Do not show availability for currently-selected add-on

src/tests/base/__init__.py

@@ -2,7 +2,7 @@ from bs4 import BeautifulSoup
 from django.test import TestCase
 
 
-class SoupTest(TestCase):
+class SoupTestMixin:
 
     def get_doc(self, *args, **kwargs):
         response = self.client.get(*args, **kwargs)
@@ -17,6 +17,10 @@ class SoupTest(TestCase):
             return BeautifulSoup(response.content, "lxml")
 
 
+class SoupTest(SoupTestMixin, TestCase):
+    pass
+
+
 def extract_form_fields(soup):
     """
     Turn a BeautifulSoup form in to a dict of fields and default values