Report unhappy blocks in happy path test

tests/Cargo.toml

@@ -28,7 +28,9 @@ waku-bindings = { version = "0.1.1", optional = true }
 reqwest = { version = "0.11", features = ["json"] }
 nomos-libp2p = { path = "../nomos-libp2p" }
 tempfile = "3.6"
+serde = { version = "1", features = ["derive"] }
 serde_yaml = "0.9"
+serde_json = "1"
 tokio = "1"
 futures = "0.3"
 async-trait = "0.1"

tests/src/tests/happy.rs

@@ -1,4 +1,4 @@
-use consensus_engine::View;
+use consensus_engine::{Qc, View};
 use fraction::{Fraction, One};
 use futures::stream::{self, StreamExt};
 use std::collections::HashSet;
@@ -7,6 +7,13 @@ use tests::{MixNode, Node, NomosNode, SpawnConfig};
 
 const TARGET_VIEW: View = View::new(20);
 
+#[derive(serde::Serialize)]
+struct Info {
+    node_id: String,
+    block_id: String,
+    view: View,
+}
+
 async fn happy_test(nodes: Vec<NomosNode>) {
     let timeout = std::time::Duration::from_secs(20);
     let timeout = tokio::time::sleep(timeout);
@@ -43,6 +50,27 @@ async fn happy_test(nodes: Vec<NomosNode>) {
                 .unwrap()
         })
         .collect::<HashSet<_>>();
+
+    // try to see if we have invalid blocks
+    let invalid_blocks = infos
+        .iter()
+        .flat_map(|i| {
+            i.safe_blocks.values().filter_map(|b| match &b.parent_qc {
+                Qc::Standard(_) => None,
+                Qc::Aggregated(_) => Some(Info {
+                    node_id: i.id.to_string(),
+                    block_id: b.id.to_string(),
+                    view: b.view,
+                }),
+            })
+        })
+        .collect::<Vec<_>>();
+
+    assert!(
+        invalid_blocks.is_empty(),
+        "{}",
+        serde_json::to_string_pretty(&invalid_blocks).unwrap()
+    );
     assert_eq!(blocks.len(), 1);
 }