Skip the tests requiring Qt5

jkseppan · jkseppan · commit 4cfaa9e75069 · 2020-07-31T16:59:49.000+03:00
diff --git a/lib/matplotlib/tests/test_backend_qt.py b/lib/matplotlib/tests/test_backend_qt.py
@@ -9,6 +9,12 @@
 import pytest
 
 
+try:
+    from matplotlib.backends.qt_compat import QtGui
+except ImportError:
+    pytestmark = pytest.mark.skip('No usable Qt5 bindings')
+
+
 @pytest.fixture
 def qt_core(request):
     backend, = request.node.get_closest_marker('backend').args
diff --git a/lib/matplotlib/tests/test_backends_interactive.py b/lib/matplotlib/tests/test_backends_interactive.py
@@ -18,6 +18,12 @@
 # versions so we don't fail on missing backends.
 
 def _get_testable_interactive_backends():
+    try:
+        from matplotlib.backends.qt_compat import QtGui
+        have_qt5 = True
+    except ImportError:
+        have_qt5 = False
+
     backends = []
     for deps, backend in [
             (["cairo", "gi"], "gtk3agg"),
@@ -39,6 +45,8 @@ def _get_testable_interactive_backends():
             reason = "{} cannot be imported".format(", ".join(missing))
         elif backend == 'macosx' and os.environ.get('TF_BUILD'):
             reason = "macosx backend fails on Azure"
+        elif 'qt5' in backend and not have_qt5:
+            reason = "no usable Qt5 bindings"
         if reason:
             backend = pytest.param(
                 backend,
