feat: support resource_tags for table (#2093)

* feat: support resource_tags for table

* fix: system test for resource tags

* fix: typo

* fix: unit test

* Update tests/unit/test_client.py

* Update google/cloud/bigquery/table.py

* Update google/cloud/bigquery/table.py

* Update google/cloud/bigquery/table.py

* fix: append random string suffix to resource tags to prevent test conflicts

* Update google/cloud/bigquery/table.py

---------

Co-authored-by: Lingqing Gan <lingqing.gan@gmail.com>

Author: hrkh

google/cloud/bigquery/table.py

@@ -409,6 +409,7 @@ class Table(_TableBase):
         "require_partition_filter": "requirePartitionFilter",
         "table_constraints": "tableConstraints",
         "max_staleness": "maxStaleness",
+        "resource_tags": "resourceTags",
         "external_catalog_table_options": "externalCatalogTableOptions",
     }
 
@@ -1025,6 +1026,22 @@ def table_constraints(self) -> Optional["TableConstraints"]:
             table_constraints = TableConstraints.from_api_repr(table_constraints)
         return table_constraints
 
+    @property
+    def resource_tags(self):
+        """Dict[str, str]: Resource tags for the table.
+
+        See: https://cloud.google.com/bigquery/docs/reference/rest/v2/tables#Table.FIELDS.resource_tags
+        """
+        return self._properties.setdefault(
+            self._PROPERTY_TO_API_FIELD["resource_tags"], {}
+        )
+
+    @resource_tags.setter
+    def resource_tags(self, value):
+        if not isinstance(value, dict) and value is not None:
+            raise ValueError("resource_tags must be a dict or None")
+        self._properties[self._PROPERTY_TO_API_FIELD["resource_tags"]] = value
+
     @property
     def external_catalog_table_options(
         self,

tests/system/test_client.py

@@ -732,6 +732,16 @@ def test_list_tables(self):
     def test_update_table(self):
         dataset = self.temp_dataset(_make_dataset_id("update_table"))
 
+        # This creates unique tag keys for each of test runnings for different Python versions
+        tag_postfix = "".join(random.choices(string.ascii_letters + string.digits, k=4))
+        tag_1 = f"owner_{tag_postfix}"
+        tag_2 = f"classification_{tag_postfix}"
+        tag_3 = f"env_{tag_postfix}"
+
+        self._create_resource_tag_key_and_values(tag_1, ["Alice", "Bob"])
+        self._create_resource_tag_key_and_values(tag_2, ["public"])
+        self._create_resource_tag_key_and_values(tag_3, ["dev"])
+
         TABLE_NAME = "test_table"
         table_arg = Table(dataset.table(TABLE_NAME), schema=SCHEMA)
         self.assertFalse(_table_exists(table_arg))
@@ -744,24 +754,54 @@ def test_update_table(self):
         table.friendly_name = "Friendly"
         table.description = "Description"
         table.labels = {"priority": "high", "color": "blue"}
+        table.resource_tags = {
+            f"{Config.CLIENT.project}/{tag_1}": "Alice",
+            f"{Config.CLIENT.project}/{tag_3}": "dev",
+        }
 
         table2 = Config.CLIENT.update_table(
-            table, ["friendly_name", "description", "labels"]
+            table, ["friendly_name", "description", "labels", "resource_tags"]
         )
 
         self.assertEqual(table2.friendly_name, "Friendly")
         self.assertEqual(table2.description, "Description")
         self.assertEqual(table2.labels, {"priority": "high", "color": "blue"})
+        self.assertEqual(
+            table2.resource_tags,
+            {
+                f"{Config.CLIENT.project}/{tag_1}": "Alice",
+                f"{Config.CLIENT.project}/{tag_3}": "dev",
+            },
+        )
 
