From 4d4908dde31316462acae5caec8dfcbbf7a244bd Mon Sep 17 00:00:00 2001
From: Alexandre Szymocha <alexandre@szymocha.com>
Date: Sat, 28 Dec 2019 14:48:36 +0100
Subject: Fix: allow reading into a 0-length array (#3329)

---
 cli/js/files_test.ts | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'cli/js/files_test.ts')

diff --git a/cli/js/files_test.ts b/cli/js/files_test.ts
index 2eaa3b9be..cb33f6947 100644
--- a/cli/js/files_test.ts
+++ b/cli/js/files_test.ts
@@ -118,6 +118,10 @@ testPerm(
     const filename = tempDir + "hello.txt";
     const file = await Deno.open(filename, "w+");
 
+    // reading into an empty buffer should return 0 immediately
+    const bytesRead = await file.read(new Uint8Array(0));
+    assert(bytesRead === 0);
+
     // reading file into null buffer should throw an error
     let err;
     try {
-- 
cgit v1.2.3