tests: added fixture with energy usage instead of example (#11308)

* Added energy usage fixture. Updated dashboard utils and unicode fixture with new method parameters.

* Add energy fixture to tests/access_tests.py

* Add energy fixture to tests/core_tests.py

* Add energy fixture to tests/dashboard_tests.py

* Add energy fixture to tests/datasets/api_tests.py

* Add energy fixture to tests/db_engine_specs/base_engine_spec_tests.py

* Add energy fixture to tests/import_export_tests.py

* Add energy fixture to tests/model_tests.py

* Add energy fixture to tests/query_context_tests.py

* Add energy fixture to tests/security_tests.py

* Add energy fixture to tests/charts/api_tests.py

* Changed formatting of slices' parameters in energy usage fixture

* Removed loading energy udage data from test conf file

* Add energy fixture to tests/databases/api_tests.py

* Fixes after review: removed isort:skip, load_charts->load_energy_charts, removed unused import.

* Added energy fixture to tests/charts/commands_tests.py and retrieving proper Slice by name

* Fixed charts/api_tests.py to use energy_usage from fixtures

* Fixed datasets/commands_tests.py to retrieve dataset by name and use energy_usage fixture

* Changed energy usage data to generated data and fixed chart tests which was checking energy usage data

tests/dashboard_utils.py

@@ -29,7 +29,11 @@ from superset.models.slice import Slice
 
 
 def create_table_for_dashboard(
-    df: DataFrame, table_name: str, database: Database, dtype: Dict[str, Any]
+    df: DataFrame,
+    table_name: str,
+    database: Database,
+    dtype: Dict[str, Any],
+    table_description: str = "",
 ) -> SqlaTable:
     df.to_sql(
         table_name,
@@ -48,6 +52,7 @@ def create_table_for_dashboard(
     if not table:
         table = table_source(table_name=table_name)
     table.database = database
+    table.description = table_description
     db.session.merge(table)
     db.session.commit()