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105 lines
3.0 KiB
Markdown
105 lines
3.0 KiB
Markdown
# Testing
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## Testing with python-trezor
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Apart from the internal tests, Trezor core has a suite of integration tests in the [`python-trezor`](https://github.com/trezor/python-trezor) library. There are several ways to use that.
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### 1. Running the suite with pipenv
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[`pipenv`](https://docs.pipenv.org/) is a tool for making reproducible Python environments. Install it with:
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```sh
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sudo pip3 install pipenv
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```
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Inside `trezor-core` checkout, install the environment:
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```sh
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pipenv install
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```
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And run the automated tests:
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```sh
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pipenv run make test_emu
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```
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### 2. Developing new tests
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You will need a separate checkout of `python-trezor`. It's probably a good idea to do this outside the `trezor-core` directory:
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```sh
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git clone https://github.com/trezor/python-trezor
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```
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Prepare a virtual environment with all the requirements, and switch into it. Again, it's easiest to do this with `pipenv`:
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```sh
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cd python-trezor
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pipenv install -r requirements-dev.txt
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pipenv install -e .
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pipenv shell
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```
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Alternately, if you have an existing virtualenv, you can install python-trezor in "develop" mode:
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```sh
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python setup.py develop
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```
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If you want to test against the emulator, run it in a separate terminal from the `trezor-core` checkout directory:
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```sh
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PYOPT=0 ./emu.sh
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```
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Find the device address and export it as an environment variable. For the emulator, this is:
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```sh
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export TREZOR_PATH="udp:127.0.0.1:21324"
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```
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(You can find other devices with `trezorctl list`.)
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Now you can run the test suite, either from `python-trezor` or `trezor-core` root directory:
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```sh
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pytest
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```
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Or from anywhere else:
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```sh
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pytest --pyargs trezorlib.tests.device_tests # this works from other locations
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```
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You can place your own tests in `trezorlib/tests/device_tests`. See test style guide (TODO).
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If you only want to run a particular test, pick it with `-k <keyword>` or `-m <marker>`:
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```sh
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pytest -k nem # only runs tests that have "nem" in the name
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pytest -m stellar # only runs tests marked with @pytest.mark.stellar
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```
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If you want to see debugging information and protocol dumps, run with `-v`.
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### 3. Submitting tests for new features
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When you're happy with your tests, follow these steps:
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1. Mark each of your tests with the name of your feature. E.g., `@pytest.mark.ultracoin2000`.
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2. Also mark each of your tests with `@pytest.mark.xfail`. That means that the test is expected to fail.
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If you want to run that test as usual, run `pytest --runxfail`
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3. Submit a PR to `python-trezor`, containing these tests.
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4. Edit the file `trezor-core/pytest.ini`, and add your marker to the `run_xfail` item:
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``` ini
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run_xfail = lisk nem ultracoin2000
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```
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This will cause your PR to re-enable the `xfail`ed tests. That way we will see whether your feature actually implements what it claims.
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5. Submit a PR to `trezor-core`.
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6. Optionally, if you like to be extra nice: after both your PRs are accepted, submit a new one to `python-trezor` that removes the `xfail` markers, and one to `trezor-core` that removes the `run_xfail` entry.
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