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https://github.com/denizsafak/abogen.git
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Artem Akymenko
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437 lines
19 KiB
Python
437 lines
19 KiB
Python
"""Comprehensive tests for the plugin loader infrastructure.
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These tests verify that the loader correctly:
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- Discovers plugins in directories
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- Imports plugin modules
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- Validates PLUGIN_MANIFEST, MODEL_REQUIREMENTS, create_engine
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- Validates api_version compatibility
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- Validates capabilities
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- Provides diagnostic messages for errors
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- Rejects invalid plugins
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"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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import pytest
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from abogen.tts_plugin.loader import (
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HOST_API_VERSION,
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PluginLoadError,
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PluginLoadResult,
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_check_api_version_compatibility,
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_parse_api_version,
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_validate_api_version,
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_validate_capabilities,
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_validate_manifest,
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discover_plugins,
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load_plugin,
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load_plugin_from_dir,
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)
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from abogen.tts_plugin.manifest import (
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EngineManifest,
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ModelManifest,
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PluginManifest,
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)
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# ──────────────────────────────────────────────────────────────
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# Path fixtures
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# ──────────────────────────────────────────────────────────────
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@pytest.fixture
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def plugins_dir() -> Path:
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return Path(__file__).parent.parent / "plugins"
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@pytest.fixture
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def fake_plugin_dir(plugins_dir: Path) -> Path:
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return plugins_dir / "fake_plugin"
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@pytest.fixture
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def missing_manifest_dir(plugins_dir: Path) -> Path:
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return plugins_dir / "missing_manifest"
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@pytest.fixture
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def invalid_api_version_dir(plugins_dir: Path) -> Path:
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return plugins_dir / "invalid_api_version"
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@pytest.fixture
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def invalid_capabilities_dir(plugins_dir: Path) -> Path:
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return plugins_dir / "invalid_capabilities"
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@pytest.fixture
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def missing_create_engine_dir(plugins_dir: Path) -> Path:
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return plugins_dir / "missing_create_engine"
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@pytest.fixture
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def import_error_dir(plugins_dir: Path) -> Path:
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return plugins_dir / "import_error"
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@pytest.fixture
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def missing_model_requirements_dir(plugins_dir: Path) -> Path:
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return plugins_dir / "missing_model_requirements"
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# ──────────────────────────────────────────────────────────────
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# Unit tests: _parse_api_version
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# ──────────────────────────────────────────────────────────────
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class TestParseApiVersion:
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def test_valid_version(self) -> None:
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assert _parse_api_version("1.0") == (1, 0)
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assert _parse_api_version("2.5") == (2, 5)
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assert _parse_api_version("10.20") == (10, 20)
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def test_invalid_format(self) -> None:
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assert _parse_api_version("1") is None
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assert _parse_api_version("1.0.0") is None
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assert _parse_api_version("abc") is None
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assert _parse_api_version("") is None
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assert _parse_api_version("1.x") is None
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# ──────────────────────────────────────────────────────────────
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# Unit tests: _check_api_version_compatibility
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# ──────────────────────────────────────────────────────────────
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class TestCheckApiVersionCompatibility:
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def test_compatible_version(self) -> None:
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assert _check_api_version_compatibility("1.0") is None
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assert _check_api_version_compatibility("1.5") is None
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def test_major_mismatch(self) -> None:
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error = _check_api_version_compatibility("2.0")
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assert error is not None
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assert "major mismatch" in error
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def test_invalid_format(self) -> None:
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error = _check_api_version_compatibility("invalid")
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assert error is not None
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assert "Invalid api_version format" in error
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# ──────────────────────────────────────────────────────────────
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# Unit tests: _validate_manifest
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# ──────────────────────────────────────────────────────────────
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class TestValidateManifest:
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def test_valid_manifest(self) -> None:
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class FakeModule:
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PLUGIN_MANIFEST = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="1.0", description="Test", author="Test",
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)
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MODEL_REQUIREMENTS: list = []
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create_engine = lambda *a, **kw: None
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errors = _validate_manifest(FakeModule(), Path("/tmp"))
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assert errors == []
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def test_missing_manifest(self) -> None:
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class FakeModule:
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MODEL_REQUIREMENTS: list = []
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create_engine = lambda *a, **kw: None
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errors = _validate_manifest(FakeModule(), Path("/tmp"))
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assert any("Missing PLUGIN_MANIFEST" in e for e in errors)
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def test_wrong_manifest_type(self) -> None:
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class FakeModule:
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PLUGIN_MANIFEST = "not a manifest"
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MODEL_REQUIREMENTS: list = []
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create_engine = lambda *a, **kw: None
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errors = _validate_manifest(FakeModule(), Path("/tmp"))
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assert any("PluginManifest instance" in e for e in errors)
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def test_missing_model_requirements(self) -> None:
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class FakeModule:
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PLUGIN_MANIFEST = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="1.0", description="Test", author="Test",
