def depts():
''' Calculates the "mean" of all depts inside the database'''
listName = getDictFromPost(request).get('listName')
if listName != None and listName != 'undefined':
persons = storage.getExpensesPerPerson(listName, current_identity)
dispenses = storage.getDispenses(listName, current_identity)
if len(persons) > 0:
meanDepts = deptCalculator.calcDepts(persons, dispenses)
return json.dumps(meanDepts)
return json.dumps([])
return Response('Need a list id', 400)
def test_calculator_sanity():
foo, bar, baz, ping, pong = getExpensePersons()
# mean of foo and bar is 7.5
expensePersons = [foo, bar]
returnList = deptCalculator.calcDepts(expensePersons, Decimal('0'))
paybackInstruction = returnList[0]
expectedFoo = {'name': 'foo', 'some': 'attr', 'another': 'attr'}
expectedBar = {'name': 'bar', 'some': 'attr', 'another': 'attr', 'yet': 'anotherattr'}
assert paybackInstruction
assert paybackInstruction['borrower'] == expectedBar
assert paybackInstruction['sponsor'] == expectedFoo
assert paybackInstruction['amount'] == 2.5
def test_calculator_sanity_with_dispenses():
foo, bar, baz, ping, pong = getExpensePersons()
# mean of foo(10) and bar(5) with 10€ dispense is (15-10)/2 = 2.5
expensePersons = [foo, bar]
returnList = deptCalculator.calcDepts(expensePersons, Decimal('1000'))
paybackInstructions = returnList
expectedDispense = {'name': 'Spende'}
expectedFoo = {'name': 'foo', 'some': 'attr', 'another': 'attr'}
expectedBar = {'name': 'bar', 'some': 'attr', 'another': 'attr', 'yet': 'anotherattr'}
assert paybackInstructions
assert paybackInstructions[0]['borrower'] == expectedDispense
assert paybackInstructions[0]['sponsor'] == expectedFoo
assert paybackInstructions[0]['amount'] == 7.5
assert paybackInstructions[1]['borrower'] == expectedDispense
assert paybackInstructions[1]['sponsor'] == expectedBar
assert paybackInstructions[1]['amount'] == 2.5
