def test_knapsack_values():
try:
new_knapsack = boolean.Knapsack(values=(1, 2, 3), weights=(1, 2))
except:
new_knapsack = boolean.Knapsack()
assert new_knapsack.values[0] == 0
def test_knapsack_weights_setter():
new_knapsack = boolean.Knapsack()
try:
new_knapsack.weights = 1
except:
new_knapsack.weights = (0,)
assert new_knapsack.weights[0] == 0
def test_knapsack_values_setter():
new_knapsack = boolean.Knapsack()
try:
new_knapsack.values = 1
except:
new_knapsack.values = (0,)
assert new_knapsack.values[0] == 0
def test_knapsack_max_capacity_setter():
new_knapsack = boolean.Knapsack()
try:
new_knapsack.max_capacity = 'a'
except:
new_knapsack.max_capacity = 0
assert new_knapsack.max_capacity == 0
try:
new_knapsack.max_capacity = -1
except:
new_knapsack.max_capacity = 0
assert new_knapsack.max_capacity == 0
def test_knapsack():
new_knapsack = boolean.Knapsack(values=(1, 2, 3), weights=(1, 2, 3), max_capacity=2)
assert new_knapsack(np.array([1, 0, 0])) == -1
assert new_knapsack(np.array([1, 0, 1])) == constants.FLOAT_MAX
def test_knapsack_max_capacity():
new_knapsack = boolean.Knapsack()
assert new_knapsack.max_capacity == 0
def test_knapsack_weights():
new_knapsack = boolean.Knapsack()
assert new_knapsack.weights[0] == 0