tests/test_edits.py

from pcmt.edits import apply_edit, perturbation_scores
from pcmt.schema import Window


def test_crop_removes_active_speaker_and_records_perturbation():
    windows = [
        Window("v", 0, 0, 1, audio_atoms=("speech",), visual_atoms=("speaker_visible", "mouth_open", "person_visible"), subtitle_ocr_atoms=()),
    ]
    edited = apply_edit(windows, "crop")
    assert "speaker_visible" not in edited[0].visual_atoms
    assert "crop_occlusion" in edited[0].visual_atoms
    visual_p, audio_p = perturbation_scores(edited)
    assert visual_p == 1.0
    assert audio_p == 0.0


def test_audio_shift_adds_gap_at_front():
    windows = [
        Window("v", 0, 0, 1, audio_atoms=("speech",), visual_atoms=("speaker_visible", "mouth_open"), subtitle_ocr_atoms=()),
        Window("v", 1, 1, 2, audio_atoms=("ambient",), visual_atoms=(), subtitle_ocr_atoms=()),
    ]
    edited = apply_edit(windows, "audio_shift")
    assert "audio_gap" in edited[0].audio_atoms
    assert "speech" in edited[1].audio_atoms