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test_serialize.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import os, sys
if __name__ == '__main__':
    execfile(os.path.join(sys.path[0], 'framework.py'))

from Testing import ZopeTestCase

ZopeTestCase.installProduct('Formulator')

import unittest
from Testing import makerequest
from DateTime import DateTime

from Products.Formulator.Form import ZMIForm
from Products.Formulator.XMLToForm import XMLToForm
from Products.Formulator.FormToXML import formToXML
from Products.Formulator.MethodField import Method

from Products.Formulator.Errors import ValidationError, FormValidationError

import re

00025 class FakeRequest:
    """ a fake request for testing.
    Actually we need this only for item acces,
    and for evaluating to false always, for
    the manage_XXX methods to not try to render
    a response.
    """

    def __init__(self):
        self.form = {}

    def __getitem__(self, key):
        return self.form[key]

    def __setitem__(self, key, value):
        self.form[key] = value

    def get(self, key, default_value):
        return self.form.get(key, default_value)

    def update(self, other_dict):
        self.form.update(other_dict)

    def clear(self):
        self.form.clear()

    def __nonzero__(self):
        return 0

class SerializeTestCase(ZopeTestCase.ZopeTestCase):
    def afterSetUp(self):
        self.root = self.folder
        
    def test_simpleSerialize(self):
        form = ZMIForm('test', 'My test')
        xml = '''\
<?xml version="1.0" encoding="iso-8859-1" ?>

<form>
  <title></title>
  <name>tab_status_form</name>
  <action></action>
  <enctype></enctype>
  <method></method>

  <groups>
    <group>
      <title>Default</title>
      <fields>

      <field><id>message</id> <type>RawTextAreaField</type>
        <values>
          <alternate_name></alternate_name>
          <hidden type="int">0</hidden>
          <max_length></max_length>
          <width type="int">65</width>
          <external_validator></external_validator>
          <height type="int">7</height>
          <required type="int">0</required>
          <css_class></css_class>
          <default></default>
          <title>Message</title>
          <truncate type="int">0</truncate>
          <description></description>
          <extra>wrap="soft"</extra>
        </values>
        <tales>
        </tales>
      </field>
      <field><id>publish_datetime</id> <type>DateTimeField</type>
        <values>
          <date_only type="int">0</date_only>
          <alternate_name></alternate_name>
          <input_style>list</input_style>
          <hidden type="int">0</hidden>
          <input_order>dmy</input_order>
          <time_separator>:</time_separator>
          <date_separator>/</date_separator>
          <external_validator></external_validator>
          <required type="int">0</required>
          <default_now type="int">0</default_now>
          <css_class></css_class>
          <title>Publish time</title>
          <description></description>
        </values>
        <tales>
          <time_separator>python:form.time_punctuation</time_separator>
          <date_separator>python:form.date_punctuation</date_separator>
        </tales>
      </field>
      <field><id>expiration_datetime</id> <type>DateTimeField</type>
        <values>
          <date_only type="int">0</date_only>
          <alternate_name></alternate_name>
          <input_style>list</input_style>
          <css_class></css_class>
          <hidden type="int">0</hidden>
          <input_order>dmy</input_order>
          <time_separator>:</time_separator>
          <date_separator>/</date_separator>
          <external_validator></external_validator>
          <required type="int">0</required>
          <default_now type="int">0</default_now>
          <title>Expiration time</title>
          <description>If this document should expire, set the time.</description>
        </values>
        <tales>
          <time_separator>python:form.time_punctuation</time_separator>
          <date_separator>python:form.date_punctuation</date_separator>
        </tales>
      </field>
      <field><id>expires_flag</id> <type>CheckBoxField</type>
        <values>
          <alternate_name></alternate_name>
          <hidden type="int">0</hidden>
          <css_class></css_class>
          <default type="int">0</default>
          <title>Expire flag</title>
          <description>Turn on expiration time?</description>
          <external_validator></external_validator>
          <extra></extra>
        </values>
        <tales>
        </tales>
      </field>
      </fields>
    </group>
  </groups>
</form>'''
        XMLToForm(xml, form)
        s = formToXML(form)
        f = open('output1.txt', 'w')
        f.write(s)
        f.close()
        form2 = ZMIForm('another', 'Something')
        XMLToForm(xml, form2)
        f = open('output2.txt', 'w')
        f.write(formToXML(form2))
        f.close()


