galaxy: tests: split Model and View for more efficient data usage

galaxy/tests.py

@@ -34,7 +34,7 @@ from core.models import User
 from galaxy.models import Galaxy
 
 
-class GalaxyTest(TestCase):
+class GalaxyTestModel(TestCase):
     def setUp(self):
         self.root = User.objects.get(username="root")
         self.skia = User.objects.get(username="skia")
@@ -137,18 +137,36 @@ class GalaxyTest(TestCase):
         self.maxDiff = None  # Yes, we want to see the diff if any
         self.assertDictEqual(expected_scores, computed_scores)
 
+    def test_rule(self):
+        """
+        Test on the default dataset generated by the `populate` command
+        that the number of queries to rule the galaxy is stable.
+        """
+        galaxy = Galaxy.objects.create()
+        with self.assertNumQueries(58):
+            galaxy.rule(0)  # We want everybody here
+
+
+class GalaxyTestView(TestCase):
+    @classmethod
+    def setUpTestData(cls):
+        """
+        Generate a plausible Galaxy once for every test
+        """
+        call_command("generate_galaxy_test_data", "-v", "0")
+        galaxy = Galaxy.objects.create()
+        galaxy.rule(26)  # We want a fast test
+
     def test_page_is_citizen(self):
         """
         Test that users can access the galaxy page of users who are citizens
         """
-        with self.assertNumQueries(59):
-            galaxy = Galaxy.objects.create()
-            galaxy.rule(0)  # We want all users here
         self.client.login(username="root", password="plop")
-        response = self.client.get(reverse("galaxy:user", args=[1]))
+        user = User.objects.get(last_name="n°500")
+        response = self.client.get(reverse("galaxy:user", args=[user.id]))
         self.assertContains(
             response,
-            '<a onclick="focus_node(get_node_from_id(8))">Locate</a>',
+            f'<a onclick="focus_node(get_node_from_id({user.id}))">Reset on {user}</a>',
             status_code=200,
         )
 
@@ -157,21 +175,20 @@ class GalaxyTest(TestCase):
         Test that trying to access the galaxy page of a user who is not
         citizens return a 404
         """
-        galaxy = Galaxy.objects.create()
-        galaxy.rule(0)  # We want all users here
         self.client.login(username="root", password="plop")
-        response = self.client.get(reverse("galaxy:user", args=[2]))
+        user = User.objects.get(last_name="n°1")
+        response = self.client.get(reverse("galaxy:user", args=[user.id]))
         self.assertEquals(response.status_code, 404)
 
     def test_full_galaxy_state(self):
         """
         Test on the more complex dataset generated by the `generate_galaxy_test_data`
-        command that the relation scores are correct
+        command that the relation scores are correct, and that the view exposes the
+        right data.
         """
-        call_command("generate_galaxy_test_data", "-v", "0")
-        galaxy = Galaxy.objects.create()
-        galaxy.rule(26)  # We want a fast test
-        state = Galaxy.objects.last().state
+        self.client.login(username="root", password="plop")
+        response = self.client.get(reverse("galaxy:data"))
+        state = response.json()
 
         galaxy_dir = Path(__file__).parent