chore: Using cache factory method (#10887)

Co-authored-by: John Bodley <john.bodley@airbnb.com>

tests/utils_tests.py

@@ -27,7 +27,6 @@ from unittest.mock import Mock, patch
 
 import numpy
 from flask import Flask, g
-from flask_caching import Cache
 import marshmallow
 from sqlalchemy.exc import ArgumentError
 
@@ -37,7 +36,6 @@ from superset.exceptions import CertificateException, SupersetException
 from superset.models.core import Database, Log
 from superset.models.dashboard import Dashboard
 from superset.models.slice import Slice
-from superset.utils.cache_manager import CacheManager
 from superset.utils.core import (
     base_json_conv,
     cast_to_num,
@@ -834,32 +832,6 @@ class TestUtils(SupersetTestCase):
         self.assertIsNone(parse_js_uri_path_item(None))
         self.assertIsNotNone(parse_js_uri_path_item("item"))
 
-    def test_setup_cache_null_config(self):
-        app = Flask(__name__)
-        cache_config = {"CACHE_TYPE": "null"}
-        assert isinstance(CacheManager._setup_cache(app, cache_config), Cache)
-
-    def test_setup_cache_standard_config(self):
-        app = Flask(__name__)
-        cache_config = {
-            "CACHE_TYPE": "redis",
-            "CACHE_DEFAULT_TIMEOUT": 60,
-            "CACHE_KEY_PREFIX": "superset_results",
-            "CACHE_REDIS_URL": "redis://localhost:6379/0",
-        }
-        assert isinstance(CacheManager._setup_cache(app, cache_config), Cache) is True
-
-    def test_setup_cache_custom_function(self):
-        app = Flask(__name__)
-        CustomCache = type("CustomCache", (object,), {"__init__": lambda *args: None})
-
-        def init_cache(app):
-            return CustomCache(app, {})
-
-        assert (
-            isinstance(CacheManager._setup_cache(app, init_cache), CustomCache) is True
-        )
-
     def test_get_stacktrace(self):
         with app.app_context():
             app.config["SHOW_STACKTRACE"] = True