1 files changed, 25 insertions, 0 deletions
diff --git a/syn-mid/examples/const_fn_test/tests/test.rs b/syn-mid/examples/const_fn_test/tests/test.rs
new file mode 100644
index 0000000..1b2c742
--- /dev/null
+++ b/syn-mid/examples/const_fn_test/tests/test.rs
@@ -0,0 +1,25 @@
+#![cfg_attr(nightly, feature(const_fn, const_vec_new))]
+#![warn(rust_2018_idioms)]
+#![allow(dead_code)]
+
+use const_fn::const_fn;
+
+#[const_fn(nightly)]
+fn const_vec_new<T>() -> Vec<T> {
+    let vec = Vec::new();
+    vec
+}
+
+#[test]
+fn test_stable() {
+    assert_eq!(const_vec_new::<u8>(), Vec::new());
+}
+
+#[cfg(nightly)]
+const CONST_UNSTABLE: Vec<u8> = const_vec_new();
+
+#[cfg(nightly)]
+#[test]
+fn test_unstable() {
+    assert_eq!(CONST_UNSTABLE, Vec::new());
+}