         table2.description = None
         table2.labels = {
             "color": "green",  # change
             "shape": "circle",  # add
             "priority": None,  # delete
         }
-        table3 = Config.CLIENT.update_table(table2, ["description", "labels"])
+        table2.resource_tags = {
+            f"{Config.CLIENT.project}/{tag_1}": "Bob",  # change
+            f"{Config.CLIENT.project}/{tag_2}": "public",  # add
+            f"{Config.CLIENT.project}/{tag_3}": None,  # delete
+        }
+        table3 = Config.CLIENT.update_table(
+            table2, ["description", "labels", "resource_tags"]
+        )
         self.assertIsNone(table3.description)
         self.assertEqual(table3.labels, {"color": "green", "shape": "circle"})
+        self.assertEqual(
+            table3.resource_tags,
+            {
+                f"{Config.CLIENT.project}/{tag_1}": "Bob",
+                f"{Config.CLIENT.project}/{tag_2}": "public",
+            },
+        )
+
+        # Delete resource tag bindings.
+        table3.resource_tags = None
+        table4 = Config.CLIENT.update_table(table3, ["resource_tags"])
+        self.assertEqual(table4.resource_tags, {})
 
         # If we try to update using table2 again, it will fail because the
         # previous update changed the ETag.

tests/unit/test_client.py

@@ -2320,6 +2320,7 @@ def test_update_table(self):
                 "description": description,
                 "friendlyName": title,
                 "labels": {"x": "y"},
+                "resourceTags": {"123456789012/key": "value"},
             }
         )
         schema = [
@@ -2343,7 +2344,8 @@ def test_update_table(self):
         table.description = description
         table.friendly_name = title
         table.labels = {"x": "y"}
-        fields = ["schema", "description", "friendly_name", "labels"]
+        table.resource_tags = {"123456789012/key": "value"}
+        fields = ["schema", "description", "friendly_name", "labels", "resource_tags"]
         with mock.patch(
             "google.cloud.bigquery.opentelemetry_tracing._get_final_span_attributes"
         ) as final_attributes:
@@ -2375,6 +2377,7 @@ def test_update_table(self):
             "description": description,
             "friendlyName": title,
             "labels": {"x": "y"},
+            "resourceTags": {"123456789012/key": "value"},
         }
         conn.api_request.assert_called_once_with(
             method="PATCH", data=sent, path="/" + path, timeout=7.5
@@ -2383,6 +2386,7 @@ def test_update_table(self):
         self.assertEqual(updated_table.friendly_name, table.friendly_name)
         self.assertEqual(updated_table.schema, table.schema)
         self.assertEqual(updated_table.labels, table.labels)
+        self.assertEqual(updated_table.resource_tags, table.resource_tags)
 
         # ETag becomes If-Match header.
         table._properties["etag"] = "etag"

tests/unit/test_table.py

@@ -1481,6 +1481,33 @@ def test_encryption_configuration_setter(self):
         table.encryption_configuration = None
         self.assertIsNone(table.encryption_configuration)
 
+    def test_resource_tags_getter_empty(self):
+        dataset = DatasetReference(self.PROJECT, self.DS_ID)
+        table_ref = dataset.table(self.TABLE_NAME)
+        table = self._make_one(table_ref)
+        self.assertEqual(table.resource_tags, {})
+
+    def test_resource_tags_update_in_place(self):
+        dataset = DatasetReference(self.PROJECT, self.DS_ID)
+        table_ref = dataset.table(self.TABLE_NAME)
+        table = self._make_one(table_ref)
+        table.resource_tags["123456789012/key"] = "value"
+        self.assertEqual(table.resource_tags, {"123456789012/key": "value"})
+
+    def test_resource_tags_setter(self):
+        dataset = DatasetReference(self.PROJECT, self.DS_ID)
+        table_ref = dataset.table(self.TABLE_NAME)
+        table = self._make_one(table_ref)
+        table.resource_tags = {"123456789012/key": "value"}
+        self.assertEqual(table.resource_tags, {"123456789012/key": "value"})
+
+    def test_resource_tags_setter_bad_value(self):
+        dataset = DatasetReference(self.PROJECT, self.DS_ID)
+        table_ref = dataset.table(self.TABLE_NAME)
+        table = self._make_one(table_ref)
+        with self.assertRaises(ValueError):
+            table.resource_tags = 12345
+
     def test___repr__(self):
         from google.cloud.bigquery.table import TableReference