fix metricbase_test bugs

Former-commit-id: 720470f165ab92744b6c4c1caa73092b3b27103e

cpp/src/scheduler/ResourceMgr.cpp

@@ -60,7 +60,7 @@ ResourceMgr::Connect(const std::string &name1, const std::string &name2, Connect
 
 void
 ResourceMgr::Connect(ResourceWPtr &res1, ResourceWPtr &res2, Connection &connection) {
-    if (auto observe_a = res1.loc   k()) {
+    if (auto observe_a = res1.lock()) {
         if (auto observe_b = res2.lock()) {
             observe_a->AddNeighbour(std::static_pointer_cast<Node>(observe_b), connection);
             observe_b->AddNeighbour(std::static_pointer_cast<Node>(observe_a), connection);

cpp/unittest/metrics/metricbase_test.cpp

@@ -22,7 +22,7 @@ TEST(MetricbaseTest, METRICBASE_TEST){
     instance.IndexFileSizeHistogramObserve(1.0);
     instance.BuildIndexDurationSecondsHistogramObserve(1.0);
     instance.CpuCacheUsageGaugeSet(1.0);
-    instance.GpuCacheUsageGaugeSet(1.0);
+    instance.GpuCacheUsageGaugeSet();
     instance.MetaAccessTotalIncrement();
     instance.MetaAccessDurationSecondsHistogramObserve(1.0);
     instance.FaissDiskLoadDurationSecondsHistogramObserve(1.0);

cpp/unittest/metrics/prometheus_test.cpp

@@ -23,7 +23,7 @@ TEST(PrometheusTest, PROMETHEUS_TEST){
     instance.IndexFileSizeHistogramObserve(1.0);
     instance.BuildIndexDurationSecondsHistogramObserve(1.0);
     instance.CpuCacheUsageGaugeSet(1.0);
-    instance.GpuCacheUsageGaugeSet(1.0);
+    instance.GpuCacheUsageGaugeSet();
     instance.MetaAccessTotalIncrement();
     instance.MetaAccessDurationSecondsHistogramObserve(1.0);
     instance.FaissDiskLoadDurationSecondsHistogramObserve(1.0);