Added layer declarations to take advantage of the test runner's

ability to run layers in parallel.  This reduces test run time my more
than 75% for me.

src/ZEO/tests/testConnection.py

@@ -22,6 +22,7 @@ import unittest
 # Import the actual test class
 from ZEO.tests import ConnectionTests, InvalidationTests
 from zope.testing import doctest, setupstack
+import ZODB.tests.util
 
 class FileStorageConfig:
     def getConfig(self, path, create, read_only):
@@ -139,6 +140,7 @@ def test_suite():
         'invalidations_while_connecting.test',
         setUp=setupstack.setUpDirectory, tearDown=setupstack.tearDown,
         ))
+    suite.layer = ZODB.tests.util.MininalTestLayer('ZEO Connection Tests')
     return suite
 
 

src/ZEO/tests/testZEO.py

@@ -1099,10 +1099,13 @@ test_classes = [FileStorageTests, FileStorageRecoveryTests,
 
 def test_suite():
     suite = unittest.TestSuite()
+    suite.addTest(unittest.makeSuite(ZODB.tests.util.AAAA_Test_Runner_Hack))
     suite.addTest(doctest.DocTestSuite(
         setUp=zope.testing.setupstack.setUpDirectory,
         tearDown=zope.testing.setupstack.tearDown))
-    suite.addTest(doctest.DocFileSuite('registerDB.test'))
+    suite.addTest(doctest.DocFileSuite(
+        'registerDB.test'
+        ))
     suite.addTest(
         doctest.DocFileSuite('zeo-fan-out.test',
                              setUp=zope.testing.setupstack.setUpDirectory,
@@ -1111,6 +1114,7 @@ def test_suite():
         )
     for klass in test_classes:
         sub = unittest.makeSuite(klass, "check")
+        sub.layer = ZODB.tests.util.MininalTestLayer(klass.__name__)
         suite.addTest(sub)
     return suite
 

src/ZODB/tests/util.py

@@ -61,3 +61,33 @@ class P(persistent.Persistent):
 
     def __repr__(self):
         return 'P(%s)' % self.name
+
+class MininalTestLayer:
+
+    __bases__ = ()
+    __module__ = ''
+    def __init__(self, name):
+        self.__name__ = name
+
+    def setUp(self):
+        self.here = os.getcwd()
+        self.tmp = tempfile.mkdtemp(self.__name__, dir=os.getcwd())
+        os.chdir(self.tmp)
+
+    def tearDown(self):
+        os.chdir(self.here)
+        zope.testing.setupstack.rmtree(self.tmp)
+
+    testSetUp = testTearDown = lambda self: None
+
+class AAAA_Test_Runner_Hack(unittest.TestCase):
+    """Hack to work around a bug in the test runner.
+
+    The first later (lex sorted) is run first in the foreground
+    """
+
+    layer = MininalTestLayer('!no tests here!')
+
+    def testNothing(self):
+        pass
+