"""Tests for language tools."""

from alfred.agent.tools.language import set_language


class TestSetLanguage:
    def test_success_returns_ok(self, memory):
        result = set_language("fr")
        assert result["status"] == "ok"
        assert result["language"] == "fr"

    def test_message_contains_language(self, memory):
        result = set_language("en")
        assert "en" in result["message"]

    def test_persists_to_memory(self, memory):
        set_language("es")
        # Verify it's stored in STM
        from alfred.infrastructure.persistence import get_memory

        mem = get_memory()
        assert mem.stm.language == "es"

    def test_various_language_codes(self, memory):
        for lang in ["en", "fr", "es", "de", "it", "pt"]:
            result = set_language(lang)
            assert result["status"] == "ok"
            assert result["language"] == lang

    def test_error_on_memory_failure(self, monkeypatch):
        from alfred.agent.tools import language as lang_module

        def broken_get_memory():
            raise RuntimeError("memory unavailable")

        monkeypatch.setattr(lang_module, "get_memory", broken_get_memory)
        result = set_language("fr")
        assert result["status"] == "error"
        assert "error" in result