improve has_attr plugin tests

tests/plugins/test_logging.py

@@ -1,11 +0,0 @@
-import pytest
-
-import amqtt.plugins.logging
-
-
-def test_EventLoggerPlugin_getattr():
-    logger = amqtt.plugins.logging.EventLoggerPlugin(None)
-    with pytest.raises(AttributeError) as exc:
-        logger.foo
-
-    assert "foo" in str(exc.value)

tests/plugins/test_plugins.py

@@ -0,0 +1,52 @@
+import inspect
+from logging import getLogger
+from os.path import join, dirname, isfile
+
+import pytest
+
+import amqtt.plugins
+from glob import glob
+
+from amqtt.plugins.manager import BaseContext
+
+_INVALID_METHOD = "invalid_foo"
+_PLUGIN = "Plugin"
+
+
+class _TestContext(BaseContext):
+    def __init__(self):
+        super().__init__()
+        self.config = {"auth": {}}
+        self.logger = getLogger(__file__)
+
+
+def _verify_module(module, plugin_module_name):
+    if not module.__name__.startswith(plugin_module_name):
+        return
+
+    for name, clazz in inspect.getmembers(module, inspect.isclass):
+        if not name.endswith(_PLUGIN) or name == _PLUGIN:
+            continue
+
+        obj = clazz(_TestContext())
+        with pytest.raises(AttributeError, match=f"'{name}' object has no attribute '{_INVALID_METHOD}'"):
+            getattr(obj, _INVALID_METHOD)
+        assert hasattr(obj, _INVALID_METHOD) is False
+
+
+    for name, obj in inspect.getmembers(module, inspect.ismodule):
+        _verify_module(obj, plugin_module_name)
+
+
+def test_plugins_correct_has_attr():
+    module = amqtt.plugins
+    for file in glob(join(dirname(module.__file__), "**/*.py"), recursive=True):
+        if not isfile(file):
+            continue
+
+        name = file.replace("/", ".")
+        name = name[name.find(module.__name__) : -3].removesuffix(".__init__")
+
+        __import__(name)
+
+    _verify_module(module, module.__name__)