def test_original_unchanged():
"""
Test that sorting leaves the original data unchanged.
Consider
data = [3, 2, 1]
sorted_data = bubble_sort(data)
Now data shall still contain [3, 2, 1].
"""
data = [3, 2, 1]
bubble_sort(data)
assert data == [3, 2, 1]
pass
def test_integer():
data = []
for i in range(1000): # Testing integers
data.append(random.randint(1, 1000))
new_data = bubble_sort(data)
for index in range(len(new_data) - 1):
assert new_data[index] <= new_data[index + 1]
def test_sorted_is_not_original():
"""
Test that the sorting function returns a new object.
Now sorted_data shall be a different object than data,
not just another name for the same object.
"""
data = [3, 2, 1]
assert bubble_sort(data) is not data
def test_list_of_strings():
list_of_strings = ('aaa', 'ii', 'bb', 'qwr')
assert bubble_sort(list_of_strings) == ['aaa', 'bb', 'ii', 'qwr']
def test_single_string():
string_for_test = 'afdebc'
assert bubble_sort(string_for_test) == ['a', 'b', 'c', 'd', 'e', 'f']
def test_floats():
data = np.random.random(100) # Testing floats
new_data = bubble_sort(data)
for index in range(len(new_data) - 1):
assert new_data[index] <= new_data[index + 1]
def test_sort_all_equal():
"""Test that sorting handles data with identical elements."""
assert bubble_sort([1, 5, 3, 2, 3, 4, 1]) == [1, 1, 2, 3, 3, 4, 5]
def test_sort_reversed():
"""Test that sorting works on reverse-sorted data."""
assert bubble_sort([3, 2, 1]) == [1, 2, 3]
def test_sort_sorted():
"""Test that sorting works on sorted data."""
assert bubble_sort([1, 2, 3]) == [1, 2, 3]
def test_single():
"""Test that the sorting function works for single-element list"""
assert bubble_sort([1]) == [1]
def test_empty():
"""Test that the sorting function works for empty list"""
assert bubble_sort([]) == []