new_contents: import unittest
  
  from numpy import alltrue, arange
  from enable.compiled_path import CompiledPath
  
  # Chaco imports
  from chaco.api import (ArrayDataSource, DataRange1D, LinearMapper,
                         PlotGraphicsContext)
  from chaco.text_plot_1d import TextPlot1D
  
  
  class TextPlot1DTest(unittest.TestCase):
  
      def setUp(self):
          self.size = (250, 250)
          data_source = ArrayDataSource(arange(10))
          text_data = ArrayDataSource(['one', 'two', 'three', 'four', 'five',
                                       'six', 'seven', 'eight', 'nine', 'ten'])
          index_range = DataRange1D()
          index_range.add(data_source)
          index_mapper = LinearMapper(range=index_range)
          self.scatterplot = TextPlot1D(
              index=data_source,
              index_mapper=index_mapper,
              value=text_data,
              border_visible=False,
          )
          self.scatterplot.outer_bounds = list(self.size)
  
      def test_scatter_1d(self):
          gc = PlotGraphicsContext(self.size)
          gc.render_component(self.scatterplot)
          actual = gc.bmp_array[:, :, :]
          self.assertFalse(alltrue(actual == 255))
  
      def test_scatter_1d_rotated(self):
          self.scatterplot.text_rotate_angle = 45
          gc = PlotGraphicsContext(self.size)
          gc.render_component(self.scatterplot)
          actual = gc.bmp_array[:, :, :]
          self.assertFalse(alltrue(actual == 255))
  
subject: Add text plot 1d test case.