updates to ensure coverage of external_config.py

Author: chalmerlowe

google/cloud/bigquery/external_config.py

@@ -905,10 +905,9 @@ def schema(self, value):
 
     @property
     def time_zone(self) -> Optional[str]:
-        """Optional[str]: Default time zone that will apply when parsing
-        timestamp values that have no specific time zone.
-
-        (Valid for CSV and NEWLINE_DELIMITED_JSON)
+        """Optional[str]: Time zone used when parsing timestamp values that do not
+        have specific time zone information (e.g. 2024-04-20 12:34:56). The expected
+        format is an IANA timezone string (e.g. America/Los_Angeles).
 
         See:
         https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#ExternalDataConfiguration.FIELDS.time_zone

google/cloud/bigquery/job/load.py

@@ -550,10 +550,9 @@ def source_format(self, value):
         self._set_sub_prop("sourceFormat", value)
 
     @property
-    def time_zone(self):
+    def time_zone(self) -> Optional[str]:
         """Optional[str]: Default time zone that will apply when parsing timestamp
-        values that have no specific time zone. This option is valid for CSV and
-        JSON sources.
+        values that have no specific time zone.
 
         See:
         https://cloud.google.com/bigquery/docs/reference/rest/v2/Job#JobConfigurationLoad.FIELDS.time_zone

tests/unit/test_external_config.py

@@ -144,6 +144,20 @@ def test_schema_empty(self):
         want = {"sourceFormat": "", "schema": {"fields": []}}
         self.assertEqual(got, want)
 
+    def test_source_column_match_None(self):
+        ec = external_config.ExternalConfig("")
+        ec.source_column_match = None
+        expected = None
+        result = ec.source_column_match
+        self.assertEqual(expected, result)
+
+    def test_source_column_match_valid_input(self):
+        ec = external_config.ExternalConfig("")
+        ec.source_column_match = SourceColumnMatch.NAME
+        expected = "NAME"
+        result = ec.source_column_match
+        self.assertEqual(expected, result)
+
     def _verify_base(self, ec):
         self.assertEqual(ec.autodetect, True)
         self.assertEqual(ec.compression, "compression")