Add new test for invalid TLS configuration

src/test/server_invalid_tls_config_invalid_key.rs

@@ -0,0 +1,31 @@
+use crate::tcp_relay_server::server_config::ServerConfig;
+use crate::test::pki::Pki;
+use crate::test::{get_port_number, PortsAllocation};
+
+const TOKEN: &str = "mytok";
+
+fn port(index: u16) -> u16 {
+    get_port_number(PortsAllocation::TestsWithoutPortOpened, index)
+}
+
+#[tokio::test]
+async fn test() {
+    let _ = env_logger::builder().is_test(true).try_init();
+
+    let pki = Pki::load();
+
+    crate::tcp_relay_server::run_app(ServerConfig {
+        tokens: vec![TOKEN.to_string()],
+        tokens_file: None,
+        ports: vec![port(1)],
+        upstream_server: "127.0.0.1".to_string(),
+        listen_address: format!("127.0.0.1:{}", port(0)),
+        increment_ports: 1,
+        tls_cert: Some(pki.root_ca_crt.file_path()),
+        tls_key: Some(pki.root_ca_crt.file_path()),
+        tls_client_auth_root_cert: None,
+        tls_revocation_list: None,
+    })
+    .await
+    .unwrap_err();
+}