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.

console/tests/test_socketiod_child.py

@@ -16,7 +16,7 @@ try:
 except ImportError:  # pragma: no cover
     socketio = None
 
-ROOT = Path(__file__).resolve().parent.parent
+ROOT = Path(__file__).resolve().parent.parent.parent
 SOCKETIOD = ROOT / "console" / "socketiod"
 
 

console/tests/test_socketiod_disabled.py

@@ -5,7 +5,7 @@ import tempfile
 import unittest
 from pathlib import Path
 
-ROOT = Path(__file__).resolve().parent.parent
+ROOT = Path(__file__).resolve().parent.parent.parent
 SOCKETIOD = ROOT / "console" / "socketiod"
 
 

console/tests/test_views.py

@@ -16,7 +16,7 @@ from instances.models import Instance
 from libvirt import libvirtError
 
 # Dynamically load console/novncd script for testing
-NOVNCD_PATH = str(Path(__file__).resolve().parent / "novncd")
+NOVNCD_PATH = str(Path(__file__).resolve().parent.parent / "novncd")
 _loader = importlib.machinery.SourceFileLoader("novncd_mod", NOVNCD_PATH)
 _spec = importlib.util.spec_from_file_location(
     "novncd_mod", NOVNCD_PATH, loader=_loader