the box by simply running the `tests/scripts/run_tests.sh` command once the RAPIDS python environment is active.