def test_VDB_partial_no_switch(self):
self.assertAlmostEqual(
financial.VDB(
cost=1,
salvage=0,
life=5.0,
start_period=0.5,
end_period=1.5,
factor=2.5,
),
0.375
)
def test_VDB(self):
self.assertAlmostEqual(
financial.VDB(
cost=575000,
salvage=5000,
life=10,
start_period=3,
end_period=5,
factor=1.5,
),
102160.546875
)
def test_VDB_partial(self):
self.assertAlmostEqual(
financial.VDB(
cost=1,
salvage=0,
life=14,
start_period=11.5,
end_period=12.5,
factor=1.25,
),
0.068726290454684
)
def test_VDB_non_integer_life(self):
self.assertAlmostEqual(
financial.VDB(
cost=575000,
salvage=5000,
life=10.5,
start_period=3,
end_period=5,
factor=1.5,
),
98708.55092429437
)