def test_realocates_batch_if_nessesary_when_available_quantity_reduces(
messagebus, ):
history = [
commands.CreateBatch(reference="batch1",
sku="INDIFFERENT-TABLE",
qty=100),
commands.CreateBatch(
reference="batch2",
sku="INDIFFERENT-TABLE",
qty=100,
eta=date.today(),
),
commands.Allocate(orderid="order1", sku="INDIFFERENT-TABLE", qty=50),
commands.Allocate(orderid="order2", sku="INDIFFERENT-TABLE", qty=50),
]
for message in history:
messagebus.handle(message)
[batch1, batch2] = messagebus.uow.products.get("INDIFFERENT-TABLE").batches
assert batch1.available_quantity == 0
assert batch2.available_quantity == 100
message = commands.ChangeBatchQuantity(reference="batch1", qty=55)
messagebus.handle(message)
assert batch1.available_quantity == 5
assert batch2.available_quantity == 50
def test_allocations_view(sqlite_bus):
# uow = unit_of_work.SqlAlchemyUnitOfWork(sqlite_session_factory)
sqlite_bus.handle(commands.CreateBatch('sku1batch', 'sku1', 50, None))
sqlite_bus.handle(commands.CreateBatch('sku2batch', 'sku2', 50, None))
sqlite_bus.handle(commands.Allocate(
'order1',
'sku1',
20,
))
sqlite_bus.handle(commands.Allocate(
'order1',
'sku2',
20,
))
sqlite_bus.handle(
commands.CreateBatch('sku1batch-later', 'sku1', 50, today))
sqlite_bus.handle(commands.Allocate('other-order', 'sku1', 30))
sqlite_bus.handle(commands.Allocate('other-order', 'sku2', 10))
assert views.allocations('order1', sqlite_bus.uow) == [
{
'sku': 'sku1',
'batchref': 'sku1batch'
},
{
'sku': 'sku2',
'batchref': 'sku2batch'
},
]
def test_sends_email_on_out_of_stock_error(self):
bus = bootstrap_test_app()
bus.handle(commands.CreateBatch("b1", "POPULAR-CURTAINS", 9, None))
bus.handle(commands.Allocate("o1", "POPULAR-CURTAINS", 10))
with mock.patch(
"allocation.adapters.notifications.EmailNotifications.send"
) as mock_send_mail:
bus.handle(commands.Allocate("o1", "POPULAR-CURTAINS", 10))
assert mock_send_mail.call_args == mock.call(
['*****@*****.**'], "缺货啦,货号POPULAR-CURTAINS")
def test_allocations_view(sqlite_bus):
sqlite_bus.handle(commands.CreateBatch("sku1batch", "sku1", 50, None))
sqlite_bus.handle(commands.CreateBatch("sku2batch", "sku2", 50, today))
sqlite_bus.handle(commands.Allocate("order1", "sku1", 20))
sqlite_bus.handle(commands.Allocate("order1", "sku2", 20))
# add a spurious batch and order to make sure we're getting the right ones
sqlite_bus.handle(commands.CreateBatch("sku1batch-later", "sku1", 50, today))
sqlite_bus.handle(commands.Allocate("otherorder", "sku1", 30))
sqlite_bus.handle(commands.Allocate("otherorder", "sku2", 10))
assert views.allocations("order1", sqlite_bus.uow) == [
{"sku": "sku1", "batchref": "sku1batch"},
{"sku": "sku2", "batchref": "sku2batch"},
]
def test_allocations_view(sqlite_session_factory):
uow = unit_of_work.SqlAlchemyUnitOfWork(sqlite_session_factory)
messagebus.handle(commands.CreateBatch("sku1batch", "sku1", 50, None), uow)
messagebus.handle(commands.CreateBatch("sku2batch", "sku2", 50, today), uow)
messagebus.handle(commands.Allocate("order1", "sku1", 20), uow)
messagebus.handle(commands.Allocate("order1", "sku2", 20), uow)
# add a spurious batch and order to make sure we're getting the right ones
messagebus.handle(commands.CreateBatch("sku1batch-later", "sku1", 50, today), uow)
