fix

Signed-off-by: Griffin <prakritimandal611@gmail.com>

internal/safeexpvar/cacheexpvar_test.go

@@ -0,0 +1,23 @@
+package safeexpvar
+
+import (
+	"expvar"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSetExpvarInt(t *testing.T) {
+	// Test with a new variable
+	name := "metrics-test-1"
+	value := int64(42)
+
+	SetExpvarInt(name, value)
+
+	// Retrieve the variable and check its value
+	v := expvar.Get(name)
+	assert.NotNil(t, v, "expected variable %s to be created", name)
+	expInt, ok := v.(*expvar.Int)
+	assert.True(t, ok, "expected variable %s to be of type *expvar.Int", name)
+	assert.Equal(t, value, expInt.Value(), "expected variable %s value to be %d", name, value)
+}