diff --git a/client/tests/client/testcfg.py b/client/tests/client/testcfg.py
index b5042f32f5c..7d2c2ab5d69 100644
--- a/client/tests/client/testcfg.py
+++ b/client/tests/client/testcfg.py
@@ -2,13 +2,8 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
-import os
-import test
-
-from os.path import join, exists
-
-import testing
+from testing import test_configuration
 
 def GetConfiguration(context, root):
-  return testing.BrowserTestConfiguration(
+  return test_configuration.BrowserTestConfiguration(
       context, root, fatal_static_type_errors=True)
diff --git a/client/tests/dartc/testcfg.py b/client/tests/dartc/testcfg.py
index 97a941b31a2..efeb28356b3 100644
--- a/client/tests/dartc/testcfg.py
+++ b/client/tests/dartc/testcfg.py
@@ -2,14 +2,14 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
-import testing
+from testing import test_configuration
 
 def GetConfiguration(context, root):
   return ClientCompilationTestConfiguration(context, root)
 
 
 class  ClientCompilationTestConfiguration(
-    testing.CompilationTestConfiguration):
+    test_configuration.CompilationTestConfiguration):
  def __init__(self, context, root):
     super(ClientCompilationTestConfiguration, self).__init__(context, root)
 
diff --git a/co19/tests/co19/testcfg.py b/co19/tests/co19/testcfg.py
index b84739611c0..484c20cc25f 100644
--- a/co19/tests/co19/testcfg.py
+++ b/co19/tests/co19/testcfg.py
@@ -2,13 +2,14 @@
 # for details. All rights reserved. Use of this source code is governed by a 
 # BSD-style license that can be found in the LICENSE file.
 
+
 import os
+from os.path import join, exists
 import re
+
 import test
 import utils
 
-from os.path import join, exists
-
 
 class Error(Exception):
   pass
diff --git a/compiler/tests/dart/testcfg.py b/compiler/tests/dart/testcfg.py
index 2df39433e47..b7d3e13f3c4 100644
--- a/compiler/tests/dart/testcfg.py
+++ b/compiler/tests/dart/testcfg.py
@@ -2,7 +2,7 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
-import testing
+from testing import test_configuration
 
 def GetConfiguration(context, root):
-  return testing.StandardTestConfiguration(context, root)
+  return test_configuration.StandardTestConfiguration(context, root)
diff --git a/compiler/tests/dartc/testcfg.py b/compiler/tests/dartc/testcfg.py
index 3597ccffa8c..f28a4269103 100644
--- a/compiler/tests/dartc/testcfg.py
+++ b/compiler/tests/dartc/testcfg.py
@@ -4,11 +4,13 @@
 # BSD-style license that can be found in the LICENSE file.
 
 import os
+from os.path import join, exists
 import re
+
 import test
 import utils
 
-from os.path import join, exists
+
 
 class JUnitTestCase(test.TestCase):
   def __init__(self, path, context, classnames, mode, arch):
diff --git a/runtime/tests/dart/testcfg.py b/runtime/tests/dart/testcfg.py
index 2df39433e47..b7d3e13f3c4 100644
--- a/runtime/tests/dart/testcfg.py
+++ b/runtime/tests/dart/testcfg.py
@@ -2,7 +2,7 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
-import testing
+from testing import test_configuration
 
 def GetConfiguration(context, root):
-  return testing.StandardTestConfiguration(context, root)
+  return test_configuration.StandardTestConfiguration(context, root)
diff --git a/runtime/tests/vm/testcfg.py b/runtime/tests/vm/testcfg.py
index ea4c1b2495b..fa0ff011740 100644
--- a/runtime/tests/vm/testcfg.py
+++ b/runtime/tests/vm/testcfg.py
@@ -3,10 +3,10 @@
 # BSD-style license that can be found in the LICENSE file.
 
 import os
-import test
-
 from os.path import join, exists
 
+import test
+
 class VmTestCase(test.TestCase):
   def __init__(self, path, context, mode, arch, flags):
     super(VmTestCase, self).__init__(context, path)
diff --git a/tests/corelib/testcfg.py b/tests/corelib/testcfg.py
index 2df39433e47..b7d3e13f3c4 100644
--- a/tests/corelib/testcfg.py
+++ b/tests/corelib/testcfg.py
@@ -2,7 +2,7 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
-import testing
+from testing import test_configuration
 
 def GetConfiguration(context, root):
-  return testing.StandardTestConfiguration(context, root)
+  return test_configuration.StandardTestConfiguration(context, root)
diff --git a/tests/isolate/testcfg.py b/tests/isolate/testcfg.py
index 2df39433e47..b7d3e13f3c4 100644
--- a/tests/isolate/testcfg.py
+++ b/tests/isolate/testcfg.py
@@ -2,7 +2,7 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
-import testing
+from testing import test_configuration
 
