add emojis and systemctl active check test

src/main.rs

@@ -1,5 +1,7 @@
+use std::io::prelude::*;
 use std::net::TcpStream;
 use ssh2::Session;
+use emojis_rs::*;
 
 const USER: &str = "aaronh";
 const EDI: &str = "100.94.173.5:22";
@@ -16,9 +18,22 @@ fn main() {
     sess.userauth_agent(USER).unwrap();
     
     if sess.authenticated() {
-        println!("Authentication successful!");
+        println!("Authentication successful! {EMOJI_CHECK}");
     } else {
-        println!("Authentication failed!");
+        println!("Authentication failed! {EMOJI_CROSS}");
     }
 
+    let mut channel = sess.channel_session().unwrap();
+    channel.exec("systemctl is-active gollum").unwrap();
+    let mut s = String::new();
+    channel.read_to_string(&mut s).unwrap();
+    channel.wait_close().unwrap();
+
+    let exit_code = channel.exit_status().unwrap();
+    
+    if exit_code == 0 {
+        println!("Gollum service is active {EMOJI_CHECK}");
+    } else {
+        println!("Gollum service is inactive {EMOJI_CROSS}(exit code: {})", exit_code);
+    }
 }