uitests: test xmleditor textview fallback

Signed-off-by: Cole Robinson <crobinso@redhat.com>

tests/uitests/test_details.py

@@ -1,6 +1,8 @@
 # This work is licensed under the GNU GPLv2 or later.
 # See the COPYING file in the top-level directory.
 
+import unittest
+
 import tests.utils
 from . import lib
 
@@ -799,6 +801,21 @@ def testDetailsXMLEdit(app):
     lib.utils.test_xmleditor_interactions(app, win, finish)
 
 
+@unittest.mock.patch.dict('os.environ',
+        {"VIRTINST_TEST_SUITE_FAKE_NO_SOURCEVIEW": "1"})
+def testDetailsXMLEditorSourceviewFallback(app):
+    """
+    Test XML editor standard bits, when falling back to gtk textview
+    """
+    app.open(xmleditor_enabled=True)
+    win = app.manager_open_details("test-clone-simple")
+    finish = win.find("config-apply")
+    xmleditor = win.find("XML editor")
+
+    # Do standard xmleditor tests
+    lib.utils.test_xmleditor_interactions(app, win, finish)
+
+
 def testDetailsConsoleChecksSSH(app):
     """
     Trigger a bunch of console connection failures to hit

virtManager/xmleditor.py

@@ -2,6 +2,8 @@
 # See the COPYING file in the top-level directory.
 
 # pylint: disable=wrong-import-order,ungrouped-imports
+import os
+
 import gi
 
 from virtinst import log
@@ -19,6 +21,10 @@ except ValueError:  # pragma: no cover
         log.debug("Not using GtkSource")
         have_gtksourceview = False
 
+if "VIRTINST_TEST_SUITE_FAKE_NO_SOURCEVIEW" in os.environ:
+    log.debug("Faking missing GtkSource for test suite")
+    have_gtksourceview = False
+
 if have_gtksourceview:
     from gi.repository import GtkSource
 else: