50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
"""插件加载器测试：三级路径查找(S07) / 缺失报错 / 实例隔离"""
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import pytest
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from pybot import plugin
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def test_find_builtin_module():
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"""包内置 modules/ 能找到 PCA9685"""
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path = plugin.find_module("PCA9685")
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assert path.name == "PCA9685.py"
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assert path.parent.name == "modules"
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def test_plugin_not_found():
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with pytest.raises(plugin.PluginNotFound) as ei:
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plugin.find_module("NoSuchDevice")
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assert "NoSuchDevice" in str(ei.value)
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assert "modules" in str(ei.value) # 报错含搜索路径
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def test_env_path_priority(tmp_path, monkeypatch):
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"""$PYBOT_MODULES_PATH 优先于包内置目录"""
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(tmp_path / "PCA9685.py").write_text(
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"def build(ctx): return {'from': 'env'}\n"
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"def call(ctx): return {}\n"
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"def destroy(ctx): return {}\n", encoding="utf-8")
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monkeypatch.setenv("PYBOT_MODULES_PATH", str(tmp_path))
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assert plugin.find_module("PCA9685") == tmp_path / "PCA9685.py"
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mod = plugin.load_module("PCA9685")
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assert mod.build({}) == {"from": "env"}
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def test_missing_protocol_function(tmp_path, monkeypatch):
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"""插件缺 build/call/destroy 任一函数即拒绝加载"""
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(tmp_path / "Broken.py").write_text(
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"def build(ctx): return {}\n", encoding="utf-8")
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monkeypatch.setenv("PYBOT_MODULES_PATH", str(tmp_path))
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with pytest.raises(plugin.PluginProtocolError):
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plugin.load_module("Broken")
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def test_independent_instances():
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"""每次加载新模块实例：模块级全局状态互不共享（对齐 Lua 每设备状态机）"""
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a = plugin.load_module("SPI")
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b = plugin.load_module("SPI")
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assert a is not b
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a._fd = 42
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assert b._fd == -1
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