core_test: Add test to make sure that wendelin.core basically works

See merge request !1429

bt5/erp5_core_test/TestTemplateItem/portal_components/test.erp5.testWendelinCore.py

+# -*- coding:utf-8 -*-
+##############################################################################
+#
+# Copyright (C) 2021 Nexedi SA and Contributors.
+#                    Kirill Smelkov <kirr@nexedi.com>
+#
+# This program is free software: you can Use, Study, Modify and Redistribute
+# it under the terms of the GNU General Public License version 3, or (at your
+# option) any later version, as published by the Free Software Foundation.
+#
+# You can also Link and Combine this program with other software covered by
+# the terms of any of the Free Software licenses or any of the Open Source
+# Initiative approved licenses and Convey the resulting work. Corresponding
+# source of such a combination shall include the source code for all other
+# software used.
+#
+# This program is distributed WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# See COPYING file for full licensing terms.
+# See https://www.nexedi.com/licensing for rationale and options.
+#
+##############################################################################
+
+from Products.ERP5Type.tests.ERP5TypeTestCase import ERP5TypeTestCase
+from wendelin.bigarray.array_zodb import ZBigArray
+from numpy.testing import assert_array_equal
+import transaction
+
+# Minimal test to make sure that wendelin.core works at all.
+class TestWendelinCoreBasic(ERP5TypeTestCase):
+
+  def test(self):
+    # create the array in temporary "root" placeholder.
+    # NOTE we need created objects to enter ZODB for real, but
+    # newContent(temp_object=True) creates an object with ._p_jar=None
+    zroot  = self.portal.newContent()
+    zroot.zarray = A = ZBigArray(shape=(4,), dtype=int)
+    self.commit()
+    self.assertIsNotNone(zroot._p_jar)  # zroot enters ZODB
+    self.assertIsNotNone(A._p_jar)      # zarray ----//----
+
+    # the array must initially read as all zeros
+    a = A[:]
+    assert_array_equal(a, [0,0,0,0])
+    b = A[:]
+    assert_array_equal(b, [0,0,0,0])
+
+    # we can assign items in a view, and the assignment propagates to another view
+    a[2] = 1
+    assert_array_equal(a, [0,0,1,0])
+    assert_array_equal(b, [0,0,1,0])
+
+    # on abort local changes are reverted
+    transaction.abort()
+    assert_array_equal(a, [0,0,0,0])
+    assert_array_equal(b, [0,0,0,0])
+
+    # on commit local changes are saved into ZODB
+    a[1] = 3
+    b[2] = 4
+    assert_array_equal(a, [0,3,4,0])
+    assert_array_equal(b, [0,3,4,0])
+    self.commit()
+    transaction.abort() # just in case
+    c = A[:]
+    assert_array_equal(a, [0,3,4,0])
+    assert_array_equal(b, [0,3,4,0])
+    assert_array_equal(c, [0,3,4,0])

bt5/erp5_core_test/TestTemplateItem/portal_components/test.erp5.testWendelinCore.xml

+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <global name="Test Component" module="erp5.portal_type"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>_recorded_property_dict</string> </key>
+            <value>
+              <persistent> <string encoding="base64">AAAAAAAAAAI=</string> </persistent>
+            </value>
+        </item>
+        <item>
+            <key> <string>default_reference</string> </key>
+            <value> <string>testWendelinCore</string> </value>
+        </item>
+        <item>
+            <key> <string>description</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>test.erp5.testWendelinCore</string> </value>
+        </item>
+        <item>
+            <key> <string>portal_type</string> </key>
+            <value> <string>Test Component</string> </value>
+        </item>
+        <item>
+            <key> <string>sid</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>text_content_error_message</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
+        <item>
+            <key> <string>text_content_warning_message</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
+        <item>
+            <key> <string>version</string> </key>
+            <value> <string>erp5</string> </value>
+        </item>
+        <item>
+            <key> <string>workflow_history</string> </key>
+            <value>
+              <persistent> <string encoding="base64">AAAAAAAAAAM=</string> </persistent>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+  <record id="2" aka="AAAAAAAAAAI=">
+    <pickle>
+      <global name="PersistentMapping" module="Persistence.mapping"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>data</string> </key>
+            <value>
+              <dictionary/>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+  <record id="3" aka="AAAAAAAAAAM=">
+    <pickle>
+      <global name="PersistentMapping" module="Persistence.mapping"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>data</string> </key>
+            <value>
+              <dictionary>
+                <item>
+                    <key> <string>component_validation_workflow</string> </key>
+                    <value>
+                      <persistent> <string encoding="base64">AAAAAAAAAAQ=</string> </persistent>
+                    </value>
+                </item>
+              </dictionary>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+  <record id="4" aka="AAAAAAAAAAQ=">
+    <pickle>
+      <global name="WorkflowHistoryList" module="Products.ERP5Type.Workflow"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>_log</string> </key>
+            <value>
+              <list>
+                <dictionary>
+                  <item>
+                      <key> <string>action</string> </key>
+                      <value> <string>validate</string> </value>
+                  </item>
+                  <item>
+                      <key> <string>validation_state</string> </key>
+                      <value> <string>validated</string> </value>
+                  </item>
+                </dictionary>
+              </list>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>

bt5/erp5_core_test/bt/template_test_id_list

@@ -54,6 +54,7 @@ test.erp5.testTransactionalVariable
 test.erp5.testTrashTool
 test.erp5.testVanillaERP5Catalog
 test.erp5.testVideoField
+test.erp5.testWendelinCore
 test.erp5.testWorkflowHistoryList
 test.erp5.testWorklist
 test.erp5.testXForwardedFor

product/ERP5Type/patches/pylint.py

@@ -327,6 +327,18 @@ for filename in os.listdir(os.path.dirname(lxml.__file__)):
             module_name,
             __import__(module_name, fromlist=[module_name], level=0))
 
+# Wendelin is special namespace package which pylint fails to recognize, and so
+# complains about things like `from wendelin.bigarray.array_zodb import ZBigArray`
+# with `No name 'bigarray' in module 'wendelin' (no-name-in-module)`.
+#
+# -> Teach pylint to properly understand wendelin package nature.
+import wendelin
+def wendelin_transform(node):
+    m = AstroidBuilder(MANAGER).string_build('__path__ = %r' % wendelin.__path__)
+    m.package = True
+    return m
+MANAGER.register_transform(Module, wendelin_transform, lambda node: node.name == 'wendelin')
+
 # Properly search for namespace packages: original astroid (as of 1.3.8) only
 # checks at top-level and it doesn't work for Shared.DC.ZRDB (defined in
 # Products.ZSQLMethods; Shared and Shared.DC being a namespace package defined