def test_valid_range(self):
input, expected, num, si, sj = [1, 2, 3, 4, 5, 6, 7], [1,5,6,4,2,3,7], 2, 1, 4
result = swap_num_elements(input, num, si, sj)
self.assertEqual(expected, result)
input, expected, num, si, sj = [1, 2, 3, 4, 5, 6, 7], [4, 5, 6, 1, 2, 3, 7], 3, 0 , 3
result = swap_num_elements(input, num, si, sj)
self.assertEqual(expected, result)
def test_empty_array(self):
input, expected, num, si, sj = [], [], 1, 0, 2
result = swap_num_elements(input, num, si, sj)
self.assertEqual(expected, result)
def test_invaid_mix_range(self):
input, expected, num, si, sj = [1, 2, 3, 4], [1, 2, 3, 4], 2, 0, 1
result = swap_num_elements(input, num, si, sj)
self.assertEqual(expected, result)
def test_out_of_range(self):
input, expected, num, si, sj = [1, 2, 3, 4], [1, 2, 3, 4], 3, 0, 3
result = swap_num_elements(input, num, si, sj)
self.assertEqual(expected, result)
def test_border_swap(self):
input, expected, num, si, sj = [1, 2, 3, 4], [3, 4, 1,2], 2, 0, 2
result = swap_num_elements(input, num, si, sj)
self.assertEqual(expected, result)
def test_zero_swap(self):
input, expected, num, si, sj = [1, 2, 3], [1, 2, 3], 0, 0, 1
result = swap_num_elements(input, num, si, sj)
self.assertEqual(expected, result)