 def GetConfiguration(context, root):
-  return testing.StandardTestConfiguration(context, root)
+  return test_configuration.StandardTestConfiguration(context, root)
diff --git a/tests/language/testcfg.py b/tests/language/testcfg.py
index 2df39433e47..b7d3e13f3c4 100644
--- a/tests/language/testcfg.py
+++ b/tests/language/testcfg.py
@@ -2,7 +2,7 @@
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
-import testing
+from testing import test_configuration
 
 def GetConfiguration(context, root):
-  return testing.StandardTestConfiguration(context, root)
+  return test_configuration.StandardTestConfiguration(context, root)
diff --git a/tests/stub-generator/testcfg.py b/tests/stub-generator/testcfg.py
index 6017d18526d..0d436fac060 100644
--- a/tests/stub-generator/testcfg.py
+++ b/tests/stub-generator/testcfg.py
@@ -6,13 +6,14 @@ import os
 import re
 import shutil
 import tempfile
+
 import test
-import testing
+from testing import test_case,test_configuration
 import utils
 
 from os.path import join, exists, isdir
 
-class DartStubTestCase(testing.StandardTestCase):
+class DartStubTestCase(test_case.StandardTestCase):
   def __init__(self, context, path, filename, mode, arch):
     super(DartStubTestCase, self).__init__(context, path, filename, mode, arch)
     self.filename = filename
@@ -71,7 +72,7 @@ class DartStubTestCase(testing.StandardTestCase):
     return command
 
 
-class DartStubTestConfiguration(testing.StandardTestConfiguration):
+class DartStubTestConfiguration(test_configuration.StandardTestConfiguration):
   def __init__(self, context, root):
     super(DartStubTestConfiguration, self).__init__(context, root)
 
