Test tablock and query options interaction

tests/functional/adapter/mssql/test_interaction_tablock_query_options.py

@@ -0,0 +1,65 @@
+"""Interaction coverage for #613 (query_options) + #640 (TABLOCK on contract INSERT).
+
+Each feature is exercised by its own test suite in isolation. This file verifies
+that when both are present, a contract-enforced table model with query_options
+emits both `WITH (TABLOCK)` (the INSERT target hint) and the `OPTION (...)`
+query hint without either path interfering with the other.
+
+The test lives on a dedicated branch that merges both feature branches because
+neither individual branch can exercise the combined output: #640 alone ignores
+query_options config, and #613 alone uses the non-contract `SELECT * INTO`
+path which has no TABLOCK to emit.
+"""
+
+import os
+
+import pytest
+
+from dbt.tests.util import run_dbt
+
+model_sql = """
+{{ config(materialized='table', query_options={'MAXDOP': 1}) }}
+select 1 as id
+"""
+
+model_yml = """
+version: 2
+models:
+  - name: contract_with_options
+    config:
+      contract:
+        enforced: true
+    columns:
+      - name: id
+        data_type: int
+"""
+
+
+class TestContractTableWithQueryOptions:
+    @pytest.fixture(scope="class")
+    def models(self):
+        return {
+            "contract_with_options.sql": model_sql,
+            "schema.yml": model_yml,
+        }
+
+    def test_both_hints_in_compiled_sql(self, project):
+        results = run_dbt(["run"])
+        assert len(results) == 1
+        assert results[0].status == "success"
+
+        target_dir = os.path.join(project.project_root, "target", "run")
+        for root, _dirs, files in os.walk(target_dir):
+            if "contract_with_options.sql" in files:
+                with open(os.path.join(root, "contract_with_options.sql"), "r") as f:
+                    sql = f.read()
+                break
+        else:
+            raise AssertionError("Could not find compiled contract_with_options.sql")
+
+        # TABLOCK is the INSERT target hint (#640).
+        assert "WITH (TABLOCK)" in sql
+        # MAXDOP comes from query_options (#613).
+        assert "MAXDOP 1" in sql
+        # The default LABEL is always present.
+        assert "LABEL =" in sql