=== test session starts ===
platform linux -- Python 3.8.10
collected 1 item

test_file.py::test_example FAILED

=================================== FAILURES ===================================
test_example

    def test_example():
        # Test output often contains Python-like code
        x = 1
        y = 2
>       assert x == y
E       assert 1 == 2

test_file.py:5: AssertionError

# More problematic content:
>>> This looks like a REPL session
>>> But it's actually test output

"Unclosed string literal
'Another unclosed string

[Unclosed list
{Unclosed dict
(Unclosed paren

def 123invalid():  # Invalid Python identifier
    pass

# Binary data
b'\x00\x01\x02'

# Unicode
print("Hello ☺ World")

=== 1 failed ===