fixup! WIP

tests/queries/test_buy_product.py

@@ -0,0 +1,184 @@
+import math
+from datetime import datetime
+
+from sqlalchemy.orm import Session
+
+from dibbler.models import Product, Transaction, User
+from dibbler.queries.buy_product import buy_product
+from dibbler.queries.product_stock import product_stock
+from dibbler.queries.user_balance import user_balance
+
+
+def insert_test_data(sql_session: Session) -> tuple[User, Product]:
+    user = User("Test User")
+    product = Product("1234567890123", "Test Product")
+
+    sql_session.add(user)
+    sql_session.add(product)
+    sql_session.commit()
+
+    transactions = [
+        Transaction.adjust_penalty(
+            time=datetime(2023, 10, 1, 10, 0, 0),
+            user_id=user.id,
+            penalty_multiplier_percent=200,
+            penalty_threshold=-100,
+        ),
+        Transaction.adjust_balance(
+            time=datetime(2023, 10, 1, 10, 0, 1),
+            user_id=user.id,
+            amount=100,
+        ),
+        Transaction.add_product(
+            time=datetime(2023, 10, 1, 10, 0, 2),
+            user_id=user.id,
+            product_id=product.id,
+            amount=27,
+            per_product=27,
+            product_count=1,
+        ),
+    ]
+
+    sql_session.add_all(transactions)
+    sql_session.commit()
+
+    return user, product
+
+
+def test_buy_product_basic(sql_session: Session) -> None:
+    user, product = insert_test_data(sql_session)
+
+    transaction = buy_product(
+        sql_session=sql_session,
+        time=datetime(2023, 10, 1, 12, 0, 0),
+        user=user,
+        product=product,
+        product_count=1,
+    )
+
+    sql_session.add(transaction)
+    sql_session.commit()
+
+
+def test_buy_product_with_penalty(sql_session: Session) -> None:
+    user, product = insert_test_data(sql_session)
+
+    transactions = [
+        Transaction.adjust_balance(
+            time=datetime(2023, 10, 1, 11, 0, 0),
+            user_id=user.id,
+            amount=-200,
+        )
+    ]
+    sql_session.add_all(transactions)
+    sql_session.commit()
+
+    transaction = buy_product(
+        sql_session=sql_session,
+        time=datetime(2023, 10, 1, 12, 0, 0),
+        user=user,
+        product=product,
+        product_count=1,
+    )
+    sql_session.add(transaction)
+    sql_session.commit()
+
+    assert user_balance(sql_session, user) == 100 + 27 - 200 - (27 * 2)
+
+
+def test_buy_product_with_interest(sql_session: Session) -> None:
+    user, product = insert_test_data(sql_session)
+
+    transactions = [
+        Transaction.adjust_interest(
+            time=datetime(2023, 10, 1, 11, 0, 0),
+            user_id=user.id,
+            interest_rate_percent=110,
+        )
+    ]
+    sql_session.add_all(transactions)
+    sql_session.commit()
+
+    transaction = buy_product(
+        sql_session=sql_session,
+        time=datetime(2023, 10, 1, 12, 0, 0),
+        user=user,
+        product=product,
+        product_count=1,
+    )
+    sql_session.add(transaction)
+    sql_session.commit()
+
+    assert user_balance(sql_session, user) == 100 + 27 - math.ceil(27 * 1.1)
+
+
+def test_buy_product_with_changing_penalty(sql_session: Session) -> None:
+    user, product = insert_test_data(sql_session)
+
+    transactions = [
+        Transaction.adjust_balance(
+            time=datetime(2023, 10, 1, 11, 0, 0),
+            user_id=user.id,
+            amount=-200,
+        )
+    ]
+    sql_session.add_all(transactions)
+    sql_session.commit()
+
+    transaction = buy_product(
+        sql_session=sql_session,
+        time=datetime(2023, 10, 1, 12, 0, 0),
+        user=user,
+        product=product,
+        product_count=1,
+    )
+    sql_session.add(transaction)
+    sql_session.commit()
+
+    assert user_balance(sql_session, user) == 100 + 27 - 200 - (27 * 2)
+
+    adjust_penalty = Transaction.adjust_penalty(
+        time=datetime(2023, 10, 1, 13, 0, 0),
+        user_id=user.id,
+        penalty_multiplier_percent=300,
+        penalty_threshold=-100,
+    )
+    sql_session.add(adjust_penalty)
+    sql_session.commit()
+
+    transaction = buy_product(
+        sql_session=sql_session,
+        time=datetime(2023, 10, 1, 14, 0, 0),
+        user=user,
+        product=product,
+        product_count=1,
+    )
+    sql_session.add(transaction)
+    sql_session.commit()
+
+    assert user_balance(sql_session, user) == 100 + 27 - 200 - (27 * 2) - (27 * 3)
+
+
+def test_buy_product_with_changing_interest(sql_session: Session) -> None:
+    raise NotImplementedError("This test is not implemented yet.")
+
+
+def test_buy_product_with_penalty_interest_combined(sql_session: Session) -> None:
+    raise NotImplementedError("This test is not implemented yet.")
+
+
+def test_buy_product_more_than_stock(sql_session: Session) -> None:
+    user, product = insert_test_data(sql_session)
+
+    transaction = buy_product(
+        sql_session=sql_session,
+        time=datetime(2023, 10, 1, 13, 0, 0),
+        product_count=10,
+        user=user,
+        product=product,
+    )
+
+    sql_session.add(transaction)
+    sql_session.commit()
+
+    assert product_stock(sql_session, product) == 1 - 10