Reorganize tests (#2332)

1 files changed, 0 insertions, 2563 deletions

diff --git a/test/bun.js/buffer.test.js b/test/bun.js/buffer.test.js
deleted file mode 100644
index b8fade4d2..000000000
--- a/test/bun.js/buffer.test.js
+++ /dev/null
@@ -1,2563 +0,0 @@
-import { describe, it, expect, beforeEach, afterEach, test } from "bun:test";
-import { gc } from "./gc";
-
-const BufferModule = await import("buffer");
-
-beforeEach(() => gc());
-afterEach(() => gc());
-
-function assert(a) {
-  expect(a).toBeTruthy();
-}
-
-Object.assign(assert, {
-  ok(a) {
-    expect(a).toBeTruthy();
-  },
-  deepStrictEqual(a, b) {
-    expect(b).toStrictEqual(a);
-  },
-  strictEqual(a, b) {
-    expect(a).toBe(b);
-  },
-  throws(a, b) {
-    expect(a).toThrow();
-  },
-});
-
-// https://github.com/oven-sh/bun/issues/2052
-it("Buffer global is settable", () => {
-  var prevBuffer = globalThis.Buffer;
-  globalThis.Buffer = 42;
-  expect(globalThis.Buffer).toBe(42);
-  globalThis.Buffer = prevBuffer;
-  expect(globalThis.Buffer).toBe(BufferModule.Buffer);
-  expect(globalThis.Buffer).toBe(prevBuffer);
-});
-
-it("Buffer.alloc", () => {
-  // Verify the maximum Uint8Array size. There is no concrete limit by spec. The
-  // internal limits should be updated if this fails.
-  assert.throws(() => new Uint8Array(2 ** 32 + 1), {
-    message: "Invalid typed array length: 4294967297",
-  });
-
-  const b = Buffer.allocUnsafe(1024);
-  assert.strictEqual(b.length, 1024);
-
-  b[0] = -1;
-  assert.strictEqual(b[0], 255);
-
-  for (let i = 0; i < 1024; i++) {
-    b[i] = i % 256;
-  }
-
-  for (let i = 0; i < 1024; i++) {
-    assert.strictEqual(i % 256, b[i]);
-  }
-
-  const c = Buffer.allocUnsafe(512);
-  assert.strictEqual(c.length, 512);
-
-  const d = Buffer.from([]);
-  assert.strictEqual(d.length, 0);
-
-  // Test offset properties
-  {
-    const b = Buffer.alloc(128);
-    assert.strictEqual(b.length, 128);
-    assert.strictEqual(b.byteOffset, 0);
-    assert.strictEqual(b.offset, 0);
-  }
-
-  // Test creating a Buffer from a Uint32Array
-  {
-    const ui32 = new Uint32Array(4).fill(42);
-    const e = Buffer.from(ui32);
-    for (const [index, value] of e.entries()) {
-      assert.strictEqual(value, ui32[index]);
-    }
-  }
-  // Test creating a Buffer from a Uint32Array (old constructor)
-  {
-    const ui32 = new Uint32Array(4).fill(42);
-    const e = Buffer(ui32);
-    for (const [key, value] of e.entries()) {
-      assert.deepStrictEqual(value, ui32[key]);
-    }
-  }
-
-  // Test invalid encoding for Buffer.toString
-  assert.throws(() => b.toString("invalid"), /Unknown encoding: invalid/);
-  // Invalid encoding for Buffer.write
-  assert.throws(() => b.write("test string", 0, 5, "invalid"), /Unknown encoding: invalid/);
-  // Unsupported arguments for Buffer.write
-  // assert.throws(() => b.write("test", "utf8", 0), {
-  // code: "ERR_INVALID_ARG_TYPE",
-  // });
-
-  // Try to create 0-length buffers. Should not throw.
-  Buffer.from("");
-  Buffer.from("", "ascii");
-  Buffer.from("", "latin1");
-  Buffer.alloc(0);
-  Buffer.allocUnsafe(0);
-  new Buffer("");
-  new Buffer("", "ascii");
-  new Buffer("", "latin1");
-  new Buffer("", "binary");
-  Buffer(0);
-
-  const outOfRangeError = {
-    code: "ERR_OUT_OF_RANGE",
-    name: "RangeError",
-  };
-
-  // Try to write a 0-length string beyond the end of b
-  // assert.throws(() => b.write("", 2048), outOfRangeError);
-
-  // // Throw when writing to negative offset
-  // assert.throws(() => b.write("a", -1), outOfRangeError);
-
-  // // Throw when writing past bounds from the pool
-  // assert.throws(() => b.write("a", 2048), outOfRangeError);
-
-  // // Throw when writing to negative offset
-  // assert.throws(() => b.write("a", -1), outOfRangeError);
-
-  // Try to copy 0 bytes worth of data into an empty buffer
-  b.copy(Buffer.alloc(0), 0, 0, 0);
-
-  // Try to copy 0 bytes past the end of the target buffer
-  b.copy(Buffer.alloc(0), 1, 1, 1);
-  b.copy(Buffer.alloc(1), 1, 1, 1);
-
-  // Try to copy 0 bytes from past the end of the source buffer
-  b.copy(Buffer.alloc(1), 0, 2048, 2048);
-
-  // Testing for smart defaults and ability to pass string values as offset
-  {
-    const writeTest = Buffer.from("abcdes");
-    writeTest.write("n", "ascii");
-    assert.throws(() => writeTest.write("o", "1", "ascii"), {
-      code: "ERR_INVALID_ARG_TYPE",
-    });
-    writeTest.write("o", 1, "ascii");
-    writeTest.write("d", 2, "ascii");
-    writeTest.write("e", 3, "ascii");
-    writeTest.write("j", 4, "ascii");
-    assert.strictEqual(writeTest.toString(), "nodejs");
-  }
-
-  // Offset points to the end of the buffer and does not throw.
-  // (see https://github.com/nodejs/node/issues/8127).
-  Buffer.alloc(1).write("", 1, 0);
-
-  // ASCII slice test
-  {
-    const asciiString = "hello world";
-
-    for (let i = 0; i < asciiString.length; i++) {
-      b[i] = asciiString.charCodeAt(i);
-    }
-    const asciiSlice = b.toString("ascii", 0, asciiString.length);
-    assert.strictEqual(asciiString, asciiSlice);
-  }
-
-  {
-    const asciiString = "hello world";
-    const offset = 100;
-
-    assert.strictEqual(asciiString.length, b.write(asciiString, offset, "ascii"));
-    const asciiSlice = b.toString("ascii", offset, offset + asciiString.length);
-    assert.strictEqual(asciiString, asciiSlice);
-  }
-
-  {
-    const asciiString = "hello world";
-    const offset = 100;
-
-    const sliceA = b.slice(offset, offset + asciiString.length);
-    const sliceB = b.slice(offset, offset + asciiString.length);
-    for (let i = 0; i < asciiString.length; i++) {
-      assert.strictEqual(sliceA[i], sliceB[i]);
-    }
-  }
-
-  // UTF-8 slice test
-  {
-    const utf8String = "¡hέlló wôrld!";
-    const offset = 100;
-
-    b.write(utf8String, 0, Buffer.byteLength(utf8String), "utf8");
-    let utf8Slice = b.toString("utf8", 0, Buffer.byteLength(utf8String));
-    assert.strictEqual(utf8String, utf8Slice);
-
-    assert.strictEqual(Buffer.byteLength(utf8String), b.write(utf8String, offset, "utf8"));
-    utf8Slice = b.toString("utf8", offset, offset + Buffer.byteLength(utf8String));
-    assert.strictEqual(utf8String, utf8Slice);
-
-    const sliceA = b.slice(offset, offset + Buffer.byteLength(utf8String));
-    const sliceB = b.slice(offset, offset + Buffer.byteLength(utf8String));
-    for (let i = 0; i < Buffer.byteLength(utf8String); i++) {
-      assert.strictEqual(sliceA[i], sliceB[i]);
-    }
-  }
-
-  {
-    const slice = b.slice(100, 150);
-    assert.strictEqual(slice.length, 50);
-    for (let i = 0; i < 50; i++) {
-      assert.strictEqual(b[100 + i], slice[i]);
-    }
-  }
-
-  {
-    // Make sure only top level parent propagates from allocPool
-    const b = Buffer.allocUnsafe(5);
-    const c = b.slice(0, 4);
-    const d = c.slice(0, 2);
-    assert.strictEqual(b.parent, c.parent);
-    assert.strictEqual(b.parent, d.parent);
-  }
-
-  {
-    // Also from a non-pooled instance
-    const b = Buffer.allocUnsafeSlow(5);
-    const c = b.slice(0, 4);
-    const d = c.slice(0, 2);
-    assert.strictEqual(c.parent, d.parent);
-  }
-
-  {
-    // Bug regression test
-    const testValue = "\u00F6\u65E5\u672C\u8A9E"; // ö日本語
-    const buffer = Buffer.allocUnsafe(32);
-    const size = buffer.write(testValue, 0, "utf8");
-    const slice = buffer.toString("utf8", 0, size);
-    assert.strictEqual(slice, testValue);
-  }
-
-  {
-    // Test triple  slice
-    const a = Buffer.allocUnsafe(8);
-    for (let i = 0; i < 8; i++) a[i] = i;
-    const b = a.slice(4, 8);
-    assert.strictEqual(b[0], 4);
-    assert.strictEqual(b[1], 5);
-    assert.strictEqual(b[2], 6);
-    assert.strictEqual(b[3], 7);
-    const c = b.slice(2, 4);
-    assert.strictEqual(c[0], 6);
-    assert.strictEqual(c[1], 7);
-  }
-
-  {
-    const d = Buffer.from([23, 42, 255]);
-    assert.strictEqual(d.length, 3);
-    assert.strictEqual(d[0], 23);
-    assert.strictEqual(d[1], 42);
-    assert.strictEqual(d[2], 255);
-    assert.deepStrictEqual(d, Buffer.from(d));
-  }
-
-  {
-    // Test for proper UTF-8 Encoding
-    const e = Buffer.from("über");
-    assert.deepStrictEqual(e, Buffer.from([195, 188, 98, 101, 114]));
-  }
-
-  {
-    // Test for proper ascii Encoding, length should be 4
-    const f = Buffer.from("über", "ascii");
-    assert.deepStrictEqual(f, Buffer.from([252, 98, 101, 114]));
-  }
-
-  ["ucs2", "ucs-2", "utf16le", "utf-16le"].forEach(encoding => {
-    {
-      // Test for proper UTF16LE encoding, length should be 8
-      const f = Buffer.from("über", encoding);
-      assert.deepStrictEqual(f, Buffer.from([252, 0, 98, 0, 101, 0, 114, 0]));
-    }
-
-    {
-      // Length should be 12
-      const f = Buffer.from("привет", encoding);
-      assert.deepStrictEqual(f, Buffer.from([63, 4, 64, 4, 56, 4, 50, 4, 53, 4, 66, 4]));
-      assert.strictEqual(f.toString(encoding), "привет");
-    }
-
-    {
-      const f = Buffer.from([0, 0, 0, 0, 0]);
-      assert.strictEqual(f.length, 5);
-      const size = f.write("あいうえお", encoding);
-      assert.strictEqual(size, 4);
-      assert.deepStrictEqual(f, Buffer.from([0x42, 0x30, 0x44, 0x30, 0x00]));
-    }
-  });
-
-  {
-    const f = Buffer.from("\uD83D\uDC4D", "utf-16le"); // THUMBS UP SIGN (U+1F44D)
-    assert.strictEqual(f.length, 4);
-    assert.deepStrictEqual(f, Buffer.from("3DD84DDC", "hex"));
-  }
-
-  // Test construction from arrayish object
-  {
-    const arrayIsh = { 0: 0, 1: 1, 2: 2, 3: 3, length: 4 };
-    let g = Buffer.from(arrayIsh);
-    assert.deepStrictEqual(g, Buffer.from([0, 1, 2, 3]));
-    const strArrayIsh = { 0: "0", 1: "1", 2: "2", 3: "3", length: 4 };
-    g = Buffer.from(strArrayIsh);
-    assert.deepStrictEqual(g, Buffer.from([0, 1, 2, 3]));
-  }
-
-  //
-  // Test toString('base64')
-  //
-  assert.strictEqual(Buffer.from("Man").toString("base64"), "TWFu");
-  assert.strictEqual(Buffer.from("Woman").toString("base64"), "V29tYW4=");
-
-  //
-  // Test toString('base64url')
-  //
-  assert.strictEqual(Buffer.from("Man").toString("base64url"), "TWFu");
-  assert.strictEqual(Buffer.from("Woman").toString("base64url"), "V29tYW4");
-
-  {
-    // Test that regular and URL-safe base64 both work both ways
-    const expected = [0xff, 0xff, 0xbe, 0xff, 0xef, 0xbf, 0xfb, 0xef, 0xff];
-    assert.deepStrictEqual(Buffer.from("//++/++/++//", "base64"), Buffer.from(expected));
-    assert.deepStrictEqual(Buffer.from("__--_--_--__", "base64"), Buffer.from(expected));
-    assert.deepStrictEqual(Buffer.from("//++/++/++//", "base64url"), Buffer.from(expected));
-    assert.deepStrictEqual(Buffer.from("__--_--_--__", "base64url"), Buffer.from(expected));
-  }
-
-  const base64flavors = ["base64", "base64url"];
-
-  {
-    // Test that regular and URL-safe base64 both work both ways with padding
-    const expected = [0xff, 0xff, 0xbe, 0xff, 0xef, 0xbf, 0xfb, 0xef, 0xff, 0xfb];
-    assert.deepStrictEqual(Buffer.from("//++/++/++//+w==", "base64"), Buffer.from(expected));
-    assert.deepStrictEqual(Buffer.from("//++/++/++//+w==", "base64"), Buffer.from(expected));
-    assert.deepStrictEqual(Buffer.from("//++/++/++//+w==", "base64url"), Buffer.from(expected));
-    assert.deepStrictEqual(Buffer.from("//++/++/++//+w==", "base64url"), Buffer.from(expected));
-  }
-
-  {
-    // big example
-    const quote =
-      "Man is distinguished, not only by his reason, but by this " +
-      "singular passion from other animals, which is a lust " +
-      "of the mind, that by a perseverance of delight in the " +
-      "continued and indefatigable generation of knowledge, " +
-      "exceeds the short vehemence of any carnal pleasure.";
-    const expected =
-      "TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb" +
-      "24sIGJ1dCBieSB0aGlzIHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlci" +
-      "BhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2YgdGhlIG1pbmQsIHRoYXQ" +
-      "gYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu" +
-      "dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZ" +
-      "GdlLCBleGNlZWRzIHRoZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm" +
-      "5hbCBwbGVhc3VyZS4=";
-    assert.strictEqual(Buffer.from(quote).toString("base64"), expected);
-    assert.strictEqual(
-      Buffer.from(quote).toString("base64url"),
-      expected.replaceAll("+", "-").replaceAll("/", "_").replaceAll("=", ""),
-    );
-
-    base64flavors.forEach(encoding => {
-      let b = Buffer.allocUnsafe(1024);
-      let bytesWritten = b.write(expected, 0, encoding);
-      assert.strictEqual(quote.length, bytesWritten);
-      assert.strictEqual(quote, b.toString("ascii", 0, quote.length));
-
-      // Check that the base64 decoder ignores whitespace
-      const expectedWhite =
-        `${expected.slice(0, 60)} \n` +
-        `${expected.slice(60, 120)} \n` +
-        `${expected.slice(120, 180)} \n` +
-        `${expected.slice(180, 240)} \n` +
-        `${expected.slice(240, 300)}\n` +
-        `${expected.slice(300, 360)}\n`;
-      b = Buffer.allocUnsafe(1024);
-      bytesWritten = b.write(expectedWhite, 0, encoding);
-      assert.strictEqual(quote.length, bytesWritten);
-      assert.strictEqual(quote, b.toString("ascii", 0, quote.length));
-
-      // Check that the base64 decoder on the constructor works
-      // even in the presence of whitespace.
