add test

hvplot/converter.py

@@ -1830,6 +1830,11 @@ def method_wrapper(ds, x, y):
 
         # a workaround to show hover info for datashaded points
         if self.hover and self.datashade and self.kind == 'points':
+            if self.hover_mode != 'mouse':
+                param.main.param.warning(
+                    f'Got unsupported hover_mode={self.hover_mode!r} for '
+                    f"datashaded points; reverting to 'mouse'."
+                )
             inspector = inspect_points.instance(
                 streams=[PointerXY], transform=self._datashade_hover_transform
             )

hvplot/tests/testoperations.py

@@ -8,7 +8,7 @@
 import pandas as pd
 import pytest
 
-from holoviews import Store, render
+from holoviews import Store, render, renderer
 from holoviews.element import Image, QuadMesh, Points
 from holoviews.core.spaces import DynamicMap
 from holoviews.core.overlay import Overlay
@@ -324,6 +324,23 @@ def test_downsample_resample_when(self, kind, eltype):
         assert isinstance(element, eltype)
         assert len(element) == 0
 
+    @parameterized.expand([(None,), (True,), ('vline',), ('hline',)])
+    def test_include_inspect_point_hover(self, hover):
+        df = pd.DataFrame(
+            np.random.multivariate_normal((0, 0), [[0.1, 0.1], [0.1, 1.0]], (5000,))
+        ).rename({0: 'x', 1: 'y'}, axis=1)
+
+        p = df.hvplot.points(datashade=True, hover=hover)
+        assert renderer('bokeh').get_plot(p).name.startswith('Overlay')
+
+    def test_include_inspect_point_no_hover(self):
+        df = pd.DataFrame(
+            np.random.multivariate_normal((0, 0), [[0.1, 0.1], [0.1, 1.0]], (5000,))
+        ).rename({0: 'x', 1: 'y'}, axis=1)
+
+        p = df.hvplot.points(datashade=True, hover=False)
+        assert renderer('bokeh').get_plot(p).name.startswith('RGB')
+
 
 class TestChart2D(ComparisonTestCase):
     def setUp(self):