    def assertEqualForms(self, form1, form2):
        """ test that the two forms are equal (except for their ids) """
        # in case of failures the messages could be nicer ...
        
        self.assertEquals( map(lambda x: x.getId(), form1.get_fields()), \
                           map(lambda x: x.getId(), form2.get_fields()) )
        for field in form1.get_fields():
            self.assert_(form2.has_field(field.getId()))
            field2 = getattr(form2, field.getId())
            # test if values are the same
            self.assertEquals(field.values, field2.values)
            # test if default renderings are the same
            self.assertEquals(field.render(), field2.render())
            
        self.assertEquals(form1.title, form2.title)
        # self.assertEquals(form1.row_lenght, form2.row_lenght) # not initialized ?
        self.assertEquals(form1.name, form2.name)
        self.assertEquals(form1.action, form2.action)
        self.assertEquals(form1.method, form2.method)
        self.assertEquals(form1.enctype, form2.enctype)
        self.assertEquals(form1.encoding, form2.encoding)
        self.assertEquals(form1.stored_encoding, form2.stored_encoding)
        self.assertEquals(form1.unicode_mode, form2.unicode_mode)
        self.assertEquals(form1.i18n_domain, form2.i18n_domain)

        self.assertEquals(form1.get_groups(), form2.get_groups())

        # if we have forgotten something, this will usually remind us ;-)
        self.assertEquals(form1.render(), form2.render())
        

    def test_escaping(self):
        """ test if the necessary elements are escaped in the XML.
        (Actually this test is very incomplete)
        """
        form = ZMIForm('test', '<EncodingTest>')
        # XXX don't test escaping of name, as needs to be javascript
        # valid anyway?
        form.name = 'name'
        form.add_group('a & b')

        form.manage_addField('string_field', '<string> Field', 'StringField')
        form.manage_addField('int_field', '<int> Field', 'IntegerField')
        form.manage_addField('float_field', '<Float> Field', 'FloatField')
        form.manage_addField('date_field', '<Date> Field', 'DateTimeField')
        form.manage_addField('list_field', '<List> Field', 'ListField')
        form.manage_addField('multi_field', '<Checkbox> Field', 'MultiCheckBoxField')

        form2 = ZMIForm('test2', 'ValueTest')

        xml = formToXML(form)
        XMLToForm(xml, form2)

        self.assertEqualForms(form, form2)


    def test_messages(self):
        """ test if the error messages are exported
        """
        form = ZMIForm('test', '<EncodingTest>')
        form.manage_addField('int_field', 'int Field', 'IntegerField')

        form2 = ZMIForm('test2', 'ValueTest')
        request = FakeRequest()
        for message_key in form.int_field.get_error_names():
           request[message_key] = 'test message for error key <%s>' % message_key
        form.int_field.manage_messages(REQUEST=request)


        xml = formToXML(form)
        XMLToForm(xml, form2)
        # print xml

        request.clear()
        request['field_int_field'] = 'not a number'

        try:
            form.validate_all(request)
            self.fail('form should fail in validation')
        except FormValidationError, e:
            self.assertEquals(1, len(e.errors))
            text1 = e.errors[0].error_text

        try:
            form2.validate_all(request)
            self.fail('form2 should fail in validation')
        except FormValidationError, e:
            self.assertEquals(1, len(e.errors))
            text2 = e.errors[0].error_text
        # XXX compare original message ids..
        self.assertEquals(unicode(text1), unicode(text2))


