Add bqplot viewer test

Author: mwcraig

astrowidgets/tests/test_widget_api_bqplot.py

@@ -0,0 +1,14 @@
+import pytest
+
+from .widget_api_test import ImageWidgetAPITest
+
+_ = pytest.importorskip("bqplot",
+                        reason="Package required for test is not "
+                               "available.")
+from astrowidgets.bqplot import ImageWidget  # noqa: E402
+
+
+class TestGingaWidget(ImageWidgetAPITest):
+       def setup_class(self):
+              self.image_widget_class = ImageWidget
+              super().setup_class(self)