from pathlib import Path

from genomic_consultant.panels.aggregate import merge_mappings
import json


def test_merge_mappings(tmp_path: Path):
    a = tmp_path / "a.json"
    b = tmp_path / "b.json"
    a.write_text('{"source":"A","phenotype_to_genes":{"HP:1":["G1","G2"]}}')
    b.write_text('{"source":"B","phenotype_to_genes":{"HP:1":["G2","G3"],"HP:2":["G4"]}}')
    out = tmp_path / "out.json"
    merge_mappings([a, b], out)
    data = json.loads(out.read_text())
    assert sorted(data["phenotype_to_genes"]["HP:1"]) == ["G1", "G2", "G3"]
    assert data["phenotype_to_genes"]["HP:2"] == ["G4"]