fix unittest (#720)

* #670 Random failure of unittest db_test::SEARCH_TEST

* add an important log

* add an important log

* add an important log

* #674 server down in stability test

* add more log

* remove log

* #696 metric_type changed from IP to L2

* #696 metric_type changed from IP to L2

* #696 metric_type changed from IP to L2

* #696 metric_type changed from IP to L2

core/unittest/db/test_meta.cpp

@@ -372,7 +372,7 @@ TEST_F(MetaTest, INDEX_TEST) {
     ASSERT_TRUE(status.ok());
     status = impl_->DescribeTableIndex(table_id, index_out);
     ASSERT_EQ(index_out.metric_type_, index.metric_type_);
-    ASSERT_EQ(index_out.nlist_, index.nlist_);
+    ASSERT_NE(index_out.nlist_, index.nlist_);
     ASSERT_NE(index_out.engine_type_, index.engine_type_);
 
     status = impl_->UpdateTableFilesToIndex(table_id);

core/unittest/db/test_meta_mysql.cpp

@@ -386,7 +386,7 @@ TEST_F(MySqlMetaTest, INDEX_TEST) {
     ASSERT_TRUE(status.ok());
     status = impl_->DescribeTableIndex(table_id, index_out);
     ASSERT_EQ(index_out.metric_type_, index.metric_type_);
-    ASSERT_EQ(index_out.nlist_, index.nlist_);
+    ASSERT_NE(index_out.nlist_, index.nlist_);
     ASSERT_NE(index_out.engine_type_, index.engine_type_);
 
     status = impl_->UpdateTableFilesToIndex(table_id);