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michaelsmolina pushed a commit to branch 5.0
in repository https://gitbox.apache.org/repos/asf/superset.git

commit 586d88c9ca35d47b58f84788ee9194a0353a8c93
Author: Elizabeth Thompson <[email protected]>
AuthorDate: Fri Mar 7 16:15:06 2025 -0800

    fix: add DateOffset to json serializer (#32532)
---
 superset/utils/json.py                 |   3 +
 tests/integration_tests/utils_tests.py | 541 +--------------------------------
 tests/unit_tests/utils/json_tests.py   |  88 +++++-
 tests/unit_tests/utils/test_core.py    | 474 +++++++++++++++++++++++++++++
 4 files changed, 561 insertions(+), 545 deletions(-)

diff --git a/superset/utils/json.py b/superset/utils/json.py
index 5bb92feada..689b0af6de 100644
--- a/superset/utils/json.py
+++ b/superset/utils/json.py
@@ -95,6 +95,9 @@ def base_json_conv(obj: Any) -> Any:  # noqa: C901
         return str(obj)
     if isinstance(obj, timedelta):
         return format_timedelta(obj)
+    if isinstance(obj, pd.DateOffset):
+        offset_attrs = ", ".join(f"{k}={v}" for k, v in obj.kwds.items())
+        return f"DateOffset({offset_attrs})"
     if isinstance(obj, bytes):
         try:
             return obj.decode("utf-8")
diff --git a/tests/integration_tests/utils_tests.py 
b/tests/integration_tests/utils_tests.py
index 8a09a23f9f..aa39923152 100644
--- a/tests/integration_tests/utils_tests.py
+++ b/tests/integration_tests/utils_tests.py
@@ -15,9 +15,7 @@
 # specific language governing permissions and limitations
 # under the License.
 # isort:skip_file
-import uuid
-from datetime import date, datetime, time, timedelta
-from decimal import Decimal
+from datetime import date, datetime
 import os
 import re
 from typing import Any, Optional
@@ -29,7 +27,6 @@ from tests.integration_tests.fixtures.birth_names_dashboard 
import (
     load_birth_names_data,  # noqa: F401
 )
 
-import numpy as np
 import pandas as pd
 import pytest
 from flask import Flask, g  # noqa: F401
@@ -53,16 +50,11 @@ from superset.utils.core import (
     get_form_data_token,
     as_list,
     recipients_string_to_list,
-    get_stacktrace,
     merge_extra_filters,
     merge_extra_form_data,
-    merge_request_params,
     normalize_dttm_col,
     parse_ssl_cert,
-    parse_js_uri_path_item,
     split,
-    zlib_compress,
-    zlib_decompress,
     DateColumn,
 )
 from superset.utils import json
@@ -81,506 +73,6 @@ from .fixtures.certificates import ssl_certificate
 
 
 class TestUtils(SupersetTestCase):
-    def test_json_int_dttm_ser(self):
-        dttm = datetime(2020, 1, 1)
-        ts = 1577836800000.0
-        assert json.json_int_dttm_ser(dttm) == ts
-        assert json.json_int_dttm_ser(date(2020, 1, 1)) == ts
-        assert json.json_int_dttm_ser(datetime(1970, 1, 1)) == 0
-        assert json.json_int_dttm_ser(date(1970, 1, 1)) == 0
-        assert json.json_int_dttm_ser(dttm + timedelta(milliseconds=1)) == (ts 
+ 1)
-        assert json.json_int_dttm_ser(np.int64(1)) == 1
-
-        with self.assertRaises(TypeError):  # noqa: PT027
-            json.json_int_dttm_ser(np.datetime64())
-
-    def test_json_iso_dttm_ser(self):
-        dttm = datetime(2020, 1, 1)
-        dt = date(2020, 1, 1)
-        t = time()
-        assert json.json_iso_dttm_ser(dttm) == dttm.isoformat()
-        assert json.json_iso_dttm_ser(dt) == dt.isoformat()
-        assert json.json_iso_dttm_ser(t) == t.isoformat()
-        assert json.json_iso_dttm_ser(np.int64(1)) == 1
-
-        assert (
-            json.json_iso_dttm_ser(np.datetime64(), pessimistic=True)
-            == "Unserializable [<class 'numpy.datetime64'>]"
-        )
-
-        with self.assertRaises(TypeError):  # noqa: PT027
-            json.json_iso_dttm_ser(np.datetime64())
-
-    def test_base_json_conv(self):
-        assert isinstance(json.base_json_conv(np.bool_(1)), bool)
-        assert isinstance(json.base_json_conv(np.int64(1)), int)
-        assert isinstance(json.base_json_conv(np.array([1, 2, 3])), list)
-        assert json.base_json_conv(np.array(None)) is None
-        assert isinstance(json.base_json_conv({1}), list)
-        assert isinstance(json.base_json_conv(Decimal("1.0")), float)
-        assert isinstance(json.base_json_conv(uuid.uuid4()), str)
-        assert isinstance(json.base_json_conv(time()), str)
-        assert isinstance(json.base_json_conv(timedelta(0)), str)
-        assert isinstance(json.base_json_conv(b""), str)
-        assert isinstance(json.base_json_conv(b"\xff\xfe"), str)
-        assert json.base_json_conv(b"\xff") == "[bytes]"
-
-        with pytest.raises(TypeError):
-            json.base_json_conv(np.datetime64())