messagebus.handle(commands.Allocate("otherorder", "sku1", 30), uow)
messagebus.handle(commands.Allocate("otherorder", "sku2", 10), uow)
assert views.allocations("order1", uow) == [
{"sku": "sku1", "batchref": "sku1batch"},
{"sku": "sku2", "batchref": "sku2batch"},
]
def test_allocates(self):
bus = bootstrap_test_app()
bus.handle(commands.CreateBatch('b1', '黑桌子', 20, None))
bus.handle(commands.Allocate('o1', '黑桌子', 10))
[batch] = bus.uow.products.get('黑桌子').batches
assert batch.available_quantity == 10
def test_commits(self):
bus = bootstrap_test_app()
bus.handle(commands.CreateBatch("batch01", "OMINOUS-MIRROR", 100,
None))
bus.handle(commands.Allocate("o1", "OMINOUS-MIRROR", 10))
assert bus.uow.committed
def test_allocates(self):
uow = FakeUnitOfWork()
messagebus.handle(
commands.CreateBatch("batch1", "COMPLICATED-LAMP", 100, None), uow)
messagebus.handle(commands.Allocate("o1", "COMPLICATED-LAMP", 10), uow)
[batch] = uow.products.get("COMPLICATED-LAMP").batches
assert batch.available_quantity == 90
def test_allocates(self):
bus = bootstrap_test_app()
bus.handle(
commands.CreateBatch("batch1", "COMPLICATED-LAMP", 100, None))
bus.handle(commands.Allocate("o1", "COMPLICATED-LAMP", 10))
[batch] = bus.uow.products.get("COMPLICATED-LAMP").batches
assert batch.available_quantity == 90
def test_deallocation(sqlite_bus):
sqlite_bus.handle(commands.CreateBatch('b1', 'sku1', 50, None))
sqlite_bus.handle(commands.CreateBatch('b2', 'sku1', 50, today))
sqlite_bus.handle(commands.Allocate('o1', 'sku1', 40))
sqlite_bus.handle(commands.ChangeBatchQuantity('b1', 10))
assert views.allocations('o1') == [{'sku': 'sku1', 'batchref': 'b2'}]
def test_errors_for_invalid_sku(self):
bus = bootstrap_test_app()
bus.handle(commands.CreateBatch("b1", "AREALSKU", 100, None))
with pytest.raises(handlers.InvalidSku,
match="Invalid sku NONEXISTENTSKU"):
bus.handle(commands.Allocate("o1", "NONEXISTENTSKU", 10))
def reallocate(
event: events.Deallocated, uow: unit_of_work.AbstractUnitOfWork
):
with uow:
product = uow.products.get(sku=event.sku)
product.events.append(commands.Allocate(**asdict(event)))
uow.commit()
def test_errors_for_invalid_sku(self):
uow = FakeUnitOfWork()
messagebus.handle(commands.CreateBatch("b1", "AREALSKU", 100, None), uow)
with pytest.raises(handlers.InvalidSku, match="Invalid sku NONEXISTENTSKU"):
messagebus.handle(
commands.Allocate("o1", "NONEXISTENTSKU", 10), uow
)
def test_out_of_stock_email(bus):
sku = random_sku()
bus.handle(commands.CreateBatch('batch1', sku, 9, None))
bus.handle(commands.Allocate('order1', sku, 10))
email = get_email_from_mailhog(sku)
assert email['Raw']['From'] == '*****@*****.**'
assert email['Raw']['To'] == ['*****@*****.**']
assert f'Out of stock for {sku}' in email['Raw']['Data']
def test_commits(self):
bus = bootstrap_test_app()
bus.handle(commands.CreateBatch('b1', 'OMINOUS-MIRROR', 100, None))
bus.handle(commands.Allocate('o1', 'OMINOUS-MIRROR', 10))
assert bus.uow.committed is True
def test_out_of_stock_email(bus):
sku = random_sku()
bus.handle(commands.CreateBatch("batch1", sku, 9, None))
bus.handle(commands.Allocate("order1", sku, 10))
email = get_email_from_mailhog(sku)
assert email["Raw"]["From"] == "*****@*****.**"
