Write various tests for metric queries with custom granularity

tests_metricflow/query_rendering/test_custom_granularity.py

@@ -6,17 +6,23 @@
 
 from __future__ import annotations
 
+import datetime as dt
+
 import pytest
 from _pytest.fixtures import FixtureRequest
 from dbt_semantic_interfaces.references import EntityReference
+from dbt_semantic_interfaces.type_enums.date_part import DatePart
 from dbt_semantic_interfaces.type_enums.time_granularity import TimeGranularity
+from metricflow_semantics.filters.time_constraint import TimeRangeConstraint
 from metricflow_semantics.specs.metric_spec import MetricSpec
 from metricflow_semantics.specs.query_spec import MetricFlowQuerySpec
 from metricflow_semantics.specs.time_dimension_spec import TimeDimensionSpec
 from metricflow_semantics.test_helpers.config_helpers import MetricFlowTestConfiguration
 from metricflow_semantics.time.granularity import ExpandedTimeGranularity
+from metricflow_semantics.test_helpers.metric_time_dimension import MTD_SPEC_DAY
 
 from metricflow.dataflow.builder.dataflow_plan_builder import DataflowPlanBuilder
+from metricflow.dataset.dataset_classes import DataSet
 from metricflow.plan_conversion.dataflow_to_sql import DataflowToSqlQueryPlanConverter
 from metricflow.protocols.sql_client import SqlClient
 from tests_metricflow.query_rendering.compare_rendered_query import render_and_check