-
-    def test_zlib_compression(self):
-        json_str = '{"test": 1}'
-        blob = zlib_compress(json_str)
-        got_str = zlib_decompress(blob)
-        assert json_str == got_str
-
-    def test_merge_extra_filters(self):
-        # does nothing if no extra filters
-        form_data = {"A": 1, "B": 2, "c": "test"}
-        expected = {**form_data, "adhoc_filters": [], "applied_time_extras": 
{}}
-        merge_extra_filters(form_data)
-        assert form_data == expected
-        # empty extra_filters
-        form_data = {"A": 1, "B": 2, "c": "test", "extra_filters": []}
-        expected = {
-            "A": 1,
-            "B": 2,
-            "c": "test",
-            "adhoc_filters": [],
-            "applied_time_extras": {},
-        }
-        merge_extra_filters(form_data)
-        assert form_data == expected
-        # copy over extra filters into empty filters
-        form_data = {
-            "extra_filters": [
-                {"col": "a", "op": "in", "val": "someval"},
-                {"col": "B", "op": "==", "val": ["c1", "c2"]},
-            ]
-        }
-        expected = {
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": "someval",
-                    "expressionType": "SIMPLE",
-                    "filterOptionName": "90cfb3c34852eb3bc741b0cc20053b46",
-                    "isExtra": True,
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2"],
-                    "expressionType": "SIMPLE",
-                    "filterOptionName": "6c178d069965f1c02640661280415d96",
-                    "isExtra": True,
-                    "operator": "==",
-                    "subject": "B",
-                },
-            ],
-            "applied_time_extras": {},
-        }
-        merge_extra_filters(form_data)
-        assert form_data == expected
-        # adds extra filters to existing filters
-        form_data = {
-            "extra_filters": [
-                {"col": "a", "op": "in", "val": "someval"},
-                {"col": "B", "op": "==", "val": ["c1", "c2"]},
-            ],
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": ["G1", "g2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "!=",
-                    "subject": "D",
-                }
-            ],
-        }
-        expected = {
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": ["G1", "g2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "!=",
-                    "subject": "D",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": "someval",
-                    "expressionType": "SIMPLE",
-                    "filterOptionName": "90cfb3c34852eb3bc741b0cc20053b46",
-                    "isExtra": True,
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2"],
-                    "expressionType": "SIMPLE",
-                    "filterOptionName": "6c178d069965f1c02640661280415d96",
-                    "isExtra": True,
-                    "operator": "==",
-                    "subject": "B",
-                },
-            ],
-            "applied_time_extras": {},
-        }
-        merge_extra_filters(form_data)
-        assert form_data == expected
-        # adds extra filters to existing filters and sets time options
-        form_data = {
-            "extra_filters": [
-                {"col": "__time_range", "op": "in", "val": "1 year ago :"},
-                {"col": "__time_col", "op": "in", "val": "birth_year"},
-                {"col": "__time_grain", "op": "in", "val": "years"},
-                {"col": "A", "op": "like", "val": "hello"},
-            ]
-        }
-        expected = {
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": "hello",
-                    "expressionType": "SIMPLE",
-                    "filterOptionName": "e3cbdd92a2ae23ca92c6d7fca42e36a6",
-                    "isExtra": True,
-                    "operator": "like",
-                    "subject": "A",
-                }
-            ],
-            "time_range": "1 year ago :",
-            "granularity_sqla": "birth_year",
-            "time_grain_sqla": "years",
-            "applied_time_extras": {
-                "__time_range": "1 year ago :",
-                "__time_col": "birth_year",
-                "__time_grain": "years",
-            },
-        }
-        merge_extra_filters(form_data)
-        assert form_data == expected
-
-    def test_merge_extra_filters_ignores_empty_filters(self):
-        form_data = {
-            "extra_filters": [
-                {"col": "a", "op": "in", "val": ""},
-                {"col": "B", "op": "==", "val": []},
-            ]
-        }
