def METHOD_NAME(self):
    """Test initialization with suppressed errors."""
    params = {
        "common": {
            "export_dir": None
        },
        "validation": {
            "common": {
                "data_source": "",
                "span_length": 0,
                "end_date": "2020-09-01",
                "suppressed_errors": [{"check_name": "a",
                                       "date": None,
                                       "signal": "b"},
                                      {"check_name":"c",
                                       "date": None,
                                       "geo_type": "d"}],
                "api_credentials": ""
            }
        }
    }
    validator = Validator(params)
    assert validator.suppressed_errors == [ValidationFailure("a", None, None, "b"),
                                           ValidationFailure("c", None, "d", "None")]