From bcabf31121f4fff4e124bfbe11588fe9f1711e07 Mon Sep 17 00:00:00 2001
From: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Date: Tue, 10 Jan 2023 18:48:55 -0800
Subject: Make `Buffer` mockable

---
 test/bun.js/buffer.test.js | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'test/bun.js/buffer.test.js')

diff --git a/test/bun.js/buffer.test.js b/test/bun.js/buffer.test.js
index 4c8603335..d263a80eb 100644
--- a/test/bun.js/buffer.test.js
+++ b/test/bun.js/buffer.test.js
@@ -673,3 +673,28 @@ it("Buffer.toString(base64)", () => {
     );
   }
 });
+
+it("Buffer can be mocked", () => {
+  function MockBuffer() {
+    const noop = function () {};
+    const res = Buffer.alloc(0);
+    for (const op in Buffer.prototype) {
+      if (typeof res[op] === "function") {
+        res[op] = noop;
+      }
+    }
+    return res;
+  }
+
+  const buf = MockBuffer();
+
+  expect(() => {
+    buf.write("hello world");
+    buf.writeUint16BE(0);
+    buf.writeUint32BE(0);
+    buf.writeBigInt64BE(0);
+    buf.writeBigUInt64BE(0);
+    buf.writeBigInt64LE(0);
+    buf.writeBigUInt64LE(0);
+  }).not.toThrow();
+});
-- 
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