import pytest,os
from services.auth_service import AuthService
class TestAuthService:
    def test_hash_consistent(self):
        s=AuthService({});assert s._hash_password("x")==s._hash_password("x")
    def test_hash_len(self):
        assert len(AuthService({})._hash_password("x"))==64
    def test_invalid_login(self):
        assert AuthService({}).authenticate_user("admin","WRONG") is None
    def test_valid_login(self):
        pw=os.environ.get("SENSU_ADMIN_PASSWORD","admin123")
        assert AuthService({}).authenticate_user("admin",pw) is not None