check50 Crashes When Student Code Includes Extra printf or Unexpected Output

[rongxin-liu]

Results for cs50/problems/2025/x/readability generated by check50 v4.0.0.dev0
:) readability.c exists
:) readability.c compiles
:( handles single sentence with multiple words
    expected: EOF
    actual:   "debug this..."
:( handles punctuation within a single sentence
    expected: EOF
    actual:   "debug this..."
:( handles more complex single sentence
    expected: EOF
    actual:   "debug this..."
:( handles multiple sentences
    expected: EOF
    actual:   "debug this..."
:( handles multiple more complex sentences
    expected: EOF
    actual:   "debug this..."
:( handles longer passages
    expected: EOF
    actual:   "debug this..."
:( handles multiple sentences with different punctuation
    expected: EOF
    actual:   "debug this..."
:( handles questions in passage
    expected: EOF
    actual:   "debug this..."
:( handles reading level before Grade 1
    expected: EOF
    actual:   "debug this..."
:( handles reading level at Grade 16+
    expected: EOF
    actual:   "debug this..."
Traceback (most recent call last):
  File "/home/ubuntu/.local/bin/check50", line 8, in <module>
    sys.exit(main())
             ~~~~^^
  File "/home/ubuntu/.local/lib/python3.13/site-packages/check50/__main__.py", line 485, in main
    html = renderer.to_html(**results)
  File "/home/ubuntu/.local/lib/python3.13/site-packages/check50/renderer/_renderers.py", line 21, in to_html
    html = template.render(
        slug=slug,
    ...<3 lines>...
        color="#808080" # RGB (128, 128, 128)
    )
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 1295, in render
    self.environment.handle_exception()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 942, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 85, in top-level template code
  File "/usr/local/lib/python3.13/site-packages/jinja2/async_utils.py", line 48, in wrapper
    return normal_func(*args, **kwargs)
  File "/usr/local/lib/python3.13/site-packages/jinja2/filters.py", line 612, in sync_do_join
    return str(d).join(map(str, value))
                       ~~~^^^^^^^^^^^^
TypeError: 'type' object is not iterable
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[rongxin-liu]

Problem might be with 'expected': <class 'pexpect.exceptions.EOF'>

[
    {'name': 'exists', 'description': 'credit.c exists', 'passed': True, 'log': ['checking that credit.c exists...'
        ], 'cause': None, 'data': {}, 'dependency': None
    },
    {'name': 'compiles', 'description': 'credit.c compiles', 'passed': True, 'log': ['running clang credit.c -o credit -std=c11 -ggdb -lm -lcs50...'
        ], 'cause': None, 'data': {}, 'dependency': 'exists'
    },
    {'name': 'test1', 'description': 'identifies 378282246310005 as AMEX', 'passed': False, 'log': ['running ./credit...', 'sending input 378282246310005...', 'checking for output "AMEX\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test2', 'description': 'identifies 371449635398431 as AMEX', 'passed': False, 'log': ['running ./credit...', 'sending input 371449635398431...', 'checking for output "AMEX\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test3', 'description': 'identifies 5555555555554444 as MASTERCARD', 'passed': False, 'log': ['running ./credit...', 'sending input 5555555555554444...', 'checking for output "MASTERCARD\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test4', 'description': 'identifies 5105105105105100 as MASTERCARD', 'passed': False, 'log': ['running ./credit...', 'sending input 5105105105105100...', 'checking for output "MASTERCARD\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test5', 'description': 'identifies 4111111111111111 as VISA', 'passed': False, 'log': ['running ./credit...', 'sending input 4111111111111111...', 'checking for output "VISA\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test6', 'description': 'identifies 4012888888881881 as VISA', 'passed': False, 'log': ['running ./credit...', 'sending input 4012888888881881...', 'checking for output "VISA\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test7', 'description': 'identifies 4222222222222 as VISA', 'passed': False, 'log': ['running ./credit...', 'sending input 4222222222222...', 'checking for output "VISA\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test8', 'description': 'identifies 1234567890 as INVALID (invalid length, checksum, identifying digits)', 'passed': True, 'log': ['running ./credit...', 'sending input 1234567890...', 'checking for output "INVALID\\n"...', 'checking for EOF...', 'checking that program exited with status 0...'
        ], 'cause': None, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test9', 'description': 'identifies 369421438430814 as INVALID (invalid identifying digits)', 'passed': False, 'log': ['running ./credit...', 'sending input 369421438430814...', 'checking for output "INVALID\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test10', 'description': 'identifies 4062901840 as INVALID (invalid length)', 'passed': True, 'log': ['running ./credit...', 'sending input 4062901840...', 'checking for output "INVALID\\n"...', 'checking for EOF...', 'checking that program exited with status 0...'
        ], 'cause': None, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test11', 'description': 'identifies 5673598276138003 as INVALID (invalid identifying digits)', 'passed': False, 'log': ['running ./credit...', 'sending input 5673598276138003...', 'checking for output "INVALID\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test12', 'description': 'identifies 4111111111111113 as INVALID (invalid checksum)', 'passed': False, 'log': ['running ./credit...', 'sending input 4111111111111113...', 'checking for output "INVALID\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test13', 'description': 'identifies 4222222222223 as INVALID (invalid checksum)', 'passed': False, 'log': ['running ./credit...', 'sending input 4222222222223...', 'checking for output "INVALID\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test14', 'description': 'identifies 3400000000000620 as INVALID (AMEX identifying digits, VISA/Mastercard length)', 'passed': False, 'log': ['running ./credit...', 'sending input 3400000000000620...', 'checking for output "INVALID\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    },
    {'name': 'test15', 'description': 'identifies 430000000000000 as INVALID (VISA identifying digits, AMEX length)', 'passed': False, 'log': ['running ./credit...', 'sending input 430000000000000...', 'checking for output "INVALID\\n"...', 'checking for EOF...'
        ], 'cause': {'rationale': 'expected: EOF\n    actual: "debug woul..."', 'help': None, 'expected': <class 'pexpect.exceptions.EOF'>, 'actual': 'debug woul...'
        }, 'data': {}, 'dependency': 'compiles'
    }
]