make json string in NamingServiceTest.discovery_parse_function more readable

test/brpc_naming_service_unittest.cpp

@@ -424,7 +424,70 @@ TEST(NamingServiceTest, discovery_parse_function) {
     std::vector<brpc::ServerNode> servers;
     brpc::policy::DiscoveryNamingService dcns;
     butil::IOBuf buf;
-    buf.append(R"({"code":0,"message":"0","ttl":1,"data":{"admin.test":{"instances":[{"region":"","zone":"sh001","env":"uat","appid":"admin.test","treeid":0,"hostname":"host123","http":"","rpc":"","version":"123","metadata":{},"addrs":["http://127.0.0.1:8999", "gorpc://127.0.1.1:9000"],"status":1,"reg_timestamp":1539001034551496412,"up_timestamp":1539001034551496412,"renew_timestamp":1539001034551496412,"dirty_timestamp":1539001034551496412,"latest_timestamp":1539001034551496412}],"zone_instances":{"sh001":[{"region":"","zone":"sh001","env":"uat","appid":"admin.test","treeid":0,"hostname":"host123","http":"","rpc":"","version":"123","metadata":{},"addrs":["http://127.0.0.1:8999", "gorpc://127.0.1.1:9000"],"status":1,"reg_timestamp":1539001034551496412,"up_timestamp":1539001034551496412,"renew_timestamp":1539001034551496412,"dirty_timestamp":1539001034551496412,"latest_timestamp":1539001034551496412}]},"latest_timestamp":1539001034551496412,"latest_timestamp_str":"1539001034"}}})");
+    buf.append(R"({
+    "code":0,
+    "message":"0",
+    "ttl":1,
+    "data":{
+        "admin.test":{
+            "instances":[
+                {
+                    "region":"",
+                    "zone":"sh001",
+                    "env":"uat",
+                    "appid":"admin.test",
+                    "treeid":0,
+                    "hostname":"host123",
+                    "http":"",
+                    "rpc":"",
+                    "version":"123",
+                    "metadata":{
+
+                    },
+                    "addrs":[
+                        "http://127.0.0.1:8999",
+                        "gorpc://127.0.1.1:9000"
+                    ],
+                    "status":1,
+                    "reg_timestamp":1539001034551496412,
+                    "up_timestamp":1539001034551496412,
+                    "renew_timestamp":1539001034551496412,
+                    "dirty_timestamp":1539001034551496412,
+                    "latest_timestamp":1539001034551496412
+                }
+            ],
+            "zone_instances":{
+                "sh001":[
+                    {
+                        "region":"",
+                        "zone":"sh001",
+                        "env":"uat",
+                        "appid":"admin.test",
+                        "treeid":0,
+                        "hostname":"host123",
+                        "http":"",
+                        "rpc":"",
+                        "version":"123",
+                        "metadata":{
+
+                        },
+                        "addrs":[
+                            "http://127.0.0.1:8999",
+                            "gorpc://127.0.1.1:9000"
+                        ],
+                        "status":1,
+                        "reg_timestamp":1539001034551496412,
+                        "up_timestamp":1539001034551496412,
+                        "renew_timestamp":1539001034551496412,
+                        "dirty_timestamp":1539001034551496412,
+                        "latest_timestamp":1539001034551496412
+                    }
+                ]
+            },
+            "latest_timestamp":1539001034551496412,
+            "latest_timestamp_str":"1539001034"
+        }
+    }})");
     ASSERT_EQ(0, dcns.parse_fetchs_result(buf, "admin.test", &servers));
     ASSERT_EQ((size_t)2, servers.size());