1 files changed, 12 insertions, 0 deletions
diff --git a/src/path/path_test.go b/src/path/path_test.go
index a57286f6b8..6bd7a2cdad 100644
--- a/src/path/path_test.go
+++ b/src/path/path_test.go
@@ -5,6 +5,7 @@
 package path_test
 
 import (
+	"path"
 	. "path"
 	"runtime"
 	"testing"
@@ -234,3 +235,14 @@ func TestIsAbs(t *testing.T) {
 		}
 	}
 }
+
+func BenchmarkJoin(b *testing.B) {
+	b.ReportAllocs()
+	parts := []string{"one", "two", "three", "four"}
+	s := parts[0]
+	for b.Loop() {
+		parts[0] = s
+		s = path.Join(parts...)
+		s = s[:3]
+	}
+}