from __future__ import annotations

import unittest

from api.task_tool_policy import build_task_tool_policy


class TaskToolPolicyTests(unittest.TestCase):
    def test_e2e_literal_contract_forbids_tools_and_returns_exact_token(self) -> None:
        policy = build_task_tool_policy(
            "Rispondi ESCLUSIVAMENTE con TEST_E2E_OK. Non usare strumenti, tool, "
            "comandi shell, file, rete, servizi esterni, azioni o card."
        )
        self.assertTrue(policy.forbid_tools)
        self.assertEqual(policy.literal_response, "TEST_E2E_OK")

    def test_explicit_tool_denial_without_literal_contract_stays_tool_free(self) -> None:
        policy = build_task_tool_policy("Spiega il concetto senza usare strumenti o rete.")
        self.assertTrue(policy.forbid_tools)
        self.assertIsNone(policy.literal_response)

    def test_normal_task_remains_unrestricted(self) -> None:
        policy = build_task_tool_policy("Cerca le notizie di oggi e sintetizzale.")
        self.assertFalse(policy.forbid_tools)
        self.assertIsNone(policy.literal_response)

    def test_partial_wording_does_not_create_a_literal_contract(self) -> None:
        policy = build_task_tool_policy("Rispondi esclusivamente con una spiegazione, senza strumenti.")
        self.assertTrue(policy.forbid_tools)
        self.assertIsNone(policy.literal_response)


if __name__ == "__main__":
    unittest.main()