fix: mypy

Author: GarrettWu

tests/system/small/bigquery/test_datetime.py

@@ -19,7 +19,7 @@
 import pytest
 
 from bigframes import bigquery
-import bigframes.testing
+import bigframes.testing.utils
 
 _TIMESTAMP_DTYPE = pd.ArrowDtype(pa.timestamp("us", tz="UTC"))
 

tests/system/small/bigquery/test_geo.py

@@ -32,7 +32,7 @@
 import bigframes.bigquery as bbq
 import bigframes.geopandas
 import bigframes.session
-import bigframes.testing
+import bigframes.testing.utils
 
 
 def test_geo_st_area(session: bigframes.session.Session):

tests/system/small/bigquery/test_sql.py

@@ -17,7 +17,7 @@
 import bigframes.bigquery as bbq
 import bigframes.dtypes as dtypes
 import bigframes.pandas as bpd
-import bigframes.testing
+import bigframes.testing.utils
 
 
 def test_sql_scalar_for_all_scalar_types(scalars_df_null_index):

tests/system/small/bigquery/test_struct.py

@@ -16,7 +16,7 @@
 
 import bigframes.bigquery as bbq
 import bigframes.series as series
-import bigframes.testing
+import bigframes.testing.utils
 
 
 @pytest.mark.parametrize(

tests/system/small/core/test_reshape.py

@@ -17,7 +17,7 @@
 
 from bigframes import session
 from bigframes.core.reshape import merge
-import bigframes.testing
+import bigframes.testing.utils
 
 
 @pytest.mark.parametrize(

tests/system/small/ml/test_metrics.py

@@ -20,7 +20,7 @@
 
 import bigframes
 from bigframes.ml import metrics
-import bigframes.testing
+import bigframes.testing.utils
 
 
 def test_r2_score_perfect_fit(session):

tests/system/small/ml/test_utils.py

@@ -16,7 +16,7 @@
 import pytest
 
 import bigframes.ml.utils as utils
-import bigframes.testing
+import bigframes.testing.utils
 
 _DATA_FRAME = pd.DataFrame({"column": [1, 2, 3]})
 _SERIES = pd.Series([1, 2, 3], name="column")

tests/system/small/operations/test_dates.py

@@ -20,7 +20,7 @@
 import pytest
 
 from bigframes import dtypes
-import bigframes.testing
+import bigframes.testing.utils
 
 
 def test_date_diff_between_series(session):

tests/system/small/operations/test_timedeltas.py

@@ -23,7 +23,7 @@
 import pytest
 
 from bigframes import dtypes
-import bigframes.testing
+import bigframes.testing.utils
 
 # Some methods/features used by this test don't exist in pandas 1.x
 pytest.importorskip("pandas", minversion="2.0.0")

tests/system/small/test_groupby.py

@@ -17,7 +17,7 @@
 import pytest
 
 import bigframes.pandas as bpd
-import bigframes.testing
+import bigframes.testing.utils
 
 # =================
 # DataFrame.groupby