docstr: Test for presence of glyphs in data and mapping. Testing for correct
  values for data and mapping are covered via other unit tests and hence
  are skipped here.
docstr_tok: ["Test","for","presence","of","glyphs","in","data","and","mapping",".","Testing","for","correct","values","for","data","and","mapping","are","covered","via","other","unit","tests","and","hence","are","skipped","here","."]
code: def test_get_data(self):
      """Test for presence of glyphs in data and mapping. Testing for correct
      values for data and mapping are covered via other unit tests and hence
      are skipped here.
  
      """
  
      data, mapping, style = self.plot.get_data(self.element, {}, {})
  
      glyphs = self.plot._style_groups.keys()
  
      for check in [data, mapping]:
          glyphs_mapped = check.keys()
          glyphs_plain = {x[:-2] for x in glyphs_mapped}
          self.assertTrue(all([x in glyphs_plain for x in glyphs]))
  
imports: from itertools import product
  import numpy
  from bokeh.models import ColorBar
  from holoviews.core.spaces import HoloMap
  from holoviews.element.raster import HeatMap
  from holoviews.plotting.bokeh import RadialHeatMapPlot
  from .test_plot import TestBokehPlot, bokeh_renderer
label_desc: Use image node_id 14 for calling the BokehRadialHeatMapPlotTests obj's underlying member method code with example usage: obj.test_get_data() without return types