1 files changed, 23 insertions, 1 deletions
diff --git a/src/zope/component/tests/__init__.py b/src/zope/component/tests/__init__.py
index 65140f2..69e979e 100644
--- a/src/zope/component/tests/__init__.py
+++ b/src/zope/component/tests/__init__.py
@@ -1 +1,23 @@
-# tests package
+import unittest
+
+def skipIfNoSecurity(testfunc):
+    try:
+        import zope.security
+    except ImportError:
+        return unittest.skip("zope.security not installed")(testfunc)
+    return testfunc
+
+def fails_if_called(test, msg="This function must not be called.",
+                    arguments=True):
+    """
+    Return a new function (accepting any arguments)
+    that will call test.fail(msg) if it is called.
+
+    :keyword bool arguments: If set to ``False``, then we will
+        not accept any arguments. This can avoid
+        masking when we would expect a TypeError to be raised by
+        calling an instance method against a class.
+    """
+    if not arguments:
+        return lambda: test.fail(msg)
+    return lambda *_args, **__kwargs: test.fail(msg)