"""Phase 1 — skill normalization + coverage-aware (floor-free) overlap."""
from app.engine import skills as S


def test_synonym_and_fold():
    assert S.norm("React.js") == "react"
    assert S.norm("K8s") == "kubernetes"
    assert S.norm("  ML ") == "machine learning"
    c = S.canon(["ML", "Python", "react.js"])
    assert {"machine learning", "python", "react"} <= c


def test_overlap_is_floor_free():
    assert S.overlap([], ["python"]) is None          # empty user → absent (NOT 0 or 60)
    assert S.overlap(["python"], []) is None           # empty job → absent
    o = S.overlap(["python", "sql", "django"], ["Python", "Django", "AWS"])
    assert o is not None and 0.0 < o["score"] <= 1.0
    assert "python" in o["matched"] and "amazon web services" in o["missing"]


def test_dims_levels():
    rows = {r["name"]: r["level"] for r in S.dims(["product management"], ["Product Management", "SQL"], k=2)}
    assert rows["Product Management"] == "Strong"
    assert rows["Sql"] == "Light"