3 files changed, 3 insertions, 0 deletions
diff --git a/std/testing/bench_example.ts b/std/testing/bench_example.ts
index 366521f85..41b1ca65c 100644
--- a/std/testing/bench_example.ts
+++ b/std/testing/bench_example.ts
@@ -1,3 +1,4 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 // https://deno.land/std/testing/bench.ts
 import { BenchmarkTimer, bench, runBenchmarks } from "./bench.ts";
 
diff --git a/std/testing/bench_test.ts b/std/testing/bench_test.ts
index 9e5253b1a..97517358a 100644
--- a/std/testing/bench_test.ts
+++ b/std/testing/bench_test.ts
@@ -1,3 +1,4 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 import {
   bench,
   runBenchmarks,
diff --git a/std/testing/diff_test.ts b/std/testing/diff_test.ts
index 072f39622..33752d89f 100644
--- a/std/testing/diff_test.ts
+++ b/std/testing/diff_test.ts
@@ -1,3 +1,4 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 import diff from "./diff.ts";
 import { assertEquals } from "../testing/asserts.ts";