-        expected = {"adhoc_filters": [], "applied_time_extras": {}}
-        merge_extra_filters(form_data)
-        assert form_data == expected
-
-    def test_merge_extra_filters_ignores_nones(self):
-        form_data = {
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": "",
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": None,
-                }
-            ],
-            "extra_filters": [{"col": "B", "op": "==", "val": []}],
-        }
-        expected = {
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": "",
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": None,
-                }
-            ],
-            "applied_time_extras": {},
-        }
-        merge_extra_filters(form_data)
-        assert form_data == expected
-
-    def test_merge_extra_filters_ignores_equal_filters(self):
-        form_data = {
-            "extra_filters": [
-                {"col": "a", "op": "in", "val": "someval"},
-                {"col": "B", "op": "==", "val": ["c1", "c2"]},
-                {"col": "c", "op": "in", "val": ["c1", 1, None]},
-            ],
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": "someval",
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "==",
-                    "subject": "B",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", 1, None],
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": "c",
-                },
-            ],
-        }
-        expected = {
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": "someval",
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "==",
-                    "subject": "B",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", 1, None],
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": "c",
-                },
-            ],
-            "applied_time_extras": {},
-        }
-        merge_extra_filters(form_data)
-        assert form_data == expected
-
-    def test_merge_extra_filters_merges_different_val_types(self):
-        form_data = {
-            "extra_filters": [
-                {"col": "a", "op": "in", "val": ["g1", "g2"]},
-                {"col": "B", "op": "==", "val": ["c1", "c2"]},
-            ],
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": "someval",
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "==",
-                    "subject": "B",
-                },
-            ],
-        }
-        expected = {
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": "someval",
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "==",
-                    "subject": "B",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["g1", "g2"],
-                    "expressionType": "SIMPLE",
-                    "filterOptionName": "c11969c994b40a83a4ae7d48ff1ea28e",
-                    "isExtra": True,
-                    "operator": "in",
-                    "subject": "a",
-                },
-            ],
-            "applied_time_extras": {},
-        }
-        merge_extra_filters(form_data)
-        assert form_data == expected
-        form_data = {
-            "extra_filters": [
-                {"col": "a", "op": "in", "val": "someval"},
-                {"col": "B", "op": "==", "val": ["c1", "c2"]},
-            ],
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": ["g1", "g2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "==",
-                    "subject": "B",
-                },
-            ],
-        }
-        expected = {
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": ["g1", "g2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "==",
-                    "subject": "B",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": "someval",
-                    "expressionType": "SIMPLE",
-                    "filterOptionName": "90cfb3c34852eb3bc741b0cc20053b46",
-                    "isExtra": True,
-                    "operator": "in",
-                    "subject": "a",
-                },
-            ],
-            "applied_time_extras": {},
-        }
-        merge_extra_filters(form_data)
-        assert form_data == expected
-
-    def test_merge_extra_filters_adds_unequal_lists(self):
-        form_data = {
-            "extra_filters": [
-                {"col": "a", "op": "in", "val": ["g1", "g2", "g3"]},
-                {"col": "B", "op": "==", "val": ["c1", "c2", "c3"]},
-            ],
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": ["g1", "g2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "==",
-                    "subject": "B",
-                },
-            ],
-        }
-        expected = {
-            "adhoc_filters": [
-                {
-                    "clause": "WHERE",
