Restructure for testability and implement first tests

tests/util/mod.rs

@@ -0,0 +1,50 @@
+use hoc::{config::Settings, telemetry};
+
+use std::net::TcpListener;
+
+use tempfile::{tempdir, TempDir};
+
+lazy_static::lazy_static! {
+    static ref TRACING: () = {
+        let filter = if std::env::var("TEST_LOG").is_ok() { "debug" } else { "" };
+        let subscriber = telemetry::get_subscriber("test", filter);
+        telemetry::init_subscriber(subscriber);
+    };
+}
+
+pub struct TestApp {
+    pub address: String,
+    repo_dir: TempDir,
+    cache_dir: TempDir,
+}
+
+pub async fn spawn_app() -> TestApp {
+    lazy_static::initialize(&TRACING);
+
+    let listener = TcpListener::bind("127.0.0.1:0").expect("Failed to bind random port");
+
+    let port = listener.local_addr().unwrap().port();
+    let address = format!("http://127.0.0.1:{}", port);
+
+    let repo_dir = tempdir().expect("Cannot create repo_dir");
+    let cache_dir = tempdir().expect("Cannot create cache_dir");
+
+    let mut settings = Settings::load().expect("Failed to read configuration.");
+    settings.repodir = repo_dir.path().to_path_buf();
+    settings.cachedir = cache_dir.path().to_path_buf();
+    // configuration.database.database_name = Uuid::new_v4().to_string();
+
+    // let connection_pool = configure_database(&configuration.database).await;
+
+    let server = hoc::run(listener, settings)
+        .await
+        .expect("Failed to bind address");
+
+    let _ = tokio::spawn(server);
+
+    TestApp {
+        address,
+        repo_dir,
+        cache_dir,
+    }
+}