django_test_tools/forms.py

   1 class FormTestMixin():
   2     """
   3     Test mixin for testing forms
   4     """
   5
   6     def assert_missing_fields(self, cls, data, fields=None):
   7         """
   8         Tests fields that should raise a required exception
   9
  10         @param cls - form class
  11         @param data - dict of valid data
  12         @param fields - list of field names that are required
  13         """
  14         fields = data.keys if fields is None else fields
  15
  16         # check required fields
  17         for name in fields:
  18             data_ = data.copy()
  19             del data_[name]
  20             form = cls(data_)
  21             self.assertFalse(form.is_valid())
  22
  23     def assert_invalid_value(self, cls, data, fields):
  24         """
  25         Tests fields that should raise an error for a specific type of invalid
  26         data.
  27
  28         @param cls - form class
  29         @param data - dict of valid data
  30         @param fields - list of dicts containing field name and
  31             values that result
  32         in form errors.
  33         """
  34         # check required fields
  35         for values in fields:
  36             data_ = data.copy()
  37             data_.update(values)
  38             form = cls(data_)
  39             self.assertFalse(form.is_valid())