    def test_fieldValueTypes(self):
        """ test checking if the field values are of the proper type.
        after reading from XML some field values may not have the right type,
        if they have a special type (only for "int" and "list" yet).
        Also tests if rendering and validation are the same
        between the original form and the one after one form -> xml -> form
        roundtrip.
        """
        # tests for "method" and "datetime" values follow later on ...
        # booleans are not tested yet

        form = ZMIForm('test', 'ValueTest')
        form.manage_addField('int_field', 'Test Integer Field', 'IntegerField')
        form.manage_addField('float_field', 'Test Float Field', 'FloatField')
        form.manage_addField('date_field', 'Test Date Field', 'DateTimeField')
        form.manage_addField('list_field', 'Test List Field', 'ListField')
        form.manage_addField('multi_field', 'Test Checkbox Field', 'MultiCheckBoxField')
        form.manage_addField('link_field', 'Test Link Field', 'LinkField')
        form.manage_addField('empty_field', 'Test Empty Field', 'StringField')
        int_field   = form.int_field
        float_field = form.float_field
        date_field  = form.date_field
        list_field  = form.list_field
        multi_field = form.multi_field
        link_field  = form.link_field
        empty_field = form.empty_field

        # XXX editing fields by messing with a fake request
        # -- any better way to do this?
        # (could assign to "values" directly ...)

        default_values = {'field_title': 'Test Title',
                          'field_display_width': '92',
                          'field_required':'checked',
                          'field_enabled':'checked',
                          }
        try:
            request = FakeRequest()
            request.update(default_values)
            request.update( {'field_default':'42',
                             'field_enabled':'checked'})
            int_field.manage_edit(REQUEST=request)

            request.clear()
            request.update(default_values)
            request.update( {'field_default':'1.7'})
            float_field.manage_edit(REQUEST=request)

            # XXX cannot test "defaults to now", as this may fail randomly
            request.clear()
            request.update(default_values)
            request.update( {'field_input_style':'list',
                             'field_input_order':'mdy',
                             'field_date_only':'',
                             'field_css_class':'test_css',
                             'field_time_separator':'$'})
            date_field.manage_edit(REQUEST=request)

            request.clear()
            request.update(default_values)
            request.update( {'field_default':'foo',
                             'field_size':'1',
                             'field_items':'Foo | foo\n Bar | bar'})
            list_field.manage_edit(REQUEST=request)

            request.clear()
            request.update(default_values)
            request.update( {'field_default':'foo',
                             'field_size':'3',
                             'field_items':'Foo | foo\n Bar | bar\nBaz | baz',
                             'field_orientation':'horizontal',
                             'field_view_separator':'<br />\n',
                             })
            multi_field.manage_edit(REQUEST=request)

            request.clear()
            request.update(default_values)
            request.update( {'field_default':'http://www.absurd.org',
                             'field_required':'1',
                             'field_check_timeout':'5.0',
                             'field_link_type':'external',
                             })
            link_field.manage_edit(REQUEST=request)

            request.clear()
            request.update(default_values)
            request.update( {'field_default':'None',
                             'field_required':'',
                             })
            empty_field.manage_edit(REQUEST=request)

        except ValidationError, e:
            self.fail('error when editing field %s; error message: %s' %
                       (e.field_id, e.error_text) )

        form2 = ZMIForm('test2', 'ValueTest')

        xml = formToXML(form)
        XMLToForm(xml, form2)


        self.assertEqualForms(form, form2)

        request.clear()
        request['field_int_field'] = '42'
        request['field_float_field'] = '2.71828'
        request['subfield_date_field_month'] = '11'
        request['subfield_date_field_day'] = '11'
        request['subfield_date_field_year'] = '2011'
        request['subfield_date_field_hour'] = '09'
        request['subfield_date_field_minute'] = '59'
        request['field_list_field'] = 'bar'
        request['field_multi_field'] = ['bar', 'baz']
        request['field_link_field'] = 'http://www.zope.org'
        try:
            result1 = form.validate_all(request)
        except FormValidationError, e:
            # XXX only render first error ...
            self.fail('error when editing form1, field %s; error message: %s' %
                       (e.errors[0].field_id, e.errors[0].error_text) )