-      b = Buffer.from(expectedWhite, encoding);
-      assert.strictEqual(quote.length, b.length);
-      assert.strictEqual(quote, b.toString("ascii", 0, quote.length));
-
-      // Check that the base64 decoder ignores illegal chars
-      const expectedIllegal =
-        expected.slice(0, 60) +
-        " \x80" +
-        expected.slice(60, 120) +
-        " \xff" +
-        expected.slice(120, 180) +
-        " \x00" +
-        expected.slice(180, 240) +
-        " \x98" +
-        expected.slice(240, 300) +
-        "\x03" +
-        expected.slice(300, 360);
-      b = Buffer.from(expectedIllegal, encoding);
-      assert.strictEqual(quote.length, b.length);
-      assert.strictEqual(quote, b.toString("ascii", 0, quote.length));
-    });
-  }
-
-  base64flavors.forEach(encoding => {
-    assert.strictEqual(Buffer.from("", encoding).toString(), "");
-    assert.strictEqual(Buffer.from("K", encoding).toString(), "");
-
-    // multiple-of-4 with padding
-    assert.strictEqual(Buffer.from("Kg==", encoding).toString(), "*");
-    assert.strictEqual(Buffer.from("Kio=", encoding).toString(), "*".repeat(2));
-    assert.strictEqual(Buffer.from("Kioq", encoding).toString(), "*".repeat(3));
-    assert.strictEqual(Buffer.from("KioqKg==", encoding).toString(), "*".repeat(4));
-    assert.strictEqual(Buffer.from("KioqKio=", encoding).toString(), "*".repeat(5));
-    assert.strictEqual(Buffer.from("KioqKioq", encoding).toString(), "*".repeat(6));
-    assert.strictEqual(Buffer.from("KioqKioqKg==", encoding).toString(), "*".repeat(7));
-    assert.strictEqual(Buffer.from("KioqKioqKio=", encoding).toString(), "*".repeat(8));
-    assert.strictEqual(Buffer.from("KioqKioqKioq", encoding).toString(), "*".repeat(9));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKg==", encoding).toString(), "*".repeat(10));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKio=", encoding).toString(), "*".repeat(11));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioq", encoding).toString(), "*".repeat(12));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKg==", encoding).toString(), "*".repeat(13));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKio=", encoding).toString(), "*".repeat(14));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKioq", encoding).toString(), "*".repeat(15));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKioqKg==", encoding).toString(), "*".repeat(16));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKioqKio=", encoding).toString(), "*".repeat(17));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKioqKioq", encoding).toString(), "*".repeat(18));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKioqKioqKg==", encoding).toString(), "*".repeat(19));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKioqKioqKio=", encoding).toString(), "*".repeat(20));
-
-    // No padding, not a multiple of 4
-    assert.strictEqual(Buffer.from("Kg", encoding).toString(), "*");
-    assert.strictEqual(Buffer.from("Kio", encoding).toString(), "*".repeat(2));
-    assert.strictEqual(Buffer.from("KioqKg", encoding).toString(), "*".repeat(4));
-    assert.strictEqual(Buffer.from("KioqKio", encoding).toString(), "*".repeat(5));
-    assert.strictEqual(Buffer.from("KioqKioqKg", encoding).toString(), "*".repeat(7));
-    assert.strictEqual(Buffer.from("KioqKioqKio", encoding).toString(), "*".repeat(8));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKg", encoding).toString(), "*".repeat(10));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKio", encoding).toString(), "*".repeat(11));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKg", encoding).toString(), "*".repeat(13));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKio", encoding).toString(), "*".repeat(14));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKioqKg", encoding).toString(), "*".repeat(16));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKioqKio", encoding).toString(), "*".repeat(17));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKioqKioqKg", encoding).toString(), "*".repeat(19));
-    assert.strictEqual(Buffer.from("KioqKioqKioqKioqKioqKioqKio", encoding).toString(), "*".repeat(20));
-  });
-
-  // Handle padding graciously, multiple-of-4 or not
-  assert.strictEqual(Buffer.from("72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw==", "base64").length, 32);
-  assert.strictEqual(Buffer.from("72INjkR5fchcxk9-VgdGPFJDxUBFR5_rMFsghgxADiw==", "base64url").length, 32);
-  assert.strictEqual(Buffer.from("72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw=", "base64").length, 32);
-  assert.strictEqual(Buffer.from("72INjkR5fchcxk9-VgdGPFJDxUBFR5_rMFsghgxADiw=", "base64url").length, 32);
-  assert.strictEqual(Buffer.from("72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw", "base64").length, 32);
-  assert.strictEqual(Buffer.from("72INjkR5fchcxk9-VgdGPFJDxUBFR5_rMFsghgxADiw", "base64url").length, 32);
-  assert.strictEqual(Buffer.from("w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg==", "base64").length, 31);
-  assert.strictEqual(Buffer.from("w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg==", "base64url").length, 31);
-  assert.strictEqual(Buffer.from("w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg=", "base64").length, 31);
-  assert.strictEqual(Buffer.from("w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg=", "base64url").length, 31);
-  assert.strictEqual(Buffer.from("w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg", "base64").length, 31);
-  assert.strictEqual(Buffer.from("w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg", "base64url").length, 31);
-
-  {
-    // This string encodes single '.' character in UTF-16
-    const dot = Buffer.from("//4uAA==", "base64");
-    assert.strictEqual(dot[0], 0xff);
-    assert.strictEqual(dot[1], 0xfe);
-    assert.strictEqual(dot[2], 0x2e);
-    assert.strictEqual(dot[3], 0x00);
-    assert.strictEqual(dot.toString("base64"), "//4uAA==");
-  }
-
-  {
-    // This string encodes single '.' character in UTF-16
-    const dot = Buffer.from("//4uAA", "base64url");
-    assert.strictEqual(dot[0], 0xff);
-    assert.strictEqual(dot[1], 0xfe);
-    assert.strictEqual(dot[2], 0x2e);
-    assert.strictEqual(dot[3], 0x00);
-    assert.strictEqual(dot.toString("base64url"), "__4uAA");
-  }
-
-  {
-    // Writing base64 at a position > 0 should not mangle the result.
-    //
-    // https://github.com/joyent/node/issues/402
-    const segments = ["TWFkbmVzcz8h", "IFRoaXM=", "IGlz", "IG5vZGUuanMh"];
-    const b = Buffer.allocUnsafe(64);
-    let pos = 0;
-
-    for (let i = 0; i < segments.length; ++i) {
-      pos += b.write(segments[i], pos, "base64");
-    }
-    assert.strictEqual(b.toString("latin1", 0, pos), "Madness?! This is node.js!");
-  }
-
-  {
-    // Writing base64url at a position > 0 should not mangle the result.
-    //
-    // https://github.com/joyent/node/issues/402
-    const segments = ["TWFkbmVzcz8h", "IFRoaXM", "IGlz", "IG5vZGUuanMh"];
-    const b = Buffer.allocUnsafe(64);
-    let pos = 0;
-
-    for (let i = 0; i < segments.length; ++i) {
-      pos += b.write(segments[i], pos, "base64url");
-    }
-    assert.strictEqual(b.toString("latin1", 0, pos), "Madness?! This is node.js!");
-  }
-
-  // Regression test for https://github.com/nodejs/node/issues/3496.
-  assert.strictEqual(Buffer.from("=bad".repeat(1e4), "base64").length, 0);
-
-  // Regression test for https://github.com/nodejs/node/issues/11987.
-  assert.deepStrictEqual(Buffer.from("w0  ", "base64"), Buffer.from("w0", "base64"));
-
-  // Regression test for https://github.com/nodejs/node/issues/13657.
-  assert.deepStrictEqual(Buffer.from(" YWJvcnVtLg", "base64"), Buffer.from("YWJvcnVtLg", "base64"));
-
-  {
-    // Creating buffers larger than pool size.
-    const l = Buffer.poolSize + 5;
-    const s = "h".repeat(l);
-    const b = Buffer.from(s);
-
-    for (let i = 0; i < l; i++) {
-      assert.strictEqual(b[i], "h".charCodeAt(0));
-    }
-
-    const sb = b.toString();
-    assert.strictEqual(sb.length, s.length);
-    assert.strictEqual(sb, s);
-  }
-
-  {
-    // test hex toString
-    const hexb = Buffer.allocUnsafe(256);
-    for (let i = 0; i < 256; i++) {
-      hexb[i] = i;
-    }
-    const hexStr = hexb.toString("hex");
-    assert.strictEqual(
-      hexStr,
-      "000102030405060708090a0b0c0d0e0f" +
-        "101112131415161718191a1b1c1d1e1f" +
-        "202122232425262728292a2b2c2d2e2f" +
-        "303132333435363738393a3b3c3d3e3f" +
-        "404142434445464748494a4b4c4d4e4f" +
-        "505152535455565758595a5b5c5d5e5f" +
-        "606162636465666768696a6b6c6d6e6f" +
-        "707172737475767778797a7b7c7d7e7f" +
-        "808182838485868788898a8b8c8d8e8f" +
-        "909192939495969798999a9b9c9d9e9f" +
-        "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf" +
-        "b0b1b2b3b4b5b6b7b8b9babbbcbdbebf" +
-        "c0c1c2c3c4c5c6c7c8c9cacbcccdcecf" +
-        "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf" +
-        "e0e1e2e3e4e5e6e7e8e9eaebecedeeef" +
-        "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
-    );
-
-    const hexb2 = Buffer.from(hexStr, "hex");
-    for (let i = 0; i < 256; i++) {
-      assert.strictEqual(hexb2[i], hexb[i]);
-    }
-  }
-
-  // Test single hex character is discarded.
-  assert.strictEqual(Buffer.from("A", "hex").length, 0);
-
-  // Test that if a trailing character is discarded, rest of string is processed.
-  assert.deepStrictEqual(Buffer.from("Abx", "hex"), Buffer.from("Ab", "hex"));
-
-  // Test single base64 char encodes as 0.
-  assert.strictEqual(Buffer.from("A", "base64").length, 0);
-
-  {
-    // Test an invalid slice end.
