fix(scenario): In solo-node-bootstrap scenario, make the initial time match the first block time

This is required so that the block prevalidation logic doesn't reject
the block for being outside of the slot time window.

Author: tizoc

node/testing/src/scenarios/solo_node/bootstrap.rs

@@ -1,6 +1,7 @@
 use std::time::Duration;
 
 use node::transition_frontier::sync::TransitionFrontierSyncState;
+use openmina_core::constants::constraint_constants;
 use redux::Instant;
 
 use crate::{
@@ -19,6 +20,24 @@ use crate::{
 #[derive(documented::Documented, Default, Clone, Copy)]
 pub struct SoloNodeBootstrap;
 
+// TODO(tizoc): this is ugly, do a cleaner conversion or figure out a better way.
+// This test will fail if we don't start with this as the initial time because
+// the time validation for the first block will reject it.
+fn first_block_slot_timestamp_nanos(config: &RustNodeTestingConfig) -> u64 {
+    let first_block_global_slot = 46891; // Update if replay changes
+    let protocol_constants = config.genesis.protocol_constants().unwrap();
+    let genesis_timestamp_ms = protocol_constants.genesis_state_timestamp.0.as_u64();
+    let milliseconds_per_slot = constraint_constants().block_window_duration_ms;
+    let first_block_global_slot_delta_ms = first_block_global_slot * milliseconds_per_slot;
+
+    // Convert to nanos
+    genesis_timestamp_ms
+        .checked_add(first_block_global_slot_delta_ms)
+        .unwrap()
+        .checked_mul(1_000_000)
+        .unwrap()
+}
+
 impl SoloNodeBootstrap {
     pub async fn run(self, mut runner: ClusterRunner<'_>) {
         use self::TransitionFrontierSyncState::*;
@@ -27,10 +46,12 @@ impl SoloNodeBootstrap {
 
         let replayer = hosts::replayer();
 
-        let node_id = runner.add_rust_node(
-            RustNodeTestingConfig::devnet_default()
-                .initial_peers(vec![ListenerNode::Custom(replayer)]),
-        );
+        let mut config = RustNodeTestingConfig::devnet_default();
+
+        config.initial_time = redux::Timestamp::new(first_block_slot_timestamp_nanos(&config));
+
+        let node_id =
+            runner.add_rust_node(config.initial_peers(vec![ListenerNode::Custom(replayer)]));
         eprintln!("launch Openmina node with default configuration, id: {node_id}");
 
         let mut timeout = TIMEOUT;