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)
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create_engine = lambda *a, **kw: None
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errors = _validate_manifest(FakeModule(), Path("/tmp"))
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assert any("Missing MODEL_REQUIREMENTS" in e for e in errors)
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def test_wrong_model_requirements_type(self) -> None:
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class FakeModule:
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PLUGIN_MANIFEST = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="1.0", description="Test", author="Test",
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)
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MODEL_REQUIREMENTS = "not a list"
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create_engine = lambda *a, **kw: None
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errors = _validate_manifest(FakeModule(), Path("/tmp"))
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assert any("must be a list" in e for e in errors)
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def test_invalid_model_requirements_item(self) -> None:
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class FakeModule:
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PLUGIN_MANIFEST = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="1.0", description="Test", author="Test",
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)
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MODEL_REQUIREMENTS = ["not a model manifest"]
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create_engine = lambda *a, **kw: None
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errors = _validate_manifest(FakeModule(), Path("/tmp"))
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assert any("ModelManifest instance" in e for e in errors)
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def test_missing_create_engine(self) -> None:
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class FakeModule:
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PLUGIN_MANIFEST = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="1.0", description="Test", author="Test",
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)
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MODEL_REQUIREMENTS: list = []
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errors = _validate_manifest(FakeModule(), Path("/tmp"))
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assert any("Missing create_engine" in e for e in errors)
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def test_create_engine_not_callable(self) -> None:
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class FakeModule:
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PLUGIN_MANIFEST = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="1.0", description="Test", author="Test",
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)
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MODEL_REQUIREMENTS: list = []
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create_engine = "not callable"
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errors = _validate_manifest(FakeModule(), Path("/tmp"))
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assert any("must be callable" in e for e in errors)
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# ──────────────────────────────────────────────────────────────
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# Unit tests: _validate_capabilities
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# ──────────────────────────────────────────────────────────────
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class TestValidateCapabilities:
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def test_valid_capabilities(self) -> None:
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manifest = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="1.0", description="Test", author="Test",
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capabilities=("voice_list", "preview"),
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)
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errors = _validate_capabilities(manifest)
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assert errors == []
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def test_unknown_capability(self) -> None:
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manifest = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="1.0", description="Test", author="Test",
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capabilities=("voice_list", "unknown_cap"),
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)
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errors = _validate_capabilities(manifest)
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assert any("unknown_cap" in e for e in errors)
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def test_empty_capabilities(self) -> None:
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manifest = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="1.0", description="Test", author="Test",
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capabilities=(),
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)
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errors = _validate_capabilities(manifest)
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assert errors == []
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# ──────────────────────────────────────────────────────────────
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# Unit tests: _validate_api_version
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# ──────────────────────────────────────────────────────────────
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class TestValidateApiVersion:
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def test_compatible(self) -> None:
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manifest = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="1.0", description="Test", author="Test",
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)
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errors = _validate_api_version(manifest)
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assert errors == []
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def test_incompatible(self) -> None:
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manifest = PluginManifest(
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id="test", name="Test", version="1.0.0",
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api_version="2.0", description="Test", author="Test",
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)
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errors = _validate_api_version(manifest)
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assert len(errors) > 0
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# ──────────────────────────────────────────────────────────────
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# Integration tests: load_plugin_from_dir
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# ──────────────────────────────────────────────────────────────
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class TestLoadPluginFromDir:
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def test_load_valid_plugin(self, fake_plugin_dir: Path) -> None:
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result = load_plugin_from_dir(fake_plugin_dir)
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assert result.success is True
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assert result.manifest is not None
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assert result.manifest.id == "fake_plugin"
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assert result.model_requirements is not None
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assert result.create_engine is not None
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assert result.module is not None
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assert result.error is None
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def test_plugin_satisfies_protocol(self, fake_plugin_dir: Path) -> None:
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from abogen.tts_plugin.engine import Engine
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from abogen.tts_plugin.host_context import HostContext
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import logging
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result = load_plugin_from_dir(fake_plugin_dir)
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assert result.success is True
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# Create engine using the loaded create_engine function
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ctx = HostContext(
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config_dir=Path("/tmp/test"),
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logger=logging.getLogger("test"),
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http_client=type("FakeClient", (), {"get": lambda s, **kw: None, "post": lambda s, **kw: None})(),
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)
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engine = result.create_engine(ctx, None, __import__("abogen.tts_plugin.types", fromlist=["EngineConfig"]).EngineConfig())
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assert isinstance(engine, Engine)
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engine.dispose()
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def test_nonexistent_directory(self, tmp_path: Path) -> None:
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result = load_plugin_from_dir(tmp_path / "nonexistent")
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assert result.success is False
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assert result.error is not None
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assert "does not exist" in result.error.errors[0]
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def test_missing_init_file(self, tmp_path: Path) -> None:
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plugin_dir = tmp_path / "no_init"
