Add integration test

Author: pufit

tests/integration/test_enable_user_name_access_type/__init__.py

@@ -0,0 +1,5 @@
+<clickhouse>
+    <access_control_improvements>
+        <enable_user_name_access_type>0</enable_user_name_access_type>
+    </access_control_improvements>
+</clickhouse>

tests/integration/test_enable_user_name_access_type/configs/access_control_settings.xml

@@ -0,0 +1,28 @@
+from helpers.cluster import ClickHouseCluster
+
+
+def test_startup_scripts():
+    cluster = ClickHouseCluster(__file__)
+
+    node = cluster.add_instance(
+        "node",
+        main_configs=[
+            "configs/access_control_settings.xml",
+        ],
+        macros={"replica": "node", "shard": "node"},
+        with_zookeeper=True,
+    )
+
+    try:
+        cluster.start()
+        node.query("CREATE USER foobar")
+        node.query("GRANT CREATE USER ON * TO foobar")
+        assert (
+                node.query(
+                    "SHOW GRANTS FOR foobar"
+                )
+                == "GRANT CREATE USER ON *.* TO foobar\n"
+        )
+        node.query("DROP USER foobar")
+    finally:
+        cluster.shutdown()