misc: Do not perform sanity check on test_only runs (#635)

zero/src/bin/leader/client.rs

@@ -38,24 +38,29 @@ pub(crate) async fn client_main(
 ) -> Result<()> {
     use futures::StreamExt;
 
+    let test_only = leader_config.prover_config.test_only;
+
     let cached_provider = Arc::new(zero::provider::CachedProvider::new(
         build_http_retry_provider(
             rpc_params.rpc_url.clone(),
             rpc_params.backoff,
             rpc_params.max_retries,
         )?,
     ));
-    check_previous_proof_and_checkpoint(
-        leader_config.checkpoint_block_number,
-        &leader_config.previous_proof,
-        block_interval.get_start_block()?,
-    )?;
+
+    if !test_only {
+        // For actual proof runs, perform a sanity check on the provided inputs.
+        check_previous_proof_and_checkpoint(
+            leader_config.checkpoint_block_number,
+            &leader_config.previous_proof,
+            block_interval.get_start_block()?,
+        )?;
+    }
 
     // Create a channel for block prover input and use it to send prover input to
     // the proving task. The second element of the tuple is a flag indicating
     // whether the block is the last one in the interval.
     let (block_tx, block_rx) = mpsc::channel::<(BlockProverInput, bool)>(zero::BLOCK_CHANNEL_SIZE);
-    let test_only = leader_config.prover_config.test_only;
 
     // Run proving task
     let runtime_ = runtime.clone();