def METHOD_NAME(self):
    """Test input filtering"""
    self.imp_raster = "imp_filtered"
    self.ref_raster = "ref_filtered"
    self.assertModule(
        "r.in.pdal",
        input=self.las_file,
        output=self.imp_raster,
        flags="o",
        quiet=True,
        method="mode",
        type="CELL",
        dimension="source",
        zrange=(2, 10),
        irange=(10, 20),
        drange=(1, 1),
    )
    self.assertRasterExists(self.imp_raster)
    self.runModule(
        "r.in.ascii",
        input=os.path.join(self.data_dir, "res_filter_z_int_source.ascii"),
        output=self.ref_raster,
    )
    self.assertRastersEqual(self.imp_raster, self.ref_raster, 0)