Test with impl Trait output

la10736 · Jun 28, 2020 · 0e411c3 · 0e411c3
1 parent 066e8f1
commit 0e411c3
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diff --git a/resources/fixture/async_fixture.rs b/resources/fixture/async_fixture.rs
@@ -1,4 +1,5 @@
 use std::future::Future;
+use std::io::prelude::*;
 
 use rstest::*;
 
@@ -16,3 +17,13 @@ async fn default_is_async() {
 async fn use_async_fixture(async_u32: impl Future<Output=u32>) {
     assert_eq!(42, async_u32.await);
 }
+
+#[fixture]
+async fn async_impl_output() -> impl Read {
+    std::io::Cursor::new(vec![1, 2, 3, 4, 5])
+}
+
+#[rstest]
+async fn use_async_impl_output<T: Read>(async_impl_output: impl Future<Output = T>) {
+    let reader = async_impl_output.await;
+}
diff --git a/tests/fixture/mod.rs b/tests/fixture/mod.rs
@@ -93,6 +93,7 @@ mod should {
         TestResults::new()
             .ok("default_is_async")
             .ok("use_async_fixture")
+            .ok("use_async_impl_output")
             .assert(output);
     }