metrics have been added

1 files changed, 33 insertions, 0 deletions

diff --git a/library/go/core/metrics/mock/int_gauge.go b/library/go/core/metrics/mock/int_gauge.go
new file mode 100644
index 0000000000..8955107da9
--- /dev/null
+++ b/library/go/core/metrics/mock/int_gauge.go
@@ -0,0 +1,33 @@
+package mock
+
+import (
+	"github.com/ydb-platform/ydb/library/go/core/metrics"
+	"go.uber.org/atomic"
+)
+
+var _ metrics.IntGauge = (*IntGauge)(nil)
+
+// IntGauge tracks single int64 value.
+type IntGauge struct {
+	Name  string
+	Tags  map[string]string
+	Value *atomic.Int64
+}
+
+func (g *IntGauge) Set(value int64) {
+	g.Value.Store(value)
+}
+
+func (g *IntGauge) Add(value int64) {
+	g.Value.Add(value)
+}
+
+var _ metrics.FuncIntGauge = (*FuncIntGauge)(nil)
+
+type FuncIntGauge struct {
+	function func() int64
+}
+
+func (g FuncIntGauge) Function() func() int64 {
+	return g.function
+}