Simple import test for widgets.

Author: theengineear

plotly/tests/test_optional/test_ipython/test_widgets.py

@@ -0,0 +1,9 @@
+from unittest import TestCase
+
+from plotly.widgets import GraphWidget
+
+
+class TestWidgets(TestCase):
+
+    def test_instantiate_graph_widget(self):
+        widget = GraphWidget