def run_projection(db):
"""Run projection showing total contribution of challenge scenario"""
while True:
factor = input("\nChallenge factor ('q' to quit): ")
if factor in ('q', 'quit'):
return
min_filter = input("Minimum donation to challenge (<return> for none, 'q' to quit): ")
if min_filter in ('q', 'quit'):
return
max_filter = input("Maximum donation to challenge (<return> for none, 'q' to quit): ")
if max_filter in ('q', 'quit'):
return
try:
scenario = Donors.challenge(db,
float(factor),
float(min_filter) if min_filter else None,
float(max_filter) if max_filter else None)
except ValueError:
print('Invalid inputs, try again')
else:
break
print()
for d in scenario.values():
print(f" {d.name}: ${sum(d.donations):,.2f} = {factor} * "
f"("+' + '.join(list(map(lambda x: f"${x:,.2f}", d.donations)))+')')
print(f"\n Total contribution required: ${scenario.total_value():,.2f}\n")
def test_challenge():
donors = Donors()
d1 = Donor("Mark", 50)
d1.add_donation(90)
d1.add_donation(110)
d2 = Donor("Mary", 80)
d2.add_donation(95)
d2.add_donation(115)
donors.add_donor(d1)
donors.add_donor(d2)
copy = donors.challenge(3, min_amt=85, max_amt=100)
assert copy.get_donor("Mark").donations == (270, )
assert copy.get_donor("Mary").donations == (285, )
def test_donors_challenge_max_donation():
db = Donors({"A Name": [1, 2, 3], "B Name": [4, 5, 6]})
db2 = Donors.challenge(db, 2, max_donation=4)
assert db2["A Name"].donations == [2, 4, 6]
assert db2["B Name"].donations == [8]
def test_donors_challenge_min_and_max_donation():
db = Donors({"A Name": [1, 2, 3], "B Name": [4, 5, 6]})
db2 = Donors.challenge(db, 2, min_donation=2, max_donation=5)
assert db2["A Name"].donations == [4, 6]
assert db2["B Name"].donations == [8, 10]
def test_donors_challenge_min_donation():
db = Donors({"A Name": [1, 2, 3], "B Name": [4, 5, 6]})
db2 = Donors.challenge(db, 2, min_donation=4)
assert not db2.get("A Name")
assert db2["B Name"].donations == [8, 10, 12]
