drop the patch in DateTime._parse_args which cause DateTime to
support timezone naive dates

adjust __setstate__ to pickle the timezone naive flag

adjust code relying on DateTime private attributes

adjust tests for new DateTime.__eq__ behavior (instances with
different timezones are different)

more testing, especially for various __setstate__ versions

introduce a context manager to change timezone in tests.

- Display the editor in ERP5 language, not browser language
 - Use PDF viewer for Drawing preview
 - Supports password protected PDFs
 - Others small changes

See merge request nexedi/erp5!1639

and several small fixes or changes to make this easier

See merge request nexedi/erp5!1642

This was a workaround for ChromeOS, but we realized it was not really good.
Disable it for the same reasons as nexedi/slapos!1196 :

 - not everybody use ChromeOS
 - this breaks the ctrl+click shortcut to go to definition/follow link
 - it makes ERP5 monaco editor behaves differently from others monaco editor
 - ChromeOS users can use chrome://flags/#use-search-click-for-right-click

When cleaning up Wendelin from restricted python pandas code
(see https://lab.nexedi.com/levin.zimmermann/wendelin/tree/remove-redundant-pandas),
it turned out that there was one line still missing in erp5.
This missing line caused a failed test in wendelin functional tests:

  https://erp5js.nexedi.net/#/test_result_module/20220614-1B46817BD/6

Readding the line fixed the test.

create_server returns either a BaseWSGIServer or a MultiSocketServer,
but add_task only exists in BaseWSGIServer - and the implementation is
simply [1]:

    def add_task(self, task):
        self.task_dispatcher.add_task(task)

by using self.task_dispatcher.add_task directly, we are compatible with
both cases.

This is relevant when running timerserver with runUnitTest, where we
create multiple sockets, one for http and one for web-dav.

1: https://github.com/Pylons/waitress/blob/v1.4.4/src/waitress/server.py#L290-L291

The default TestCase.__call__ collects errors in a test result that
was never retrieved, so errors were silently ignored.

By using TestCase.debug , we let errors propagate.

---

Minimal reproduction is running directly (ie. not with python -m unittest)
a script like this:

    import unittest

    class T(unittest.TestCase):
      def method(self):
        print('ah ?')
        boom
        print('oh')

    t = T("method")
    t()  # no error
    t.debug()  # NameError: name 'boom' is not defined

This helps debugging concurrency problems

This allows running tests using a timer server loop, that will invoke
process timer on all subscribers.
The need for this is to test a custom tool using timer server.

It was enough for 2 nodes, but with 4 nodes I sometimes saw errors.

This was a deprecated method that no longer exists since ZEO 4
https://github.com/zopefoundation/ZEO/commit/5423f110ddc1034ea0954495957894c60f6da78c

_setUpDummyMailHost is also used to prevent accidentally sending "real"
emails, so we also like to have it enabled for other nodes.

See merge request nexedi/erp5!1641

This happens in project related task report dialog (
testProjectRelatedTaskReport from
erp5_report_renderjs_ui_test:testFunctionalRJSReportLanguage )

jslint complain about trailing commas

It does not make any sense to open PDF files from this gadget.

Also remove duplicate line with documentProperties

This is intended to store sensitive documents that users will only
be able to view from ERP5, but not to easily print or download.

To use this, some customization is needed. First, PDF needs to be
saved with a password. Then, PDF_getContentPassword type based method
needs to be customized to return the password.

When using this, we use different password for each document, by
deriving a password from a master key using document properties (such
as document reference for example)

A new option render option, "language" is passed to the gadget. It is
a two letter code as used by Localier.

Both CKEditor and pdf.js have support for translations and already
include translations for many languages. Before this change, they were
auto detecting the browser language and displaying in the browser
language, ignoring the language that was selected in ERP5. With this
change, they use the language selected in ERP5.

For CKEditor, we need to set the language only it is actually supported,
otherwise CKEditor crash. pdf.js does not this, but we had to call
ourselves initialize - which is probably better, because it was a promise
not awaited.

