Revert "ERP5TypeLiveTestCase: Remove FS reloader as ZODB Components should be used from now on."

This code is useful to run any unit test in a live instance. Until all products tests (like
ERP5/tests/*) are moved as components, this code is useful.

This reverts commit 9240d498.

product/ERP5Type/tests/ERP5TypeLiveTestCase.py

@@ -166,10 +166,31 @@ class ERP5TypeLiveTestCase(ERP5TypeTestCaseMixin):
 from Products.ERP5Type.dynamic.component_package import ComponentDynamicPackage
 from Products.ERP5Type.tests.runUnitTest import ERP5TypeTestLoader
 
-class ERP5TypeLiveTestLoader(ERP5TypeTestLoader):
-    """
-    ERP5Type Live Test loader which allows to load ZODB Components if any
+class ERP5TypeTestReLoader(ERP5TypeTestLoader):
+    """ERP5Type test re-loader supports reloading test modules before
+    running them.
     """
+
+    def __init__(self, filter_test_list=()):
+        super(ERP5TypeTestReLoader, self).__init__()
+        if len(filter_test_list):
+            # do not filter if no filter, otherwise no tests run
+            self.filter_test_list = filter_test_list
+
+    def loadTestsFromNames(self, test_list):
+        # ERP5TypeTestLoader is monkey-patched into unittest
+        # so we have to monkeypatch it in turn
+        if self.filter_test_list is not None:
+            old_filter_test_list = ERP5TypeTestLoader.filter_test_list
+            ERP5TypeTestLoader.filter_test_list = self.filter_test_list
+        try:
+            return super(ERP5TypeTestReLoader,
+                         self).loadTestsFromNames(test_list)
+        finally:
+            # and undo the monkeypatch afterwards
+            if self.filter_test_list:
+                ERP5TypeTestLoader.filter_test_list = old_filter_test_list
+
     def loadTestsFromName(self, name, module=None):
         """
         Load the test from the given name from ZODB if it can be imported,
@@ -183,13 +204,34 @@ class ERP5TypeLiveTestLoader(ERP5TypeTestLoader):
                            fromlist=['erp5.component.test'],
                            level=0)
             except ImportError:
-                raise
+                pass
             else:
                 module = erp5.component.test
 
-        return super(ERP5TypeLiveTestLoader, self).loadTestsFromName(name,
+        return super(ERP5TypeTestReLoader, self).loadTestsFromName(name,
                                                                    module)
 
+    def loadTestsFromModule(self, module):
+        """
+        If the module is not a ZODB Component, then reload it to consider
+        modifications on the filesystem
+        """
+        if not isinstance(getattr(module, '__loader__', None),
+                          ComponentDynamicPackage):
+            reload(module)
+        return super(ERP5TypeTestReLoader, self).loadTestsFromModule(module)
+
+    def loadTestsFromTestCase(self, testCaseClass):
+        testModule = sys.modules[testCaseClass.__module__]
+        # Do not reload ERP5TypeTestCase because we patch it nor ZODB Test
+        # Component as it is reset upon modification anyway
+        if (testCaseClass is not ERP5TypeTestCase and
+            not isinstance(getattr(testModule, '__loader__', None),
+                           ComponentDynamicPackage)):
+          testModule = reload(testModule)
+        testCaseClass = getattr(testModule, testCaseClass.__name__)
+        return ERP5TypeTestLoader.loadTestsFromTestCase(self, testCaseClass)
+
 def runLiveTest(test_list, verbosity=1, stream=None, request_server_url=None, **kw):
   from Products.ERP5Type.tests.runUnitTest import DebugTestResult
   from StringIO import StringIO
@@ -221,9 +263,7 @@ def runLiveTest(test_list, verbosity=1, stream=None, request_server_url=None, **
   run_only = kw.get('run_only', ())
   filter_test_list = [re.compile(x).search
                       for x in run_only]
-  loader = ERP5TypeLiveTestLoader()
-  ERP5TypeTestLoader.filter_test_list = filter_test_list
-
+  loader = ERP5TypeTestReLoader(filter_test_list)
   suite = loader.loadTestsFromNames(test_list)
   output = stream
   if stream is None:

product/ERP5Type/tests/runUnitTest.py

@@ -625,9 +625,12 @@ def runUnitTestList(test_list, verbosity=1, debug=0, run_only=None):
         TestRunner = DebugTextTestRunner
       loader = ERP5TypeTestLoader()
       if run_only:
-        ERP5TypeTestLoader.filter_test_list = [re.compile(x).search
-                for x in run_only.split(',')]
+        ERP5TypeTestLoader.filter_test_list = [re.compile(x).search for x in
+            run_only.split(',')]
+
       suite = loader.loadTestsFromNames(test_list)
+      if run_only:
+        ERP5TypeTestLoader.filter_test_list = None
 
     if node_pid_list is None:
       result = suite()