Start to build cli player

rust/sea_battle_backend/src/test/random_mode.rs

@@ -0,0 +1,39 @@
+use crate::args::Args;
+use crate::server::start_server;
+use crate::test::bot_client::{ClientEndResult, RunMode};
+use crate::test::network_utils::wait_for_port;
+use crate::test::{bot_client, TestPort};
+use std::error::Error;
+use tokio::task;
+
+async fn play_random(port: TestPort) -> Result<ClientEndResult, Box<dyn Error>> {
+    bot_client::BotClient::new(port.as_url())
+        .with_run_mode(RunMode::Random)
+        .run_client()
+        .await
+}
+
+#[tokio::test]
+async fn four_games() {
+    let _ = env_logger::builder().is_test(true).try_init();
+
+    let local_set = task::LocalSet::new();
+    local_set
+        .run_until(async move {
+            task::spawn_local(start_server(Args::for_test(TestPort::RandomModeFourGames)));
+            wait_for_port(TestPort::RandomModeFourGames.port()).await;
+
+            let mut fut = vec![];
+            for _ in 0..4 {
+                fut.push(task::spawn_local(play_random(
+                    TestPort::RandomModeFourGames,
+                )));
+            }
+
+            for handle in fut {
+                let res = handle.await.unwrap().unwrap();
+                assert!(matches!(res, ClientEndResult::Finished { .. }));
+            }
+        })
+        .await;
+}