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"""Tests for evaluator.score_submission().

Run from the EgoMemReason-Space/ directory:
    python -m pytest tests/ -q
"""

import json
import os
import pathlib
import sys

import pytest

ROOT = pathlib.Path(__file__).resolve().parents[1]
sys.path.insert(0, str(ROOT))

import evaluator

ANN = ROOT / "annotations_private.json"
ORACLE = ROOT / "tests" / "fixtures" / "oracle_submission.json"
ALL_A = ROOT / "tests" / "fixtures" / "all_a_submission.json"


pytestmark = pytest.mark.skipif(
    not ANN.exists(),
    reason=f"{ANN} not present (copy from ../EgoMemReason-EvalAI.archived/)",
)


def test_oracle_scores_100():
    metrics = evaluator.score_submission(str(ORACLE), str(ANN))
    for k, v in metrics.items():
        assert v == 100.0, f"{k} should be 100.0, got {v}"


def test_all_a_scores_around_14():
    # All-A's exact score depends on the A-letter frequency in the dataset
    # — we measured 14.2% during the EvalAI port. Allow a wide band.
    metrics = evaluator.score_submission(str(ALL_A), str(ANN))
    assert 10.0 <= metrics["Overall"] <= 20.0, metrics


def test_broken_submission_raises(tmp_path):
    broken = tmp_path / "broken.json"
    json.dump(
        [{"example_id": 1, "predicted_answer": "ZZ"}],   # bogus letter + only 1 row
        broken.open("w"),
    )
    with pytest.raises(ValueError) as exc:
        evaluator.score_submission(str(broken), str(ANN))
    assert "must be one of" in str(exc.value)
    assert "missing" in str(exc.value)