        try:
            result2 = form2.validate_all(request)
        except FormValidationError, e:
            # XXX only render first error ...
            self.fail('error when editing form1, field %s; error message: %s' %
                       (e.errors[0].field_id, e.errors[0].error_text) )
        self.assertEquals(result1, result2)
        self.assertEquals(42, result2['int_field'])
        self.assertEquals(2.71828, result2['float_field'])

      # check link field timeout value
      self.assertEquals(link_field.get_value('check_timeout'),
                          form2.link_field.get_value('check_timeout'))

        # XXX not tested: equal form validation failure on invalid input



    def test_emptyGroup(self):
        """ test bugfix: empty groups are allowed in the XMLForm """
        form = ZMIForm('test', 'GroupTest')
        form.add_group('empty')

        form2 = ZMIForm('test2', 'GroupTestCopy')

        xml = formToXML(form)
        XMLToForm(xml, form2)
        # print xml
        self.assertEqualForms(form, form2)


    def test_validatorMethod(self):
        self.root.manage_addProduct['Formulator'] \
                 .manage_add('form', 'Test Form')
        form = self.root.form

        self.root.manage_addDTMLMethod('test_dtml','Test DTML','ok')

        form.manage_addField('string_field', '<string> Field', 'StringField')
        form.string_field.values['external_validator'] = Method('test_dtml')

        # test that the override works:
        self.assertEquals('ok',
                          form.string_field.get_value('external_validator')())

        # now serialize it:
        xml = formToXML(form)

        # get the external validator from the output
        # XXX this could be more elegant, I guess ...
        for line in xml.split('\n'):
            m = re.match(r'\s*<external_validator type="method">(.*?)</external_validator>\s*',
                         line)
            if m: break
        else:
            self.fail('external_validator not found in xml')
        self.assertEquals('test_dtml',m.group(1))

        # deserialize it
        self.root.manage_addProduct['Formulator'] \
                  .manage_add('form2', 'Test Form')
        form2 = self.root.form2
        XMLToForm(xml, form2)
        self.assertEquals('ok',
                          form2.string_field.get_value('external_validator')())


    def test_serializeDateTimeValues(self):
        form = ZMIForm('test', 'DateTime')

        form.manage_addField('date_field', 'Date Field', 'DateTimeField')
        form.date_field.values['start_datetime'] = DateTime('2004/01/01 12:01:00')

        form2 = ZMIForm('test', 'DateTime2')

        xml = formToXML(form)
        XMLToForm(xml, form2)

        self.assertEqualForms(form, form2)

    def test_deserializeFlushesOldFields(self):
        # test that deserializing a form removes old values which
        # have been defined on that from previously
        # this may be an issue if one edits a form directly
        # via the ZMI "XML" tab; removing a field in the XML did not
        # remove that field from the form contents
        form = ZMIForm('test', 'Source')
        form2 = ZMIForm('test2', 'Target')

        form.manage_addField('date_field', 'Date Field', 'DateTimeField')
        form2.manage_addField('another_field', 'String Field', 'StringField')

        xml = formToXML(form)
        XMLToForm(xml, form2)

        self.assertEqualForms(form, form2)
        self.failIf( form2.has_field('another_field') )
        self.failIf('another_field' in form2.objectIds() )

    def test_serializeDeserializeEncodedMessages(self):
        # test for serializing and deserializing XML with non-ascii text in
        # the message tags
        xml1 = """\
<?xml version="1.0"?>

