Fix the renamed relations code

.changes/unreleased/Under the Hood-20240227-004659.yaml

@@ -0,0 +1,6 @@
+kind: Under the Hood
+body: Add unit test for transaction semantics.
+time: 2024-02-27T00:46:59.188231-08:00
+custom:
+  Author: versusfacit
+  Issue: "1123"

dbt/adapters/bigquery/relation.py

@@ -1,4 +1,4 @@
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from typing import FrozenSet, Optional, TypeVar
 
 from itertools import chain, islice
@@ -23,9 +23,22 @@
 class BigQueryRelation(BaseRelation):
     quote_character: str = "`"
     location: Optional[str] = None
-    renameable_relations: FrozenSet[RelationType] = frozenset({RelationType.Table})
-    replaceable_relations: FrozenSet[RelationType] = frozenset(
-        {RelationType.Table, RelationType.View}
+
+    renameable_relations: FrozenSet[RelationType] = field(
+        default_factory=lambda: frozenset(
+            {
+                RelationType.Table,
+            }
+        )
+    )
+
+    replaceable_relations: FrozenSet[RelationType] = field(
+        default_factory=lambda: frozenset(
+            {
+                RelationType.View,
+                RelationType.Table,
+            }
+        )
     )
 
     def matches(

tests/unit/test_renamed_relations.py

@@ -0,0 +1,16 @@
+from dbt.adapters.bigquery.relation import BigQueryRelation
+from dbt.adapters.contracts.relation import RelationType
+
+
+def test_renameable_relation():
+    relation = BigQueryRelation.create(
+        database="my_db",
+        schema="my_schema",
+        identifier="my_table",
+        type=RelationType.Table,
+    )
+    assert relation.renameable_relations == frozenset(
+        {
+            RelationType.Table,
+        }
+    )