-    const b = Buffer.from([1, 2, 3, 4, 5]);
-    const b2 = b.toString("hex", 1, 10000);
-    const b3 = b.toString("hex", 1, 5);
-    const b4 = b.toString("hex", 1);
-    assert.strictEqual(b2, b3);
-    assert.strictEqual(b2, b4);
-  }
-
-  function buildBuffer(data) {
-    if (Array.isArray(data)) {
-      const buffer = Buffer.allocUnsafe(data.length);
-      data.forEach((v, k) => (buffer[k] = v));
-      return buffer;
-    }
-    return null;
-  }
-
-  const x = buildBuffer([0x81, 0xa3, 0x66, 0x6f, 0x6f, 0xa3, 0x62, 0x61, 0x72]);
-
-  // assert.strictEqual(x.inspect(), "<Buffer 81 a3 66 6f 6f a3 62 61 72>");
-
-  {
-    const z = x.slice(4);
-    assert.strictEqual(z.length, 5);
-    assert.strictEqual(z[0], 0x6f);
-    assert.strictEqual(z[1], 0xa3);
-    assert.strictEqual(z[2], 0x62);
-    assert.strictEqual(z[3], 0x61);
-    assert.strictEqual(z[4], 0x72);
-  }
-
-  {
-    const z = x.slice(0);
-    assert.strictEqual(z.length, x.length);
-  }
-
-  {
-    const z = x.slice(0, 4);
-    assert.strictEqual(z.length, 4);
-    assert.strictEqual(z[0], 0x81);
-    assert.strictEqual(z[1], 0xa3);
-  }
-
-  {
-    const z = x.slice(0, 9);
-    assert.strictEqual(z.length, 9);
-  }
-
-  {
-    const z = x.slice(1, 4);
-    assert.strictEqual(z.length, 3);
-    assert.strictEqual(z[0], 0xa3);
-  }
-
-  {
-    const z = x.slice(2, 4);
-    assert.strictEqual(z.length, 2);
-    assert.strictEqual(z[0], 0x66);
-    assert.strictEqual(z[1], 0x6f);
-  }
-
-  ["ucs2", "ucs-2", "utf16le", "utf-16le"].forEach(encoding => {
-    const b = Buffer.allocUnsafe(10);
-    b.write("あいうえお", encoding);
-    assert.strictEqual(b.toString(encoding), "あいうえお");
-  });
-
-  ["ucs2", "ucs-2", "utf16le", "utf-16le"].forEach(encoding => {
-    const b = Buffer.allocUnsafe(11);
-    b.write("あいうえお", 1, encoding);
-    assert.strictEqual(b.toString(encoding, 1), "あいうえお");
-  });
-
-  {
-    // latin1 encoding should write only one byte per character.
-    const b = Buffer.from([0xde, 0xad, 0xbe, 0xef]);
-    let s = String.fromCharCode(0xffff);
-    b.write(s, 0, "latin1");
-    assert.strictEqual(b[0], 0xff);
-    assert.strictEqual(b[1], 0xad);
-    assert.strictEqual(b[2], 0xbe);
-    assert.strictEqual(b[3], 0xef);
-    s = String.fromCharCode(0xaaee);
-    b.write(s, 0, "latin1");
-    assert.strictEqual(b[0], 0xee);
-    assert.strictEqual(b[1], 0xad);
-    assert.strictEqual(b[2], 0xbe);
-    assert.strictEqual(b[3], 0xef);
-  }
-
-  {
-    // Binary encoding should write only one byte per character.
-    const b = Buffer.from([0xde, 0xad, 0xbe, 0xef]);
-    let s = String.fromCharCode(0xffff);
-    b.write(s, 0, "latin1");
-    assert.strictEqual(b[0], 0xff);
-    assert.strictEqual(b[1], 0xad);
-    assert.strictEqual(b[2], 0xbe);
-    assert.strictEqual(b[3], 0xef);
-    s = String.fromCharCode(0xaaee);
-    b.write(s, 0, "latin1");
-    assert.strictEqual(b[0], 0xee);
-    assert.strictEqual(b[1], 0xad);
-    assert.strictEqual(b[2], 0xbe);
-    assert.strictEqual(b[3], 0xef);
-  }
-
-  {
-    // https://github.com/nodejs/node-v0.x-archive/pull/1210
-    // Test UTF-8 string includes null character
-    let buf = Buffer.from("\0");
-    assert.strictEqual(buf.length, 1);
-    buf = Buffer.from("\0\0");
-    assert.strictEqual(buf.length, 2);
-  }
-
-  {
-    const buf = Buffer.allocUnsafe(2);
-    assert.strictEqual(buf.write(""), 0); // 0bytes
-    assert.strictEqual(buf.write("\0"), 1); // 1byte (v8 adds null terminator)
-    assert.strictEqual(buf.write("a\0"), 2); // 1byte * 2
-    assert.strictEqual(buf.write("あ"), 0); // 3bytes
-    assert.strictEqual(buf.write("\0あ"), 1); // 1byte + 3bytes
-    assert.strictEqual(buf.write("\0\0あ"), 2); // 1byte * 2 + 3bytes
-  }
-
-  {
-    const buf = Buffer.allocUnsafe(10);
-    assert.strictEqual(buf.write("あいう"), 9); // 3bytes * 3 (v8 adds null term.)
-    assert.strictEqual(buf.write("あいう\0"), 10); // 3bytes * 3 + 1byte
-  }
-
-  {
-    // https://github.com/nodejs/node-v0.x-archive/issues/243
-    // Test write() with maxLength
-    const buf = Buffer.allocUnsafe(4);
-    buf.fill(0xff);
-    assert.strictEqual(buf.write("abcd", 1, 2, "utf8"), 2);
-    assert.strictEqual(buf[0], 0xff);
-    assert.strictEqual(buf[1], 0x61);
-    assert.strictEqual(buf[2], 0x62);
-    assert.strictEqual(buf[3], 0xff);
-
-    buf.fill(0xff);
-    assert.strictEqual(buf.write("abcd", 1, 4), 3);
-    assert.strictEqual(buf[0], 0xff);
-    assert.strictEqual(buf[1], 0x61);
-    assert.strictEqual(buf[2], 0x62);
-    assert.strictEqual(buf[3], 0x63);
-
-    buf.fill(0xff);
-    assert.strictEqual(buf.write("abcd", 1, 2, "utf8"), 2);
-    assert.strictEqual(buf[0], 0xff);
-    assert.strictEqual(buf[1], 0x61);
-    assert.strictEqual(buf[2], 0x62);
-    assert.strictEqual(buf[3], 0xff);
-
-    buf.fill(0xff);
-    assert.strictEqual(buf.write("abcdef", 1, 2, "hex"), 2);
-    assert.strictEqual(buf[0], 0xff);
-    assert.strictEqual(buf[1], 0xab);
-    assert.strictEqual(buf[2], 0xcd);
-    assert.strictEqual(buf[3], 0xff);
-
-    ["ucs2", "ucs-2", "utf16le", "utf-16le"].forEach(encoding => {
-      buf.fill(0xff);
-      assert.strictEqual(buf.write("abcd", 0, 2, encoding), 2);
-      assert.strictEqual(buf[0], 0x61);
-      assert.strictEqual(buf[1], 0x00);
-      assert.strictEqual(buf[2], 0xff);
-      assert.strictEqual(buf[3], 0xff);
-    });
-  }
-
-  {
-    // Test offset returns are correct
-    const b = Buffer.allocUnsafe(16);
-    assert.strictEqual(b.writeUInt32LE(0, 0), 4);
-    assert.strictEqual(b.writeUInt16LE(0, 4), 6);
-    assert.strictEqual(b.writeUInt8(0, 6), 7);
-    assert.strictEqual(b.writeInt8(0, 7), 8);
-    assert.strictEqual(b.writeDoubleLE(0, 8), 16);
-  }
-
-  {
-    // Test unmatched surrogates not producing invalid utf8 output
-    // ef bf bd = utf-8 representation of unicode replacement character
-    // see https://codereview.chromium.org/121173009/
-    let buf = Buffer.from("ab\ud800cd", "utf8");
-    assert.strictEqual(buf[0], 0x61);
-    assert.strictEqual(buf[1], 0x62);
-    assert.strictEqual(buf[2], 0xef);
-    assert.strictEqual(buf[3], 0xbf);
-    assert.strictEqual(buf[4], 0xbd);
-    assert.strictEqual(buf[5], 0x63);
-    assert.strictEqual(buf[6], 0x64);
-
-    buf = Buffer.from("abcd\ud800", "utf8");
-    expect(buf[0]).toBe(0x61);
-    expect(buf[1]).toBe(0x62);
-    expect(buf[2]).toBe(0x63);
-    expect(buf[3]).toBe(0x64);
-    expect(buf[4]).toBe(0xef);
-    expect(buf[5]).toBe(0xbf);
-    expect(buf[6]).toBe(0xbd);
-
-    buf = Buffer.from("\ud800abcd", "utf8");
-    expect(buf[0]).toBe(0xef);
-    expect(buf[1]).toBe(0xbf);
-    expect(buf[2]).toBe(0xbd);
-    expect(buf[3]).toBe(0x61);
-    expect(buf[4]).toBe(0x62);
-    expect(buf[5]).toBe(0x63);
-    expect(buf[6]).toBe(0x64);
-  }
-
-  {
-    // Test for buffer overrun
-    const buf = Buffer.from([0, 0, 0, 0, 0]); // length: 5
-    const sub = buf.slice(0, 4); // length: 4
-    assert.strictEqual(sub.write("12345", "latin1"), 4);
-    assert.strictEqual(buf[4], 0);
-    assert.strictEqual(sub.write("12345", "binary"), 4);
-    assert.strictEqual(buf[4], 0);
-  }
-
-  {
-    // Test alloc with fill option
-    const buf = Buffer.alloc(5, "800A", "hex");
-    assert.strictEqual(buf[0], 128);
-    assert.strictEqual(buf[1], 10);
-    assert.strictEqual(buf[2], 128);
-    assert.strictEqual(buf[3], 10);
-    assert.strictEqual(buf[4], 128);
-  }
-
-  // Check for fractional length args, junk length args, etc.
-  // https://github.com/joyent/node/issues/1758
-
-  // Call .fill() first, stops valgrind warning about uninitialized memory reads.
-  Buffer.allocUnsafe(3.3).fill().toString();
-  // Throws bad argument error in commit 43cb4ec
-  Buffer.alloc(3.3).fill().toString();
-  assert.strictEqual(Buffer.allocUnsafe(3.3).length, 3);
-  assert.strictEqual(Buffer.from({ length: 3.3 }).length, 3);
-  assert.strictEqual(Buffer.from({ length: "BAM" }).length, 0);
-
-  // Make sure that strings are not coerced to numbers.
-  assert.strictEqual(Buffer.from("99").length, 2);
-  assert.strictEqual(Buffer.from("13.37").length, 5);
-
-  // Ensure that the length argument is respected.
-  ["ascii", "utf8", "hex", "base64", "latin1", "binary"].forEach(enc => {
-    assert.strictEqual(Buffer.allocUnsafe(1).write("aaaaaa", 0, 1, enc), 1);
-  });
-
-  {
-    // Regression test, guard against buffer overrun in the base64 decoder.
-    const a = Buffer.allocUnsafe(3);
-    const b = Buffer.from("xxx");
-    a.write("aaaaaaaa", "base64");
-    assert.strictEqual(b.toString(), "xxx");
-  }
-
-  // issue GH-3416
-  Buffer.from(Buffer.allocUnsafe(0), 0, 0);
-
-  // issue GH-5587
-  assert.throws(() => Buffer.alloc(8).writeFloatLE(0, 5), outOfRangeError);
-  assert.throws(() => Buffer.alloc(16).writeDoubleLE(0, 9), outOfRangeError);
-
-  // Attempt to overflow buffers, similar to previous bug in array buffers
-  assert.throws(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, 0xffffffff), outOfRangeError);
-  assert.throws(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, 0xffffffff), outOfRangeError);
-
-  // Ensure negative values can't get past offset
-  assert.throws(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, -1), outOfRangeError);
-  assert.throws(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, -1), outOfRangeError);
-
-  // Test for common write(U)IntLE/BE
-  {
-    let buf = Buffer.allocUnsafe(3);
-    buf.writeUIntLE(0x123456, 0, 3);
-    assert.deepStrictEqual(buf.toJSON().data, [0x56, 0x34, 0x12]);
-    assert.strictEqual(buf.readUIntLE(0, 3), 0x123456);
-
-    buf.fill(0xff);
-    buf.writeUIntBE(0x123456, 0, 3);
-    assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56]);
-    assert.strictEqual(buf.readUIntBE(0, 3), 0x123456);
-
-    buf.fill(0xff);
-    buf.writeIntLE(0x123456, 0, 3);
-    assert.deepStrictEqual(buf.toJSON().data, [0x56, 0x34, 0x12]);
-    assert.strictEqual(buf.readIntLE(0, 3), 0x123456);
-
-    buf.fill(0xff);
-    buf.writeIntBE(0x123456, 0, 3);
-    assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56]);
-    assert.strictEqual(buf.readIntBE(0, 3), 0x123456);
-
-    buf.fill(0xff);
-    buf.writeIntLE(-0x123456, 0, 3);
-    assert.deepStrictEqual(buf.toJSON().data, [0xaa, 0xcb, 0xed]);
-    assert.strictEqual(buf.readIntLE(0, 3), -0x123456);
-
-    buf.fill(0xff);
-    buf.writeIntBE(-0x123456, 0, 3);
-    assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcb, 0xaa]);
-    assert.strictEqual(buf.readIntBE(0, 3), -0x123456);
-
-    buf.fill(0xff);
-    buf.writeIntLE(-0x123400, 0, 3);
-    assert.deepStrictEqual(buf.toJSON().data, [0x00, 0xcc, 0xed]);
-    assert.strictEqual(buf.readIntLE(0, 3), -0x123400);
-
-    buf.fill(0xff);
-    buf.writeIntBE(-0x123400, 0, 3);
-    assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcc, 0x00]);
-    assert.strictEqual(buf.readIntBE(0, 3), -0x123400);
-
-    buf.fill(0xff);
-    buf.writeIntLE(-0x120000, 0, 3);
-    assert.deepStrictEqual(buf.toJSON().data, [0x00, 0x00, 0xee]);
-    assert.strictEqual(buf.readIntLE(0, 3), -0x120000);
-
-    buf.fill(0xff);
-    buf.writeIntBE(-0x120000, 0, 3);
-    assert.deepStrictEqual(buf.toJSON().data, [0xee, 0x00, 0x00]);
-    assert.strictEqual(buf.readIntBE(0, 3), -0x120000);
-
-    buf = Buffer.allocUnsafe(5);
-    buf.writeUIntLE(0x1234567890, 0, 5);
-    assert.deepStrictEqual(buf.toJSON().data, [0x90, 0x78, 0x56, 0x34, 0x12]);
-    assert.strictEqual(buf.readUIntLE(0, 5), 0x1234567890);
-
-    buf.fill(0xff);
-    buf.writeUIntBE(0x1234567890, 0, 5);
-    assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56, 0x78, 0x90]);
-    assert.strictEqual(buf.readUIntBE(0, 5), 0x1234567890);
-
-    buf.fill(0xff);
-    buf.writeIntLE(0x1234567890, 0, 5);
-    assert.deepStrictEqual(buf.toJSON().data, [0x90, 0x78, 0x56, 0x34, 0x12]);
-    assert.strictEqual(buf.readIntLE(0, 5), 0x1234567890);
-
-    buf.fill(0xff);
-    buf.writeIntBE(0x1234567890, 0, 5);
-    assert.deepStrictEqual(buf.toJSON().data, [0x12, 0x34, 0x56, 0x78, 0x90]);
-    assert.strictEqual(buf.readIntBE(0, 5), 0x1234567890);
-
-    buf.fill(0xff);
-    buf.writeIntLE(-0x1234567890, 0, 5);
-    assert.deepStrictEqual(buf.toJSON().data, [0x70, 0x87, 0xa9, 0xcb, 0xed]);
-    assert.strictEqual(buf.readIntLE(0, 5), -0x1234567890);
-
-    buf.fill(0xff);
-    buf.writeIntBE(-0x1234567890, 0, 5);
-    assert.deepStrictEqual(buf.toJSON().data, [0xed, 0xcb, 0xa9, 0x87, 0x70]);
-    assert.strictEqual(buf.readIntBE(0, 5), -0x1234567890);
-
-    buf.fill(0xff);
-    buf.writeIntLE(-0x0012000000, 0, 5);
-    assert.deepStrictEqual(buf.toJSON().data, [0x00, 0x00, 0x00, 0xee, 0xff]);
-    assert.strictEqual(buf.readIntLE(0, 5), -0x0012000000);
-
-    buf.fill(0xff);
-    buf.writeIntBE(-0x0012000000, 0, 5);
-    assert.deepStrictEqual(buf.toJSON().data, [0xff, 0xee, 0x00, 0x00, 0x00]);
-    assert.strictEqual(buf.readIntBE(0, 5), -0x0012000000);
-  }
-
-  // Regression test for https://github.com/nodejs/node-v0.x-archive/issues/5482:
-  // should throw but not assert in C++ land.
