Move src/ into core/src. Top-level crate is now called solana-workspace

core/src/test_tx.rs

@@ -0,0 +1,11 @@
+use solana_sdk::hash::Hash;
+use solana_sdk::signature::{Keypair, KeypairUtil};
+use solana_sdk::system_transaction::SystemTransaction;
+use solana_sdk::transaction::Transaction;
+
+pub fn test_tx() -> Transaction {
+    let keypair1 = Keypair::new();
+    let pubkey1 = keypair1.pubkey();
+    let zero = Hash::default();
+    SystemTransaction::new_account(&keypair1, pubkey1, 42, zero, 0)
+}