unit test for checking if nd number validation works

smash/web/forms/study_subject_forms.py

+import logging
 import re
 
 from django import forms
@@ -7,6 +8,8 @@ from web.forms.forms import DATETIMEPICKER_DATE_ATTRS, get_worker_from_args
 from web.models import StudySubject, Study, StudyColumns
 from web.models.constants import SCREENING_NUMBER_PREFIXES_FOR_TYPE
 
+logger = logging.getLogger(__name__)
+
 
 class StudySubjectAddForm(ModelForm):
     datetime_contact_reminder = forms.DateTimeField(label="Contact on",

smash/web/tests/forms/test_StudySubjectAddForm.py

@@ -30,9 +30,14 @@ class StudySubjectAddFormTests(LoggedInWithWorkerTestCase):
 
     def test_validation_for_study_without_columns(self):
         form = StudySubjectAddForm(data=self.sample_data, user=self.user, study=create_empty_study())
-        form.is_valid()
         self.assertTrue(form.is_valid())
 
+    def test_validate_nd_number(self):
+        self.sample_data['nd_number'] = 'invalid nd number'
+        form = StudySubjectAddForm(data=self.sample_data, user=self.user, study=self.study)
+        self.assertFalse(form.is_valid())
+        self.assertTrue("nd_number" in form.errors)
+
     def test_invalid(self):
         form_data = self.sample_data
         form_data['screening_number'] = "123"