-                    "comparator": ["g1", "g2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2"],
-                    "expressionType": "SIMPLE",
-                    "operator": "==",
-                    "subject": "B",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["g1", "g2", "g3"],
-                    "expressionType": "SIMPLE",
-                    "filterOptionName": "21cbb68af7b17e62b3b2f75e2190bfd7",
-                    "isExtra": True,
-                    "operator": "in",
-                    "subject": "a",
-                },
-                {
-                    "clause": "WHERE",
-                    "comparator": ["c1", "c2", "c3"],
-                    "expressionType": "SIMPLE",
-                    "filterOptionName": "0a8dcb928f1f4bba97643c6e68d672f1",
-                    "isExtra": True,
-                    "operator": "==",
-                    "subject": "B",
-                },
-            ],
-            "applied_time_extras": {},
-        }
-        merge_extra_filters(form_data)
-        assert form_data == expected
-
-    def test_merge_extra_filters_when_applied_time_extras_predefined(self):
-        form_data = {"applied_time_extras": {"__time_range": "Last week"}}
-        merge_extra_filters(form_data)
-
-        assert form_data == {
-            "applied_time_extras": {"__time_range": "Last week"},
-            "adhoc_filters": [],
-        }
-
-    def test_merge_request_params_when_url_params_undefined(self):
-        form_data = {"since": "2000", "until": "now"}
-        url_params = {"form_data": form_data, "dashboard_ids": "(1,2,3,4,5)"}
-        merge_request_params(form_data, url_params)
-        assert "url_params" in form_data.keys()
-        assert "dashboard_ids" in form_data["url_params"]
-        assert "form_data" not in form_data.keys()
-
-    def test_merge_request_params_when_url_params_predefined(self):
-        form_data = {
-            "since": "2000",
-            "until": "now",
-            "url_params": {"abc": "123", "dashboard_ids": "(1,2,3)"},
-        }
-        url_params = {"form_data": form_data, "dashboard_ids": "(1,2,3,4,5)"}
-        merge_request_params(form_data, url_params)
-        assert "url_params" in form_data.keys()
-        assert "abc" in form_data["url_params"]
-        assert url_params["dashboard_ids"] == 
form_data["url_params"]["dashboard_ids"]
-
-    def test_format_timedelta(self):
-        assert json.format_timedelta(timedelta(0)) == "0:00:00"
-        assert json.format_timedelta(timedelta(days=1)) == "1 day, 0:00:00"
-        assert json.format_timedelta(timedelta(minutes=-6)) == "-0:06:00"
-        assert (
-            json.format_timedelta(timedelta(0) - timedelta(days=1, hours=5, 
minutes=6))
-            == "-1 day, 5:06:00"
-        )
-        assert (
-            json.format_timedelta(timedelta(0) - timedelta(days=16, hours=4, 
minutes=3))
-            == "-16 days, 4:03:00"
-        )
-
-    def test_validate_json(self):
-        valid = '{"a": 5, "b": [1, 5, ["g", "h"]]}'
-        assert json.validate_json(valid) is None
-        invalid = '{"a": 5, "b": [1, 5, ["g", "h]]}'
-        with self.assertRaises(json.JSONDecodeError):  # noqa: PT027
-            json.validate_json(invalid)
-
     def test_convert_legacy_filters_into_adhoc_where(self):
         form_data = {"where": "a = 1"}
         expected = {
@@ -659,37 +151,6 @@ class TestUtils(SupersetTestCase):
         convert_legacy_filters_into_adhoc(form_data)
         assert form_data == expected
 
-    def test_parse_js_uri_path_items_eval_undefined(self):
-        assert parse_js_uri_path_item("undefined", eval_undefined=True) is None
-        assert parse_js_uri_path_item("null", eval_undefined=True) is None
-        assert "undefined" == parse_js_uri_path_item("undefined")
-        assert "null" == parse_js_uri_path_item("null")
-
-    def test_parse_js_uri_path_items_unquote(self):
-        assert "slashed/name" == parse_js_uri_path_item("slashed%2fname")
-        assert "slashed%2fname" == parse_js_uri_path_item(
-            "slashed%2fname", unquote=False
-        )
-
-    def test_parse_js_uri_path_items_item_optional(self):
-        assert parse_js_uri_path_item(None) is None
-        assert parse_js_uri_path_item("item") is not None
-
-    def test_get_stacktrace(self):
-        app.config["SHOW_STACKTRACE"] = True
-        try:
-            raise Exception("NONONO!")
-        except Exception:
-            stacktrace = get_stacktrace()
-            assert "NONONO" in stacktrace
-
-        app.config["SHOW_STACKTRACE"] = False
-        try:
-            raise Exception("NONONO!")