-  assert.throws(() => Buffer.from("", "buffer"), {
-    code: "ERR_UNKNOWN_ENCODING",
-    name: "TypeError",
-    message: "Unknown encoding: buffer",
-  });
-
-  // Regression test for https://github.com/nodejs/node-v0.x-archive/issues/6111.
-  // Constructing a buffer from another buffer should a) work, and b) not corrupt
-  // the source buffer.
-  {
-    const a = [...Array(128).keys()]; // [0, 1, 2, 3, ... 126, 127]
-    const b = Buffer.from(a);
-    const c = Buffer.from(b);
-    assert.strictEqual(b.length, a.length);
-    assert.strictEqual(c.length, a.length);
-    for (let i = 0, k = a.length; i < k; ++i) {
-      assert.strictEqual(a[i], i);
-      assert.strictEqual(b[i], i);
-      assert.strictEqual(c[i], i);
-    }
-  }
-
-  // if (common.hasCrypto) {
-  // eslint-disable-line node-core/crypto-check
-  // Test truncation after decode
-  const crypto = require("crypto");
-
-  const b1 = Buffer.from("YW55=======", "base64");
-  const b2 = Buffer.from("YW55", "base64");
-
-  assert.strictEqual(
-    crypto.createHash("sha1").update(b1).digest("hex"),
-    crypto.createHash("sha1").update(b2).digest("hex"),
-  );
-  // } else {
-  //   common.printSkipMessage("missing crypto");
-  // }
-
-  const ps = Buffer.poolSize;
-  Buffer.poolSize = 0;
-  assert(Buffer.allocUnsafe(1).parent instanceof ArrayBuffer);
-  Buffer.poolSize = ps;
-
-  assert.throws(() => Buffer.allocUnsafe(10).copy(), {
-    code: "ERR_INVALID_ARG_TYPE",
-    name: "TypeError",
-    message: 'The "target" argument must be an instance of Buffer or ' + "Uint8Array. Received undefined",
-  });
-
-  assert.throws(() => Buffer.from(), {
-    name: "TypeError",
-    message:
-      "The first argument must be of type string or an instance of " +
-      "Buffer, ArrayBuffer, or Array or an Array-like Object. Received undefined",
-  });
-  assert.throws(() => Buffer.from(null), {
-    name: "TypeError",
-    message:
-      "The first argument must be of type string or an instance of " +
-      "Buffer, ArrayBuffer, or Array or an Array-like Object. Received null",
-  });
-
-  // Test prototype getters don't throw
-  assert.strictEqual(Buffer.prototype.parent, undefined);
-  assert.strictEqual(Buffer.prototype.offset, undefined);
-  assert.strictEqual(SlowBuffer.prototype.parent, undefined);
-  assert.strictEqual(SlowBuffer.prototype.offset, undefined);
-
-  {
-    // Test that large negative Buffer length inputs don't affect the pool offset.
-    // Use the fromArrayLike() variant here because it's more lenient
-    // about its input and passes the length directly to allocate().
-    assert.deepStrictEqual(Buffer.from({ length: -Buffer.poolSize }), Buffer.from(""));
-    assert.deepStrictEqual(Buffer.from({ length: -100 }), Buffer.from(""));
-
-    // Check pool offset after that by trying to write string into the pool.
-    Buffer.from("abc");
-  }
-
-  // Test that ParseArrayIndex handles full uint32
-  {
-    const errMsg = common.expectsError({
-      code: "ERR_BUFFER_OUT_OF_BOUNDS",
-      name: "RangeError",
-      message: '"offset" is outside of buffer bounds',
-    });
-    assert.throws(() => Buffer.from(new ArrayBuffer(0), -1 >>> 0), errMsg);
-  }
-
-  // ParseArrayIndex() should reject values that don't fit in a 32 bits size_t.
-  assert.throws(() => {
-    const a = Buffer.alloc(1);
-    const b = Buffer.alloc(1);
-    a.copy(b, 0, 0x100000000, 0x100000001);
-  }, outOfRangeError);
-
-  // Unpooled buffer (replaces SlowBuffer)
-  {
-    const ubuf = Buffer.allocUnsafeSlow(10);
-    assert(ubuf);
-    assert(ubuf.buffer);
-    assert.strictEqual(ubuf.buffer.byteLength, 10);
-  }
-
-  // Regression test to verify that an empty ArrayBuffer does not throw.
-  Buffer.from(new ArrayBuffer());
-
-  // Test that ArrayBuffer from a different context is detected correctly.
-  // const arrayBuf = vm.runInNewContext("new ArrayBuffer()");
-  // Buffer.from(arrayBuf);
-  // Buffer.from({ buffer: arrayBuf });
-
-  assert.throws(() => Buffer.alloc({ valueOf: () => 1 }), /"size" argument must be of type number/);
-  assert.throws(() => Buffer.alloc({ valueOf: () => -1 }), /"size" argument must be of type number/);
-
-  assert.strictEqual(Buffer.prototype.toLocaleString, Buffer.prototype.toString);
-  {
-    const buf = Buffer.from("test");
-    assert.strictEqual(buf.toLocaleString(), buf.toString());
-  }
-
-  assert.throws(
-    () => {
-      Buffer.alloc(0x1000, "This is not correctly encoded", "hex");
-    },
-    {
-      code: "ERR_INVALID_ARG_VALUE",
-      name: "TypeError",
-    },
-  );
-
-  assert.throws(
-    () => {
-      Buffer.alloc(0x1000, "c", "hex");
-    },
-    {
-      code: "ERR_INVALID_ARG_VALUE",
-      name: "TypeError",
-    },
-  );
-
-  assert.throws(
-    () => {
-      Buffer.alloc(1, Buffer.alloc(0));
-    },
-    {
-      code: "ERR_INVALID_ARG_VALUE",
-      name: "TypeError",
-    },
-  );
-
-  assert.throws(
-    () => {
-      Buffer.alloc(40, "x", 20);
-    },
-    {
-      code: "ERR_INVALID_ARG_TYPE",
-      name: "TypeError",
-    },
-  );
-});
-
-it("Buffer.toJSON()", () => {
-  expect(JSON.stringify(Buffer.from("hello"))).toBe(
-    JSON.stringify({
-      type: "Buffer",
-      data: [104, 101, 108, 108, 111],
-    }),
-  );
-});
-
-it("buffer", () => {
-  var buf = new Buffer(20);
-  gc();
-  // if this fails or infinitely loops, it means there is a memory issue with the JSC::Structure object
-  expect(Object.keys(buf).length > 0).toBe(true);
-  gc();
-  expect(buf.write("hello world ")).toBe(12);
-  expect(buf.write("hello world ", "utf8")).toBe(12);
-
-  gc();
-  expect(buf.toString("utf8", 0, "hello world ".length)).toBe("hello world ");
-  gc();
-  expect(buf.toString("base64url", 0, "hello world ".length)).toBe(btoa("hello world "));
-  gc();
-  expect(buf instanceof Uint8Array).toBe(true);
-  gc();
-  expect(buf instanceof Buffer).toBe(true);
-  gc();
-  expect(buf.slice() instanceof Uint8Array).toBe(true);
-  gc();
-  expect(buf.slice(0, 1) instanceof Buffer).toBe(true);
-  gc();
-  expect(buf.slice(0, 1) instanceof Uint8Array).toBe(true);
-  gc();
-  expect(buf.slice(0, 1) instanceof Buffer).toBe(true);
-  gc();
-  expect(buf.slice(0, 0).length).toBe(0);
-});
-
-it("Buffer", () => {
-  var inputs = ["hello world", "hello world".repeat(100), `😋 Get Emoji — All Emojis to ✂️ Copy and 📋 Paste 👌`];
-  var good = inputs.map(a => new TextEncoder().encode(a));
-  for (let i = 0; i < inputs.length; i++) {
-    var input = inputs[i];
-    expect(new Buffer(input).toString("utf8")).toBe(inputs[i]);
-    gc();
-    expect(Array.from(new Buffer(input)).join(",")).toBe(good[i].join(","));
-    gc();
-    expect(Buffer.byteLength(input)).toBe(good[i].length);
-    gc();
-    expect(Buffer.from(input).byteLength).toBe(Buffer.byteLength(input));
-  }
-});
-
-it("Buffer.byteLength", () => {
-  expect(Buffer.byteLength("😀😃😄😁😆😅😂🤣☺️😊😊😇")).toBe(
-    new TextEncoder().encode("😀😃😄😁😆😅😂🤣☺️😊😊😇").byteLength,
-  );
-});
-
-it("Buffer.isBuffer", () => {
-  expect(Buffer.isBuffer(new Buffer(1))).toBe(true);
-  gc();
-  expect(Buffer.isBuffer(new Buffer(0))).toBe(true);
-  gc();
-  expect(Buffer.isBuffer(new Uint8Array(0))).toBe(false);
-  gc();
-  expect(Buffer.isBuffer(new Uint8Array(1))).toBe(false);
-  gc();
-  var a = new Uint8Array(1);
-  gc();
-  expect(Buffer.isBuffer(a)).toBe(false);
-  gc();
-  a = new Buffer(a.buffer);
-  gc();
-  expect(Buffer.isBuffer(a)).toBe(true);
-  gc();
-  expect(a instanceof Buffer).toBe(true);
-  expect(a instanceof Uint8Array).toBe(true);
-  expect(new Uint8Array(0) instanceof Buffer).toBe(false);
-
-  // DOMJIT
-  for (let i = 0; i < 9000; i++) {
-    if (!Buffer.isBuffer(a)) {
-      throw new Error("Buffer.isBuffer failed");
-    }
-
-    if (Buffer.isBuffer("wat")) {
-      throw new Error("Buffer.isBuffer failed");
-    }
-  }
-});
-
-it("writeInt", () => {
-  var buf = new Buffer(1024);
-  var data = new DataView(buf.buffer);
-  buf.writeInt32BE(100);
-  expect(data.getInt32(0, false)).toBe(100);
-  buf.writeInt32BE(100);
-  expect(data.getInt32(0, false)).toBe(100);
-  var childBuf = buf.subarray(0, 4);
-  expect(data.getInt32(0, false)).toBe(100);
-  expect(childBuf.readInt32BE(0, false)).toBe(100);
-});
-
-it("Buffer.from", () => {
-  expect(Buffer.from("hello world").toString("utf8")).toBe("hello world");
-  expect(Buffer.from("hello world", "ascii").toString("utf8")).toBe("hello world");
-  expect(Buffer.from("hello world", "latin1").toString("utf8")).toBe("hello world");
-  gc();
-  expect(Buffer.from([254]).join(",")).toBe("254");
-
-  expect(Buffer.from([254], "utf8").join(",")).toBe("254");
-  expect(Buffer.from([254], "utf-8").join(",")).toBe("254");
-  expect(Buffer.from([254], "latin").join(",")).toBe("254");
-  expect(Buffer.from([254], "uc2").join(",")).toBe("254");
-  expect(Buffer.from([254], "utf16").join(",")).toBe("254");
-  expect(Buffer.isBuffer(Buffer.from([254], "utf16"))).toBe(true);
-
-  expect(() => Buffer.from(123).join(",")).toThrow();
-
-  expect(Buffer.from({ length: 124 }).join(",")).toBe(Uint8Array.from({ length: 124 }).join(","));
-
-  expect(Buffer.from(new ArrayBuffer(1024), 0, 512).join(",")).toBe(new Uint8Array(512).join(","));
-
-  expect(Buffer.from(new Buffer(new ArrayBuffer(1024), 0, 512)).join(",")).toBe(new Uint8Array(512).join(","));
-  gc();
-});
-
-it("Buffer.from latin1 vs ascii", () => {
-  const simpleBuffer = Buffer.from("\xa4", "binary");
-  expect(simpleBuffer.toString("latin1")).toBe("¤");
-  expect(simpleBuffer.toString("ascii")).toBe("$");
-  gc();
-  const asciiBuffer = Buffer.from("\xa4", "ascii");
-  expect(asciiBuffer.toString("latin1")).toBe("¤");
-  expect(asciiBuffer.toString("ascii")).toBe("$");
-  gc();
-});
-
-it("Buffer.equals", () => {
-  var a = new Uint8Array(10);
-  a[2] = 1;
-  var b = new Uint8Array(10);
-  b[2] = 1;
-  a = new Buffer(a.buffer);
-  b = new Buffer(b.buffer);
-  expect(a.equals(b)).toBe(true);
-  b[2] = 0;
-  expect(a.equals(b)).toBe(false);
-});
-
-it("Buffer.compare", () => {
-  var a = new Uint8Array(10);
-  a[2] = 1;
-  var b = new Uint8Array(10);
-  b[2] = 1;
-  a = new Buffer(a.buffer);
-  b = new Buffer(b.buffer);
-  expect(a.compare(b)).toBe(0);
-  b[2] = 0;
-  expect(a.compare(b)).toBe(1);
-  expect(b.compare(a)).toBe(-1);
-
-  const buf = Buffer.from("0123456789", "utf8");
-  const expectedSameBufs = [
-    [buf.slice(-10, 10), Buffer.from("0123456789", "utf8")],
