From 6e40cd75cd88ef930ced8c1df15ebc93dbf683d4 Mon Sep 17 00:00:00 2001
From: Barry Warsaw
Date: Mon, 30 Aug 2010 11:03:00 -0400
Subject: This is a better fix than the previous commit, since it uses a
 principled approach to finding the bin directory.  Thanks go to Gary Poster.

---
 src/mailman/testing/layers.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/mailman/testing')

diff --git a/src/mailman/testing/layers.py b/src/mailman/testing/layers.py
index 34dc46807..8f16d5940 100644
--- a/src/mailman/testing/layers.py
+++ b/src/mailman/testing/layers.py
@@ -217,6 +217,21 @@ class ConfigLayer(MockAndMonkeyLayer):
         if len(os.environ.get('MM_VERBOSE_TESTLOG', '').strip()) > 0:
             cls.stderr = True
 
+    # The top of our source tree, for tests that care (e.g. hooks.txt).
+    root_directory = None
+
+    @classmethod
+    def set_root_directory(cls, directory):
+        """Set the directory at the root of our source tree.
+
+        zc.recipe.testrunner runs from parts/test/working-directory, but
+        that's actually changed over the life of the package.  Some tests
+        care, e.g. because they need to find our built-out bin directory.
+        Fortunately, buildout can give us this information.  See the
+        `buildout.cfg` file for where this method is called.
+        """
+        cls.root_directory = directory
+
 
 
 class SMTPLayer(ConfigLayer):
-- 
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