assert email["Raw"]["To"] == ["*****@*****.**"]
assert f"Out of stock for {sku}" in email["Raw"]["Data"]
def create_and_allocate_batch(uow: unit_of_work.AbstractUnitOfWork) -> tuple:
sku = helpers.random_sku()
orderid = helpers.random_orderid()
batchref = helpers.random_batchref()
message_bus.handle(commands.CreateBatch(batchref, sku, 100, None), uow)
message_bus.handle(commands.Allocate(orderid, sku, 30), uow)
return batchref, orderid, sku
def test_allocations_view(sqlite_bus):
sqlite_bus.handle(commands.CreateBatch('sku1batch', 'sku1', 50, None))
sqlite_bus.handle(commands.CreateBatch('sku2batch', 'sku2', 50, today))
sqlite_bus.handle(commands.Allocate('order1', 'sku1', 20))
sqlite_bus.handle(commands.Allocate('order1', 'sku2', 20))
# add s spurious batch and order to make sure we're getting the right ones
sqlite_bus.handle(
commands.CreateBatch('sku1batch-later', 'sku1', 50, today))
sqlite_bus.handle(commands.Allocate('otherorder', 'sku1', 30))
sqlite_bus.handle(commands.Allocate('otherorder', 'sku2', 10))
assert views.allocations('order1') == [{
'sku': 'sku1',
'batchref': 'sku1batch'
}, {
'sku': 'sku2',
'batchref': 'sku2batch'
}]
def allocate_endpoint():
try:
command = commands.Allocate(request.json['orderid'],
request.json['sku'], request.json['qty'])
bus.handle(command)
except handlers.InvalidSku as e:
return jsonify({'message': str(e)}), 400
return 'OK', 202
def test_returns_allocation(self):
bus = bootstrap_test_app()
bus.handle(commands.CreateBatch('b1', 'COMPLICATED-LAMP', 100, None))
bus.handle(commands.Allocate('o1', 'COMPLICATED-LAMP', 10))
[batch] = bus.uow.products.get('COMPLICATED-LAMP').batches
assert batch.available_quantity == 90
def allocate_endpoint():
try:
cmd = commands.Allocate(request.json["orderid"], request.json["sku"],
request.json["qty"])
bus.handle(cmd)
except InvalidSku as e:
return {"message": str(e)}, 400
return "OK", 202
def test_sends_email_on_out_of_stock_error(self):
uow = FakeUnitOfWork()
messagebus.handle(
commands.CreateBatch("b1", "POPULAR-CURTAINS", 9, None), uow)
with mock.patch("allocation.adapters.email.send") as mock_send_mail:
messagebus.handle(commands.Allocate("o1", "POPULAR-CURTAINS", 10),
uow)
assert mock_send_mail.call_args == mock.call(
"*****@*****.**", f"Out of stock for POPULAR-CURTAINS")
def test_allocations_view(sqlite_session_factory):
uow = unit_of_work.SqlAlchemyUnitOfWork(sqlite_session_factory)
messagebus.handle(commands.CreateBatch('sku1batch', 'sku1', 50, None), uow)
messagebus.handle(commands.CreateBatch('sku2batch', 'sku2', 50, today),
uow)
messagebus.handle(commands.Allocate('order1', 'sku1', 20), uow)
messagebus.handle(commands.Allocate('order1', 'sku2', 20), uow)
assert views.allocations('order1', uow) == [
{
'sku': 'sku1',
'batchref': 'sku1batch'
},
{
'sku': 'sku2',
'batchref': 'sku2batch'
},
]
def test_commits(self):
uow = FakeUnitOfWork()
messagebus.handle(
commands.CreateBatch("b1", "OMINOUS-MIRROR", 100, None), uow
)
messagebus.handle(
commands.Allocate("o1", "OMINOUS-MIRROR", 10), uow
)
assert uow.committed
def test_deallocation(sqlite_bus):
sqlite_bus.handle(commands.CreateBatch("b1", "sku1", 50, None))
sqlite_bus.handle(commands.CreateBatch("b2", "sku1", 50, today))
sqlite_bus.handle(commands.Allocate("o1", "sku1", 40))
