def test_calc_data_point_locations_custom_spacing(self):
     """_calc_data_point_locations() should return an array containing
     the x-axis locations for each data point, spaced according to a custom
     spacing scheme."""
     locs = _calc_data_point_locations([3, 4, 10, 12], 4, 2, 0.25, 0.75)
     self.assertEqual(locs, array([3.75, 5.0, 12.5, 15.0]))
 def test_calc_data_point_locations_custom_spacing(self):
     """_calc_data_point_locations() should return an array containing
     the x-axis locations for each data point, spaced according to a custom
     spacing scheme."""
     locs = _calc_data_point_locations([3, 4, 10, 12], 4, 2, 0.25, 0.75)
     self.assertEqual(locs, array([3.75, 5.0, 12.5, 15.0]))
 def test_calc_data_point_locations_default_spacing(self):
     """_calc_data_point_locations() should return an array containing
     the x-axis locations for each data point, evenly spaced from 1..n."""
     locs = _calc_data_point_locations(None, 4, 2, 0.25, 0.5)
     self.assertEqual(locs, array([1.0, 2.0, 3.0, 4.0]))
 def test_calc_data_point_locations_default_spacing(self):
     """_calc_data_point_locations() should return an array containing
     the x-axis locations for each data point, evenly spaced from 1..n."""
     locs = _calc_data_point_locations(None, 4, 2, 0.25, 0.5)
     self.assertEqual(locs, array([1.0, 2.0, 3.0, 4.0]))