1 files changed, 13 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/source/issue-2520.rs b/src/tools/rustfmt/tests/source/issue-2520.rs
new file mode 100644
index 000000000..5a23f1043
--- /dev/null
+++ b/src/tools/rustfmt/tests/source/issue-2520.rs
@@ -0,0 +1,13 @@
+// rustfmt-normalize_comments: true
+// rustfmt-format_code_in_doc_comments: true
+
+//! ```rust
+//! println!( "hello, world" );
+//! ```
+
+#![deny( missing_docs )]
+
+//! ```rust
+//! println!("hello, world");
+
+#![deny( missing_docs )]