sqlite_bus.handle(commands.ChangeBatchQuantity("b1", 10))
assert views.allocations("o1", sqlite_bus.uow) == [
{"sku": "sku1", "batchref": "b2"},
]
def test_allocate_errors_for_invalid_sku(messagebus):
message = commands.CreateBatch(reference="batch1", sku="AREALSKU", qty=100)
messagebus.handle(message)
with pytest.raises(handlers.InvalidSku,
match="Invalid sku NON-EXISTENTSKU"):
message = commands.Allocate(orderid="order1",
sku="NON-EXISTENTSKU",
qty=10)
messagebus.handle(message)
def test_reallocates_if_necessary(self):
bus = bootstrap_test_app()
event_history = [
commands.CreateBatch('批次1', '桌子', 50),
commands.CreateBatch('批次2', '桌子', 50, date.today()),
commands.Allocate('订单1', '桌子', 20),
commands.Allocate('订单2', '桌子', 20),
]
for e in event_history:
bus.handle(e)
[batch1, batch2] = bus.uow.products.get(sku='桌子').batches
assert batch1.available_quantity == 10 # 下了两单 现在库存10
assert batch2.available_quantity == 50 # 这个不变
# bus.handle(
# commands.ChangeBatchQuantity('批次1', 25), uow)
bus.handle(commands.ChangeBatchQuantity('批次1', 25))
assert batch1.available_quantity == 5 # 批次1泡水了 库存25 所以要退下的单子给批次2
assert batch2.available_quantity == 30 # 批次2 减少20
def test_deallocation(sqlite_session_factory):
uow = unit_of_work.SqlAlchemyUnitOfWork(sqlite_session_factory)
messagebus.handle(commands.CreateBatch("b1", "sku1", 50, None), uow)
messagebus.handle(commands.CreateBatch("b2", "sku1", 50, today), uow)
messagebus.handle(commands.Allocate("o1", "sku1", 40), uow)
messagebus.handle(commands.ChangeBatchQuantity("b1", 10), uow)
assert views.allocations("o1", uow) == [
{"sku": "sku1", "batchref": "b2"},
]
def test_reallocates_if_necessary(self):
uow = FakeUnitOfWork()
history = [
commands.CreateBatch("batch1", "INDIFFERENT-TABLE", 50, None),
commands.CreateBatch("batch2", "INDIFFERENT-TABLE", 50, date.today()),
commands.Allocate("order1", "INDIFFERENT-TABLE", 20),
commands.Allocate("order2", "INDIFFERENT-TABLE", 20),
]
for msg in history:
messagebus.handle(msg, uow)
[batch1, batch2] = uow.products.get(sku="INDIFFERENT-TABLE").batches
assert batch1.available_quantity == 10
assert batch2.available_quantity == 50
messagebus.handle(commands.ChangeBatchQuantity("batch1", 25), uow)
# order1 or order2 will be deallocated, so we'll have 25 - 20
assert batch1.available_quantity == 5
# and 20 will be reallocated to the next batch
assert batch2.available_quantity == 30
def test_allocations_view(session_factory):
uow = unit_of_work.SqlAlchemyUnitOfWork(session_factory)
messagebus.handle(commands.CreateBatch('sku1batch', 'sku1', 50, None), uow)
messagebus.handle(
commands.CreateBatch('sku2batch', 'sku2', 50, date.today()), uow)
messagebus.handle(commands.Allocate('vieworder1', 'sku1', 20), uow)
messagebus.handle(commands.Allocate('vieworder1', 'sku2', 20), uow)
# add a spurious batch and order to make sure we're getting the right ones
messagebus.handle(
commands.CreateBatch('sku1batch-later', 'sku1', 50, date.today()), uow)
messagebus.handle(commands.Allocate('otherorder', 'sku1', 30), uow)
messagebus.handle(commands.Allocate('otherorder', 'sku2', 10), uow)
assert views.allocations('vieworder1', uow) == [{
'sku': 'sku1',
'batchref': 'sku1batch'
}, {
'sku': 'sku2',
'batchref': 'sku2batch'
}]
