Add more abstract integration test

Cargo.lock

@@ -3319,6 +3319,7 @@ dependencies = [
  "caldata",
  "clap",
  "figment",
+ "futures-util",
  "headers",
  "http",
  "insta",
@@ -3344,6 +3345,7 @@ dependencies = [
  "similar-asserts",
  "sqlx",
  "tokio",
+ "tokio-util",
  "toml 0.9.11+spec-1.1.0",
  "tower",
  "tower-http",
@@ -4471,6 +4473,7 @@ dependencies = [
  "bytes",
  "futures-core",
  "futures-sink",
+ "futures-util",
  "pin-project-lite",
  "tokio",
 ]

Cargo.toml

@@ -73,6 +73,7 @@ tokio = { version = "1.48", features = [
   "rt-multi-thread",
   "full",
 ] }
+tokio-util = { version = "0.7", features = ["rt"] }
 url = "2.5"
 base64 = "0.22"
 thiserror = "2.0"
@@ -166,6 +167,7 @@ caldata.workspace = true
 toml.workspace = true
 serde.workspace = true
 tokio.workspace = true
+tokio-util.workspace = true
 tracing.workspace = true
 anyhow.workspace = true
 clap.workspace = true
@@ -204,3 +206,4 @@ tower-http.workspace = true
 axum-extra.workspace = true
 headers.workspace = true
 http.workspace = true
+futures-util.workspace = true

tests/common/mod.rs

@@ -0,0 +1,72 @@
+use rustical::{
+    Args, cmd_default,
+    config::{Config, DataStoreConfig, HttpConfig, SqliteDataStoreConfig},
+};
+use std::{
+    net::{Ipv4Addr, SocketAddrV4, TcpListener},
+    sync::Arc,
+    thread::{self, JoinHandle},
+};
+use tokio::sync::Notify;
+use tokio_util::sync::CancellationToken;
+
+pub fn find_free_port() -> Option<u16> {
+    let mut port = 15000;
+    // Frees the socket on drop such that this function returns a free port
+    while TcpListener::bind(SocketAddrV4::new(Ipv4Addr::UNSPECIFIED, port)).is_err() {
+        port += 1;
+
+        if port >= 16000 {
+            return None;
+        }
+    }
+    Some(port)
+}
+
+pub fn rustical_process() -> (CancellationToken, u16, JoinHandle<()>, Arc<Notify>) {
+    let port = find_free_port().unwrap();
+    let token = CancellationToken::new();
+    let cloned_token = token.clone();
+    let start_notify = Arc::new(Notify::new());
+    let cloned_start_notify = start_notify.clone();
+
+    let main_process = thread::spawn(move || {
+        let rt = tokio::runtime::Runtime::new().unwrap();
+        let fut = async {
+            cmd_default(
+                Args {
+                    config_file: "asldajldakjsdkj".to_owned(),
+                    no_migrations: false,
+                    command: None,
+                },
+                Config {
+                    data_store: DataStoreConfig::Sqlite(SqliteDataStoreConfig {
+                        db_url: ":memory:".to_owned(),
+                        run_repairs: true,
+                        skip_broken: false,
+                    }),
+                    http: HttpConfig {
+                        host: "127.0.0.1".to_owned(),
+                        port,
+                        ..Default::default()
+                    },
+                    frontend: Default::default(),
+                    oidc: None,
+                    tracing: Default::default(),
+                    dav_push: Default::default(),
+                    nextcloud_login: Default::default(),
+                    caldav: Default::default(),
+                },
+                Some(cloned_start_notify),
+            )
+            .await
+        };
+        rt.block_on(async {
+            tokio::select! {
+                _ = cloned_token.cancelled() => {},
+                _ = fut => {}
+            }
+        });
+    });
+    (token, port, main_process, start_notify)
+}

tests/http_integration.rs

@@ -0,0 +1,44 @@
+// This integration test checks whether the HTTP server works by actually running rustical in a new
+// thread.
+use common::rustical_process;
+use http::StatusCode;
+use std::time::Duration;
+
+mod common;
+
+pub async fn test_runner<O, F>(inner: F)
+where
+    O: IntoFuture<Output = ()>,
+    // <O as IntoFuture>::IntoFuture: UnwindSafe,
+    F: FnOnce(String) -> O,
+{
+    // Start RustiCal process
+    let (token, port, main_process, start_notify) = rustical_process();
+    let origin = format!("http://localhost:{port}");
+
+    // Wait for RustiCal server to listen
+    tokio::time::timeout(Duration::new(2, 0), start_notify.notified())
+        .await
+        .unwrap();
+
+    // We use catch_unwind to make sure we'll always correctly stop RustiCal
+    // Otherwise, our process would just run indefinitely
+    inner(origin).into_future().await;
+
+    // Signal RustiCal to stop
+    token.cancel();
+    main_process.join().unwrap();
+}
+
+#[tokio::test]
+async fn test_ping() {
+    test_runner(async |origin| {
+        let resp = reqwest::get(origin.clone() + "/ping").await.unwrap();
+        assert_eq!(resp.status(), StatusCode::OK);
+
+        // Ensure that path normalisation works as intended
+        let resp = reqwest::get(origin + "/ping/").await.unwrap();
+        assert_eq!(resp.status(), StatusCode::OK);
+    })
+    .await
+}

tests/light_integrations.rs

@@ -1 +0,0 @@
-mod integration_tests;

tests/run_integration_tests.rs

@@ -0,0 +1,3 @@
+// This file is just an entrypoint for integration_tests
+// since the test runner only looks for files to run.
+mod integration_tests;