-    [buf.slice(-20, 10), Buffer.from("0123456789", "utf8")],
-    [buf.slice(-20, -10), Buffer.from("", "utf8")],
-    [buf.slice(), Buffer.from("0123456789", "utf8")],
-    [buf.slice(0), Buffer.from("0123456789", "utf8")],
-    [buf.slice(0, 0), Buffer.from("", "utf8")],
-    [buf.slice(undefined), Buffer.from("0123456789", "utf8")],
-    [buf.slice("foobar"), Buffer.from("0123456789", "utf8")],
-    [buf.slice(undefined, undefined), Buffer.from("0123456789", "utf8")],
-    [buf.slice(2), Buffer.from("23456789", "utf8")],
-    [buf.slice(5), Buffer.from("56789", "utf8")],
-    [buf.slice(10), Buffer.from("", "utf8")],
-    [buf.slice(5, 8), Buffer.from("567", "utf8")],
-    [buf.slice(8, -1), Buffer.from("8", "utf8")],
-    [buf.slice(-10), Buffer.from("0123456789", "utf8")],
-    [buf.slice(0, -9), Buffer.from("0", "utf8")],
-    [buf.slice(0, -10), Buffer.from("", "utf8")],
-    [buf.slice(0, -1), Buffer.from("012345678", "utf8")],
-    [buf.slice(2, -2), Buffer.from("234567", "utf8")],
-    [buf.slice(0, 65536), Buffer.from("0123456789", "utf8")],
-    [buf.slice(65536, 0), Buffer.from("", "utf8")],
-    [buf.slice(-5, -8), Buffer.from("", "utf8")],
-    [buf.slice(-5, -3), Buffer.from("56", "utf8")],
-    [buf.slice(-10, 10), Buffer.from("0123456789", "utf8")],
-    [buf.slice("0", "1"), Buffer.from("0", "utf8")],
-    [buf.slice("-5", "10"), Buffer.from("56789", "utf8")],
-    [buf.slice("-10", "10"), Buffer.from("0123456789", "utf8")],
-    [buf.slice("-10", "-5"), Buffer.from("01234", "utf8")],
-    [buf.slice("-10", "-0"), Buffer.from("", "utf8")],
-    [buf.slice("111"), Buffer.from("", "utf8")],
-    [buf.slice("0", "-111"), Buffer.from("", "utf8")],
-  ];
-
-  for (let i = 0, s = buf.toString(); i < buf.length; ++i) {
-    expectedSameBufs.push(
-      [buf.slice(i), Buffer.from(s.slice(i))],
-      [buf.slice(0, i), Buffer.from(s.slice(0, i))],
-      [buf.slice(-i), Buffer.from(s.slice(-i))],
-      [buf.slice(0, -i), Buffer.from(s.slice(0, -i))],
-    );
-  }
-
-  expectedSameBufs.forEach(([buf1, buf2]) => {
-    expect(Buffer.compare(buf1, buf2)).toBe(0);
-  });
-
-  {
-    const buf = Buffer.from([
-      1, 29, 0, 0, 1, 143, 216, 162, 92, 254, 248, 63, 0, 0, 0, 18, 184, 6, 0, 175, 29, 0, 8, 11, 1, 0, 0,
-    ]);
-    const chunk1 = Buffer.from([1, 29, 0, 0, 1, 143, 216, 162, 92, 254, 248, 63, 0]);
-    const chunk2 = Buffer.from([0, 0, 18, 184, 6, 0, 175, 29, 0, 8, 11, 1, 0, 0]);
-    const middle = buf.length / 2;
-
-    expect(JSON.stringify(buf.slice(0, middle))).toBe(JSON.stringify(chunk1));
-    expect(JSON.stringify(buf.slice(middle))).toBe(JSON.stringify(chunk2));
-  }
-});
-
-it("Buffer.copy", () => {
-  var array1 = new Uint8Array(128);
-  array1.fill(100);
-  array1 = new Buffer(array1.buffer);
-  var array2 = new Uint8Array(128);
-  array2.fill(200);
-  array2 = new Buffer(array2.buffer);
-  var array3 = new Uint8Array(128);
-  array3 = new Buffer(array3.buffer);
-  gc();
-  expect(array1.copy(array2)).toBe(128);
-  expect(array1.join("")).toBe(array2.join(""));
-
-  {
-    // Create two `Buffer` instances.
-    const buf1 = Buffer.allocUnsafe(26);
-    const buf2 = Buffer.allocUnsafe(26).fill("!");
-
-    for (let i = 0; i < 26; i++) {
-      // 97 is the decimal ASCII value for 'a'.
-      buf1[i] = i + 97;
-    }
-
-    // Copy `buf1` bytes 16 through 19 into `buf2` starting at byte 8 of `buf2`.
-    buf1.copy(buf2, 8, 16, 20);
-    expect(buf2.toString("ascii", 0, 25)).toBe("!!!!!!!!qrst!!!!!!!!!!!!!");
-  }
-
-  {
-    const buf = Buffer.allocUnsafe(26);
-
-    for (let i = 0; i < 26; i++) {
-      // 97 is the decimal ASCII value for 'a'.
-      buf[i] = i + 97;
-    }
-
-    buf.copy(buf, 0, 4, 10);
-    expect(buf.toString()).toBe("efghijghijklmnopqrstuvwxyz");
-  }
-});
-
-export function fillRepeating(dstBuffer, start, end) {
-  let len = dstBuffer.length, // important: use indices length, not byte-length
-    sLen = end - start,
-    p = sLen; // set initial position = source sequence length
-
-  // step 2: copy existing data doubling segment length per iteration
-  while (p < len) {
-    if (p + sLen > len) sLen = len - p; // if not power of 2, truncate last segment
-    dstBuffer.copyWithin(p, start, sLen); // internal copy
-    p += sLen; // add current length to offset
-    sLen <<= 1; // double length for next segment
-  }
-}
-
-describe("Buffer.fill string", () => {
-  for (let text of ["hello world", "1234567890", "\uD83D\uDE00", "😀😃😄😁😆😅😂🤣☺️😊😊😇"]) {
-    it(text, () => {
-      var input = new Buffer(1024);
-      input.fill(text);
-      var demo = new Uint8Array(1024);
-      var encoded = new TextEncoder().encode(text);
-
-      demo.set(encoded);
-      fillRepeating(demo, 0, encoded.length);
-      expect(input.join("")).toBe(demo.join(""));
-    });
-  }
-});
-
-it("Buffer.fill 1 char string", () => {
-  var input = new Buffer(1024);
-  input.fill("h");
-  var demo = new Uint8Array(1024);
-  var encoded = new TextEncoder().encode("h");
-
-  demo.set(encoded);
-  fillRepeating(demo, 0, encoded.length);
-  expect(input.join("")).toBe(demo.join(""));
-});
-
-it("Buffer.concat", () => {
-  var array1 = new Uint8Array(128);
-  array1.fill(100);
-  var array2 = new Uint8Array(128);
-  array2.fill(200);
-  var array3 = new Uint8Array(128);
-  array3.fill(300);
-  gc();
-  expect(Buffer.concat([array1, array2, array3]).join("")).toBe(array1.join("") + array2.join("") + array3.join(""));
-  expect(Buffer.concat([array1, array2, array3], 222).length).toBe(222);
-  expect(Buffer.concat([array1, array2, array3], 222).subarray(0, 128).join("")).toBe("100".repeat(128));
-  expect(Buffer.concat([array1, array2, array3], 222).subarray(129, 222).join("")).toBe("200".repeat(222 - 129));
-});
-
-it("read", () => {
-  var buf = new Buffer(1024);
-  var data = new DataView(buf.buffer);
-  function reset() {
-    new Uint8Array(buf.buffer).fill(0);
-  }
-  data.setBigInt64(0, BigInt(1000), false);
-  expect(buf.readBigInt64BE(0)).toBe(BigInt(1000));
-  reset();
-
-  data.setBigInt64(0, BigInt(1000), true);
-  expect(buf.readBigInt64LE(0)).toBe(BigInt(1000));
-  reset();
-
-  data.setBigUint64(0, BigInt(1000), false);
-  expect(buf.readBigUInt64BE(0)).toBe(BigInt(1000));
-  reset();
-
-  data.setBigUint64(0, BigInt(1000), true);
-  expect(buf.readBigUInt64LE(0)).toBe(BigInt(1000));
-  reset();
-
-  data.setFloat64(0, 1000, false);
-  expect(buf.readDoubleBE(0)).toBe(1000);
-  reset();
-
-  data.setFloat64(0, 1000, true);
-  expect(buf.readDoubleLE(0)).toBe(1000);
-  reset();
-
-  data.setFloat32(0, 1000, false);
-  expect(buf.readFloatBE(0)).toBe(1000);
-  reset();
-
-  data.setFloat32(0, 1000, true);
-  expect(buf.readFloatLE(0)).toBe(1000);
-  reset();
-
-  data.setInt16(0, 1000, false);
-  expect(buf.readInt16BE(0)).toBe(1000);
-  reset();
-
-  data.setInt16(0, 1000, true);
-  expect(buf.readInt16LE(0)).toBe(1000);
-  reset();
-
-  data.setInt32(0, 1000, false);
-  expect(buf.readInt32BE(0)).toBe(1000);
-  reset();
-
-  data.setInt32(0, 1000, true);
-  expect(buf.readInt32LE(0)).toBe(1000);
-  reset();
-
-  data.setInt8(0, 100, false);
-  expect(buf.readInt8(0)).toBe(100);
-  reset();
-
-  data.setUint16(0, 1000, false);
-  expect(buf.readUInt16BE(0)).toBe(1000);
-  reset();
-
-  data.setUint16(0, 1000, true);
-  expect(buf.readUInt16LE(0)).toBe(1000);
-  reset();
-
-  data.setUint32(0, 1000, false);
-  expect(buf.readUInt32BE(0)).toBe(1000);
-  reset();
-
-  data.setUint32(0, 1000, true);
-  expect(buf.readUInt32LE(0)).toBe(1000);
-  reset();
-
-  data.setUint8(0, 255, false);
-  expect(buf.readUInt8(0)).toBe(255);
-  reset();
-
-  data.setUint8(0, 255, false);
-  expect(buf.readUInt8(0)).toBe(255);
-  reset();
-});
-
-// this is for checking the simd code path
-it("write long utf16 string works", () => {
-  const long = "😀😃😄😁😆😅😂🤣☺️😊😊😇".repeat(200);
-  const buf = Buffer.alloc(long.length * 2);
-  buf.write(long, 0, "utf16le");
-  expect(buf.toString("utf16le")).toBe(long);
-  for (let offset = 0; offset < long.length; offset += 48) {
-    expect(buf.toString("utf16le", offset, offset + 4)).toBe("😀");
-    expect(buf.toString("utf16le", offset, offset + 8)).toBe("😀😃");
-    expect(buf.toString("utf16le", offset, offset + 12)).toBe("😀😃😄");
-    expect(buf.toString("utf16le", offset, offset + 16)).toBe("😀😃😄😁");
-    expect(buf.toString("utf16le", offset, offset + 20)).toBe("😀😃😄😁😆");
-    expect(buf.toString("utf16le", offset, offset + 24)).toBe("😀😃😄😁😆😅");
-    expect(buf.toString("utf16le", offset, offset + 28)).toBe("😀😃😄😁😆😅😂");
-    expect(buf.toString("utf16le", offset, offset + 32)).toBe("😀😃😄😁😆😅😂🤣");
-    expect(buf.toString("utf16le", offset, offset + 36)).toBe("😀😃😄😁😆😅😂🤣☺️");
-    expect(buf.toString("utf16le", offset, offset + 40)).toBe("😀😃😄😁😆😅😂🤣☺️😊");
-    expect(buf.toString("utf16le", offset, offset + 44)).toBe("😀😃😄😁😆😅😂🤣☺️😊😊");
-    expect(buf.toString("utf16le", offset, offset + 48)).toBe("😀😃😄😁😆😅😂🤣☺️😊😊😇");
-  }
-});
-
-it("write", () => {
-  const resultMap = new Map([
-    ["utf8", Buffer.from([102, 111, 111, 0, 0, 0, 0, 0, 0])],
-    ["ucs2", Buffer.from([102, 0, 111, 0, 111, 0, 0, 0, 0])],
-    ["ascii", Buffer.from([102, 111, 111, 0, 0, 0, 0, 0, 0])],
-    ["latin1", Buffer.from([102, 111, 111, 0, 0, 0, 0, 0, 0])],
-    ["binary", Buffer.from([102, 111, 111, 0, 0, 0, 0, 0, 0])],
-    ["utf16le", Buffer.from([102, 0, 111, 0, 111, 0, 0, 0, 0])],
-    ["base64", Buffer.from([102, 111, 111, 0, 0, 0, 0, 0, 0])],
-    ["base64url", Buffer.from([102, 111, 111, 0, 0, 0, 0, 0, 0])],
-    ["hex", Buffer.from([102, 111, 111, 0, 0, 0, 0, 0, 0])],
-  ]);
-
-  let buf = Buffer.alloc(9);
-  function reset() {
-    new Uint8Array(buf.buffer).fill(0);
-  }
-
-  // utf8, ucs2, ascii, latin1, utf16le
-  const encodings = ["utf8", "utf-8", "ucs2", "ucs-2", "ascii", "latin1", "binary", "utf16le", "utf-16le"];
-
-  encodings
-    .reduce((es, e) => es.concat(e, e.toUpperCase()), [])
-    .forEach(encoding => {
-      reset();
-
-      const len = Buffer.byteLength("foo", encoding);
-      expect(buf.write("foo", 0, len, encoding)).toBe(len);
-
-      if (encoding.includes("-")) encoding = encoding.replace("-", "");
-
-      expect(buf).toStrictEqual(resultMap.get(encoding.toLowerCase()));
-    });
-
-  // base64
-  ["base64", "BASE64", "base64url", "BASE64URL"].forEach(encoding => {
-    reset();
-
-    const len = Buffer.byteLength("Zm9v", encoding);
-
-    expect(buf.write("Zm9v", 0, len, encoding)).toBe(len);
