1 files changed, 12 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/source/issue-3984.rs b/src/tools/rustfmt/tests/source/issue-3984.rs
new file mode 100644
index 00000000000..c9bcfa40635
--- /dev/null
+++ b/src/tools/rustfmt/tests/source/issue-3984.rs
@@ -0,0 +1,12 @@
+use a::{item /* comment */};
+use b::{
+    a,
+    // comment
+    item,
+};
+use c::item /* comment */;
+use d::item; // really long comment (with `use` exactly 100 characters) ____________________________
+
+use std::e::{/* it's a comment! */ bar /* and another */};
+use std::f::{/* it's a comment! */ bar};
+use std::g::{bar /* and another */};