-        except Exception:
-            stacktrace = get_stacktrace()
-            assert stacktrace is None
-
     def test_split(self):
         assert list(split("a b")) == ["a", "b"]
         assert list(split("a,b", delimiter=",")) == ["a", "b"]
diff --git a/tests/unit_tests/utils/json_tests.py 
b/tests/unit_tests/utils/json_tests.py
index 39643cbd53..3356577407 100644
--- a/tests/unit_tests/utils/json_tests.py
+++ b/tests/unit_tests/utils/json_tests.py
@@ -15,13 +15,21 @@
 # specific language governing permissions and limitations
 # under the License.
 import copy
-import datetime
 import math
+import uuid
+from datetime import date, datetime, time, timedelta
+from decimal import Decimal
 from unittest.mock import MagicMock
 
+import numpy as np
+import pandas as pd
 import pytest
 
 from superset.utils import json
+from superset.utils.core import (
+    zlib_compress,
+    zlib_decompress,
+)
 
 
 def test_json_loads():
@@ -94,19 +102,35 @@ def test_json_dumps_encoding():
 
 def test_json_iso_dttm_ser():
     data = {
-        "datetime": datetime.datetime(2021, 1, 1, 0, 0, 0),
-        "date": datetime.date(2021, 1, 1),
+        "datetime": datetime(2021, 1, 1, 0, 0, 0),
+        "date": date(2021, 1, 1),
+        "dttm": datetime(2020, 1, 1),
+        "dt": date(2020, 1, 1),
+        "t": time(),
     }
+
     json_str = json.dumps(data, default=json.json_iso_dttm_ser)
     reloaded_data = json.loads(json_str)
     assert reloaded_data["datetime"] == "2021-01-01T00:00:00"
     assert reloaded_data["date"] == "2021-01-01"
+    assert reloaded_data["dttm"] == "2020-01-01T00:00:00"
+    assert reloaded_data["dt"] == "2020-01-01"
+    assert reloaded_data["t"] == "00:00:00"
+    assert json.json_iso_dttm_ser(np.int64(1)) == 1
+
+    assert (
+        json.json_iso_dttm_ser(np.datetime64(), pessimistic=True)
+        == "Unserializable [<class 'numpy.datetime64'>]"
+    )
+
+    with pytest.raises(TypeError):
+        json.json_iso_dttm_ser(np.datetime64())
 
 
 def test_pessimistic_json_iso_dttm_ser():
     data = {
-        "datetime": datetime.datetime(2021, 1, 1, 0, 0, 0),
-        "date": datetime.date(2021, 1, 1),
+        "datetime": datetime(2021, 1, 1, 0, 0, 0),
+        "date": date(2021, 1, 1),
     }
     json_str = json.dumps(data, default=json.pessimistic_json_iso_dttm_ser)
     reloaded_data = json.loads(json_str)
@@ -192,3 +216,57 @@ def test_sensitive_fields() -> None:
             "user_token": "NEW_TOKEN",
         },
     }
+
+
+def test_base_json_conv():
+    assert json.base_json_conv(np.bool_(1)) is True
+    assert json.base_json_conv(np.int64(1)) == 1
+    assert json.base_json_conv(np.array([1, 2, 3])) == [1, 2, 3]
+    assert json.base_json_conv(np.array(None)) is None
+    assert json.base_json_conv({1}) == [1]
+    assert json.base_json_conv(Decimal("1.0")) == 1.0
+    assert isinstance(json.base_json_conv(uuid.uuid4()), str)
+    assert json.base_json_conv(time(12, 0)) == "12:00:00"
+    assert json.base_json_conv(timedelta(0)) == "0:00:00"
+    assert json.base_json_conv(b"") == ""
+    assert isinstance(json.base_json_conv(b"\xff\xfe"), str)
+    assert json.base_json_conv(pd.DateOffset(days=1)) == "DateOffset(days=1)"
+    assert json.base_json_conv(b"\xff") == "[bytes]"
+
+    with pytest.raises(TypeError):
+        json.base_json_conv(np.datetime64())
+
+
+def test_zlib_compression():
+    json_str = '{"test": 1}'
+    blob = zlib_compress(json_str)
+    got_str = zlib_decompress(blob)
+    assert json_str == got_str
+
+
+def test_json_int_dttm_ser():
+    dttm = datetime(2020, 1, 1)
+    ts = 1577836800000.0
+    assert json.json_int_dttm_ser(dttm) == ts
+    assert json.json_int_dttm_ser(date(2020, 1, 1)) == ts
+    assert json.json_int_dttm_ser(datetime(1970, 1, 1)) == 0
+    assert json.json_int_dttm_ser(date(1970, 1, 1)) == 0
+    assert json.json_int_dttm_ser(dttm + timedelta(milliseconds=1)) == (ts + 1)
+    assert json.json_int_dttm_ser(np.int64(1)) == 1
+
+    with pytest.raises(TypeError):
+        json.json_int_dttm_ser(np.datetime64())
+
+
+def test_format_timedelta():
+    assert json.format_timedelta(timedelta(0)) == "0:00:00"
+    assert json.format_timedelta(timedelta(days=1)) == "1 day, 0:00:00"
+    assert json.format_timedelta(timedelta(minutes=-6)) == "-0:06:00"
+    assert (
+        json.format_timedelta(timedelta(0) - timedelta(days=1, hours=5, 
minutes=6))
+        == "-1 day, 5:06:00"
+    )
+    assert (
