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52e7c7a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | """Dependency-free regression coverage for diagnostic answer normalization.
The diagnostic router imports Firebase and other application services, so these
tests mirror its pure _is_diagnostic_correct/_validate contract rather than
importing the router. Keep this contract aligned with the router implementation.
"""
import pytest
def _validate_options(options: dict[str, str]) -> None:
normalized_texts = [text.strip().casefold() for text in options.values()]
if len(normalized_texts) != len(set(normalized_texts)):
raise ValueError("Option texts must be unique")
def _is_diagnostic_correct(student_answer: str, correct_answer: str, options: dict[str, str]) -> bool:
option_by_text = {text.strip().casefold(): key.upper() for key, text in options.items()}
def resolve(answer: str) -> set[str]:
resolved = set()
for value in answer.split(","):
normalized = value.strip().casefold()
if normalized.upper() in {key.upper() for key in options}:
resolved.add(normalized.upper())
elif normalized in option_by_text:
resolved.add(option_by_text[normalized])
else:
resolved.add(normalized)
return resolved
return bool(resolve(student_answer) & resolve(correct_answer))
OPTIONS = {"A": "First choice", "B": "Second choice", "C": "Third choice", "D": "Fourth choice"}
@pytest.mark.parametrize(
("student_answer", "correct_answer", "expected"),
[
("A", "A", True),
("B", "A", False),
("A", "A, C", True),
("C", "A, C", True),
("B", "A, C", False),
("A", "First choice", True),
],
)
def test_diagnostic_answer_accepts_single_multi_and_option_text_answers(
student_answer: str,
correct_answer: str,
expected: bool,
) -> None:
assert _is_diagnostic_correct(student_answer, correct_answer, OPTIONS) is expected
def test_duplicate_option_text_is_invalid() -> None:
with pytest.raises(ValueError, match="unique"):
_validate_options({"A": "Same text", "B": " same TEXT ", "C": "Other", "D": "Last"})
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