<form>
  <title></title>
  <row_length>4</row_length>
  <name>testform_bugs</name>
  <action></action>
  <method>POST</method>
  <enctype></enctype>
  <encoding>UTF-8</encoding>
  <stored_encoding>UTF-8</stored_encoding>
  <unicode_mode>false</unicode_mode>
  <i18n_domain></i18n_domain>
  <groups>
    <group>
      <title>Default</title>
      <fields>

      <field><id>string</id> <type>StringField</type>
        <values>
          <alternate_name></alternate_name>
          <css_class></css_class>
          <default></default>
          <description>मैं काँच खा सकता हूँ, मुझे उस से कोई पीडा</description>
          <display_maxwidth></display_maxwidth>
          <display_width type="int">20</display_width>
          <enabled type="int">1</enabled>
          <external_validator></external_validator>
          <extra></extra>
          <hidden type="int">0</hidden>
          <max_length></max_length>
          <required type="int">1</required>
          <title>मैं काँच खा सकता हूँ, मुझे उस से कोई पीडा</title>
          <truncate type="int">0</truncate>
          <unicode type="int">0</unicode>
          <whitespace_preserve type="int">0</whitespace_preserve>
        </values>
        <tales>
        </tales>
        <messages>
          <message name="external_validator_failed">मैं काँच खा सकता हूँ, मुझे उस से कोई पीडा</message>
          <message name="required_not_found">मैं काँच खा सकता हूँ, मुझे उस से कोई पीडा</message>
          <message name="too_long">मैं काँच खा सकता हूँ, मुझे उस से कोई पीडा</message>
        </messages>
      </field>
      </fields>
    </group>
  </groups>
</form>
"""

        # we're not expecting exceptions, and don't really care about anything
        # else, so no asserts here...
        form = ZMIForm('foo', 'Foo')
        XMLToForm(xml1, form)
        xml_roundtrip = formToXML(form)

        xml1 = """\
<?xml version="1.0"?>

<form>
  <title></title>
  <row_length>4</row_length>
  <name>testform_bugs</name>
  <action></action>
  <method>POST</method>
  <enctype></enctype>
  <encoding>UTF-8</encoding>
  <stored_encoding>UTF-8</stored_encoding>
  <unicode_mode>true</unicode_mode>
  <i18n_domain></i18n_domain>
  <groups>
    <group>
      <title>Default</title>
      <fields>

      <field><id>string</id> <type>StringField</type>
        <values>
          <alternate_name></alternate_name>
          <css_class></css_class>
          <default></default>
          <description>मैं काँच खा सकता हूँ, मुझे उस से कोई पीडा</description>
          <display_maxwidth></display_maxwidth>
          <display_width type="int">20</display_width>
          <enabled type="int">1</enabled>
          <external_validator></external_validator>
          <extra></extra>
          <hidden type="int">0</hidden>
          <max_length></max_length>
          <required type="int">1</required>
          <title>मैं काँच खा सकता हूँ, मुझे उस से कोई पीडा</title>
          <truncate type="int">0</truncate>
          <unicode type="int">0</unicode>
          <whitespace_preserve type="int">0</whitespace_preserve>
        </values>
        <tales>
        </tales>
        <messages>
          <message name="external_validator_failed">मैं काँच खा सकता हूँ, मुझे उस से कोई पीडा</message>
          <message name="required_not_found">मैं काँच खा सकता हूँ, मुझे उस से कोई पीडा</message>
          <message name="too_long">मैं काँच खा सकता हूँ, मुझे उस से कोई पीडा</message>
        </messages>
      </field>
      </fields>
    </group>
  </groups>
</form>
"""

        # we're not expecting exceptions, and don't really care about anything
        # else, so no asserts here...
        form = ZMIForm('foo', 'Foo')
        XMLToForm(xml1, form)
        xml_roundtrip = formToXML(form)

def test_suite():
    suite = unittest.TestSuite()
    suite.addTest(unittest.makeSuite(SerializeTestCase, 'test'))
    return suite

if __name__ == '__main__':
    framework()

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