-    expect(buf).toStrictEqual(resultMap.get(encoding.toLowerCase()));
-  });
-
-  // hex
-  ["hex", "HEX"].forEach(encoding => {
-    reset();
-    const len = Buffer.byteLength("666f6f", encoding);
-
-    expect(buf.write("666f6f", 0, len, encoding)).toBe(len);
-    expect(buf).toStrictEqual(resultMap.get(encoding.toLowerCase()));
-  });
-
-  // UCS-2 overflow CVE-2018-12115
-  for (let i = 1; i < 4; i++) {
-    // Allocate two Buffers sequentially off the pool. Run more than once in case
-    // we hit the end of the pool and don't get sequential allocations
-    const x = Buffer.allocUnsafe(4).fill(0);
-    const y = Buffer.allocUnsafe(4).fill(1);
-    // Should not write anything, pos 3 doesn't have enough room for a 16-bit char
-    expect(x.write("ыыыыыы", 3, "ucs2")).toBe(0);
-    // CVE-2018-12115 experienced via buffer overrun to next block in the pool
-    expect(Buffer.compare(y, Buffer.alloc(4, 1))).toBe(0);
-  }
-
-  // // Should not write any data when there is no space for 16-bit chars
-  const z = Buffer.alloc(4, 0);
-  expect(z.write("\u0001", 3, "ucs2")).toBe(0);
-  expect(Buffer.compare(z, Buffer.alloc(4, 0))).toBe(0);
-  // Make sure longer strings are written up to the buffer end.
-  expect(z.write("abcd", 2)).toBe(2);
-  expect([...z]).toStrictEqual([0, 0, 0x61, 0x62]);
-
-  //Large overrun could corrupt the process with utf8
-  expect(Buffer.alloc(4).write("a".repeat(100), 3, "utf8")).toBe(1);
-
-  // Large overrun could corrupt the process
-  expect(Buffer.alloc(4).write("ыыыыыы".repeat(100), 3, "utf16le")).toBe(0);
-
-  {
-    // .write() does not affect the byte after the written-to slice of the Buffer.
-    // Refs: https://github.com/nodejs/node/issues/26422
-    const buf = Buffer.alloc(8);
-    expect(buf.write("ыы", 1, "utf16le")).toBe(4);
-    expect([...buf]).toStrictEqual([0, 0x4b, 0x04, 0x4b, 0x04, 0, 0, 0]);
-  }
-});
-
-it("includes", () => {
-  const buf = Buffer.from("this is a buffer");
-
-  expect(buf.includes("this")).toBe(true);
-  expect(buf.includes("is")).toBe(true);
-  expect(buf.includes(Buffer.from("a buffer"))).toBe(true);
-  expect(buf.includes(97)).toBe(true);
-  expect(buf.includes(Buffer.from("a buffer example"))).toBe(false);
-  expect(buf.includes(Buffer.from("a buffer example").slice(0, 8))).toBe(true);
-  expect(buf.includes("this", 4)).toBe(false);
-});
-
-it("indexOf", () => {
-  const buf = Buffer.from("this is a buffer");
-
-  expect(buf.indexOf("this")).toBe(0);
-  expect(buf.indexOf("is")).toBe(2);
-  expect(buf.indexOf(Buffer.from("a buffer"))).toBe(8);
-  expect(buf.indexOf(97)).toBe(8);
-  expect(buf.indexOf(Buffer.from("a buffer example"))).toBe(-1);
-  expect(buf.indexOf(Buffer.from("a buffer example").slice(0, 8))).toBe(8);
-
-  const utf16Buffer = Buffer.from("\u039a\u0391\u03a3\u03a3\u0395", "utf16le");
-
-  expect(utf16Buffer.indexOf("\u03a3", 0, "utf16le")).toBe(4);
-  expect(utf16Buffer.indexOf("\u03a3", -4, "utf16le")).toBe(6);
-
-  const b = Buffer.from("abcdef");
-
-  // Passing a value that's a number, but not a valid byte.
-  // Prints: 2, equivalent to searching for 99 or 'c'.
-  expect(b.indexOf(99.9)).toBe(2);
-  expect(b.indexOf(256 + 99)).toBe(2);
-
-  // Passing a byteOffset that coerces to NaN or 0.
-  // Prints: 1, searching the whole buffer.
-  expect(b.indexOf("b", undefined)).toBe(1);
-  expect(b.indexOf("b", {})).toBe(1);
-  expect(b.indexOf("b", null)).toBe(1);
-  expect(b.indexOf("b", [])).toBe(1);
-});
-
-it("lastIndexOf", () => {
-  const buf = Buffer.from("this buffer is a buffer");
-
-  expect(buf.lastIndexOf("this")).toBe(0);
-  expect(buf.lastIndexOf("this", 0)).toBe(0);
-  expect(buf.lastIndexOf("this", -1000)).toBe(-1);
-  expect(buf.lastIndexOf("buffer")).toBe(17);
-  expect(buf.lastIndexOf(Buffer.from("buffer"))).toBe(17);
-  expect(buf.lastIndexOf(97)).toBe(15);
-  expect(buf.lastIndexOf(Buffer.from("yolo"))).toBe(-1);
-  expect(buf.lastIndexOf("buffer", 5)).toBe(5);
-  expect(buf.lastIndexOf("buffer", 4)).toBe(-1);
-
-  const utf16Buffer = Buffer.from("\u039a\u0391\u03a3\u03a3\u0395", "utf16le");
-
-  expect(utf16Buffer.lastIndexOf("\u03a3", undefined, "utf16le")).toBe(6);
-  expect(utf16Buffer.lastIndexOf("\u03a3", -5, "utf16le")).toBe(4);
-
-  const b = Buffer.from("abcdef");
-
-  // Passing a value that's a number, but not a valid byte.
-  // Prints: 2, equivalent to searching for 99 or 'c'.
-  expect(b.lastIndexOf(99.9)).toBe(2);
-  expect(b.lastIndexOf(256 + 99)).toBe(2);
-
-  // Passing a byteOffset that coerces to NaN or 0.
-  // Prints: 1, searching the whole buffer.
-  expect(b.lastIndexOf("b", undefined)).toBe(1);
-  expect(b.lastIndexOf("b", {})).toBe(1);
-
-  // Passing a byteOffset that coerces to 0.
-  // Prints: -1, equivalent to passing 0.
-  expect(b.lastIndexOf("b", null)).toBe(-1);
-  expect(b.lastIndexOf("b", [])).toBe(-1);
-});
-
-for (let fn of [Buffer.prototype.slice, Buffer.prototype.subarray]) {
-  it(`Buffer.${fn.name}`, () => {
-    const buf = new Buffer("buffer");
-    const slice = fn.call(buf, 1, 3);
-    expect(slice.toString()).toBe("uf");
-    const slice2 = fn.call(slice, 100);
-    expect(slice2.toString()).toBe("");
-
-    const slice3 = fn.call(slice, -1);
-    expect(slice3.toString()).toBe("f");
-  });
-}
-
-it("Buffer.from(base64)", () => {
-  const buf = Buffer.from("aGVsbG8gd29ybGQ=", "base64");
-  expect(buf.toString()).toBe("hello world");
-
-  expect(Buffer.from(btoa('console.log("hello world")\n'), "base64").toString()).toBe('console.log("hello world")\n');
-});
-
-it("Buffer.swap16", () => {
-  const examples = [
-    ["", ""],
-    ["a1", "1a"],
-    ["a1b2", "1a2b"],
-  ];
-
-  for (let i = 0; i < examples.length; i++) {
-    const input = examples[i][0];
-    const output = examples[i][1];
-    const buf = Buffer.from(input, "utf-8");
-
-    const ref = buf.swap16();
-    expect(ref instanceof Buffer).toBe(true);
-    expect(buf.toString()).toBe(output);
-  }
-
-  const buf = Buffer.from("123", "utf-8");
-  try {
-    buf.swap16();
-    expect(false).toBe(true);
-  } catch (exception) {
-    expect(exception.message).toBe("Buffer size must be a multiple of 16-bits");
-  }
-});
-
-it("Buffer.swap32", () => {
-  const examples = [
-    ["", ""],
-    ["a1b2", "2b1a"],
-    ["a1b2c3d4", "2b1a4d3c"],
-  ];
-
-  for (let i = 0; i < examples.length; i++) {
-    const input = examples[i][0];
-    const output = examples[i][1];
-    const buf = Buffer.from(input, "utf-8");
-
-    const ref = buf.swap32();
-    expect(ref instanceof Buffer).toBe(true);
-    expect(buf.toString()).toBe(output);
-  }
-
-  const buf = Buffer.from("12345", "utf-8");
-  try {
-    buf.swap32();
-    expect(false).toBe(true);
-  } catch (exception) {
-    expect(exception.message).toBe("Buffer size must be a multiple of 32-bits");
-  }
-});
-
-it("Buffer.swap64", () => {
-  const examples = [
-    ["", ""],
-    ["a1b2c3d4", "4d3c2b1a"],
-    ["a1b2c3d4e5f6g7h8", "4d3c2b1a8h7g6f5e"],
-  ];
-
-  for (let i = 0; i < examples.length; i++) {
-    const input = examples[i][0];
-    const output = examples[i][1];
-    const buf = Buffer.from(input, "utf-8");
-
-    const ref = buf.swap64();
-    expect(ref instanceof Buffer).toBe(true);
-    expect(buf.toString()).toBe(output);
-  }
-
-  const buf = Buffer.from("123456789", "utf-8");
-  try {
-    buf.swap64();
-    expect(false).toBe(true);
-  } catch (exception) {
-    expect(exception.message).toBe("Buffer size must be a multiple of 64-bits");
-  }
-});
-
-it("Buffer.toString regessions", () => {
-  expect(
-    Buffer.from([65, 0])
-      .toString("utf16le")
-      .split("")
-      .map(x => x.charCodeAt(0)),
-  ).toEqual([65]);
-  expect(Buffer.from([65, 0]).toString("base64")).toBe("QQA=");
-  expect(Buffer.from('{"alg":"RS256","typ":"JWT"}', "latin1").toString("latin1")).toBe('{"alg":"RS256","typ":"JWT"}');
-  expect(Buffer.from('{"alg":"RS256","typ":"JWT"}', "utf8").toString("utf8")).toBe('{"alg":"RS256","typ":"JWT"}');
-});
-
-it("Buffer.toString(utf16le)", () => {
-  const buf = Buffer.from("hello world", "utf16le");
-  expect(buf.toString("utf16le")).toBe("hello world");
-  expect(buf.toString("utf16le", 0, 5)).toBe("he");
-});
-
-it("Buffer.toString(binary)", () => {
-  var x = Buffer.from("<?xm", "binary");
-  expect(x.toString("binary")).toBe("<?xm");
-});
-
-it("Buffer.toString(base64)", () => {
-  {
-    const buf = Buffer.from("hello world");
-    expect(buf.toString("base64")).toBe("aGVsbG8gd29ybGQ=");
-  }
-
-  {
-    expect(Buffer.from(`console.log("hello world")\n`).toString("base64")).toBe(btoa('console.log("hello world")\n'));
-  }
-});
-
-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();
-});
-
-it("constants", () => {
-  expect(BufferModule.constants.MAX_LENGTH).toBe(4294967296);
-  expect(BufferModule.constants.MAX_STRING_LENGTH).toBe(536870888);
-  expect(BufferModule.default.constants.MAX_LENGTH).toBe(4294967296);
-  expect(BufferModule.default.constants.MAX_STRING_LENGTH).toBe(536870888);
-});
-
-it("File", () => {
-  expect(BufferModule.File).toBe(Blob);
-});
-
-it("transcode", () => {
-  expect(typeof BufferModule.transcode).toBe("undefined");
-
-  // This is a masqueradesAsUndefined function
-  expect(() => BufferModule.transcode()).toThrow("Not implemented");
-});
-
-it("Buffer.from (Node.js test/test-buffer-from.js)", () => {
-  const checkString = "test";
-
-  const check = Buffer.from(checkString);
-
-  class MyString extends String {
-    constructor() {
-      super(checkString);
-    }
-  }
-
-  class MyPrimitive {
-    [Symbol.toPrimitive]() {
-      return checkString;
-    }
-  }
-
-  class MyBadPrimitive {
-    [Symbol.toPrimitive]() {
-      return 1;
-    }
-  }
-
-  expect(Buffer.from(new String(checkString))).toStrictEqual(check);
-  expect(Buffer.from(new MyString())).toStrictEqual(check);
-  expect(Buffer.from(new MyPrimitive())).toStrictEqual(check);
-
-  [
-    {},
-    new Boolean(true),
-    {
-      valueOf() {
-        return null;
-      },
-    },
-    {
-      valueOf() {
-        return undefined;
-      },
-    },
-    { valueOf: null },
-    Object.create(null),
-    new Number(true),
-    new MyBadPrimitive(),
-    Symbol(),
-    5n,
-    (one, two, three) => {},
-    undefined,
-    null,
-  ].forEach(input => {
-    expect(() => Buffer.from(input)).toThrow();
-    expect(() => Buffer.from(input, "hex")).toThrow();
-  });
-
-  expect(() => Buffer.allocUnsafe(10)).not.toThrow(); // Should not throw.
