Coupon Carl
b7e6f637a7
Consolidate API gateway service into monorepo. Squashed from https://github.com/cartsnitch/api main (89bacb1). Co-Authored-By: Paperclip <noreply@paperclip.ing>
103 lines
4.1 KiB
Python
103 lines
4.1 KiB
Python
"""E2E: Price history queries returning correct data."""
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import pytest
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@pytest.mark.asyncio
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class TestPriceTrends:
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"""Verify price trend aggregation against seeded history."""
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async def test_trends_returns_all_products(self, client, seed_data):
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resp = await client.get("/prices/trends", headers=seed_data["headers"])
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assert resp.status_code == 200
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data = resp.json()
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product_names = [t["product_name"] for t in data]
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assert "Cheerios 18oz" in product_names
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assert "Whole Milk 1gal" in product_names
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async def test_trends_filter_by_category(self, client, seed_data):
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resp = await client.get(
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"/prices/trends", params={"category": "dairy"}, headers=seed_data["headers"]
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)
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assert resp.status_code == 200
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data = resp.json()
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assert len(data) >= 1
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# Only dairy products should appear
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for trend in data:
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assert trend["product_name"] == "Whole Milk 1gal"
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async def test_trends_contain_data_points(self, client, seed_data):
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resp = await client.get("/prices/trends", headers=seed_data["headers"])
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data = resp.json()
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cheerios_trend = next(t for t in data if t["product_name"] == "Cheerios 18oz")
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assert len(cheerios_trend["data_points"]) >= 3
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@pytest.mark.asyncio
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class TestPriceIncreases:
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"""Detect price increases from seeded price history."""
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async def test_increases_detected(self, client, seed_data):
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resp = await client.get("/prices/increases", headers=seed_data["headers"])
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assert resp.status_code == 200
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data = resp.json()
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# Cheerios at Meijer went from 3.99 → 4.29 → 4.79
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cheerios_increases = [inc for inc in data if inc["product_name"] == "Cheerios 18oz"]
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assert len(cheerios_increases) >= 1
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# Verify the increase data makes sense
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for inc in cheerios_increases:
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assert inc["new_price"] > inc["old_price"]
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assert inc["increase_pct"] > 0
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assert inc["store_name"] == "Meijer"
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async def test_stable_prices_not_flagged(self, client, seed_data):
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"""Kroger Cheerios price is stable at $4.49 — should not appear as increase."""
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resp = await client.get("/prices/increases", headers=seed_data["headers"])
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data = resp.json()
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kroger_increases = [
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inc
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for inc in data
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if inc["product_name"] == "Cheerios 18oz" and inc["store_name"] == "Kroger"
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]
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assert len(kroger_increases) == 0
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@pytest.mark.asyncio
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class TestPriceComparison:
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"""Compare prices across stores for specific products."""
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async def test_compare_cheerios_across_stores(self, client, seed_data):
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cheerios_id = str(seed_data["products"]["cheerios"].id)
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resp = await client.get(
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"/prices/comparison",
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params={"product_ids": cheerios_id},
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headers=seed_data["headers"],
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)
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assert resp.status_code == 200
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data = resp.json()
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assert len(data) >= 1
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cheerios_cmp = data[0]
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assert cheerios_cmp["product_name"] == "Cheerios 18oz"
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store_names = [p["store_name"] for p in cheerios_cmp["prices"]]
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assert "Meijer" in store_names
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assert "Kroger" in store_names
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async def test_compare_requires_product_ids(self, client, seed_data):
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"""product_ids is required — omitting it must return 422."""
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resp = await client.get("/prices/comparison", headers=seed_data["headers"])
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assert resp.status_code == 422
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async def test_compare_multiple_products(self, client, seed_data):
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cheerios_id = str(seed_data["products"]["cheerios"].id)
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milk_id = str(seed_data["products"]["milk"].id)
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resp = await client.get(
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"/prices/comparison",
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params=[("product_ids", cheerios_id), ("product_ids", milk_id)],
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headers=seed_data["headers"],
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)
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assert resp.status_code == 200
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data = resp.json()
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names = [c["product_name"] for c in data]
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assert "Cheerios 18oz" in names
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assert "Whole Milk 1gal" in names
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