I'm not sure what was the problem from this comment, but we render
the gadget in an iframe so there's no need to change the DOM like this.
Probably this was a problem in early versions when it was in the same
page.

also change the content type in so that they are exported as text in
business template

This is the URL to download, it currently does not support range
requests, but it sets cache headers properly, unlike /getData which
is an accessor

For drawings the layout is usually important, but HTML preview do
not preserve layout correctly. Use PDF instead, which keeps layout

It was tested only in the context of erp5_km, not in ERP5JS and xhtml
style

so that they can be reused by other UI tests business templates without
having to install the full erp5_ui_test

using movement date rather than order date is more correct

composition API, which is used to select the "most applicable" model
(Trade Condition, Transformation, Pay Sheet Model, etc) with the same
reference was only discarding deleted and validated models, but it
was selecting draft models.

This leads to this kind of problem:
 - A validated model exist, with an effective date
 - A new model is made by cloning the validated one, edited to set
  effective date from now and validated
 - The first validated model is also cloned by mistake, but not
  validated
In such case, the model cloned by mistake might be used, which from
user point of view is wrong, because user validated a model, so if
the system use a draft instead, that's a very wrong behaviour.

This change require models to be validated for the composition API to
work, many tests were updated to validate the model (either in the test
or in the data business template used by the test).

This change might also produce different results in production, because
it was possible that some draft models were selected before, now they
will no longer be selected. To check for potential side effects, we
recommend looking for all draft models with a reference, examine them
one by one and validate the model if it's a case where user forgot to
validate.

Since
  commit f363ac65
  Author: Vincent Pelletier <vincent@nexedi.com>
  Date:   Wed Mar 23 15:55:46 2022 +0900

      Products.CMFActivity.ActivityTool: Store user object in activity.
user_name on newly created activities is always None. As a result,
activities using dummyGroupMethod are executed within the security
context which spawns the group, which is System Processes, instead of
the user which spawned each activity.
Add a unittest for this.

This was broken by:
  commit f363ac65
  Author: Vincent Pelletier <vincent@nexedi.com>
  Date:   Wed Mar 23 15:55:46 2022 +0900

      Products.CMFActivity.ActivityTool: Store user object in activity.
as user_name becomes always None.

See merge request nexedi/erp5!1637

This script stopped working since Catalog changed to be ERP5 document,
because it was calling the unindex method of the catalog (which
itself is indexable like any other ERP5 document). Update to use the
uncatalogObject which is the method to unindex a document by uid.

Even though it was somehow working before, it was not really correct
in selecting objects, because it was using - operator on TIMESTAMP
column, which is not computing a difference in seconds as this script
was expecting. See for example https://stackoverflow.com/a/24504132/7607763
or the example below for an explanation. Instead, use TIMESTAMPADD
to compute the start timestamp only once and use >= operator, which
works as expected.

This query was also sorting by indexation_timestamp, which does not
use an index. Remove the sort because it's not really needed.

Excluding reserved path was also not needed, we no longer use these
since 69aefdff (ZSQLCatalog: Drop support for "reserved" path.,
2017-09-18)

---

Another reproduction of the timestamp arithmetic problem

select
   TIMESTAMP('2021-01-02 00:00:00') - TIMESTAMP('2021-01-01 00:00:00') a,
   20210102000000 - 20210101000000 aa,
   TIMESTAMP('2021-06-01 00:00:00') - TIMESTAMP('2021-05-31 00:00:00') b,
   20210601000000 - 20210531000000 bb,
   TIMESTAMPDIFF(second, TIMESTAMP('2021-05-31 00:00:00'), TIMESTAMP('2021-06-01 00:00:00')) c

| a | aa | b | bb | c |
| ------ | ------ | ------ | ------ | ------ |
| 1000000 | 1000000 | 70000000 | 70000000 | 86400 |

This is a bit easier to read

When a test fail, we make a data-url link with the HTML of the current
page, so that we can easily investigate test failures n test nodes.
We should not let errors that might happen here propagate, otherwise
the test result is not created and the test runner does not detect
that the test is finished.

One case that caused such errors was failed assertion just after
using goBack command without waiting

Depending on field type, if min and max are not setup then they can be equals to the empty string or undefined.