diff --git a/tools/testing/__init__.py b/tools/testing/__init__.py
new file mode 100644
index 00000000000..c0541ffc1d5
--- /dev/null
+++ b/tools/testing/__init__.py
@@ -0,0 +1,3 @@
+# Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+# for details. All rights reserved. Use of this source code is governed by a
+# BSD-style license that can be found in the LICENSE file.
diff --git a/tools/testing/test_case.py b/tools/testing/test_case.py
new file mode 100644
index 00000000000..62e99093574
--- /dev/null
+++ b/tools/testing/test_case.py
@@ -0,0 +1,143 @@
+# Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+# for details. All rights reserved. Use of this source code is governed by a
+# BSD-style license that can be found in the LICENSE file.
+
+import atexit
+import fileinput
+import os
+import test
+import platform
+import re
+import run
+import sys
+import tempfile
+
+import test
+import utils
+
+from os.path import join, exists, basename
+
+import utils
+
+class Error(Exception):
+  pass
+
+
+class StandardTestCase(test.TestCase):
+  def __init__(self, context, path, filename, mode, arch):
+    super(StandardTestCase, self).__init__(context, path)
+    self.filename = filename
+    self.mode = mode
+    self.arch = arch
+    self.run_arch = run.GetArchitecture(self.arch, self.mode, self.filename)
+    for flag in context.flags:
+      self.run_arch.vm_options.append(flag)
+
+  def IsNegative(self):
+    return self.GetName().endswith("NegativeTest")
+
+  def GetLabel(self):
+    return "%s%s %s" % (self.mode, self.arch, '/'.join(self.path))
+
+  def GetCommand(self):
+    return self.run_arch.GetRunCommand();
+
+  def GetName(self):
+    return self.path[-1]
+
+  def GetPath(self):
+    return os.path.dirname(self.filename)
+
+  def GetSource(self):
+    return file(self.filename).read()
+
+
+class MultiTestCase(StandardTestCase):
+
+  def __init__(self, context, path, filename, kind, mode, arch):
+    super(MultiTestCase, self).__init__(context, path, filename, mode, arch)
+    self.kind = kind
+
+  def GetCommand(self):
+    return self.run_arch.GetRunCommand(
+      fatal_static_type_errors=(self.kind == 'static type error'));
+
+  def IsNegative(self):
+    if self.kind == 'compile-time error':
+      return True
+    if self.kind == 'runtime error':
+      return False
+    if self.kind == 'static type error':
+      return self.run_arch.HasFatalTypeErrors()
+    return False
+
+class BrowserTestCase(StandardTestCase):
+  def __init__(self, context, path, filename,
+               fatal_static_type_errors, mode, arch):
+    super(BrowserTestCase, self).__init__(context, path, filename, mode, arch)
+    self.fatal_static_type_errors = fatal_static_type_errors
+
+      
+  def Run(self):
+    command = self.run_arch.GetCompileCommand(self.fatal_static_type_errors)
+    if command != None:
+      # We change the directory where dartc will be launched because
+      # it is not predictable on the location of the compiled file. In
+      # case the test is a web test, we make sure the app file is not
+      # in a subdirectory.
+      cwd = None
+      if self.run_arch.is_web_test: cwd = self.run_arch.temp_dir
+      command = command[:1] + self.context.flags + command[1:]
+      test_output = self.RunCommand(command, cwd=cwd)
+
+      # If errors were found, fail fast and show compile errors:
+      if test_output.output.exit_code != 0:
+        if not self.context.keep_temporary_files:
+          self.run_arch.Cleanup()
+        return test_output
+
+    command = self.run_arch.GetRunCommand();
+    test_output = self.RunCommand(command)
+    # The return value of DumpRenderedTree does not indicate test failing, but
+    # the output does.
+    if self.run_arch.HasFailed(test_output.output.stdout):
+      test_output.output.exit_code = 1
+
+    # TODO(ngeoffray): We run out of space on the build bots for these tests if
+    # the temp directories are not removed right after running the test.
+    if not self.context.keep_temporary_files:
+      self.run_arch.Cleanup()
+
+    return test_output
+
+
+class CompilationTestCase(test.TestCase):
+  """ Run the dartc compiler on a given top level dart file """  
+  def __init__(self, path, context, filename, mode, arch):
+    super(CompilationTestCase, self).__init__(context, path)
+    self.filename = filename
+    self.mode = mode
+    self.arch = arch
+    self.run_arch = run.GetArchitecture(self.arch, self.mode,
+                                        self.filename)
+    self.temp_dir = tempfile.mkdtemp(prefix='dartc-output-')
+
+  def IsNegative(self):
+    return False
+
+  def GetLabel(self):
+    return "%s/%s %s" % (self.mode, self.arch, '/'.join(self.path))
+
+  def GetCommand(self):
+    cmd = self.context.GetDartC(self.mode, self.arch);
+    cmd += self.context.flags
+    cmd += ['-check-only', 
+            '-fatal-type-errors',
+            '-Werror',
+            '-out', self.temp_dir,
+            self.filename]
+
+    return cmd
+
+  def GetName(self):
+    return self.path[-1]
diff --git a/tools/testing.py b/tools/testing/test_configuration.py
similarity index 72%
rename from tools/testing.py
rename to tools/testing/test_configuration.py
index a2601a41f2b..461bffbdd02 100644
--- a/tools/testing.py
+++ b/tools/testing/test_configuration.py
@@ -12,12 +12,13 @@ import run
 import sys
 import tempfile
 
+from testing import test_case
 import test
 import utils
 
 from os.path import join, exists, basename
 
-import utils # This is tools.utils
+import utils
 
 class Error(Exception):
   pass
@@ -25,55 +26,6 @@ class Error(Exception):
 class TestConfigurationError(Error):
   pass
 
-class StandardTestCase(test.TestCase):
-  def __init__(self, context, path, filename, mode, arch):
-    super(StandardTestCase, self).__init__(context, path)
-    self.filename = filename
-    self.mode = mode
-    self.arch = arch
-    self.run_arch = run.GetArchitecture(self.arch, self.mode, self.filename)
-    for flag in context.flags:
-      self.run_arch.vm_options.append(flag)
-
-  def IsNegative(self):
-    return self.GetName().endswith("NegativeTest")
-
-  def GetLabel(self):
-    return "%s%s %s" % (self.mode, self.arch, '/'.join(self.path))
-
-  def GetCommand(self):
-    return self.run_arch.GetRunCommand();
-
-  def GetName(self):
-    return self.path[-1]
-
-  def GetPath(self):
-    return os.path.dirname(self.filename)
-
-  def GetSource(self):
-    return file(self.filename).read()
-
-
-class MultiTestCase(StandardTestCase):
-
-  def __init__(self, context, path, filename, kind, mode, arch):
-    super(MultiTestCase, self).__init__(context, path, filename, mode, arch)
-    self.kind = kind
-
-  def GetCommand(self):
-    return self.run_arch.GetRunCommand(
-      fatal_static_type_errors=(self.kind == 'static type error'));
-
-  def IsNegative(self):
-    if self.kind == 'compile-time error':
-      return True
-    if self.kind == 'runtime error':
-      return False
-    if self.kind == 'static type error':
-      return self.run_arch.HasFatalTypeErrors()
-    return False
-
-
 class StandardTestConfiguration(test.TestConfiguration):
   LEGAL_KINDS = set(['compile-time error',
                      'runtime error',
@@ -106,7 +58,7 @@ class StandardTestConfiguration(test.TestConfiguration):
       if tags:
         return []
       else:
-        return [BrowserTestCase(
+        return [test_case.BrowserTestCase(
             self.context, test_path, filename, False, mode, arch)]
     else:
       tests = []
@@ -115,18 +67,11 @@ class StandardTestConfiguration(test.TestConfiguration):
           kind, test_source = tags[tag]
           if not self.Contains(path, test_path + [tag]):
             continue
-          tests.append(MultiTestCase(self.context,
-                                     test_path + [tag],
-                                     test_source,
-                                     kind,
-                                     mode,
-                                     arch))
+          tests.append(test_case.MultiTestCase(self.context,
+              test_path + [tag], test_source, kind, mode, arch))
       else:
-        tests.append(StandardTestCase(self.context,
-                                      test_path,
-                                      filename,
-                                      mode,
-                                      arch))
+        tests.append(test_case.StandardTestCase(self.context,
+            test_path, filename, mode, arch))
       return tests
 
