diff --git a/lrucache/cache_test.go b/lrucache/cache_test.go
index c0dddb6..84b377e 100644
--- a/lrucache/cache_test.go
+++ b/lrucache/cache_test.go
@@ -132,6 +132,11 @@ func TestCache_eviction(t *testing.T) {
 	}
 }
 
+func TestCache_GCPercent(t *testing.T) {
+	var p = debug.SetGCPercent(100)
+	require.Equal(t, p, 100)
+}
+
 func BenchmarkCache_Set(b *testing.B) {
 	for _, tc := range []struct {
 		name string