def test_repeats(self):
stocks = [2, 2, 2, 4, 5, 8, 2]
response = 6
self.assertEqual(max_profit(stocks), response)
stocks = [2, 3, 4, 5, 6, 7, 7, 7, 7]
response = 5
self.assertEqual(max_profit(stocks), response)
def test_neg_numbers(self):
stocks = [-7, 3, 5, 2, 9]
response = 16
self.assertEqual(max_profit(stocks), response)
stocks = [-7, -8, -5, -4, -2, -9]
response = 6
self.assertEqual(max_profit(stocks), response)
def test_max_profit(self):
self.assertEqual(max_profit([7, 1, 5, 3, 6, 4]), 5)
self.assertEqual(max_profit([7, 6, 4, 3, 1]), 0)
self.assertEqual(max_profit([2, 4, 1, 6]), 5)
self.assertEqual(max_profit([2, 4, 1]), 2)
self.assertEqual(max_profit([2, 4, 6, 1]), 4)
self.assertEqual(max_profit([3, 2, 6, 5, 0, 3]), 4)
def test_empty():
stocks = []
assert (max_profit(stocks) == [])
def test_simple():
stocks = [1, 2, 3, 4]
assert (max_profit(stocks) == [1, 4])
def test_medium2():
stocks = [5, 10, 2, 5, 14]
assert (max_profit(stocks) == [2, 14])
def test_medium():
stocks = [5, 10, 2, 5]
assert (max_profit(stocks) == [5, 10])
def test_one_elt():
stocks = [1]
assert (max_profit(stocks) == [1, 1])
def test_base_case(self):
stocks = [1, 2, 4, 6, 7]
response = 6
self.assertEqual(max_profit(stocks), response)
def test_huge_array(self):
stocks = [1] + list(np.random.randint(2, 1000, 1000)) + [1005]
response = 1004
self.assertEqual(max_profit(stocks), response)
def test_buy_first(self):
stocks = [9, 1, 3, 5, 7]
response = 6
self.assertEqual(max_profit(stocks), response)
def test_empty_list(self):
stocks = []
response = 0
self.assertEqual(max_profit(stocks), response)
def test_multiple_answer(self):
stocks = [1, 7, 1, 7, 1, 7]
response = 6
self.assertEqual(max_profit(stocks), response)
def test_no_answer(self):
stocks = [7, 6, 5, 4, 3, 2, 1]
response = 0
self.assertEqual(max_profit(stocks), response)
stocks = [7, 7, 7, 7, 7, 7]
self.assertEqual(max_profit(stocks), response)
def test_beginning(self):
stocks = [1, 9, 2, 4, 6, 3]
response = 8
self.assertEqual(max_profit(stocks), response)
def test_end(self):
stocks = [9, 6, 7, 8, 1, 5]
response = 4
self.assertEqual(max_profit(stocks), response)
