Block import improvements

cumulus/zombienet/zombienet-sdk/Cargo.toml

@@ -30,3 +30,4 @@ rstest = { workspace = true }
 
 [features]
 zombie-ci = []
+generate-snapshots = []

cumulus/zombienet/zombienet-sdk/tests/zombie_ci/full_node_warp_sync/README.md

@@ -0,0 +1,50 @@
+# Full Node Warp Sync Test
+
+Integration test verifying warp sync functionality for relay chain and parachain nodes using Zombienet.
+
+## Updating Test Artifacts
+
+Test maintenance involves updating chain specs and database snapshots after runtime changes to `cumulus-test-runtime`
+or `rococo-local`.
+
+### Using `generate-snapshots.sh` script
+
+Use the automation script for all steps:
+
+```bash
+cd cumulus/zombienet/zombienet-sdk/tests/zombie_ci/full_node_warp_sync
+
+# Run all phases (~24h)
+./generate-snapshots.sh all
+
+# Or run individual phases
+./generate-snapshots.sh build                   # Build binaries
+./generate-snapshots.sh chainspec-parachain     # Generate parachain spec
+./generate-snapshots.sh chainspec-relaychain    # Generate relaychain spec
+./generate-snapshots.sh snapshots-generate      # Run snapshot generation
+./generate-snapshots.sh snapshots-archive       # Create snapshot tarballs
+./generate-snapshots.sh snapshots-test-local    # Validate with local snapshots
+```
+
+Once the snapshots are validated they are ready to upload to google storage.
+
+## Testing local snapshots
+
+```bash
+DB_SNAPSHOT_RELAYCHAIN_OVERRIDE=$(realpath relaychain-db.tgz) \
+DB_SNAPSHOT_PARACHAIN_OVERRIDE=$(realpath parachain-db.tgz) \
+TARGET_DIR=$(dirname "$(cargo locate-project --workspace --message-format plain)")/target/release \
+PATH="$TARGET_DIR:$PATH" \
+RUST_LOG=info,zombienet_orchestrator=debug \
+ZOMBIE_PROVIDER=native \
+cargo nextest run --release \
+    -p cumulus-zombienet-sdk-tests \
+    --features zombie-ci \
+    --no-capture \
+    -- full_node_warp_sync
+```
+
+Exactly these steps are performed with command:
+```bash
+./generate-snapshots.sh snapshots-test-local
+```