1 files changed, 30 insertions, 0 deletions
diff --git a/tests/ui/generator/xcrate.rs b/tests/ui/generator/xcrate.rs
new file mode 100644
index 00000000000..40986bbeb65
--- /dev/null
+++ b/tests/ui/generator/xcrate.rs
@@ -0,0 +1,30 @@
+// run-pass
+
+// aux-build:xcrate.rs
+
+#![feature(generators, generator_trait)]
+
+extern crate xcrate;
+
+use std::ops::{GeneratorState, Generator};
+use std::pin::Pin;
+
+fn main() {
+    let mut foo = xcrate::foo();
+
+    match Pin::new(&mut foo).resume(()) {
+        GeneratorState::Complete(()) => {}
+        s => panic!("bad state: {:?}", s),
+    }
+
+    let mut foo = xcrate::bar(3);
+
+    match Pin::new(&mut foo).resume(()) {
+        GeneratorState::Yielded(3) => {}
+        s => panic!("bad state: {:?}", s),
+    }
+    match Pin::new(&mut foo).resume(()) {
+        GeneratorState::Complete(()) => {}
+        s => panic!("bad state: {:?}", s),
+    }
+}