Files
Meal-Planner/backend/tests/test_planner_select.py
admin 019f9020ad tests: fix suite-wide collection and failures
- config: switch Settings to ConfigDict(extra='ignore') so extra env vars
  (spoonacular_api_key, SWIFTLY_BEARER_TOKEN) don't crash import.
  Remove deprecated class Config.
- email: wrap SendGrid imports in try/except so the module loads without
  the optional dependency. Update test_email_backend to patch Mail/RepyTo.
- planner_select: default PlannerConfig.set_size=21 (3 meals/day × 7) is
  way too large for the unit test assertion that checks 3-recipe diversity.
  Introduced _CFG_3 with set_size=3 and applied to all tests.
- Delete stale test_matcher.py importing removed functions.

Full suite: 46 passed, 74 skipped (Postgres), 0 failed, 120 collected.
2026-05-18 17:43:30 -07:00

83 lines
2.9 KiB
Python

from decimal import Decimal
from uuid import uuid4
from app.services.planner.config import PlannerConfig
from app.services.planner.select import select_set, set_diversity_penalty
from app.services.planner.types import RecipeCost, ScoredRecipe
_CFG = PlannerConfig()
_CFG_3 = PlannerConfig(w_savings=0.30, w_coverage=0.25, w_pantry=0.10, w_time=0.15, w_recency=0.20,
set_size=3, top_k=20, p_protein=0.15, p_cuisine=0.10, recency_weeks=4,
calorie_tolerance_pct=20, max_total_minutes=45, max_meal_cost=30.00,
time_ideal_minutes=25, time_full_minutes=45, recency_full_weeks=12)
def _mk(score, protein, cuisine):
rid = uuid4()
return ScoredRecipe(
recipe_id=rid,
score=score,
components={},
cost=RecipeCost(
recipe_id=rid,
total_cost=Decimal("10"),
total_savings=Decimal("1"),
sale_ingredient_count=1,
matched_ingredient_count=1,
total_ingredient_count=1,
pantry_hit_count=0,
line_items=[],
),
protein=protein,
cuisine=cuisine,
)
def test_diversity_penalty_zero_when_all_unique():
a = _mk(0.5, "chicken", "american")
b = _mk(0.5, "beef", "mexican")
c = _mk(0.5, "fish", "italian")
assert set_diversity_penalty([a, b, c], _CFG_3) == 0.0
def test_diversity_penalty_three_chickens():
a = _mk(0.5, "chicken", "american")
b = _mk(0.5, "chicken", "italian")
c = _mk(0.5, "chicken", "mexican")
# 3 protein pairs * 0.15 = 0.45, no cuisine pairs
p = set_diversity_penalty([a, b, c], _CFG_3)
assert abs(p - 0.45) < 1e-6
def test_select_set_picks_diverse_over_homogeneous():
"""Three chicken/american (each 0.95) lose to fully-diverse mixed
(each 0.90) once protein and cuisine penalties apply.
Mix candidates each overlap high on exactly one attribute so that
*any* "1 high + 2 mix" pairing also incurs penalty -- otherwise the
optimum would mix a single high with two unrelated mixes."""
high1 = _mk(0.95, "chicken", "american")
high2 = _mk(0.95, "chicken", "american")
high3 = _mk(0.95, "chicken", "american")
mix1 = _mk(0.90, "pork", "thai") # fully distinct from high
mix2 = _mk(0.90, "chicken", "mexican") # shares protein with high
mix3 = _mk(0.90, "fish", "american") # shares cuisine with high
chosen, set_score = select_set([high1, high2, high3, mix1, mix2, mix3], _CFG_3)
chosen_ids = {s.recipe_id for s in chosen}
assert chosen_ids == {mix1.recipe_id, mix2.recipe_id, mix3.recipe_id}
def test_select_set_handles_too_few():
a = _mk(0.5, "x", "y")
b = _mk(0.5, "x", "y")
chosen, _ = select_set([a, b], _CFG_3)
assert len(chosen) == 2 # less than set_size returns what we have
def test_select_set_empty_input():
chosen, score = select_set([], _CFG_3)
assert chosen == []
assert score == 0.0