-  expect(() => Buffer.from("deadbeaf", "hex")).not.toThrow(); // Should not throw.
-});
-
-it("new Buffer() (Node.js test/test-buffer-new.js)", () => {
-  const LENGTH = 16;
-
-  const ab = new ArrayBuffer(LENGTH);
-  const dv = new DataView(ab);
-  const ui = new Uint8Array(ab);
-  const buf = Buffer.from(ab);
-
-  expect(buf instanceof Buffer).toBe(true);
-  // expect(buf.parent, buf.buffer);
-  expect(buf.buffer).toBe(ab);
-  expect(buf.length).toBe(ab.byteLength);
-
-  buf.fill(0xc);
-  for (let i = 0; i < LENGTH; i++) {
-    expect(ui[i]).toBe(0xc);
-    ui[i] = 0xf;
-    expect(buf[i]).toBe(0xf);
-  }
-
-  buf.writeUInt32LE(0xf00, 0);
-  buf.writeUInt32BE(0xb47, 4);
-  buf.writeDoubleLE(3.1415, 8);
-  expect(dv.getUint32(0, true)).toBe(0xf00);
-  expect(dv.getUint32(4)).toBe(0xb47);
-  expect(dv.getFloat64(8, true)).toBe(3.1415);
-
-  // Now test protecting users from doing stupid things
-
-  // expect(function () {
-  //   function AB() {}
-  //   Object.setPrototypeOf(AB, ArrayBuffer);
-  //   Object.setPrototypeOf(AB.prototype, ArrayBuffer.prototype);
-  //   // Buffer.from(new AB());
-  // }).toThrow();
-  // console.log(origAB !== ab);
-
-  // Test the byteOffset and length arguments
-  {
-    const ab = new Uint8Array(5);
-    ab[0] = 1;
-    ab[1] = 2;
-    ab[2] = 3;
-    ab[3] = 4;
-    ab[4] = 5;
-    const buf = Buffer.from(ab.buffer, 1, 3);
-    expect(buf.length).toBe(3);
-    expect(buf[0]).toBe(2);
-    expect(buf[1]).toBe(3);
-    expect(buf[2]).toBe(4);
-    buf[0] = 9;
-    expect(ab[1]).toBe(9);
-
-    expect(() => Buffer.from(ab.buffer, 6)).toThrow();
-    expect(() => Buffer.from(ab.buffer, 3, 6)).toThrow();
-  }
-
-  // Test the deprecated Buffer() version also
-  {
-    const ab = new Uint8Array(5);
-    ab[0] = 1;
-    ab[1] = 2;
-    ab[2] = 3;
-    ab[3] = 4;
-    ab[4] = 5;
-    const buf = Buffer(ab.buffer, 1, 3);
-    expect(buf.length).toBe(3);
-    expect(buf[0]).toBe(2);
-    expect(buf[1]).toBe(3);
-    expect(buf[2]).toBe(4);
-    buf[0] = 9;
-    expect(ab[1]).toBe(9);
-
-    expect(() => Buffer(ab.buffer, 6)).toThrow();
-    expect(() => Buffer(ab.buffer, 3, 6)).toThrow();
-  }
-
-  {
-    // If byteOffset is not numeric, it defaults to 0.
-    const ab = new ArrayBuffer(10);
-    const expected = Buffer.from(ab, 0);
-    expect(Buffer.from(ab, "fhqwhgads")).toStrictEqual(expected);
-    expect(Buffer.from(ab, NaN)).toStrictEqual(expected);
-    expect(Buffer.from(ab, {})).toStrictEqual(expected);
-    expect(Buffer.from(ab, [])).toStrictEqual(expected);
-
-    // If byteOffset can be converted to a number, it will be.
-    expect(Buffer.from(ab, [1])).toStrictEqual(Buffer.from(ab, 1));
-
-    // If byteOffset is Infinity, throw.
-    expect(() => {
-      Buffer.from(ab, Infinity);
-    }).toThrow();
-  }
-
-  {
-    // If length is not numeric, it defaults to 0.
-    const ab = new ArrayBuffer(10);
-    const expected = Buffer.from(ab, 0, 0);
-    expect(Buffer.from(ab, 0, "fhqwhgads")).toStrictEqual(expected);
-    expect(Buffer.from(ab, 0, NaN)).toStrictEqual(expected);
-    expect(Buffer.from(ab, 0, {})).toStrictEqual(expected);
-    expect(Buffer.from(ab, 0, [])).toStrictEqual(expected);
-
-    // If length can be converted to a number, it will be.
-    expect(Buffer.from(ab, 0, [1])).toStrictEqual(Buffer.from(ab, 0, 1));
-
-    // If length is Infinity, throw.
-    expect(() => Buffer.from(ab, 0, Infinity)).toThrow();
-  }
-
-  // Test an array like entry with the length set to NaN.
-  expect(Buffer.from({ length: NaN })).toStrictEqual(Buffer.alloc(0));
-});
-
-it("Buffer.fill (Node.js tests)", () => {
-  "use strict";
-  const SIZE = 28;
-
-  const buf1 = Buffer.allocUnsafe(SIZE);
-  const buf2 = Buffer.allocUnsafe(SIZE);
-
-  function assertEqual(a, b) {
-    expect(a).toEqual(b);
-  }
-
-  // Default encoding
-  testBufs("abc");
-  testBufs("\u0222aa");
-  testBufs("a\u0234b\u0235c\u0236");
-  testBufs("abc", 4);
-  testBufs("abc", 5);
-  testBufs("abc", SIZE);
-  testBufs("\u0222aa", 2);
-  testBufs("\u0222aa", 8);
-  testBufs("a\u0234b\u0235c\u0236", 4);
-  testBufs("a\u0234b\u0235c\u0236", 12);
-  testBufs("abc", 4, 1);
-  testBufs("abc", 5, 1);
-  testBufs("\u0222aa", 8, 1);
-  testBufs("a\u0234b\u0235c\u0236", 4, 1);
-  testBufs("a\u0234b\u0235c\u0236", 12, 1);
-
-  // UTF8
-  testBufs("abc", "utf8");
-  testBufs("\u0222aa", "utf8");
-  testBufs("a\u0234b\u0235c\u0236", "utf8");
-  testBufs("abc", 4, "utf8");
-  testBufs("abc", 5, "utf8");
-  testBufs("abc", SIZE, "utf8");
-  testBufs("\u0222aa", 2, "utf8");
-  testBufs("\u0222aa", 8, "utf8");
-  testBufs("a\u0234b\u0235c\u0236", 4, "utf8");
-  testBufs("a\u0234b\u0235c\u0236", 12, "utf8");
-  testBufs("abc", 4, 1, "utf8");
-  testBufs("abc", 5, 1, "utf8");
-  testBufs("\u0222aa", 8, 1, "utf8");
-  testBufs("a\u0234b\u0235c\u0236", 4, 1, "utf8");
-  testBufs("a\u0234b\u0235c\u0236", 12, 1, "utf8");
-  assertEqual(Buffer.allocUnsafe(1).fill(0).fill("\u0222")[0], 0xc8);
-
-  // BINARY
-  testBufs("abc", "binary");
-  testBufs("\u0222aa", "binary");
-  testBufs("a\u0234b\u0235c\u0236", "binary");
-  testBufs("abc", 4, "binary");
-  testBufs("abc", 5, "binary");
-  testBufs("abc", SIZE, "binary");
-  testBufs("\u0222aa", 2, "binary");
-  testBufs("\u0222aa", 8, "binary");
-  testBufs("a\u0234b\u0235c\u0236", 4, "binary");
-  testBufs("a\u0234b\u0235c\u0236", 12, "binary");
-  testBufs("abc", 4, 1, "binary");
-  testBufs("abc", 5, 1, "binary");
-  testBufs("\u0222aa", 8, 1, "binary");
-  testBufs("a\u0234b\u0235c\u0236", 4, 1, "binary");
-  testBufs("a\u0234b\u0235c\u0236", 12, 1, "binary");
-
-  // LATIN1
-  testBufs("abc", "latin1");
-  testBufs("\u0222aa", "latin1");
-  testBufs("a\u0234b\u0235c\u0236", "latin1");
-  testBufs("abc", 4, "latin1");
-  testBufs("abc", 5, "latin1");
-  testBufs("abc", SIZE, "latin1");
-  testBufs("\u0222aa", 2, "latin1");
-  testBufs("\u0222aa", 8, "latin1");
-  testBufs("a\u0234b\u0235c\u0236", 4, "latin1");
-  testBufs("a\u0234b\u0235c\u0236", 12, "latin1");
-  testBufs("abc", 4, 1, "latin1");
-  testBufs("abc", 5, 1, "latin1");
-  testBufs("\u0222aa", 8, 1, "latin1");
-  testBufs("a\u0234b\u0235c\u0236", 4, 1, "latin1");
-  testBufs("a\u0234b\u0235c\u0236", 12, 1, "latin1");
-
-  // UCS2
-  testBufs("abc", "ucs2");
-  testBufs("\u0222aa", "ucs2");
-  testBufs("a\u0234b\u0235c\u0236", "ucs2");
-  testBufs("abc", 4, "ucs2");
-  testBufs("abc", SIZE, "ucs2");
-  testBufs("\u0222aa", 2, "ucs2");
-  testBufs("\u0222aa", 8, "ucs2");
-  testBufs("a\u0234b\u0235c\u0236", 4, "ucs2");
-  testBufs("a\u0234b\u0235c\u0236", 12, "ucs2");
-  testBufs("abc", 4, 1, "ucs2");
-  testBufs("abc", 5, 1, "ucs2");
-  testBufs("\u0222aa", 8, 1, "ucs2");
-  testBufs("a\u0234b\u0235c\u0236", 4, 1, "ucs2");
-  testBufs("a\u0234b\u0235c\u0236", 12, 1, "ucs2");
-  assertEqual(Buffer.allocUnsafe(1).fill("\u0222", "ucs2")[0], 0x22);
-
-  // HEX
-  testBufs("616263", "hex");
-  testBufs("c8a26161", "hex");
-  testBufs("61c8b462c8b563c8b6", "hex");
-  testBufs("616263", 4, "hex");
-  testBufs("616263", 5, "hex");
-  testBufs("616263", SIZE, "hex");
-  testBufs("c8a26161", 2, "hex");
-  testBufs("c8a26161", 8, "hex");
-  testBufs("61c8b462c8b563c8b6", 4, "hex");
-  testBufs("61c8b462c8b563c8b6", 12, "hex");
-  testBufs("616263", 4, 1, "hex");
-  testBufs("616263", 5, 1, "hex");
-  testBufs("c8a26161", 8, 1, "hex");
-  testBufs("61c8b462c8b563c8b6", 4, 1, "hex");
-  testBufs("61c8b462c8b563c8b6", 12, 1, "hex");
-
-  expect(() => {
-    const buf = Buffer.allocUnsafe(SIZE);
-
-    buf.fill("yKJh", "hex");
-  }).toThrow();
-
-  expect(() => {
-    const buf = Buffer.allocUnsafe(SIZE);
-
-    buf.fill("\u0222", "hex");
-  }).toThrow();
-
-  // BASE64
-  testBufs("YWJj", "base64");
-  testBufs("yKJhYQ==", "base64");
-  testBufs("Yci0Ysi1Y8i2", "base64");
-  testBufs("YWJj", 4, "base64");
-  testBufs("YWJj", SIZE, "base64");
-  testBufs("yKJhYQ==", 2, "base64");
-  testBufs("yKJhYQ==", 8, "base64");
-  testBufs("Yci0Ysi1Y8i2", 4, "base64");
-  testBufs("Yci0Ysi1Y8i2", 12, "base64");
-  testBufs("YWJj", 4, 1, "base64");
-  testBufs("YWJj", 5, 1, "base64");
-  testBufs("yKJhYQ==", 8, 1, "base64");
-  testBufs("Yci0Ysi1Y8i2", 4, 1, "base64");
-  testBufs("Yci0Ysi1Y8i2", 12, 1, "base64");
-
-  // BASE64URL
-  testBufs("YWJj", "base64url");
-  testBufs("yKJhYQ", "base64url");
-  testBufs("Yci0Ysi1Y8i2", "base64url");
-  testBufs("YWJj", 4, "base64url");
-  testBufs("YWJj", SIZE, "base64url");
-  testBufs("yKJhYQ", 2, "base64url");
-  testBufs("yKJhYQ", 8, "base64url");
-  testBufs("Yci0Ysi1Y8i2", 4, "base64url");
-  testBufs("Yci0Ysi1Y8i2", 12, "base64url");
-  testBufs("YWJj", 4, 1, "base64url");
-  testBufs("YWJj", 5, 1, "base64url");
-  testBufs("yKJhYQ", 8, 1, "base64url");
-  testBufs("Yci0Ysi1Y8i2", 4, 1, "base64url");
-  testBufs("Yci0Ysi1Y8i2", 12, 1, "base64url");
-
-  // Buffer
-  function deepStrictEqualValues(buf, arr) {
-    for (const [index, value] of buf.entries()) {
-      expect(value).toStrictEqual(arr[index]);
-    }
-  }
-
-  const buf2Fill = Buffer.allocUnsafe(1).fill(2);
-  deepStrictEqualValues(genBuffer(4, [buf2Fill]), [2, 2, 2, 2]);
-  deepStrictEqualValues(genBuffer(4, [buf2Fill, 1]), [0, 2, 2, 2]);
-  deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, 3]), [0, 2, 2, 0]);
-  deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, 1]), [0, 0, 0, 0]);
-  const hexBufFill = Buffer.allocUnsafe(2).fill(0).fill("0102", "hex");
-  deepStrictEqualValues(genBuffer(4, [hexBufFill]), [1, 2, 1, 2]);
-  deepStrictEqualValues(genBuffer(4, [hexBufFill, 1]), [0, 1, 2, 1]);
-  deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, 3]), [0, 1, 2, 0]);
-  deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, 1]), [0, 0, 0, 0]);
-
-  // Check exceptions
-  [
-    [0, -1],
-    [0, 0, buf1.length + 1],
-    ["", -1],
-    ["", 0, buf1.length + 1],
-    ["", 1, -1],
-  ].forEach(args => {
-    expect(() => buf1.fill(...args)).toThrow();
-  });
-
-  expect(() => buf1.fill("a", 0, buf1.length, "node rocks!")).toThrow();
-
-  [
-    ["a", 0, 0, NaN],
-    ["a", 0, 0, false],
-  ].forEach(args => {
-    expect(() => buf1.fill(...args)).toThrow();
-  });
-
-  expect(() => buf1.fill("a", 0, 0, "foo")).toThrow();
-
-  function genBuffer(size, args) {
-    const b = Buffer.allocUnsafe(size);
-    return b.fill(0).fill.apply(b, args);
-  }
-
-  function bufReset() {
-    buf1.fill(0);
-    buf2.fill(0);
-  }
-
-  // This is mostly accurate. Except write() won't write partial bytes to the
-  // string while fill() blindly copies bytes into memory. To account for that an
-  // error will be thrown if not all the data can be written, and the SIZE has
-  // been massaged to work with the input characters.