+        json.format_timedelta(timedelta(0) - timedelta(days=16, hours=4, 
minutes=3))
+        == "-16 days, 4:03:00"
+    )
diff --git a/tests/unit_tests/utils/test_core.py 
b/tests/unit_tests/utils/test_core.py
index cdeb58a50b..209386d0c6 100644
--- a/tests/unit_tests/utils/test_core.py
+++ b/tests/unit_tests/utils/test_core.py
@@ -21,6 +21,7 @@ from unittest.mock import MagicMock, patch
 
 import pandas as pd
 import pytest
+from flask import current_app
 
 from superset.exceptions import SupersetException
 from superset.utils.core import (
@@ -30,9 +31,13 @@ from superset.utils.core import (
     generic_find_constraint_name,
     generic_find_fk_constraint_name,
     get_datasource_full_name,
+    get_stacktrace,
     is_test,
+    merge_extra_filters,
+    merge_request_params,
     normalize_dttm_col,
     parse_boolean_string,
+    parse_js_uri_path_item,
     QueryObjectFilterClause,
     remove_extra_adhoc_filters,
 )
@@ -396,3 +401,472 @@ def test_get_datasource_full_name():
         get_datasource_full_name("db", "table", "catalog", None)
         == "[db].[catalog].[table]"
     )
+
+
+def test_merge_extra_filters():
+    # does nothing if no extra filters
+    form_data = {"A": 1, "B": 2, "c": "test"}
+    expected = {**form_data, "adhoc_filters": [], "applied_time_extras": {}}
+    merge_extra_filters(form_data)
+    assert form_data == expected
+    # empty extra_filters
+    form_data = {"A": 1, "B": 2, "c": "test", "extra_filters": []}
+    expected = {
+        "A": 1,
+        "B": 2,
+        "c": "test",
+        "adhoc_filters": [],
+        "applied_time_extras": {},
+    }
+    merge_extra_filters(form_data)
+    assert form_data == expected
+    # copy over extra filters into empty filters
+    form_data = {
+        "extra_filters": [
+            {"col": "a", "op": "in", "val": "someval"},
+            {"col": "B", "op": "==", "val": ["c1", "c2"]},
+        ]
+    }
+    expected = {
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": "someval",
+                "expressionType": "SIMPLE",
+                "filterOptionName": "90cfb3c34852eb3bc741b0cc20053b46",
+                "isExtra": True,
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2"],
+                "expressionType": "SIMPLE",
+                "filterOptionName": "6c178d069965f1c02640661280415d96",
+                "isExtra": True,
+                "operator": "==",
+                "subject": "B",
+            },
+        ],
+        "applied_time_extras": {},
+    }
+    merge_extra_filters(form_data)
+    assert form_data == expected
+    # adds extra filters to existing filters
+    form_data = {
+        "extra_filters": [
+            {"col": "a", "op": "in", "val": "someval"},
+            {"col": "B", "op": "==", "val": ["c1", "c2"]},
+        ],
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": ["G1", "g2"],
+                "expressionType": "SIMPLE",
+                "operator": "!=",
+                "subject": "D",
+            }
+        ],
+    }
+    expected = {
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": ["G1", "g2"],
+                "expressionType": "SIMPLE",
+                "operator": "!=",
+                "subject": "D",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": "someval",
+                "expressionType": "SIMPLE",
+                "filterOptionName": "90cfb3c34852eb3bc741b0cc20053b46",
+                "isExtra": True,
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2"],
+                "expressionType": "SIMPLE",
+                "filterOptionName": "6c178d069965f1c02640661280415d96",
+                "isExtra": True,
+                "operator": "==",
+                "subject": "B",
+            },
+        ],
+        "applied_time_extras": {},
+    }
+    merge_extra_filters(form_data)
+    assert form_data == expected
+    # adds extra filters to existing filters and sets time options
+    form_data = {
+        "extra_filters": [
+            {"col": "__time_range", "op": "in", "val": "1 year ago :"},
+            {"col": "__time_col", "op": "in", "val": "birth_year"},
+            {"col": "__time_grain", "op": "in", "val": "years"},
+            {"col": "A", "op": "like", "val": "hello"},
+        ]
+    }
+    expected = {
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": "hello",
+                "expressionType": "SIMPLE",
+                "filterOptionName": "e3cbdd92a2ae23ca92c6d7fca42e36a6",
+                "isExtra": True,
