1 files changed, 28 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/source/width-heuristics.rs b/src/tools/rustfmt/tests/source/width-heuristics.rs
new file mode 100644
index 000000000..a591218b4
--- /dev/null
+++ b/src/tools/rustfmt/tests/source/width-heuristics.rs
@@ -0,0 +1,28 @@
+// rustfmt-max_width: 120
+
+// elems on multiple lines for max_width 100, but same line for max_width 120
+fn foo(e: Enum) {
+    match e {
+        Enum::Var {
+            elem1,
+            elem2,
+            elem3,
+        } => {
+            return;
+        }
+    }
+}
+
+// elems not on same line for either max_width 100 or 120
+fn bar(e: Enum) {
+    match e {
+        Enum::Var {
+            elem1,
+            elem2,
+            elem3,
+            elem4,
+        } => {
+            return;
+        }
+    }
+}