CLI command architecture and DB-backed model update syncing (#397)

crates-cli/yaak-cli/tests/common/http_server.rs

@@ -0,0 +1,42 @@
+use std::io::{Read, Write};
+use std::net::TcpListener;
+use std::thread;
+
+pub struct TestHttpServer {
+    pub url: String,
+    handle: Option<thread::JoinHandle<()>>,
+}
+
+impl TestHttpServer {
+    pub fn spawn_ok(body: &'static str) -> Self {
+        let listener = TcpListener::bind("127.0.0.1:0").expect("Failed to bind test HTTP server");
+        let addr = listener.local_addr().expect("Failed to get local addr");
+        let url = format!("http://{addr}/test");
+        let body_bytes = body.as_bytes().to_vec();
+
+        let handle = thread::spawn(move || {
+            if let Ok((mut stream, _)) = listener.accept() {
+                let mut request_buf = [0u8; 4096];
+                let _ = stream.read(&mut request_buf);
+
+                let response = format!(
+                    "HTTP/1.1 200 OK\r\nContent-Type: text/plain\r\nContent-Length: {}\r\nConnection: close\r\n\r\n",
+                    body_bytes.len()
+                );
+                let _ = stream.write_all(response.as_bytes());
+                let _ = stream.write_all(&body_bytes);
+                let _ = stream.flush();
+            }
+        });
+
+        Self { url, handle: Some(handle) }
+    }
+}
+
+impl Drop for TestHttpServer {
+    fn drop(&mut self) {
+        if let Some(handle) = self.handle.take() {
+            let _ = handle.join();
+        }
+    }
+}