+                "operator": "like",
+                "subject": "A",
+            }
+        ],
+        "time_range": "1 year ago :",
+        "granularity_sqla": "birth_year",
+        "time_grain_sqla": "years",
+        "applied_time_extras": {
+            "__time_range": "1 year ago :",
+            "__time_col": "birth_year",
+            "__time_grain": "years",
+        },
+    }
+    merge_extra_filters(form_data)
+    assert form_data == expected
+
+
+def test_merge_extra_filters_ignores_empty_filters():
+    form_data = {
+        "extra_filters": [
+            {"col": "a", "op": "in", "val": ""},
+            {"col": "B", "op": "==", "val": []},
+        ]
+    }
+    expected = {"adhoc_filters": [], "applied_time_extras": {}}
+    merge_extra_filters(form_data)
+    assert form_data == expected
+
+
+def test_merge_extra_filters_ignores_nones():
+    form_data = {
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": "",
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": None,
+            }
+        ],
+        "extra_filters": [{"col": "B", "op": "==", "val": []}],
+    }
+    expected = {
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": "",
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": None,
+            }
+        ],
+        "applied_time_extras": {},
+    }
+    merge_extra_filters(form_data)
+    assert form_data == expected
+
+
+def test_merge_extra_filters_ignores_equal_filters():
+    form_data = {
+        "extra_filters": [
+            {"col": "a", "op": "in", "val": "someval"},
+            {"col": "B", "op": "==", "val": ["c1", "c2"]},
+            {"col": "c", "op": "in", "val": ["c1", 1, None]},
+        ],
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": "someval",
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2"],
+                "expressionType": "SIMPLE",
+                "operator": "==",
+                "subject": "B",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", 1, None],
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": "c",
+            },
+        ],
+    }
+    expected = {
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": "someval",
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2"],
+                "expressionType": "SIMPLE",
+                "operator": "==",
+                "subject": "B",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", 1, None],
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": "c",
+            },
+        ],
+        "applied_time_extras": {},
+    }
+    merge_extra_filters(form_data)
+    assert form_data == expected
+
+
+def test_merge_extra_filters_merges_different_val_types():
+    form_data = {
+        "extra_filters": [
+            {"col": "a", "op": "in", "val": ["g1", "g2"]},
+            {"col": "B", "op": "==", "val": ["c1", "c2"]},
+        ],
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": "someval",
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2"],
+                "expressionType": "SIMPLE",
+                "operator": "==",
+                "subject": "B",
+            },
+        ],
+    }
+    expected = {
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": "someval",
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2"],
+                "expressionType": "SIMPLE",
+                "operator": "==",
+                "subject": "B",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["g1", "g2"],
+                "expressionType": "SIMPLE",
+                "filterOptionName": "c11969c994b40a83a4ae7d48ff1ea28e",
+                "isExtra": True,
+                "operator": "in",
+                "subject": "a",
+            },
+        ],
+        "applied_time_extras": {},
+    }
+    merge_extra_filters(form_data)
+    assert form_data == expected
+    form_data = {
+        "extra_filters": [
+            {"col": "a", "op": "in", "val": "someval"},
+            {"col": "B", "op": "==", "val": ["c1", "c2"]},
+        ],
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": ["g1", "g2"],
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2"],
+                "expressionType": "SIMPLE",
+                "operator": "==",
+                "subject": "B",
+            },
+        ],
+    }
+    expected = {
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": ["g1", "g2"],
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2"],
+                "expressionType": "SIMPLE",
+                "operator": "==",
