Admin modifies personal preferences thru 'Users and groups'
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An admin can modify user preferences thru the @@user-preferences form in
Users and Groups config page.


So let's login as Plone admin:
    >>> self.browser.open('http://nohost/plone/')
    >>> self.browser.getLink('Log in').click()
    >>> self.browser.getControl('Login Name').value = 'admin'
    >>> self.browser.getControl('Password').value = 'secret'
    >>> self.browser.getControl('Log in').click()

Let's see if we can navigate to the user information form in Users and groups
    >>> self.browser.getLink('Site Setup').click()
    >>> self.browser.getLink('Users and Groups').click()
    >>> self.browser.getLink('(test_user_1_)').click()
    >>> self.browser.getLink('Personal Preferences').click()
    >>> self.browser.url
    'http://nohost/plone/@@user-preferences?userid=test_user_1_'

We have these controls in the form:

    >>> self.browser.getControl(name='form.wysiwyg_editor').value
    ['']
    >>> self.browser.getControl(name='form.ext_editor').value
    False
    >>> self.browser.getControl(name='form.language').value
    ['']


Modifying values
----------------

    >>> self.browser.getControl(name='form.wysiwyg_editor').value = ['TinyMCE']
    >>> self.browser.getControl(name='form.ext_editor').value = True
    >>> self.browser.getControl(name='form.language').value = ['en']
    >>> self.browser.getControl(name="form.actions.save").click()
    >>> 'Changes saved' in self.browser.contents
    True

Verify that the settings have actually been
changed:

    >>> member = self.membership.getMemberById('test_user_1_')
    >>> marker = object()
    >>> member.getProperty('wysiwyg_editor', marker)
    'TinyMCE'
    >>> member.getProperty('ext_editor', marker)
    True
    >>> member.getProperty('language', marker)
    'en'

And that the form still has the according values:

    >>> self.browser.open("http://nohost/plone/@@user-preferences?userid=test_user_1_")
    >>> self.browser.getControl(name='form.wysiwyg_editor').value
    ['TinyMCE']
    >>> self.browser.getControl(name='form.ext_editor').value
    True
    >>> self.browser.getControl(name='form.language').value
    ['en']


Clearing values
---------------

Check that empty or False values do get stored.

    >>> self.browser.getControl(name='form.wysiwyg_editor').value = ['']
    >>> self.browser.getControl(name='form.ext_editor').value = False
    >>> self.browser.getControl(name='form.language').value = ['']
    >>> self.browser.getControl(name="form.actions.save").click()
    >>> 'Changes saved' in self.browser.contents
    True

Verify that the settings have actually been
changed:

    >>> member = self.membership.getMemberById('test_user_1_')
    >>> member.getProperty('wysiwyg_editor', marker)
    ''
    >>> member.getProperty('ext_editor', marker)
    False
    >>> member.getProperty('language', marker)
    ''

And that the form still has the according values:

    >>> self.browser.open("http://nohost/plone/@@user-preferences?userid=test_user_1_")
    >>> self.browser.getControl(name='form.wysiwyg_editor').value
    ['']
    >>> self.browser.getControl(name='form.ext_editor').value
    False
    >>> self.browser.getControl(name='form.language').value
    ['']