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""" `TTSEngineManager` クラスのテスト"""

import pytest
from fastapi import HTTPException

from voicevox_engine.dev.tts_engine.mock import MockTTSEngine
from voicevox_engine.tts_pipeline.tts_engine import LATEST_VERSION, TTSEngineManager


def test_tts_engines_register_engine() -> None:
    """TTSEngineManager.register_engine() で TTS エンジンを登録できる。"""
    # Inputs
    tts_engines = TTSEngineManager()

    # Test
    tts_engines.register_engine(MockTTSEngine(), "0.0.1")


def test_tts_engines_versions() -> None:
    """TTSEngineManager.versions() でバージョン一覧を取得できる。"""
    # Inputs
    tts_engines = TTSEngineManager()
    tts_engines.register_engine(MockTTSEngine(), "0.0.1")
    tts_engines.register_engine(MockTTSEngine(), "0.0.2")
    # Expects
    true_versions = ["0.0.1", "0.0.2"]
    # Outputs
    versions = tts_engines.versions()

    # Test
    assert true_versions == versions


def test_tts_engines_get_engine_existing() -> None:
    """TTSEngineManager.get_engine() で登録済み TTS エンジンを取得できる。"""
    # Inputs
    tts_engines = TTSEngineManager()
    tts_engine1 = MockTTSEngine()
    tts_engine2 = MockTTSEngine()
    tts_engines.register_engine(tts_engine1, "0.0.1")
    tts_engines.register_engine(tts_engine2, "0.0.2")
    # Expects
    true_acquired_tts_engine = tts_engine2
    # Outputs
    acquired_tts_engine = tts_engines.get_engine("0.0.2")

    # Test
    assert true_acquired_tts_engine == acquired_tts_engine


def test_tts_engines_get_engine_latest() -> None:
    """TTSEngineManager.get_engine(LATEST_VERSION) で最新版の TTS エンジンを取得できる。"""
    # Inputs
    tts_engines = TTSEngineManager()
    tts_engine1 = MockTTSEngine()
    tts_engine2 = MockTTSEngine()
    tts_engine3 = MockTTSEngine()
    tts_engines.register_engine(tts_engine1, "0.0.1")
    tts_engines.register_engine(tts_engine2, "0.0.2")
    tts_engines.register_engine(tts_engine3, "0.1.0")
    # Expects
    true_acquired_tts_engine = tts_engine3
    # Outputs
    acquired_tts_engine = tts_engines.get_engine(LATEST_VERSION)

    # Test
    assert true_acquired_tts_engine == acquired_tts_engine


def test_tts_engines_get_engine_missing() -> None:
    """TTSEngineManager.get_engine() で存在しない TTS エンジンを取得しようとするとエラーになる。"""
    # Inputs
    tts_engines = TTSEngineManager()
    tts_engine1 = MockTTSEngine()
    tts_engine2 = MockTTSEngine()
    tts_engines.register_engine(tts_engine1, "0.0.1")
    tts_engines.register_engine(tts_engine2, "0.0.2")

    # Test
    with pytest.raises(HTTPException) as _:
        tts_engines.get_engine("0.0.3")