update test case

Author: YangSen-qn

QiniuSDKTests/QNDnsPrefetcherTest.m

@@ -78,6 +78,7 @@ - (void)tearDown {
 
 - (void)testLocalLoad {
 
+    kQNGlobalConfiguration.dns = [[CustomDns alloc] init];
     [kQNTransactionManager addDnsLocalLoadTransaction];
 
     AGWW_WAIT_WHILE([kQNDnsPrefetch getInetAddressByHost:kCustomHost] == nil, 60 * 5);

QiniuSDKTests/QNTestConfig.h

@@ -17,5 +17,5 @@ static NSString *const token_na0 = @"dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:sw
 // 东南亚上传凭证
 static NSString *const token_as0 = @"dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:_QQcTsikr_HDK1gugztImhkIebI=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZS1hczAtc3BhY2UiLCJkZWFkbGluZSI6MTY2MjcxMDk4MiwgInJldHVybkJvZHkiOiJ7XCJjYWxsYmFja1VybFwiOlwiaHR0cDpcL1wvY2FsbGJhY2suZGV2LnFpbml1LmlvXCIsIFwiZm9vXCI6JCh4OmZvbyksIFwiYmFyXCI6JCh4OmJhciksIFwibWltZVR5cGVcIjokKG1pbWVUeXBlKSwgXCJoYXNoXCI6JChldGFnKSwgXCJrZXlcIjokKGtleSksIFwiZm5hbWVcIjokKGZuYW1lKX0ifQ==";
 // 雾存储华东一区
-static NSString *const invalidBucketToken = @"dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:MxUCcdbRDl2V67pA6g_whNXejEk=:eyJzY29wZSI6InpvbmVfaW52YWxpZCIsImRlYWRsaW5lIjoxNjU3MzUzNzkxLCAicmV0dXJuQm9keSI6IntcImZvb1wiOiQoeDpmb28pLCBcImJhclwiOiQoeDpiYXIpLCBcIm1pbWVUeXBlXCI6JChtaW1lVHlwZSksIFwiaGFzaFwiOiQoZXRhZyksIFwia2V5XCI6JChrZXkpLCBcImZuYW1lXCI6JChmbmFtZSl9In0=";
+static NSString *const invalidBucketToken = @"dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:xjyN4lS594zwaI1b7UXtZic887s=:eyJzY29wZSI6InpvbmVfaW52YWxpZCIsImRlYWRsaW5lIjoxNjYyOTQ4NTU2LCAicmV0dXJuQm9keSI6IntcImNhbGxiYWNrVXJsXCI6XCJodHRwOlwvXC9jYWxsYmFjay5kZXYucWluaXUuaW9cIiwgXCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";