1 files changed, 17 insertions, 0 deletions
diff --git a/std/textproto/test.ts b/std/textproto/test.ts
new file mode 100644
index 000000000..bdb929369
--- /dev/null
+++ b/std/textproto/test.ts
@@ -0,0 +1,17 @@
+// Based on https://github.com/golang/go/blob/891682/src/net/textproto/
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+import { append } from "./mod.ts";
+import { assertEquals } from "../testing/asserts.ts";
+import { test } from "../testing/mod.ts";
+
+test(async function textprotoAppend(): Promise<void> {
+  const enc = new TextEncoder();
+  const dec = new TextDecoder();
+  const u1 = enc.encode("Hello ");
+  const u2 = enc.encode("World");
+  const joined = append(u1, u2);
+  assertEquals(dec.decode(joined), "Hello World");
+});