basic integration tests

tests/non-huge-cars.rs

···
+extern crate repo_stream;
+use futures::TryStreamExt;
+use iroh_car::CarReader;
+use std::convert::Infallible;
+
+const TINY_CAR: &'static [u8] = include_bytes!("../car-samples/tiny.car");
+const LITTLE_CAR: &'static [u8] = include_bytes!("../car-samples/little.car");
+const MIDSIZE_CAR: &'static [u8] = include_bytes!("../car-samples/midsize.car");
+
+
+async fn test_car(bytes: &[u8], expected_records: usize, expected_sum: usize) {
+    let reader = CarReader::new(bytes).await.unwrap();
+
+    let root = reader
+        .header()
+        .roots()
+        .first()
+        .ok_or("missing root").unwrap()
+        .clone();
+
+    let stream = std::pin::pin!(reader.stream());
+
+    let (_commit, v) =
+        repo_stream::drive::Vehicle::init(root, stream, |block| Ok::<_, Infallible>(block.len()))
+            .await
+            .unwrap();
+    let mut record_stream = std::pin::pin!(v.stream());
+
+    let mut records = 0;
+    let mut sum = 0;
+    let mut found_bsky_profile = false;
+    let mut prev_rkey = "".to_string();
+    while let Some((rkey, size)) = record_stream.try_next().await.unwrap() {
+        records += 1;
+        sum += size;
+        if rkey.0 == "app.bsky.actor.profile/self" {
+            found_bsky_profile = true;
+        }
+        assert!(rkey.0 > prev_rkey, "rkeys are streamed in order");
+        prev_rkey = rkey.0;
+    }
+    assert_eq!(records, expected_records);
+    assert_eq!(sum, expected_sum);
+    assert!(found_bsky_profile);
+}
+
+#[tokio::test]
+async fn test_tiny_car() {
+    test_car(TINY_CAR, 8, 2071).await
+}
+
+#[tokio::test]
+async fn test_little_car() {
+    test_car(LITTLE_CAR, 278, 246960).await
+}
+
+#[tokio::test]
+async fn test_midsize_car() {
+    test_car(MIDSIZE_CAR, 11585, 3741393).await
+}