from app.appearance import mood_to_appearance

def ap(v, a, d=128, u=128, g=128, w=128, i=128):
    return mood_to_appearance([v, a, d, u, g, w, i])

def test_keys():
    o = ap(128, 128)
    for k in ("hue", "saturation", "lightness", "aura", "scale", "droop", "lean", "face", "mood"):
        assert k in o
    for k in ("mouth", "eye", "brow"):
        assert k in o["face"]

def test_body_always_yellow():
    # mascot identity: the body hue is constant Hugging-Face yellow regardless of mood
    assert ap(20, 128)["hue"] == 48.0 == ap(230, 128)["hue"] == ap(128, 255)["hue"]

def test_emotion_shows_via_glow_not_body():
    assert ap(60, 200)["glow"]["type"] == "anger"      # low V + high A → red anger glow
    assert ap(70, 60)["glow"]["type"] == "sad"         # low V + low A → blue sad glow
    assert ap(210, 210)["glow"]["type"] == "joy"       # high V + high A → joy blush
    assert ap(128, 128)["glow"]["intensity"] == 0.0    # neutral → no glow

def test_face_tracks_valence_mouth():
    assert ap(230, 128)["face"]["mouth"] > 0   # smile (curve up)
    assert ap(20, 128)["face"]["mouth"] < 0    # frown (curve down)

def test_arousal_opens_eyes_and_saturates():
    assert ap(128, 240)["face"]["eye"] > ap(128, 40)["face"]["eye"]
    assert ap(128, 240)["saturation"] > ap(128, 40)["saturation"]