tests(bigframes): re-enable some tests blocking the doctest (#16806)

Fixes internal tests 506201379🦕

Author: chelsea-lin

packages/bigframes/bigframes/bigquery/_operations/struct.py

@@ -41,11 +41,10 @@ def struct(value: dataframe.DataFrame) -> series.Series:
 
         >>> srs = series.Series([{"version": 1, "project": "pandas"}, {"version": 2, "project": "numpy"},])
         >>> df = srs.struct.explode()
-        >>> df = df[["project", "version"]]  # set the column order to ensure stable output for doctest
         >>> bbq.struct(df)
-        0    {'project': 'pandas', 'version': 1}
-        1     {'project': 'numpy', 'version': 2}
-        dtype: struct<project: string, version: int64>[pyarrow]
+        0    {'version': 1, 'project': 'pandas'}
+        1     {'version': 2, 'project': 'numpy'}
+        dtype: struct<version: int64, project: string>[pyarrow]
 
         Args:
             value (bigframes.dataframe.DataFrame):

packages/bigframes/tests/system/small/bigquery/test_json.py

@@ -398,8 +398,8 @@ def test_to_json_from_int():
 def test_to_json_from_struct():
     s = bpd.Series(
         [
-            {"project": "pandas", "version": 1},
-            {"project": "numpy", "version": 2},
+            {"version": 1, "project": "pandas"},
+            {"version": 2, "project": "numpy"},
         ]
     )
     assert dtypes.is_struct_like(s.dtype)
@@ -410,9 +410,7 @@ def test_to_json_from_struct():
         dtype=dtypes.JSON_DTYPE,
     )
 
-    actual_json = [json.loads(x) for x in actual.to_pandas()]
-    expected_json = [json.loads(x) for x in expected.to_pandas()]
-    assert actual_json == expected_json
+    pd.testing.assert_series_equal(actual.to_pandas(), expected.to_pandas())
 
 
 def test_to_json_string_from_int():
@@ -425,8 +423,8 @@ def test_to_json_string_from_int():
 def test_to_json_string_from_struct():
     s = bpd.Series(
         [
-            {"project": "pandas", "version": 1},
-            {"project": "numpy", "version": 2},
+            {"version": 1, "project": "pandas"},
+            {"version": 2, "project": "numpy"},
         ]
     )
     assert dtypes.is_struct_like(s.dtype)
@@ -437,9 +435,7 @@ def test_to_json_string_from_struct():
         dtype=dtypes.STRING_DTYPE,
     )
 
-    actual_json = [json.loads(x) for x in actual.to_pandas()]
-    expected_json = [json.loads(x) for x in expected.to_pandas()]
-    assert actual_json == expected_json
+    pd.testing.assert_series_equal(actual.to_pandas(), expected.to_pandas())
 
 
 def test_json_keys():

packages/bigframes/tests/system/small/test_series.py

@@ -1288,7 +1288,7 @@ def test_divmods_scalars(scalars_dfs, col_x, other, method):
 
     if bf_mod_result.dtype == pd.Int64Dtype():
         bigframes.testing.utils.assert_series_equal(
-            pd_mod_result, bf_mod_result.to_pandas()
+            pd_div_result, bf_div_result.to_pandas(), check_dtype=False
         )
     else:
         bigframes.testing.utils.assert_series_equal(