def METHOD_NAME(self):
    """Test _create_ensg_pkg_map using some arbitrary chips picked out of the list at
    http://brainarray.mbni.med.umich.edu/Brainarray/Database/CustomCDF/22.0.0/ensg.asp
    """
    ensg_pkg_map = array_express._create_ensg_pkg_map()
    self.assertIsNotNone(ensg_pkg_map)
    self.assertEquals(ensg_pkg_map["bovgene10st"], "bovgene10stbtensgprobe")
    self.assertEquals(ensg_pkg_map["hugene21st"], "hugene21sthsensgprobe")
    self.assertEquals(ensg_pkg_map["clariomdmouse"], "clariomdmousemmensgprobe")
    self.assertEquals(ensg_pkg_map["rattoxfx"], "rattoxfxrnensgprobe")
    self.assertEquals(ensg_pkg_map["yeast2"], "yeast2scensgprobe")