+                "subject": "B",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": "someval",
+                "expressionType": "SIMPLE",
+                "filterOptionName": "90cfb3c34852eb3bc741b0cc20053b46",
+                "isExtra": True,
+                "operator": "in",
+                "subject": "a",
+            },
+        ],
+        "applied_time_extras": {},
+    }
+    merge_extra_filters(form_data)
+    assert form_data == expected
+
+
+def test_merge_extra_filters_adds_unequal_lists():
+    form_data = {
+        "extra_filters": [
+            {"col": "a", "op": "in", "val": ["g1", "g2", "g3"]},
+            {"col": "B", "op": "==", "val": ["c1", "c2", "c3"]},
+        ],
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": ["g1", "g2"],
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2"],
+                "expressionType": "SIMPLE",
+                "operator": "==",
+                "subject": "B",
+            },
+        ],
+    }
+    expected = {
+        "adhoc_filters": [
+            {
+                "clause": "WHERE",
+                "comparator": ["g1", "g2"],
+                "expressionType": "SIMPLE",
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2"],
+                "expressionType": "SIMPLE",
+                "operator": "==",
+                "subject": "B",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["g1", "g2", "g3"],
+                "expressionType": "SIMPLE",
+                "filterOptionName": "21cbb68af7b17e62b3b2f75e2190bfd7",
+                "isExtra": True,
+                "operator": "in",
+                "subject": "a",
+            },
+            {
+                "clause": "WHERE",
+                "comparator": ["c1", "c2", "c3"],
+                "expressionType": "SIMPLE",
+                "filterOptionName": "0a8dcb928f1f4bba97643c6e68d672f1",
+                "isExtra": True,
+                "operator": "==",
+                "subject": "B",
+            },
+        ],
+        "applied_time_extras": {},
+    }
+    merge_extra_filters(form_data)
+    assert form_data == expected
+
+
+def test_merge_extra_filters_when_applied_time_extras_predefined():
+    form_data = {"applied_time_extras": {"__time_range": "Last week"}}
+    merge_extra_filters(form_data)
+
+    assert form_data == {
+        "applied_time_extras": {"__time_range": "Last week"},
+        "adhoc_filters": [],
+    }
+
+
+def test_merge_request_params_when_url_params_undefined():
+    form_data = {"since": "2000", "until": "now"}
+    url_params = {"form_data": form_data, "dashboard_ids": "(1,2,3,4,5)"}
+    merge_request_params(form_data, url_params)
+    assert "url_params" in form_data.keys()
+    assert "dashboard_ids" in form_data["url_params"]
+    assert "form_data" not in form_data.keys()
+
+
+def test_merge_request_params_when_url_params_predefined():
+    form_data = {
+        "since": "2000",
+        "until": "now",
+        "url_params": {"abc": "123", "dashboard_ids": "(1,2,3)"},
+    }
+    url_params = {"form_data": form_data, "dashboard_ids": "(1,2,3,4,5)"}
+    merge_request_params(form_data, url_params)
+    assert "url_params" in form_data.keys()
+    assert "abc" in form_data["url_params"]
+    assert url_params["dashboard_ids"] == 
form_data["url_params"]["dashboard_ids"]
+
+
+def test_parse_js_uri_path_items_eval_undefined():
+    assert parse_js_uri_path_item("undefined", eval_undefined=True) is None
+    assert parse_js_uri_path_item("null", eval_undefined=True) is None
+    assert "undefined" == parse_js_uri_path_item("undefined")
+    assert "null" == parse_js_uri_path_item("null")
+
+
+def test_parse_js_uri_path_items_unquote():
+    assert "slashed/name" == parse_js_uri_path_item("slashed%2fname")
+    assert "slashed%2fname" == parse_js_uri_path_item("slashed%2fname", 
unquote=False)
+
+
+def test_parse_js_uri_path_items_item_optional():
+    assert parse_js_uri_path_item(None) is None
+    assert parse_js_uri_path_item("item") is not None
+
+
+def test_get_stacktrace():
+    current_app.config["SHOW_STACKTRACE"] = True
+    try:
+        raise Exception("NONONO!")
+    except Exception:
+        stacktrace = get_stacktrace()
+        assert "NONONO" in stacktrace
+
+    current_app.config["SHOW_STACKTRACE"] = False
+    try:
+        raise Exception("NONONO!")
+    except Exception:
+        stacktrace = get_stacktrace()
+        assert stacktrace is None


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