Add local drone integration test

ci/test-stable.sh

@@ -28,7 +28,7 @@ for program in programs/native/*; do
 done
 
 # Run integration tests serially
-for test in tests/*.rs wallet/tests/*.rs; do
+for test in tests/*.rs wallet/tests/*.rs drone/tests/*.rs; do
   test=${test##*/} # basename x
   test=${test%.rs} # basename x .rs
   _ cargo test --all --verbose --features="$FEATURES" --test="$test" -- --test-threads=1 --nocapture

drone/tests/local-drone.rs

@@ -0,0 +1,36 @@
+use solana_drone::drone::{request_airdrop_transaction, run_local_drone};
+use solana_sdk::hash::Hash;
+use solana_sdk::signature::{Keypair, KeypairUtil};
+use solana_sdk::system_instruction::SystemInstruction;
+use solana_sdk::system_program;
+use solana_sdk::transaction::Transaction;
+use std::sync::mpsc::channel;
+
+#[test]
+fn test_local_drone() {
+    let keypair = Keypair::new();
+    let to = Keypair::new().pubkey();
+    let tokens = 50;
+    let last_id = Hash::new(&to.as_ref());
+    let expected_instruction = SystemInstruction::CreateAccount {
+        tokens,
+        space: 0,
+        program_id: system_program::id(),
+    };
+    let mut expected_tx = Transaction::new(
+        &keypair,
+        &[to],
+        system_program::id(),
+        &expected_instruction,
+        last_id,
+        0,
+    );
+    expected_tx.sign(&[&keypair], last_id);
+
+    let (sender, receiver) = channel();
+    run_local_drone(keypair, sender);
+    let drone_addr = receiver.recv().unwrap();
+
+    let result = request_airdrop_transaction(&drone_addr, &to, tokens, last_id);
+    assert_eq!(expected_tx, result.unwrap());
+}