feat: add tests

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/flux-releaser/tests/publish_artifacts.rs

@@ -0,0 +1,48 @@
+struct Server {}
+
+impl Server {
+    pub async fn new() -> Self {
+        Self {}
+    }
+
+    pub async fn start(&self) -> anyhow::Result<()> {
+        Ok(())
+    }
+}
+
+static INIT: std::sync::Once = std::sync::Once::new();
+
+// Makes sure the setup is ready for execution
+async fn is_ready() -> anyhow::Result<()> {
+    tokio::time::sleep(std::time::Duration::from_secs(1)).await;
+
+    Ok(())
+}
+
+async fn setup() -> anyhow::Result<()> {
+    INIT.call_once(|| {
+        tokio::spawn(async move {
+            println!("once was created once");
+            Server::new().await.start().await.unwrap();
+        });
+    });
+
+    is_ready().await?;
+
+    Ok(())
+}
+
+#[tokio::test]
+async fn can_create_artifact() -> anyhow::Result<()> {
+    setup().await?;
+    anyhow::bail!("failed one");
+    Ok(())
+}
+
+#[tokio::test]
+async fn can_more_create_artifact() -> anyhow::Result<()> {
+    setup().await?;
+
+    anyhow::bail!("failed two");
+    Ok(())
+}