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plugin_dir.mkdir()
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result = load_plugin_from_dir(plugin_dir)
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assert result.success is False
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assert result.error is not None
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assert "__init__.py" in result.error.errors[0]
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def test_import_error(self, import_error_dir: Path) -> None:
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result = load_plugin_from_dir(import_error_dir)
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assert result.success is False
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assert result.error is not None
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assert "Failed to import" in result.error.errors[0]
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# ──────────────────────────────────────────────────────────────
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# Integration tests: invalid plugins
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# ──────────────────────────────────────────────────────────────
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class TestInvalidPlugins:
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def test_missing_manifest(self, missing_manifest_dir: Path) -> None:
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result = load_plugin_from_dir(missing_manifest_dir)
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assert result.success is False
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assert result.error is not None
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assert any("Missing PLUGIN_MANIFEST" in e for e in result.error.errors)
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def test_invalid_api_version(self, invalid_api_version_dir: Path) -> None:
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result = load_plugin_from_dir(invalid_api_version_dir)
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assert result.success is False
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assert result.error is not None
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assert any("major mismatch" in e for e in result.error.errors)
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def test_invalid_capabilities(self, invalid_capabilities_dir: Path) -> None:
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result = load_plugin_from_dir(invalid_capabilities_dir)
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assert result.success is False
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assert result.error is not None
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assert any("Unknown capability" in e for e in result.error.errors)
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def test_missing_create_engine(self, missing_create_engine_dir: Path) -> None:
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result = load_plugin_from_dir(missing_create_engine_dir)
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assert result.success is False
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assert result.error is not None
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assert any("Missing create_engine" in e for e in result.error.errors)
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def test_missing_model_requirements(self, missing_model_requirements_dir: Path) -> None:
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result = load_plugin_from_dir(missing_model_requirements_dir)
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assert result.success is False
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assert result.error is not None
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assert any("Missing MODEL_REQUIREMENTS" in e for e in result.error.errors)
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# ──────────────────────────────────────────────────────────────
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# Integration tests: discover_plugins
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# ──────────────────────────────────────────────────────────────
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class TestDiscoverPlugins:
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def test_discover_from_valid_dir(self, plugins_dir: Path) -> None:
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results = discover_plugins([plugins_dir])
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# Should find multiple plugins (valid and invalid)
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assert len(results) > 0
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def test_discover_includes_valid_plugin(self, plugins_dir: Path) -> None:
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results = discover_plugins([plugins_dir])
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valid = [r for r in results if r.success]
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assert len(valid) >= 1
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assert any(r.manifest and r.manifest.id == "fake_plugin" for r in valid)
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def test_discover_includes_invalid_plugins(self, plugins_dir: Path) -> None:
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results = discover_plugins([plugins_dir])
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invalid = [r for r in results if not r.success]
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assert len(invalid) >= 1
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def test_discover_nonexistent_dir(self, tmp_path: Path) -> None:
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results = discover_plugins([tmp_path / "nonexistent"])
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assert results == []
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def test_discover_multiple_dirs(self, plugins_dir: Path, tmp_path: Path) -> None:
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results = discover_plugins([plugins_dir, tmp_path / "nonexistent"])
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assert len(results) > 0
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# ──────────────────────────────────────────────────────────────
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# Diagnostic messages tests
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# ──────────────────────────────────────────────────────────────
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class TestDiagnosticMessages:
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def test_error_contains_plugin_id(self, missing_manifest_dir: Path) -> None:
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result = load_plugin_from_dir(missing_manifest_dir)
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assert result.error is not None
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assert result.error.plugin_id == "missing_manifest"
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def test_error_contains_path(self, missing_manifest_dir: Path) -> None:
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result = load_plugin_from_dir(missing_manifest_dir)
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assert result.error is not None
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assert result.error.path == missing_manifest_dir
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def test_error_contains_messages(self, missing_manifest_dir: Path) -> None:
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result = load_plugin_from_dir(missing_manifest_dir)
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assert result.error is not None
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assert len(result.error.errors) > 0
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def test_multiple_errors(self, invalid_api_version_dir: Path) -> None:
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# This plugin has multiple issues
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result = load_plugin_from_dir(invalid_api_version_dir)
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assert result.error is not None
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# Should have at least the api_version error
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assert len(result.error.errors) >= 1
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# ──────────────────────────────────────────────────────────────
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# No partial registration tests
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# ──────────────────────────────────────────────────────────────
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class TestNoPartialRegistration:
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def test_invalid_plugin_no_manifest_attr(self, missing_manifest_dir: Path) -> None:
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"""After failed load, module should not remain in sys.modules."""
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result = load_plugin_from_dir(missing_manifest_dir)
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assert result.success is False
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# Module should not be registered
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module_name = f"abogen.tts_plugin._loaded.missing_manifest"
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assert module_name not in sys.modules
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def test_import_error_no_registration(self, import_error_dir: Path) -> None:
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"""After import error, module should not remain in sys.modules."""
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result = load_plugin_from_dir(import_error_dir)
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assert result.success is False
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module_name = f"abogen.tts_plugin._loaded.import_error"
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assert module_name not in sys.modules
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