Stop testrunner.py from recursing into the 'build-base' directory created by setup.py.

doc/CHANGES.txt

@@ -100,6 +100,9 @@ Zope Changes
 
     Bugs fixed
 
+     - Stop testrunner.py from recursing into the 'build-base' directory
+       created by setup.py.
+
      - Collector #1074: Change Scripts' __name__ to None
 
      - Range searches with KeywordIndexes did not work with record-style

utilities/testrunner.py

@@ -128,9 +128,10 @@ class TestRunner:
     def listTestableNames(self, pathname):
         """Return a list of the names to be traversed to build tests."""
         names = os.listdir(pathname)
-        if "build" in names:
-            # Don't recurse into build directories created by setup.py
-            names.remove("build")
+        for ignore in ('build', 'build-base'):
+            if ignore in names:
+                # Don't recurse into build directories created by setup.py
+                names.remove(ignore)
         if '.testinfo' in names:  # allow local control
             f = open(os.path.join(pathname, '.testinfo'))
             lines = filter(None, f.readlines())