Arseni- add (#4)

README.md

@@ -109,7 +109,8 @@ docker run --name zebra-node --network zcash-network -p 18232:18232 qedit/zebra-
 Here are the 3 options (No parameters will default to the first configuration)
 
 ```bash
-docker run --network zcash-network -e ZCASH_NODE_ADDRESS=127.0.0.1 -e ZCASH_NODE_PORT=18232 -e ZCASH_NODE_PROTOCOL=http zcash_tx_tool
-docker run --network zcash-network -e ZCASH_NODE_ADDRESS=zebra-node -e ZCASH_NODE_PORT=18232 -e ZCASH_NODE_PROTOCOL=http zcash_tx_tool
-docker run --network zcash-network -e ZCASH_NODE_ADDRESS=<Domain> -e ZCASH_NODE_PORT=18232 -e ZCASH_NODE_PROTOCOL=http zcash_tx_tool
+docker run -it --network zcash-network -e ZCASH_NODE_ADDRESS=127.0.0.1 -e ZCASH_NODE_PORT=18232 -e ZCASH_NODE_PROTOCOL=http zcash_tx_tool
+docker run -it --network zcash-network -e ZCASH_NODE_ADDRESS=zebra-node -e ZCASH_NODE_PORT=18232 -e ZCASH_NODE_PROTOCOL=http zcash_tx_tool
+docker run -it --network zcash-network -e ZCASH_NODE_ADDRESS=<Domain> -e ZCASH_NODE_PORT=18232 -e ZCASH_NODE_PROTOCOL=http zcash_tx_tool
 ```
+The '-it' parameter was added to allow the demo to be interactive.

src/commands/test.rs

@@ -12,6 +12,7 @@ use crate::components::rpc_client::reqwest::ReqwestRpcClient;
 use crate::prelude::*;
 use crate::components::wallet::Wallet;
 use crate::config::AppConfig;
+use std::io::{self, Write};
 
 
 /// Run the E2E test
@@ -61,6 +62,8 @@ impl Runnable for TestCmd {
         let mut balances = TestBalances::get(&mut wallet);
         print_balances("=== Initial balances ===", balances);
 
+        pause();
+
         // --------------------- Shield miner's reward ---------------------
 
         let shielding_tx = create_shield_coinbase_tx(miner, coinbase_txid, &mut wallet);
@@ -69,6 +72,8 @@ impl Runnable for TestCmd {
         let expected_delta = TestBalances::new(500_000_000 /*coinbase_reward*/, 0);
         balances = check_balances("=== Balances after shielding ===", balances, expected_delta, &mut wallet);
 
+        pause();
+
         // --------------------- Create transfer ---------------------
 
         let amount_to_transfer_1: i64 = 2;
@@ -78,9 +83,18 @@ impl Runnable for TestCmd {
 
         let expected_delta = TestBalances::new(-amount_to_transfer_1, amount_to_transfer_1);
         check_balances("=== Balances after transfer ===", balances, expected_delta, &mut wallet);
+
+        pause();
     }
 }
 
+fn pause() {
+    print!("Press Enter to continue the demo...");
+    io::stdout().flush().unwrap();
+    let mut input = String::new();
+    io::stdin().read_line(&mut input).unwrap();
+}
+
 fn prepare_test(config: &Reader<AppConfig>, wallet: &mut Wallet, rpc_client: &mut ReqwestRpcClient) -> TxId {
     wallet.reset();
     sync_from_height(config.chain.nu5_activation_height, wallet, rpc_client);