test: each app keeps its tests in a tests package

131 test modules sat next to the code they test; instances alone had
51 of them beside views.py and utils.py. They move into a
tests/ package per app, and the JavaScript checks into
webvirtcloud/tests/js. Each non-empty tests.py becomes tests/test_views.py;
the empty generated stubs are removed.

Imports of the app's own modules become absolute, paths built from
__file__ go one level up, the live helper is instances.tests.livetest,
and coverage omits */tests/*. The suite discovers the same 960 tests as
before.

instances/test_console_settings_access.py

@@ -1,87 +0,0 @@
-"""
-The console settings form on the VM detail page carries the VNC password
-(PasswordInput(render_value=True)). It must only be rendered for users who may
-change console settings, which is the rule update_console enforces: a
-superuser, or an owner with both is_change and is_vnc. In particular, is_staff
-and the global view_instances permission must not reveal the VNC password.
-"""
-from unittest.mock import PropertyMock, patch
-
-from django.contrib.auth import get_user_model
-from django.contrib.auth.models import Permission
-from django.test import TestCase
-from django.urls import reverse
-
-from accounts.models import UserInstance
-from computes.models import Compute
-from instances.models import Instance
-
-VNC_PASSWORD = "s3cretVNCpass"
-
-
-class ConsoleSettingsAccessTestCase(TestCase):
-    def setUp(self):
-        User = get_user_model()
-        view_perm = Permission.objects.get(codename="view_instances")
-        self.superuser = User.objects.create_superuser(
-            username="vncpw_super", email="vncpw_super@example.com", password="x"
-        )
-        self.staff_viewer = User.objects.create_user(
-            username="vncpw_staff_viewer", password="x", is_staff=True
-        )
-        self.staff_viewer.user_permissions.add(view_perm)
-        self.staff_owner = User.objects.create_user(
-            username="vncpw_staff_owner", password="x", is_staff=True
-        )
-        self.vnc_owner = User.objects.create_user(username="vncpw_vnc_owner", password="x")
-
-        self.compute = Compute.objects.create(
-            name="vncpw-compute", hostname="127.0.0.1:1", login="root", password="", type=1
-        )
-        self.instance = Instance.objects.create(
-            compute=self.compute,
-            name="vncpw-vm",
-            uuid="cccccccc-dddd-eeee-ffff-000000000000",
-        )
-        UserInstance.objects.create(
-            instance=self.instance, user=self.staff_owner, is_change=True, is_vnc=False
-        )
-        UserInstance.objects.create(
-            instance=self.instance, user=self.vnc_owner, is_change=True, is_vnc=True
-        )
-
-    def _detail_page(self, user):
-        self.client.force_login(user)
-        with patch("instances.models.wvmInstance") as mock_wvm, patch.object(
-            Compute, "status", new_callable=PropertyMock, return_value=True
-        ):
-            proxy = mock_wvm.return_value
-            proxy.get_memory.return_value = 1024
-            proxy.get_cur_memory.return_value = 1024
-            proxy.get_max_memory.return_value = 4096
-            proxy.get_networks.return_value = []
-            proxy.get_ifaces.return_value = []
-            proxy.get_storages.return_value = []
-            proxy.get_console_passwd.return_value = VNC_PASSWORD
-            proxy.get_console_type.return_value = "vnc"
-            proxy.get_status.return_value = 5
-            proxy.get_disk_devices.return_value = []
-            proxy.get_media_devices.return_value = []
-            proxy.get_net_devices.return_value = []
-            response = self.client.get(
-                reverse("instances:instance", args=[self.instance.id])
-            )
-        self.assertEqual(response.status_code, 200)
-        return response.content.decode()
-
-    def test_staff_with_view_instances_does_not_see_vnc_password(self):
-        self.assertFalse(VNC_PASSWORD in self._detail_page(self.staff_viewer), "VNC password leaked")
-
-    def test_staff_owner_without_is_vnc_does_not_see_vnc_password(self):
-        self.assertFalse(VNC_PASSWORD in self._detail_page(self.staff_owner), "VNC password leaked")
-
-    def test_owner_with_is_change_and_is_vnc_sees_console_settings(self):
-        self.assertTrue(VNC_PASSWORD in self._detail_page(self.vnc_owner), "console settings missing")
-
-    def test_superuser_sees_console_settings(self):
-        self.assertTrue(VNC_PASSWORD in self._detail_page(self.superuser), "console settings missing")