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.

vrtManager/tests/test_console_setters.py

@@ -0,0 +1,46 @@
+import unittest
+from unittest.mock import MagicMock
+
+from django.conf import settings
+
+if not settings.configured:
+    settings.configure(MAC_OUI="52:54:10")
+
+from lxml import etree
+from vrtManager.instance import PERSISTENT_XML, wvmInstance
+
+LIVE = "<domain><devices><graphics type='vnc' passwd='live' keymap='en-us'><listen type='address'/></graphics></devices></domain>"
+PERSISTENT = "<domain><devices><graphics type='vnc' passwd='old'><listen type='address'/></graphics></devices></domain>"
+
+
+def running_vm_with_pending_changes():
+    vm = wvmInstance.__new__(wvmInstance)
+    vm.wvm = MagicMock()
+    vm._XMLDesc = MagicMock(side_effect=lambda flags: PERSISTENT if flags == PERSISTENT_XML else LIVE)
+    return vm
+
+
+class ConsoleSettersTestCase(unittest.TestCase):
+    """The graphics device to edit comes from the persistent definition."""
+
+    def defined_graphics(self, vm):
+        return etree.fromstring(vm.wvm.defineXML.call_args[0][0]).find("devices/graphics")
+
+    def test_setters_edit_the_persistent_graphics_device(self):
+        edits = {
+            "set_console_passwd": (lambda vm: vm.set_console_passwd("new"), "passwd", "new"),
+            "set_console_keymap": (lambda vm: vm.set_console_keymap("de"), "keymap", "de"),
+            "set_console_listener_addr": (lambda vm: vm.set_console_listener_addr("127.0.0.1"), "listen", "127.0.0.1"),
+        }
+        for name, (edit, attr, value) in edits.items():
+            with self.subTest(name):
+                vm = running_vm_with_pending_changes()
+                edit(vm)
+                graphics = self.defined_graphics(vm)
+                self.assertEqual(graphics.get(attr), value)
+                # Built from the persistent device, not the live one
+                self.assertNotEqual(graphics.get("passwd"), "live")
+
+
+if __name__ == "__main__":
+    unittest.main()