From bbeb30fc5e6fdb461cd219f95efcc5c52ed16f30 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=BF=B7=E6=B8=A1?= <justjavac@gmail.com>
Date: Wed, 1 May 2019 02:25:37 +0800
Subject: Make `atob` follow the spec (#2242)

---
 js/text_encoding_test.ts | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

(limited to 'js/text_encoding_test.ts')

diff --git a/js/text_encoding_test.ts b/js/text_encoding_test.ts
index 30a75f8d4..b5ce78a8f 100644
--- a/js/text_encoding_test.ts
+++ b/js/text_encoding_test.ts
@@ -13,6 +13,43 @@ test(function atobSuccess(): void {
   assertEquals(decoded, "hello world");
 });
 
+test(function atobWithAsciiWhitespace(): void {
+  const encodedList = [
+    " aGVsbG8gd29ybGQ=",
+    "  aGVsbG8gd29ybGQ=",
+    "aGVsbG8gd29ybGQ= ",
+    "aGVsbG8gd29ybGQ=\n",
+    "aGVsbG\t8gd29ybGQ=",
+    `aGVsbG\t8g
+                d29ybGQ=`
+  ];
+
+  for (let encoded of encodedList) {
+    let decoded = atob(encoded);
+    assertEquals(decoded, "hello world");
+  }
+});
+
+test(function atobThrows(): void {
+  let threw = false;
+  try {
+    atob("aGVsbG8gd29ybGQ==");
+  } catch (e) {
+    threw = true;
+  }
+  assert(threw);
+});
+
+test(function atobThrows2(): void {
+  let threw = false;
+  try {
+    atob("aGVsbG8gd29ybGQ===");
+  } catch (e) {
+    threw = true;
+  }
+  assert(threw);
+});
+
 test(function btoaFailed(): void {
   const text = "你好";
   let err;
-- 
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