fix(l1): report a block whose receipts are absent instead of answering empty

crates/networking/rpc/eth/block.rs

@@ -453,5 +453,27 @@ pub async fn get_all_block_receipts(
         return Ok(Vec::new());
     }
     let block_hash = header.hash();
-    Ok(storage.get_receipts_for_block(&block_hash).await?)
+    let receipts = storage.get_receipts_for_block(&block_hash).await?;
+    // `get_receipts_for_block` returns a bare Vec, so a block whose receipts are
+    // absent is indistinguishable from a block that genuinely has none. Returning
+    // the empty list would be a wrong answer rather than a reported failure, so
+    // check it against the block's own transaction count. This mirrors the
+    // mismatch check the by-index receipt path already performs.
+    let expected = match storage.get_block_body_by_hash(block_hash).await? {
+        Some(body) => body.transactions.len(),
+        // No body means the block's history is not retained; without it there is
+        // nothing to validate the receipt count against.
+        None => {
+            return Err(RpcErr::Internal(format!(
+                "Body unavailable for block {block_hash:#x}, cannot serve its receipts"
+            )));
+        }
+    };
+    if receipts.len() != expected {
+        return Err(RpcErr::Internal(format!(
+            "Expected {expected} receipts for block {block_hash:#x}, got {}",
+            receipts.len()
+        )));
+    }
+    Ok(receipts)
 }

test/tests/rpc/mod.rs

@@ -6,6 +6,7 @@ mod estimate_gas_tests;
 mod fork_choice_tests;
 mod http_batch_tests;
 mod missing_rpc_methods_tests;
+mod raw_receipts_completeness_tests;
 mod send_raw_transaction_tests;
 mod subscription_manager_tests;
 mod trace_call_tests;

test/tests/rpc/raw_receipts_completeness_tests.rs

@@ -0,0 +1,63 @@
+//! `debug_getRawReceipts` must not present a block's receipts as empty when they
+//! are merely absent.
+//!
+//! `get_receipts_for_block` returns a bare `Vec`, so "this block has no receipts
+//! stored" and "this block had no transactions" are the same value. Handing back
+//! the empty list is a wrong answer rather than a reported failure, and once
+//! history pruning lands (#6673) an absent receipt set becomes a normal
+//! steady-state outcome rather than a corruption signal.
+
+use ethrex_rpc::test_utils::{
+    add_legacy_tx_blocks, call_http, default_context_with_storage, setup_store,
+};
+
+#[tokio::test]
+async fn raw_receipts_reports_a_block_whose_receipts_are_absent() {
+    let store = setup_store().await;
+    // The harness stores blocks and their transactions but no receipts, which is
+    // exactly the shape a pruned block presents: body present, receipts gone.
+    add_legacy_tx_blocks(&store, 1, 1).await;
+    let context = default_context_with_storage(store).await;
+
+    let response = call_http(
+        context,
+        r#"{"jsonrpc":"2.0","method":"debug_getRawReceipts","params":["0x1"],"id":1}"#.to_string(),
+    )
+    .await;
+
+    assert!(
+        response.get("error").is_some(),
+        "a block with 1 transaction and no stored receipts must report a failure \
+         rather than returning an empty list; got {response}"
+    );
+    assert_ne!(
+        response["result"].as_array().map(|a| a.len()),
+        Some(0),
+        "must not answer with an empty receipt list: {response}"
+    );
+}
+
+#[tokio::test]
+async fn raw_receipts_still_serves_genesis_as_empty() {
+    let store = setup_store().await;
+    add_legacy_tx_blocks(&store, 1, 1).await;
+    let context = default_context_with_storage(store).await;
+
+    // Genesis legitimately has no receipts and is short-circuited before the
+    // completeness check, so it must keep answering with an empty list.
+    let response = call_http(
+        context,
+        r#"{"jsonrpc":"2.0","method":"debug_getRawReceipts","params":["0x0"],"id":1}"#.to_string(),
+    )
+    .await;
+
+    assert!(
+        response.get("error").is_none(),
+        "genesis must not be reported as a failure: {response}"
+    );
+    assert_eq!(
+        response["result"].as_array().map(|a| a.len()),
+        Some(0),
+        "genesis has no receipts: {response}"
+    );
+}