   def ListTests(self, current_path, path, mode, arch):
@@ -201,12 +146,15 @@ class StandardTestConfiguration(test.TestConfiguration):
     tests['none'] = ('', test_filename)
     return tests
 
-class BrowserTestCase(StandardTestCase):
+class BrowserTestCase(test_case.StandardTestCase):
   def __init__(self, context, path, filename,
                fatal_static_type_errors, mode, arch):
-    super(BrowserTestCase, self).__init__(context, path, filename, mode, arch)
+    super(test_case.BrowserTestCase, self).__init__(context, path, filename, mode, arch)
     self.fatal_static_type_errors = fatal_static_type_errors
 
+  def IsBatchable(self):
+    return True
+      
   def Run(self):
     command = self.run_arch.GetCompileCommand(self.fatal_static_type_errors)
     if command != None:
@@ -253,12 +201,9 @@ class BrowserTestConfiguration(StandardTestConfiguration):
         test_path = current_path + relative + [os.path.splitext(f)[0]]
         if not self.Contains(path, test_path):
           continue
-        tests.append(BrowserTestCase(self.context,
-                                     test_path,
-                                     join(root, f),
-                                     self.fatal_static_type_errors,
-                                     mode,
-                                     arch))
+        tests.append(test_case.BrowserTestCase(self.context,
+            test_path, join(root, f), self.fatal_static_type_errors, mode,
+            arch))
     atexit.register(lambda: self._cleanup(tests))
     return tests
 
@@ -266,38 +211,6 @@ class BrowserTestConfiguration(StandardTestConfiguration):
     return name.endswith('_tests.dart')
 
 
-class CompilationTestCase(test.TestCase):
-  """ Run the dartc compiler on a given top level dart file """  
-  def __init__(self, path, context, filename, mode, arch):
-    super(CompilationTestCase, self).__init__(context, path)
-    self.filename = filename
-    self.mode = mode
-    self.arch = arch
-    self.run_arch = run.GetArchitecture(self.arch, self.mode,
-                                        self.filename)
-    self.temp_dir = tempfile.mkdtemp(prefix='dartc-output-')
-
-  def IsNegative(self):
-    return False
-
-  def GetLabel(self):
-    return "%s/%s %s" % (self.mode, self.arch, '/'.join(self.path))
-
-  def GetCommand(self):
-    cmd = self.context.GetDartC(self.mode, self.arch);
-    cmd += self.context.flags
-    cmd += ['-check-only', 
-            '-fatal-type-errors',
-            '-Werror',
-            '-out', self.temp_dir,
-            self.filename]
-
-    return cmd
-
-  def GetName(self):
-    return self.path[-1]
-
-
 class CompilationTestConfiguration(test.TestConfiguration):
   """ Configuration that searches specific directories for apps to compile
 
@@ -324,7 +237,7 @@ class CompilationTestConfiguration(test.TestConfiguration):
           if ((not self.Contains(path, test_path)) 
               or (not self.IsTest(test_dart_file))):
             continue
-          tests.append(CompilationTestCase(test_path,
+          tests.append(test_case.CompilationTestCase(test_path,
                                            self.context,
                                            test_dart_file,
                                            mode,
@@ -359,7 +272,3 @@ class CompilationTestConfiguration(test.TestConfiguration):
     if not utils.Daemonize(): return
     os.execlp('rm', *(['rm', '-rf'] + [t.temp_dir for t in tests]))
     raise
-
-
-def GetConfiguration(context, root):
-  return CompilationTestConfiguration(context, root)