move data counting to the BufferUsage

Signed-off-by: Vitalii Parfonov <vparfono@redhat.com>

Author: vparfonov

lib/vector-buffers/src/buffer_usage_data.rs

@@ -469,9 +469,6 @@ mod tests {
             .lock()
             .unwrap_or_else(std::sync::PoisonError::into_inner);
 
-        // Note: In the new architecture, the reporting loop runs in a single thread,
-        // so we test the mathematical correctness of sequential updates instead
-
         let num_increments = 10000;
         let mut updates = Vec::new();
 
@@ -487,7 +484,6 @@ mod tests {
 
     #[test]
     fn test_large_values_stay_within_bounds() {
-        // Test that our gauge simulation handles large values correctly
         let large_value = F64_SAFE_INT_MAX / 2;
         let (events, bytes) =
             simulate_gauge_updates("test_buffer", 3, &[(large_value, large_value)]);
@@ -498,15 +494,10 @@ mod tests {
 
     #[test]
     fn test_gauge_state_behavior_comprehensive() {
-        // Test comprehensive gauge state behavior that mimics the original tests
-
-        // Test basic increment
         assert_gauge_simulation("buffer_alpha", 0, &[(100, 2048), (200, 1024)], 300, 3072);
 
-        // Test clamping to prevent negatives
         assert_gauge_simulation("buffer_beta", 1, &[(100, 1024), (-200, -4096)], 0, 0);
 
-        // Test mixed operations
         assert_gauge_simulation(
             "buffer_gamma",
             0,
@@ -515,7 +506,6 @@ mod tests {
             1000,
         );
 
-        // Test multiple buffer IDs work independently (conceptually)
         assert_gauge_simulation("buffer_delta", 0, &[(10, 100), (5, 50)], 15, 150);
         assert_gauge_simulation("buffer_epsilon", 0, &[(20, 200)], 20, 200);
     }