67 lines
3.5 KiB
Rust
67 lines
3.5 KiB
Rust
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//! The one test that meets a real JetStream: a submission becomes an
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//! aggregate, a desk move is accepted, an undeclared move is refused,
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//! and the record reads back from its own event log. Everything else
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//! in the suite replays in memory; this is what proves the store, the
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//! event log and the projection agree with each other.
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//!
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//! Runs only when `PORTAL_TEST_NATS_URL` points at a JetStream (CI
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//! starts a throwaway one, see `.gitea/workflows/test.yml`); without
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//! it the test passes as skipped, so `cargo test` stays green offline.
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#![cfg(feature = "ssr")]
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use portal::aggregates::{self, parse_aggregates_yaml, TransitionError};
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use portal::answers::{store_answer, Answer};
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use portal::events::store::{ensure_stream, load_events};
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use serde_json::json;
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#[tokio::test]
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async fn a_submission_is_created_moved_refused_and_read_back_through_the_real_engine() {
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let Ok(url) = std::env::var("PORTAL_TEST_NATS_URL") else {
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eprintln!("skipped: PORTAL_TEST_NATS_URL is not set");
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return;
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};
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let js = async_nats::jetstream::new(async_nats::connect(&url).await.expect("connect"));
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ensure_stream(&js).await.expect("event stream");
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// A bucket of its own per run, so reruns and parallel runs never
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// read each other's records.
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let bucket = format!("it_{}", chrono::Utc::now().timestamp_millis());
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let schemas = parse_aggregates_yaml(&format!(
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"aggregates:\n - bucket: {bucket}\n initial: open\n states:\n open: {{ event: received }}\n quoted: {{ event: quoted }}\n won: {{ event: won }}\n lost: {{ event: lost }}\n transitions:\n open: [quoted, lost]\n quoted: [won, lost]\n"
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))
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.expect("schema");
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let schema = &schemas[&bucket];
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let now = chrono::Utc::now().timestamp_millis();
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// The submission: a KV record in the initial state, plus the first event.
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store_answer(&js, &schemas, &bucket, "rec-1".into(), "/", "Hire us", &json!({"email": "a@b.example"}), now)
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.await
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.expect("store");
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let store = js.get_key_value(&bucket).await.expect("bucket exists");
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let stored: Answer = serde_json::from_slice(&store.get("rec-1").await.unwrap().expect("record")).unwrap();
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assert_eq!(stored.state, "open");
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assert_eq!(stored.responses["email"], "a@b.example");
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// A desk move the machine allows.
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let moved = aggregates::transition(&js, schema, "rec-1", "quoted", json!({"by": "test"}), now + 1)
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.await
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.expect("open -> quoted is declared");
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assert_eq!(moved.state, "quoted");
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// Moves the machine does not allow are refused, whoever asks.
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let back = aggregates::transition(&js, schema, "rec-1", "open", json!({}), now + 2).await;
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assert!(matches!(back, Err(TransitionError::DisallowedTransition { .. })), "{back:?}");
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let skip = aggregates::transition(&js, schema, "rec-1", "won", json!({}), now + 2).await;
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assert!(skip.is_ok(), "quoted -> won is declared: {skip:?}");
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let nobody = aggregates::transition(&js, schema, "rec-9", "quoted", json!({}), now + 3).await;
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assert!(matches!(nobody, Err(TransitionError::UnknownAggregate)), "{nobody:?}");
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// The record reads back from its own event log, in the state the
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// accepted moves left it, with a sequence that moved forward.
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let events = load_events(&js, &bucket, "rec-1").await.expect("events");
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assert_eq!(events.len(), 3, "received, quoted, won");
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let replayed = aggregates::replay(schema, "rec-1", &events).expect("replays");
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assert_eq!(replayed.state, "won");
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assert!(replayed.sequence > moved.sequence);
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}
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