1 files changed, 44 insertions, 0 deletions
diff --git a/vendor/futures/tests/future_try_join_all.rs b/vendor/futures/tests/future_try_join_all.rs
new file mode 100644
index 000000000..a4b3bb76a
--- /dev/null
+++ b/vendor/futures/tests/future_try_join_all.rs
@@ -0,0 +1,44 @@
+use futures::executor::block_on;
+use futures_util::future::{err, ok, try_join_all, TryJoinAll};
+use std::fmt::Debug;
+use std::future::Future;
+
+fn assert_done<T, F>(actual_fut: F, expected: T)
+where
+    T: PartialEq + Debug,
+    F: FnOnce() -> Box<dyn Future<Output = T> + Unpin>,
+{
+    let output = block_on(actual_fut());
+    assert_eq!(output, expected);
+}
+
+#[test]
+fn collect_collects() {
+    assert_done(|| Box::new(try_join_all(vec![ok(1), ok(2)])), Ok::<_, usize>(vec![1, 2]));
+    assert_done(|| Box::new(try_join_all(vec![ok(1), err(2)])), Err(2));
+    assert_done(|| Box::new(try_join_all(vec![ok(1)])), Ok::<_, usize>(vec![1]));
+    // REVIEW: should this be implemented?
+    // assert_done(|| Box::new(try_join_all(Vec::<i32>::new())), Ok(vec![]));
+
+    // TODO: needs more tests
+}
+
+#[test]
+fn try_join_all_iter_lifetime() {
+    // In futures-rs version 0.1, this function would fail to typecheck due to an overly
+    // conservative type parameterization of `TryJoinAll`.
+    fn sizes(bufs: Vec<&[u8]>) -> Box<dyn Future<Output = Result<Vec<usize>, ()>> + Unpin> {
+        let iter = bufs.into_iter().map(|b| ok::<usize, ()>(b.len()));
+        Box::new(try_join_all(iter))
+    }
+
+    assert_done(|| sizes(vec![&[1, 2, 3], &[], &[0]]), Ok(vec![3_usize, 0, 1]));
+}
+
+#[test]
+fn try_join_all_from_iter() {
+    assert_done(
+        || Box::new(vec![ok(1), ok(2)].into_iter().collect::<TryJoinAll<_>>()),
+        Ok::<_, usize>(vec![1, 2]),
+    )
+}