add basic backend

backend/tests/healthcheck.rs

@@ -0,0 +1,26 @@
+use std::{sync::LazyLock, time::Duration};
+
+use http::StatusCode;
+use reqwest::Client;
+
+static client: LazyLock<Client> = LazyLock::new(|| {
+    Client::builder()
+        .timeout(Duration::from_secs(10))
+        .connect_timeout(Duration::from_secs(5))
+        .build()
+        .expect("Could not build reqwest client")
+});
+
+#[tokio::test]
+async fn test_healthcheck_returns_healthy() {
+    let resp = client
+        .get("http://localhost:7001/healthcheck")
+        .send()
+        .await
+        .expect("Could not get server");
+
+    assert_eq!(resp.status(), StatusCode::OK);
+
+    let body = resp.text().await.expect("Could not get response text");
+    assert_eq!(body, String::from(r#"{"healthy":true}"#));
+}