def METHOD_NAME(self):
    unit = self.get_unit()
    # Add comment
    response = self.client.post(
        reverse("comment", kwargs={"pk": unit.id}),
        {"comment": "New source testing comment", "scope": "global"},
    )
    self.assertRedirects(response, unit.get_absolute_url())
    # Check it is shown on page
    response = self.client.get(unit.get_absolute_url())
    self.assertContains(response, "New source testing comment")
    # Reload from database
    unit = self.get_unit()
    translation = self.component.translation_set.get(language_code="cs")
    # Check number of comments
    self.assertFalse(unit.has_comment)
    self.assertEqual(translation.stats.comments, 0)