This change utilizes pytest-xdist to perform a multiproc test
run and reworks aurweb.db's code. We no longer use a global
engine, session or Session, but we now use a memo of engines
and sessions as they are requested, based on the PYTEST_CURRENT_TEST
environment variable, which is available during testing.
Additionally, this change strips several SQLite components
out of the Python code-base.
SQLite is still compatible with PHP and sharness tests, but
not with our FastAPI implementation.
More changes:
------------
- Remove use of aurweb.db.session global in other code.
- Use new aurweb.db.name() dynamic db name function in env.py.
- Added 'addopts' to pytest.ini which utilizes multiprocessing.
- Highly recommended to leave this be or modify `-n auto` to
`-n {cpu_threads}` where cpu_threads is at least 2.
Signed-off-by: Kevin Morris <kevr@0cost.org>
For SQLAlchemy to automatically understand updates from the
external world, it must use an `autocommit=True` in its session.
This change breaks how we were using commit previously, as
`autocommit=True` causes SQLAlchemy to commit when a
SessionTransaction context hits __exit__.
So, a refactoring was required of our tests: All usage of
any `db.{create,delete}` must be called **within** a
SessionTransaction context, created via new `db.begin()`.
From this point forward, we're going to require:
```
with db.begin():
db.create(...)
db.delete(...)
db.session.delete(object)
```
With this, we now get external DB modifications automatically
without reloading or restarting the FastAPI server, which we
absolutely need for production.
Signed-off-by: Kevin Morris <kevr@0cost.org>
Some of these tests were written before some of our convenient
tooling existed. Additionally, some of the tests were not
cooperating with PEP-8 guidelines or isorted.
This commit does the following:
- Replaces all calls to make_(user|session) with
aurweb.db.create(Model, ...).
- Replace calls to session.add(...) + session.commit() with
aurweb.db.create.
- Removes the majority of calls to (session|aurweb.db).delete(...).
- Replaces session.query calls with aurweb.db.query.
- Initializes all mutable globals in pytest fixture setup().
- Makes mutable global declarations more concise:
`var1, var2 = None, None` -> `var1 = var2 = None`
- Defines a warning exclusion for test/test_ssh_pub_key.py.
- Removes the aurweb.testing.models module.
- Removes some useless pytest.fixture yielding.
As of this commit, developers should use the following guidelines
when writing tests:
- Always use aurweb.db.(create|delete|query) for database
operations, where possible.
- Always define mutable globals in the style: `var1 = var2 = None`.
- `yield` the most dependent model in pytest setup fixture **iff**
you must delete records after test runs to maintain database
integrity. Example: test/test_account_type.py.
This all makes the test code look and behave much cleaner.
Previously, aurweb.testing.setup_test_db was buggy and leaving
objects around in SQLAlchemy's IdentityMap.
Signed-off-by: Kevin Morris <kevr@0cost.org>
