# Setting up Nominatim for Development
-This chapter gives an overview how to set up Nominatim for developement
+This chapter gives an overview how to set up Nominatim for development
and how to run tests.
!!! Important
## Prerequisites for testing and documentation
The Nominatim test suite consists of behavioural tests (using behave) and
-unit tests (using PHPUnit). It has the following additional requirements:
+unit tests (using PHPUnit for PHP code and pytest for Python code).
+It has the following additional requirements:
-* [behave test framework](https://behave.readthedocs.io) >= 1.2.5
-* [phpunit](https://phpunit.de) >= 7.3
+* [behave test framework](https://behave.readthedocs.io) >= 1.2.6
+* [phpunit](https://phpunit.de) (9.5 is known to work)
* [PHP CodeSniffer](https://github.com/squizlabs/PHP_CodeSniffer)
-* [Pylint](https://pylint.org/)
+* [Pylint](https://pylint.org/) (CI always runs the latest version from pip)
+* [mypy](http://mypy-lang.org/) (plus typing information for external libs)
+* [Python Typing Extensions](https://github.com/python/typing_extensions) (for Python < 3.9)
+* [pytest](https://pytest.org)
+* [pytest-asyncio](https://pytest-asyncio.readthedocs.io)
+
+For testing the Python search frontend, you need to install extra dependencies
+depending on your choice of webserver framework:
+
+* [httpx](https://www.python-httpx.org/) (starlette only)
+* [asgi-lifespan](https://github.com/florimondmanca/asgi-lifespan) (starlette only)
The documentation is built with mkdocs:
* [mkdocs](https://www.mkdocs.org/) >= 1.1.2
+* [mkdocstrings](https://mkdocstrings.github.io/) >= 0.16
+* [mkdocstrings-python-legacy](https://mkdocstrings.github.io/python-legacy/)
### Installing prerequisites on Ubuntu/Debian
```sh
sudo apt install php-cgi phpunit php-codesniffer \
- python3-pip python3-setuptools python3-dev pylint3
+ python3-pip python3-setuptools python3-dev
-pip3 install --user behave mkdocs
+pip3 install --user behave mkdocs mkdocstrings pytest pytest-asyncio pylint \
+ mypy types-PyYAML types-jinja2 types-psycopg2 types-psutil \
+ types-ujson types-requests types-Pygments typing-extensions\
+ httpx asgi-lifespan
```
The `mkdocs` executable will be located in `.local/bin`. You may have to add
Now you can start webserver for local testing
```
-build> mkdocs serve
+build> make serve-doc
[server:296] Serving on http://127.0.0.1:8000
[handlers:62] Start watching changes
```
to your host:
```
-build> mkdocs serve --dev-addr 0.0.0.0:8088
+build> PYTHONPATH=$SRCDIR mkdocs serve --dev-addr 0.0.0.0:8088
[server:296] Serving on http://0.0.0.0:8088
[handlers:62] Start watching changes
```