def top_test(self):
'''
Test that the value of the 2nd pixel from the top is 7.
'''
top_test_result = get_value_by_pixel_count(self.input_array, 7, 'top')
error = 'top_test gave ' + str(top_test_result) + ' expected 7.'
assert top_test_result == 7, error
def bottom_test(self):
'''
Test that the value of the 2nd pixel from the bottom is 1.
'''
bottom_test_result = get_value_by_pixel_count(self.input_array, 2, 'bottom')
error = 'bottom_test gave ' + str(bottom_test_result) + ' expected 2.'
assert bottom_test_result == 1, error
