batch: Add client-side validation for the table parameter in `toBig…

…Query`.

PiperOrigin-RevId: 683193677

python/ee/batch.py

@@ -832,6 +832,16 @@ def toBigQuery(
       Returns:
         An unstarted Task that exports the table.
       """
+      if table:
+        if (
+            not isinstance(table, str)
+            or re.fullmatch(r'.+\..+\..+', table) is None
+        ):
+          raise ee_exception.EEException(
+              'The BigQuery table reference must be a string of the form'
+              ' "project_id.dataset_id.table_id".'
+          )
+
       config = {
           'description': description,
           'table': table,

python/ee/tests/batch_test.py

@@ -1433,6 +1433,29 @@ def testExportTableToBigQueryAllParams(self):
             task.config,
         )
 
+  def testExportTableToBigQueryBadTableName(self):
+    """Verifies a bad table name throws an exception."""
+    with apitestcase.UsingCloudApi():
+      with self.assertRaisesRegex(
+          ee.EEException,
+          'The BigQuery table reference must be a string of the form.*',
+      ):
+        ee.batch.Export.table.toBigQuery(
+            collection=ee.FeatureCollection('foo'),
+            table=['array.instead.of.string'],
+            description='foo',
+        )
+
+      with self.assertRaisesRegex(
+          ee.EEException,
+          'The BigQuery table reference must be a string of the form.*',
+      ):
+        ee.batch.Export.table.toBigQuery(
+            collection=ee.FeatureCollection('foo'),
+            table='not.the-correct-format',
+            description='foo',
+        )
+
   def testExportVideoCloudApi(self):
     """Verifies the task created by Export.video()."""
     with apitestcase.UsingCloudApi():