fix(node): fix fs.write/fs.writeAll

node/_fs/_fs_write.js

@@ -1,5 +1,5 @@
 import { Buffer } from "../buffer.ts";
-import { writeAll, writeAllSync } from "../../streams/conversion.ts";
+import { validateInteger } from "../internal/validators.js";
 
 export function writeSync(fd, bufferLike, ...args) {
   const [buffer, pos] = bufferAndPos(bufferLike, args);
@@ -26,12 +26,31 @@ export function write(fd, bufferLike, ...args) {
   );
 }
 
+async function writeAll(fd, buf) {
+  let nwritten = 0;
+  while (nwritten < buf.length) {
+    nwritten += await Deno.write(fd, buf.subarray(nwritten));
+  }
+  return nwritten;
+}
+
+function writeAllSync(fd, buf) {
+  let nwritten = 0;
+  while (nwritten < buf.length) {
+    nwritten += Deno.writeSync(fd, buf.subarray(nwritten));
+  }
+  return nwritten;
+}
+
 function bufferAndPos(bufferLike, args) {
   if (typeof bufferLike === "string") {
     const [position, encoding] = args;
-    return [Buffer.from(bufferLike, encoding), position];
+    return [Buffer.from(bufferLike.buffer, encoding), position];
   }
 
   const [offset, length, position] = args;
-  return [Buffer.from(bufferLike, offset, length), position];
+  if (typeof offset === "number") {
+    validateInteger(offset, "offset", 0);
+  }
+  return [Buffer.from(bufferLike.buffer, offset, length), position];
 }

node/_tools/config.json

@@ -168,6 +168,7 @@
       "test-fs-rmdir-recursive-warns-on-file.js",
       "test-fs-rmdir-recursive.js",
       "test-fs-rmdir-type-check.js",
+      "test-fs-write-buffer.js",
       "test-fs-write-file-buffer.js",
       "test-fs-write-file-invalid-path.js",
       "test-fs-write-file-sync.js",

node/_tools/suites/parallel/test-fs-write-buffer.js

@@ -0,0 +1,172 @@
+// deno-fmt-ignore-file
+// deno-lint-ignore-file
+
+// Copyright Joyent and Node contributors. All rights reserved. MIT license.
+// Taken from Node 16.13.0
+// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
+
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+const common = require('../common');
+const assert = require('assert');
+const path = require('path');
+const fs = require('fs');
+const expected = Buffer.from('hello');
+
+const tmpdir = require('../common/tmpdir');
+tmpdir.refresh();
+
+// fs.write with all parameters provided:
+{
+  const filename = path.join(tmpdir.path, 'write1.txt');
+  fs.open(filename, 'w', 0o644, common.mustSucceed((fd) => {
+    const cb = common.mustSucceed((written) => {
+      assert.strictEqual(written, expected.length);
+      fs.closeSync(fd);
+
+      const found = fs.readFileSync(filename, 'utf8');
+      assert.strictEqual(found, expected.toString());
+    });
+
+    fs.write(fd, expected, 0, expected.length, null, cb);
+  }));
+}
+
+// fs.write with a buffer, without the length parameter:
+{
+  const filename = path.join(tmpdir.path, 'write2.txt');
+  fs.open(filename, 'w', 0o644, common.mustSucceed((fd) => {
+    const cb = common.mustSucceed((written) => {
+      assert.strictEqual(written, 2);
+      fs.closeSync(fd);
+
+      const found = fs.readFileSync(filename, 'utf8');
+      assert.strictEqual(found, 'lo');
+    });
+
+    fs.write(fd, Buffer.from('hello'), 3, cb);
+  }));
+}
+
+// fs.write with a buffer, without the offset and length parameters:
+{
+  const filename = path.join(tmpdir.path, 'write3.txt');
+  fs.open(filename, 'w', 0o644, common.mustSucceed((fd) => {
+    const cb = common.mustSucceed((written) => {
+      assert.strictEqual(written, expected.length);
+      fs.closeSync(fd);
+
+      const found = fs.readFileSync(filename, 'utf8');
+      assert.deepStrictEqual(expected.toString(), found);
+    });
+
+    fs.write(fd, expected, cb);
+  }));
+}
+
+// fs.write with the offset passed as undefined followed by the callback:
+{
+  const filename = path.join(tmpdir.path, 'write4.txt');
+  fs.open(filename, 'w', 0o644, common.mustSucceed((fd) => {
+    const cb = common.mustSucceed((written) => {
+      assert.strictEqual(written, expected.length);
+      fs.closeSync(fd);
+
+      const found = fs.readFileSync(filename, 'utf8');
+      assert.deepStrictEqual(expected.toString(), found);
+    });
+
+    fs.write(fd, expected, undefined, cb);
+  }));
+}
+
+// fs.write with offset and length passed as undefined followed by the callback:
+{
+  const filename = path.join(tmpdir.path, 'write5.txt');
+  fs.open(filename, 'w', 0o644, common.mustSucceed((fd) => {
+    const cb = common.mustSucceed((written) => {
+      assert.strictEqual(written, expected.length);
+      fs.closeSync(fd);
+
+      const found = fs.readFileSync(filename, 'utf8');
+      assert.strictEqual(found, expected.toString());
+    });
+
+    fs.write(fd, expected, undefined, undefined, cb);
+  }));
+}
+
+// fs.write with a Uint8Array, without the offset and length parameters:
+{
+  const filename = path.join(tmpdir.path, 'write6.txt');
+  fs.open(filename, 'w', 0o644, common.mustSucceed((fd) => {
+    const cb = common.mustSucceed((written) => {
+      assert.strictEqual(written, expected.length);
+      fs.closeSync(fd);
+
+      const found = fs.readFileSync(filename, 'utf8');
+      assert.strictEqual(found, expected.toString());
+    });
+
+    fs.write(fd, Uint8Array.from(expected), cb);
+  }));
+}
+
+// fs.write with invalid offset type
+{
+  const filename = path.join(tmpdir.path, 'write7.txt');
+  fs.open(filename, 'w', 0o644, common.mustSucceed((fd) => {
+    assert.throws(() => {
+      fs.write(fd,
+               Buffer.from('abcd'),
+               NaN,
+               expected.length,
+               0,
+               common.mustNotCall());
+    }, {
+      code: 'ERR_OUT_OF_RANGE',
+      name: 'RangeError',
+      message: 'The value of "offset" is out of range. ' +
+               'It must be an integer. Received NaN'
+    });
+
+    fs.closeSync(fd);
+  }));
+}
+
+// fs.write with a DataView, without the offset and length parameters:
+{
+  const filename = path.join(tmpdir.path, 'write8.txt');
+  fs.open(filename, 'w', 0o644, common.mustSucceed((fd) => {
+    const cb = common.mustSucceed((written) => {
+      assert.strictEqual(written, expected.length);
+      fs.closeSync(fd);
+
+      const found = fs.readFileSync(filename, 'utf8');
+      assert.strictEqual(found, expected.toString());
+    });
+
+    const uint8 = Uint8Array.from(expected);
+    fs.write(fd, new DataView(uint8.buffer), cb);
+  }));
+}