separate test

tests/functional/docs/test_doc_blocks_backcompat.py

@@ -0,0 +1,23 @@
+import pytest
+
+from dbt.tests.util import run_dbt
+
+schema_yml = """
+models:
+  - name: test_model
+    columns:
+      - name: test
+        doc_blocks: 2
+"""
+
+
+class TestDocBlocksBackCompat:
+    @pytest.fixture(scope="class")
+    def models(self):
+        return {
+            "test_model.sql": "select 1 as fun",
+            "schema.yml": schema_yml,
+        }
+
+    def test_doc_blocks_back_compat(self, project):
+        run_dbt(["parse"])