Add integration test

tests/integration.rs

@@ -0,0 +1,23 @@
+use std::net::{TcpListener};
+
+use std::io::Read;
+
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let listener = TcpListener::bind("127.0.0.1:7878").unwrap();
+    
+        let mut stream = listener.accept().unwrap().0;
+
+        let mut buf: [u8; 128] = [0; 128];
+        stream.read(&mut buf).unwrap();
+
+        for x in buf {
+            print!("{x}, ");
+        }
+    }
+}