Ausgabe der neuen DB Einträge

venv/lib/python3.9/site-packages/twisted/python/test/test_inotify.py

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+# Copyright (c) Twisted Matrix Laboratories.
+# See LICENSE for details.
+
+"""
+Tests for L{twisted.python._inotify}.
+"""
+
+from twisted.trial.unittest import TestCase
+from twisted.python.filepath import FilePath
+from twisted.python.runtime import platform
+
+if platform.supportsINotify():
+    from ctypes import c_int, c_uint32, c_char_p
+    from twisted.python import _inotify
+    from twisted.python._inotify import (
+        INotifyError, initializeModule, init, add)
+else:
+    _inotify = None
+
+
+
+class INotifyTests(TestCase):
+    """
+    Tests for L{twisted.python._inotify}.
+    """
+    if _inotify is None:
+        skip = "This platform doesn't support INotify."
+
+    def test_missingInit(self):
+        """
+        If the I{libc} object passed to L{initializeModule} has no
+        C{inotify_init} attribute, L{ImportError} is raised.
+        """
+        class libc:
+            def inotify_add_watch(self):
+                pass
+            def inotify_rm_watch(self):
+                pass
+        self.assertRaises(ImportError, initializeModule, libc())
+
+
+    def test_missingAdd(self):
+        """
+        If the I{libc} object passed to L{initializeModule} has no
+        C{inotify_add_watch} attribute, L{ImportError} is raised.
+        """
+        class libc:
+            def inotify_init(self):
+                pass
+            def inotify_rm_watch(self):
+                pass
+        self.assertRaises(ImportError, initializeModule, libc())
+
+
+    def test_missingRemove(self):
+        """
+        If the I{libc} object passed to L{initializeModule} has no
+        C{inotify_rm_watch} attribute, L{ImportError} is raised.
+        """
+        class libc:
+            def inotify_init(self):
+                pass
+            def inotify_add_watch(self):
+                pass
+        self.assertRaises(ImportError, initializeModule, libc())
+
+
+    def test_setTypes(self):
+        """
+        If the I{libc} object passed to L{initializeModule} has all of the
+        necessary attributes, it sets the C{argtypes} and C{restype} attributes
+        of the three ctypes methods used from libc.
+        """
+        class libc:
+            def inotify_init(self):
+                pass
+            inotify_init = staticmethod(inotify_init)
+
+            def inotify_rm_watch(self):
+                pass
+            inotify_rm_watch = staticmethod(inotify_rm_watch)
+
+            def inotify_add_watch(self):
+                pass
+            inotify_add_watch = staticmethod(inotify_add_watch)
+
+        c = libc()
+        initializeModule(c)
+        self.assertEqual(c.inotify_init.argtypes, [])
+        self.assertEqual(c.inotify_init.restype, c_int)
+
+        self.assertEqual(c.inotify_rm_watch.argtypes, [c_int, c_int])
+        self.assertEqual(c.inotify_rm_watch.restype, c_int)
+
+        self.assertEqual(
+            c.inotify_add_watch.argtypes, [c_int, c_char_p, c_uint32])
+        self.assertEqual(c.inotify_add_watch.restype, c_int)
+
+
+    def test_failedInit(self):
+        """
+        If C{inotify_init} returns a negative number, L{init} raises
+        L{INotifyError}.
+        """
+        class libc:
+            def inotify_init(self):
+                return -1
+        self.patch(_inotify, 'libc', libc())
+        self.assertRaises(INotifyError, init)
+
+
+    def test_failedAddWatch(self):
+        """
+        If C{inotify_add_watch} returns a negative number, L{add}
+        raises L{INotifyError}.
+        """
+        class libc:
+            def inotify_add_watch(self, fd, path, mask):
+                return -1
+        self.patch(_inotify, 'libc', libc())
+        self.assertRaises(INotifyError, add, 3, FilePath('/foo'), 0)