Implement directory based JSON task distribution tool.

JSON allows to exchange python dictionaries in safe and simple way.

So thanks to using directory where test results are posted, it is possible that call
external tool will call erunTestSuite, which would later attach to such directory
"x" and do "something" more with stored test results.

product/ERP5Type/tests/DummyTaskDistributionTool.py

+import json
 import threading
+import os
 
 class DummyTaskDistributionTool(object):
 
@@ -26,3 +28,45 @@ class DummyTaskDistributionTool(object):
 
   def stopUnitTest(self, test_path, status_dict):
     pass
+
+def jsondump(obj, fp):
+  json.dump(obj, fp, indent=4, sort_keys=True)
+
+class JSONFSTaskDistributionTool(object):
+  """Uses directory to store information"""
+  def __init__(self, directory):
+    if not os.path.isdir(directory):
+      raise ValueError('Directory %r does not exists.' % directory)
+    self.directory = os.path.abspath(directory)
+    self.lock = threading.Lock()
+    self.file_index = 1
+
+  def createTestResult(self, name, revision, test_name_list, allow_restart,
+      *args):
+    jsondump(dict(name=name, revision=revision, test_name_list=test_name_list,
+      allow_restart=allow_restart, args=args),
+      open(os.path.join(self.directory, 'createTestResult.json'), 'w'))
+    self.test_name_list = list(test_name_list)
+    return self.directory, revision
+
+  def updateTestResult(self, name, revision, test_name_list):
+    raise NotImplementedError
+
+  def startUnitTest(self, test_result_path, exclude_list=()):
+    self.lock.acquire()
+    try:
+      for i, test in enumerate(self.test_name_list):
+        if test not in exclude_list:
+          jsondump(dict(test_result_path=test_result_path,
+            exclude_list=exclude_list,),
+            open(os.path.join(self.directory, 'startUnitTest.%s.json' % test),
+                'w'))
+          del self.test_name_list[i]
+          return test, test
+    finally:
+      self.lock.release()
+
+  def stopUnitTest(self, test_path, status_dict):
+    jsondump(dict(test_path=test_path, status_dict=status_dict),
+        open(os.path.join(self.directory, 'stopUnitTest.%s.json' % test_path),
+        'w'))

product/ERP5Type/tests/runTestSuite.py

 #!/usr/bin/python2.6
 import argparse, pprint, socket, sys, time, xmlrpclib
-from DummyTaskDistributionTool import DummyTaskDistributionTool
+import DummyTaskDistributionTool
 from ERP5TypeTestSuite import ERP5TypeTestSuite
 
 def makeSuite(node_quantity=None, test_suite=None, revision=None,
@@ -55,6 +55,9 @@ def main():
   parser.add_argument('--master_url',
                       help='The Url of Master controling many suites',
                       default=None)
+  parser.add_argument('--master_directory',
+                      help='Directory to simulate master',
+                      default=None)
   parser.add_argument('--db_list', help='A list of sql connection strings')
   # parameters that needs to be passed to runUnitTest
   parser.add_argument('--conversion_server_hostname', default=None)
@@ -73,8 +76,11 @@ def main():
               (master_url, 'portal_task_distribution'),
               allow_none=1)
     assert master.getProtocolRevision() == 1
+  elif args.master_directory is not None:
+    master = DummyTaskDistributionTool.JSONFSTaskDistributionTool(
+        args.master_directory)
   else:
-    master = DummyTaskDistributionTool()
+    master = DummyTaskDistributionTool.DummyTaskDistributionTool()
   test_suite_title = args.test_suite_title or args.test_suite
   revision = args.revision
   suite = makeSuite(test_suite=args.test_suite,