Add test for Buffer.byteLength

1 files changed, 7 insertions, 0 deletions

diff --git a/integration/bunjs-only-snippets/buffer.test.js b/integration/bunjs-only-snippets/buffer.test.js
index bd3462138..54c4c3943 100644
--- a/integration/bunjs-only-snippets/buffer.test.js
+++ b/integration/bunjs-only-snippets/buffer.test.js
@@ -44,9 +44,16 @@ it("Buffer", () => {
     gc();
     expect(Array.from(new Buffer(input)).join(",")).toBe(good[i].join(","));
     gc();
+    expect(Buffer.byteLength(input)).toBe(good[i].length);
   }
 });
 
+it("Buffer.byteLength", () => {
+  expect(Buffer.byteLength("😀😃😄😁😆😅😂🤣☺️😊😊😇")).toBe(
+    new TextEncoder().encode("😀😃😄😁😆😅😂🤣☺️😊😊😇").byteLength
+  );
+});
+
 it("Buffer.isBuffer", () => {
   expect(Buffer.isBuffer(new Buffer(1))).toBe(true);
   gc();