1 files changed, 10 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/source/single-line-macro/v2.rs b/src/tools/rustfmt/tests/source/single-line-macro/v2.rs
new file mode 100644
index 000000000..51a665f75
--- /dev/null
+++ b/src/tools/rustfmt/tests/source/single-line-macro/v2.rs
@@ -0,0 +1,10 @@
+// rustfmt-version: Two
+
+// #2652
+// Preserve trailing comma inside macro, even if it looks an array.
+macro_rules! bar {
+    ($m:ident) => {
+        $m!([a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z,]);
+        $m!([a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z]);
+    };
+}