diff --git a/go_exporter/deploy.yaml b/go_exporter/deploy.yaml
index 57db275..4051dec 100644
--- a/go_exporter/deploy.yaml
+++ b/go_exporter/deploy.yaml
@@ -21,7 +21,7 @@ spec:
     spec:
       containers:
       - name: export
-        image: serviceplant/goexp:0.0.30
+        image: serviceplant/goexp:0.0.31
         ports:
           - containerPort: 9040
             name: metrics
diff --git a/go_exporter/main.go b/go_exporter/main.go
index 1325827..b376f8f 100644
--- a/go_exporter/main.go
+++ b/go_exporter/main.go
@@ -37,6 +37,7 @@ func getMetrics(cephConn CephConnection) {
 			result = append(result, x)
 		}
 
+		metrics.total_rbd_requested_size_per_pool.Reset()
 		for _,v := range result {
 			if !v.hasRBD {continue}
 			FillMetrics(v,metrics)
diff --git a/go_exporter/metrics.go b/go_exporter/metrics.go
index d8fb7f1..ab5c0e4 100644
--- a/go_exporter/metrics.go
+++ b/go_exporter/metrics.go
@@ -27,7 +27,6 @@ func InitMetrics() *Metrics {
 
 func FillMetrics(pool Pool,metrics *Metrics) {
 	var totalSizePerPool uint64 = 0	
-	metrics.total_rbd_requested_size_per_pool.Reset()
 
 	logger.Debugf("Processing pool %s",pool.Name)
 	for _,v := range pool.RBDlist {
diff --git a/go_exporter/rbd-exporter b/go_exporter/rbd-exporter
index 835994c..5e942b0 100755
Binary files a/go_exporter/rbd-exporter and b/go_exporter/rbd-exporter differ
diff --git a/testing/go.mod b/testing/go.mod
new file mode 100644
index 0000000..f3d0661
--- /dev/null
+++ b/testing/go.mod
@@ -0,0 +1,3 @@
+module main.go
+
+go 1.25.5
diff --git a/testing/hello_test.go b/testing/hello_test.go
new file mode 100644
index 0000000..c275fcf
--- /dev/null
+++ b/testing/hello_test.go
@@ -0,0 +1,33 @@
+package main
+
+import "testing"
+
+func TestHello(t *testing.T) {
+	t.Run("Say hi to Utii",func(t *testing.T) {
+		got := Hello("Utii","")
+		want := "Hello Utii"
+
+		assertCorrestMsg(t,got,want)
+	})
+
+	t.Run("say 'Hello world' when arg is empty",func(t *testing.T){
+		got := Hello("","")
+		want := "Hello world"
+
+		assertCorrestMsg(t,got,want)
+	})
+
+	t.Run("say 'Hello world' in Russian",func(t *testing.T){
+		got := Hello("Utii","Russian")
+		want := "Привет Utii"
+
+		assertCorrestMsg(t,got,want)
+	})
+}
+
+func assertCorrestMsg(t testing.TB,got, want string) {
+	t.Helper()
+	if got != want {
+		t.Errorf("got %q want %q",got,want)
+	}
+}
diff --git a/testing/main.go b/testing/main.go
new file mode 100644
index 0000000..f6780ac
--- /dev/null
+++ b/testing/main.go
@@ -0,0 +1,18 @@
+package main
+
+import "fmt"
+
+const Prefix  = "Hello "
+
+func Hello(name,language string) string {
+	if name == "" {
+		name = "world"
+	}
+	if language == "Russian" {
+		return "Привет " + name
+	}
+	return Prefix + name
+}
+func main() {
+	fmt.Println(Hello("Utii",""))
+}