initial commit

benchcoach/users/tests/test_forms.py

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+"""
+Module for all Form Tests.
+"""
+import pytest
+from django.utils.translation import gettext_lazy as _
+
+from benchcoach.users.forms import UserAdminCreationForm
+from benchcoach.users.models import User
+
+pytestmark = pytest.mark.django_db
+
+
+class TestUserAdminCreationForm:
+    """
+    Test class for all tests related to the UserAdminCreationForm
+    """
+
+    def test_username_validation_error_msg(self, user: User):
+        """
+        Tests UserAdminCreation Form's unique validator functions correctly by testing:
+            1) A new user with an existing username cannot be added.
+            2) Only 1 error is raised by the UserCreation Form
+            3) The desired error message is raised
+        """
+
+        # The user already exists,
+        # hence cannot be created.
+        form = UserAdminCreationForm(
+            {
+                "username": user.username,
+                "password1": user.password,
+                "password2": user.password,
+            }
+        )
+
+        assert not form.is_valid()
+        assert len(form.errors) == 1
+        assert "username" in form.errors
+        assert form.errors["username"][0] == _("This username has already been taken.")