Merged the newforms-admin branch into trunk.

This is a backward incompatible change. The admin contrib app has been
refactored. The newforms module has several improvements including FormSets
and Media definitions.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@7967 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/auth/tests/forms.py

@@ -0,0 +1,135 @@
+
+FORM_TESTS = """
+>>> from django.contrib.auth.models import User
+>>> from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
+>>> from django.contrib.auth.forms import PasswordChangeForm
+
+The user already exists.
+
+>>> user = User.objects.create_user("jsmith", "jsmith@example.com", "test123")
+>>> data = {
+...     'username': 'jsmith',
+...     'password1': 'test123',
+...     'password2': 'test123',
+... }
+>>> form = UserCreationForm(data)
+>>> form.is_valid()
+False
+>>> form["username"].errors
+[u'A user with that username already exists.']
+
+The username contains invalid data.
+
+>>> data = {
+...     'username': 'jsmith@example.com',
+...     'password1': 'test123',
+...     'password2': 'test123',
+... }
+>>> form = UserCreationForm(data)
+>>> form.is_valid()
+False
+>>> form["username"].errors
+[u'This value must contain only letters, numbers and underscores.']
+
+The verification password is incorrect.
+
+>>> data = {
+...     'username': 'jsmith2',
+...     'password1': 'test123',
+...     'password2': 'test',
+... }
+>>> form = UserCreationForm(data)
+>>> form.is_valid()
+False
+>>> form["password2"].errors
+[u"The two password fields didn't match."]
+
+The success case.
+
+>>> data = {
+...     'username': 'jsmith2',
+...     'password1': 'test123',
+...     'password2': 'test123',
+... }
+>>> form = UserCreationForm(data)
+>>> form.is_valid()
+True
+>>> form.save()
+<User: jsmith2>
+
+The user submits an invalid username.
+
+>>> data = {
+...     'username': 'jsmith_does_not_exist',
+...     'password': 'test123',
+... }
+
+>>> form = AuthenticationForm(None, data)
+>>> form.is_valid()
+False
+>>> form.non_field_errors()
+[u'Please enter a correct username and password. Note that both fields are case-sensitive.']
+
+The user is inactive.
+
+>>> data = {
+...     'username': 'jsmith',
+...     'password': 'test123',
+... }
+>>> user.is_active = False
+>>> user.save()
+>>> form = AuthenticationForm(None, data)
+>>> form.is_valid()
+False
+>>> form.non_field_errors()
+[u'This account is inactive.']
+
+>>> user.is_active = True
+>>> user.save()
+
+The success case
+
+>>> form = AuthenticationForm(None, data)
+>>> form.is_valid()
+True
+>>> form.non_field_errors()
+[]
+
+The old password is incorrect.
+
+>>> data = {
+...     'old_password': 'test',
+...     'new_password1': 'abc123',
+...     'new_password2': 'abc123',
+... }
+>>> form = PasswordChangeForm(user, data)
+>>> form.is_valid()
+False
+>>> form["old_password"].errors
+[u'Your old password was entered incorrectly. Please enter it again.']
+
+The two new passwords do not match.
+
+>>> data = {
+...     'old_password': 'test123',
+...     'new_password1': 'abc123',
+...     'new_password2': 'abc',
+... }
+>>> form = PasswordChangeForm(user, data)
+>>> form.is_valid()
+False
+>>> form["new_password2"].errors
+[u"The two password fields didn't match."]
+
+The success case.
+
+>>> data = {
+...     'old_password': 'test123',
+...     'new_password1': 'abc123',
+...     'new_password2': 'abc123',
+... }
+>>> form = PasswordChangeForm(user, data)
+>>> form.is_valid()
+True
+
+"""