From 568ac0c9026b6f4012e2511a026bb5eb31a06020 Mon Sep 17 00:00:00 2001
From: Kitson Kelly <me@kitsonkelly.com>
Date: Fri, 7 Dec 2018 10:23:29 +1100
Subject: Add ASCII support to TextDecoder

---
 js/text_encoding_test.ts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'js/text_encoding_test.ts')

diff --git a/js/text_encoding_test.ts b/js/text_encoding_test.ts
index 402044e36..efb841fc6 100644
--- a/js/text_encoding_test.ts
+++ b/js/text_encoding_test.ts
@@ -48,6 +48,23 @@ test(function textDecoder2() {
   assertEqual(decoder.decode(fixture), "𝓽𝓮𝔁𝓽");
 });
 
+test(function textDecoderASCII() {
+  const fixture = new Uint8Array([0x89, 0x95, 0x9f, 0xbf]);
+  const decoder = new TextDecoder("ascii");
+  assertEqual(decoder.decode(fixture), "‰•Ÿ¿");
+});
+
+test(function textDecoderErrorEncoding() {
+  let didThrow = false;
+  try {
+    const decoder = new TextDecoder("foo");
+  } catch (e) {
+    didThrow = true;
+    assertEqual(e.message, "The encoding label provided ('foo') is invalid.");
+  }
+  assert(didThrow);
+});
+
 test(function textEncoder() {
   const fixture = "������";
   const encoder = new TextEncoder();
-- 
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