85 lines
2.4 KiB
Python
85 lines
2.4 KiB
Python
import datetime as dt
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from decimal import Decimal
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from random import choice
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import pytest
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from app import ledger
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ENTITIES = ("mary", "john", "insurance", "supermarket", "lottery", "joe", "gas station")
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@pytest.fixture
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def ledger_data():
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return (
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"2015-01-16,john,mary,125.00",
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"2015-01-17,john,supermarket,20.00",
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"2015-01-17,mary,insurance,100.00",
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)
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@pytest.fixture
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def invalid_data_sets():
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return (
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(
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"201-01-16,john,mary,125.00",
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"2015-01-17,john,supermarket,20.00",
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"2015-01-17,mary,insurance,100.00",
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),
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(
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"2015-01-16,john,,125.00",
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"2015-01-17,john,supermarket,20.00",
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"2015-01-17,mary,insurance,100.00",
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),
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)
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@pytest.fixture
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def random_data():
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N = 10_000
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data = []
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for _ in range(N):
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date = f"{choice(range(2014, 2018))}-{choice(range(1, 13)):02}-{choice(range(1, 29)):02}"
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source = choice(ENTITIES)
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target = choice([i for i in ENTITIES if i != source])
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amount = Decimal(choice(range(-500, 250)))
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data.append(f"{date},{source},{target},{amount}")
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return data
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@pytest.fixture
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def ingest(ledger_data):
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ledger.ingest(ledger_data)
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def test_invalid(invalid_data_sets):
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for invalid_data in invalid_data_sets:
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with pytest.raises(ledger.ValidationError):
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ledger.ingest(invalid_data)
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def test_ledger_ingest(ingest):
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assert len(ledger._get_transactions()) == 6
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assert len(ledger.entities) == 4
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assert ledger.entities["john"]
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assert ledger.entities["mary"]
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assert ledger.entities["insurance"]
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assert ledger.entities["supermarket"]
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def test_get_balance(ingest):
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assert ledger.get_balance("john") == Decimal(-145)
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assert ledger.get_balance("john", dt.date(2015, 1, 16)) == Decimal(-125)
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assert ledger.get_balance("mary", dt.date(2015, 1, 16)) == Decimal(125)
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assert ledger.get_balance("mary", dt.date(2015, 1, 17)) == Decimal(25)
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assert ledger.get_balance("mary") == Decimal(25)
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def test_get_balance_random(random_data):
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ledger.ingest(random_data)
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for entity_name, transactions in ledger.entities.items():
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assert ledger.get_balance(entity_name) == sum(t[1] for t in transactions)
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assert ledger.get_balance(entity_name, dt.date(2017, 3, 5)) == sum(
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amount for date, amount in transactions if date <= dt.date(2017, 3, 5)
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)
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