refactor: move common test code into module

tests/common/mod.rs

@@ -0,0 +1,29 @@
+use log::*;
+use nostr_rs_relay::config;
+use nostr_rs_relay::server::start_server;
+use std::sync::mpsc as syncmpsc;
+use std::sync::mpsc::{Receiver as MpscReceiver, Sender as MpscSender};
+use std::thread;
+use std::thread::JoinHandle;
+
+pub struct Relay {
+    pub handle: JoinHandle<()>,
+    pub shutdown_tx: MpscSender<()>,
+}
+
+pub fn start_relay(port: u16) -> Relay {
+    let _ = env_logger::try_init();
+    info!("Starting up from main");
+    // replace default settings
+    let mut settings = config::Settings::default();
+    settings.database.in_memory = true;
+    settings.network.port = port;
+    let (shutdown_tx, shutdown_rx): (MpscSender<()>, MpscReceiver<()>) = syncmpsc::channel();
+    let handle = thread::spawn(|| {
+        let _ = start_server(settings, shutdown_rx);
+    });
+    return Relay {
+        handle,
+        shutdown_tx,
+    };
+}