implement and test ready function

src/lib.rs

@@ -75,7 +75,8 @@ where
     write!(&mut self.writer, "{}", commands::UCIOK).expect("failed to send `uciok` command");
   }
 
+  /// Sends `readyok` to the GUI
   pub fn ready(&mut self) {
-    // TODO: TESTS TO MAKE SURE IT SENDS READYOK
+    write!(&mut self.writer, "{}", commands::ReADYOK).expect("failed to send `readyok` command");
   }
 }

tests/lib.rs

@@ -14,7 +14,7 @@ fn instantiate_new_engine() {
 }
 
 #[test]
-fn send_indentification_data() {
+fn send_identification_data() {
   let input = b"UNUSED";
   let mut output = Vec::new();
 
@@ -27,6 +27,19 @@ fn send_indentification_data() {
   // NOTE: This looks weird bceause you'd think it would store each insertion into the output buffer
   //       as a separate element of that buffer, but it really just appends the two strings since in reality
   //       the buffer would be flushed after reading.
-  assert_eq!(str::from_utf8(&output).unwrap_or("Unwrapping output failed in test #2"),
+  assert_eq!(str::from_utf8(&output).unwrap_or("Unwrapping output failed in send_identification_data"),
              "id name test_name\nid author test\n");
 }
+
+#[test]
+fn send_readyok() {
+  let input = b"UNUSED";
+  let mut output = Vec::new();
+  {
+    let mut e = Engine::new("test_name", "test", &input[..], &mut output);
+    e.ready();
+  }
+
+  assert_eq!(str::from_utf8(&output).unwrap_or("Unwrapping output failed in send_readyok"),
+             "readyok\n");
+}