1 files changed, 20 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/source/dyn_trait.rs b/src/tools/rustfmt/tests/source/dyn_trait.rs
new file mode 100644
index 000000000..012643be9
--- /dev/null
+++ b/src/tools/rustfmt/tests/source/dyn_trait.rs
@@ -0,0 +1,20 @@
+#![feature(dyn_trait)]
+
+fn main() {
+    // #2506
+    // checks rustfmt doesn't remove dyn
+    trait MyTrait {
+        fn method(&self) -> u64;
+    }
+    fn f1(a: Box<dyn MyTrait>) {}
+
+    // checks if line wrap works correctly
+    trait Very_______________________Long__________________Name_______________________________Trait {
+        fn method(&self) -> u64;
+    }
+
+    fn f2(a: Box<dyn Very_______________________Long__________________Name____________________Trait+ 'static,>) {}
+
+    // #2582
+    let _: &dyn (::std::any::Any) = &msg;
+}