Functions
None	test_version_is_declared ()
None	test_version_matches_installed_metadata ()
None	test_package_carries_no_web_framework ()
None	test_physics_stack_is_importable (str module)
None	test_stack_versions_reports_every_dependency ()

Variables
list	REQUIRED_STACK = ["numpy", "scipy", "CoolProp", "fluids", "ht"]

Detailed Description

Phase 00's exit criterion, as a test.

The whole point of this phase is that ``import feedtwin`` works from two very
different environments -- the feed-twin API container and EngineDesign's
optimizer process -- and that the physics stack it needs is actually resolvable
in both. That is not a formality: an optimizer that discovers a missing CoolProp
15 minutes into a Layer X run has wasted the run.

Function Documentation

◆ test_package_carries_no_web_framework()

None test_package.test_package_carries_no_web_framework ( )

The library must stay importable in a process with no web stack.

EngineDesign's optimizer will import this package directly (ADR-0001). If a
FastAPI import ever creeps into the physics -- through a Pydantic model that
drags in starlette, most likely -- that call path acquires a dependency it
has no use for, and the separation this package exists to maintain is gone.

Checked in a subprocess, not against this process's ``sys.modules``: pytest
itself, or a sibling test, may legitimately have imported a web framework
already, and asserting on a shared interpreter would make this pass or fail
on test ordering rather than on what feedtwin actually pulls in.

Definition at line 47 of file test_package.py.

◆ test_physics_stack_is_importable()

None test_package.test_physics_stack_is_importable ( str module )

Each dependency resolves in whatever environment is running these tests.

Definition at line 77 of file test_package.py.

◆ test_stack_versions_reports_every_dependency()

None test_package.test_stack_versions_reports_every_dependency ( )

Run provenance covers the whole stack, not just feedtwin's own version.

Definition at line 82 of file test_package.py.

◆ test_version_is_declared()

None test_package.test_version_is_declared ( )

Definition at line 26 of file test_package.py.

◆ test_version_matches_installed_metadata()

None test_package.test_version_matches_installed_metadata ( )

``__init__.py`` is the only place the version is written.

pyproject.toml reads it from there via ``[tool.setuptools.dynamic]``, so the
two cannot disagree in a fresh install. They can still disagree after
bumping ``__version__`` without reinstalling, and that matters: run
provenance stamps the attribute while anything resolving the distribution
sees the metadata. This turns that into a failed test rather than two
versions of the truth in a results file.

Definition at line 30 of file test_package.py.

Variable Documentation

◆ REQUIRED_STACK

list test_package.REQUIRED_STACK = ["numpy", "scipy", "CoolProp", "fluids", "ht"]

Definition at line 23 of file test_package.py.

Functions

Variables