diff --git a/colab/accounts/tests/test_forms.py b/colab/accounts/tests/test_forms.py
index 232130b..6a741fb 100644
--- a/colab/accounts/tests/test_forms.py
+++ b/colab/accounts/tests/test_forms.py
@@ -3,10 +3,12 @@ Test Form class.
 Objective: Test parameters, and behavior.
 """
 
+import datetime
+
 from django.test import TestCase
 from django.core.urlresolvers import reverse
 
-from colab.accounts.forms import UserCreationForm
+from colab.accounts.forms import UserCreationForm, UserChangeForm
 from colab.accounts.models import User
 
 
@@ -34,6 +36,19 @@ class FormTest(TestCase):
         form = UserCreationForm(data=form_data)
         return form
 
+    def create_change_form_data(self, username):
+        updated_data = {'username': username,
+                        'email': 'email@email.com',
+                        'last_login': datetime.date.today(),
+                        'date_joined': datetime.date.today()}
+        initial = {'email': 'email@email.com',
+                   'first_name': 'colabName',
+                   'last_name': 'secondName',
+                   'username': 'colab',
+                   'password': '123colab4'}
+        form = UserChangeForm(initial=initial, data=updated_data)
+        return form
+
     def test_already_registered_email(self):
         form = self.create_form_data('usertest@colab.com.br',
                                      'colab')
@@ -57,5 +72,13 @@ class FormTest(TestCase):
                                      'colab!')
         self.assertFalse(form.is_valid())
 
+    def test_update_valid_username(self):
+        form = self.create_change_form_data('colab123@colab-spb.com')
+        self.assertTrue(form.is_valid())
+
+    def test_update_not_valid_username(self):
+        form = self.create_change_form_data('colab!')
+        self.assertFalse(form.is_valid())
+
     def tearDown(self):
         pass
--
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