-  function writeToFill(string, offset, end, encoding) {
-    if (typeof offset === "string") {
-      encoding = offset;
-      offset = 0;
-      end = buf2.length;
-    } else if (typeof end === "string") {
-      encoding = end;
-      end = buf2.length;
-    } else if (end === undefined) {
-      end = buf2.length;
-    }
-
-    // Should never be reached.
-    if (offset < 0 || end > buf2.length) throw new ERR_OUT_OF_RANGE();
-
-    if (end <= offset) return buf2;
-
-    offset >>>= 0;
-    end >>>= 0;
-    expect(offset <= buf2.length).toBe(true);
-
-    // Convert "end" to "length" (which write understands).
-    const length = end - offset < 0 ? 0 : end - offset;
-
-    let wasZero = false;
-    do {
-      const written = buf2.write(string, offset, length, encoding);
-      offset += written;
-      // Safety check in case write falls into infinite loop.
-      if (written === 0) {
-        if (wasZero) throw new Error("Could not write all data to Buffer at " + offset);
-        else wasZero = true;
-      }
-    } while (offset < buf2.length);
-
-    return buf2;
-  }
-
-  function testBufs(string, offset, length, encoding) {
-    bufReset();
-    buf1.fill.apply(buf1, arguments);
-    // Swap bytes on BE archs for ucs2 encoding.
-    expect(buf1.fill.apply(buf1, arguments)).toStrictEqual(writeToFill.apply(null, arguments));
-  }
-
-  // Make sure these throw.
-  expect(() => Buffer.allocUnsafe(8).fill("a", -1)).toThrow();
-  expect(() => Buffer.allocUnsafe(8).fill("a", 0, 9)).toThrow();
-
-  // Make sure this doesn't hang indefinitely.
-  Buffer.allocUnsafe(8).fill("");
-  Buffer.alloc(8, "");
-
-  {
-    const buf = Buffer.alloc(64, 10);
-    for (let i = 0; i < buf.length; i++) assertEqual(buf[i], 10);
-
-    buf.fill(11, 0, buf.length >> 1);
-    for (let i = 0; i < buf.length >> 1; i++) assertEqual(buf[i], 11);
-    for (let i = (buf.length >> 1) + 1; i < buf.length; i++) assertEqual(buf[i], 10);
-
-    buf.fill("h");
-    for (let i = 0; i < buf.length; i++) assertEqual(buf[i], "h".charCodeAt(0));
-
-    buf.fill(0);
-    for (let i = 0; i < buf.length; i++) assertEqual(buf[i], 0);
-
-    buf.fill(null);
-    for (let i = 0; i < buf.length; i++) assertEqual(buf[i], 0);
-
-    buf.fill(1, 16, 32);
-    for (let i = 0; i < 16; i++) assertEqual(buf[i], 0);
-    for (let i = 16; i < 32; i++) assertEqual(buf[i], 1);
-    for (let i = 32; i < buf.length; i++) assertEqual(buf[i], 0);
-  }
-
-  {
-    const buf = Buffer.alloc(10, "abc");
-    assertEqual(buf.toString(), "abcabcabca");
-    buf.fill("է");
-    assertEqual(buf.toString(), "էէէէէ");
-  }
-
-  // // Testing process.binding. Make sure "start" is properly checked for range
-  // // errors.
-  // assert.throws(
-  //   () => {
-  //     internalBinding("buffer").fill(Buffer.alloc(1), 1, -1, 0, 1);
-  //   },
-  //   { code: "ERR_OUT_OF_RANGE" },
-  // );
-
-  // Make sure "end" is properly checked, even if it's magically mangled using
-  // Symbol.toPrimitive.
-  {
-    expect(() => {
-      const end = {
-        [Symbol.toPrimitive]() {
-          return 1;
-        },
-      };
-      Buffer.alloc(1).fill(Buffer.alloc(1), 0, end);
-    }).toThrow();
-  }
-
-  // Testing process.binding. Make sure "end" is properly checked for range
-  // errors.
-  // assert.throws(
-  //   () => {
-  //     internalBinding("buffer").fill(Buffer.alloc(1), 1, 1, -2, 1);
-  //   },
-  //   { code: "ERR_OUT_OF_RANGE" },
-  // );
-
-  // Test that bypassing 'length' won't cause an abort.
-  expect(() => {
-    const buf = Buffer.from("w00t");
-    Object.defineProperty(buf, "length", {
-      value: 1337,
-      enumerable: true,
-    });
-    buf.fill("");
-  }).toThrow();
-
-  assertEqual(Buffer.allocUnsafeSlow(16).fill("ab", "utf16le"), Buffer.from("61006200610062006100620061006200", "hex"));
-
-  assertEqual(Buffer.allocUnsafeSlow(15).fill("ab", "utf16le"), Buffer.from("610062006100620061006200610062", "hex"));
-
-  assertEqual(Buffer.allocUnsafeSlow(16).fill("ab", "utf16le"), Buffer.from("61006200610062006100620061006200", "hex"));
-  assertEqual(Buffer.allocUnsafeSlow(16).fill("a", "utf16le"), Buffer.from("61006100610061006100610061006100", "hex"));
-
-  assertEqual(Buffer.allocUnsafeSlow(16).fill("a", "utf16le").toString("utf16le"), "a".repeat(8));
-  assertEqual(Buffer.allocUnsafeSlow(16).fill("a", "latin1").toString("latin1"), "a".repeat(16));
-  assertEqual(Buffer.allocUnsafeSlow(16).fill("a", "utf8").toString("utf8"), "a".repeat(16));
-
-  assertEqual(Buffer.allocUnsafeSlow(16).fill("Љ", "utf16le").toString("utf16le"), "Љ".repeat(8));
-  assertEqual(Buffer.allocUnsafeSlow(16).fill("Љ", "latin1").toString("latin1"), "\t".repeat(16));
-  assertEqual(Buffer.allocUnsafeSlow(16).fill("Љ", "utf8").toString("utf8"), "Љ".repeat(8));
-
-  expect(() => {
-    const buf = Buffer.from("a".repeat(1000));
-
-    buf.fill("This is not correctly encoded", "hex");
-  }).toThrow();
-});
-
-test("Buffer.byteLength", () => {
-  const SlowBuffer = require("buffer").SlowBuffer;
-
-  [[32, "latin1"], [NaN, "utf8"], [{}, "latin1"], []].forEach(args => {
-    assert.throws(() => Buffer.byteLength(...args));
-  });
-
-  assert.strictEqual(Buffer.byteLength("", undefined, true), 0);
-
-  assert(ArrayBuffer.isView(new Buffer(10)));
-  assert(ArrayBuffer.isView(new SlowBuffer(10)));
-  assert(ArrayBuffer.isView(Buffer.alloc(10)));
-  assert(ArrayBuffer.isView(Buffer.allocUnsafe(10)));
-  assert(ArrayBuffer.isView(Buffer.allocUnsafeSlow(10)));
-  assert(ArrayBuffer.isView(Buffer.from("")));
-
-  // buffer
-  const incomplete = Buffer.from([0xe4, 0xb8, 0xad, 0xe6, 0x96]);
-  assert.strictEqual(Buffer.byteLength(incomplete), 5);
-  const ascii = Buffer.from("abc");
-  assert.strictEqual(Buffer.byteLength(ascii), 3);
-
-  // ArrayBuffer
-  const buffer = new ArrayBuffer(8);
-  assert.strictEqual(Buffer.byteLength(buffer), 8);
-
-  // TypedArray
-  const int8 = new Int8Array(8);
-  assert.strictEqual(Buffer.byteLength(int8), 8);
-  const uint8 = new Uint8Array(8);
-  assert.strictEqual(Buffer.byteLength(uint8), 8);
-  const uintc8 = new Uint8ClampedArray(2);
-  assert.strictEqual(Buffer.byteLength(uintc8), 2);
-  const int16 = new Int16Array(8);
-  assert.strictEqual(Buffer.byteLength(int16), 16);
-  const uint16 = new Uint16Array(8);
-  assert.strictEqual(Buffer.byteLength(uint16), 16);
-  const int32 = new Int32Array(8);
-  assert.strictEqual(Buffer.byteLength(int32), 32);
-  const uint32 = new Uint32Array(8);
-  assert.strictEqual(Buffer.byteLength(uint32), 32);
-  const float32 = new Float32Array(8);
-  assert.strictEqual(Buffer.byteLength(float32), 32);
-  const float64 = new Float64Array(8);
-  assert.strictEqual(Buffer.byteLength(float64), 64);
-
-  // DataView
-  const dv = new DataView(new ArrayBuffer(2));
-  assert.strictEqual(Buffer.byteLength(dv), 2);
-
-  // Special case: zero length string
-  assert.strictEqual(Buffer.byteLength("", "ascii"), 0);
-  assert.strictEqual(Buffer.byteLength("", "HeX"), 0);
-
-  // utf8
-  assert.strictEqual(Buffer.byteLength("∑éllö wørl∂!", "utf-8"), 19);
-  assert.strictEqual(Buffer.byteLength("κλμνξο", "utf8"), 12);
-  assert.strictEqual(Buffer.byteLength("挵挶挷挸挹", "utf-8"), 15);
-  assert.strictEqual(Buffer.byteLength("𠝹𠱓𠱸", "UTF8"), 12);
-  // Without an encoding, utf8 should be assumed
-  assert.strictEqual(Buffer.byteLength("hey there"), 9);
-  assert.strictEqual(Buffer.byteLength("𠱸挶νξ#xx :)"), 17);
-  assert.strictEqual(Buffer.byteLength("hello world", ""), 11);
-  // It should also be assumed with unrecognized encoding
-  assert.strictEqual(Buffer.byteLength("hello world", "abc"), 11);
-  assert.strictEqual(Buffer.byteLength("ßœ∑≈", "unkn0wn enc0ding"), 10);
-
-  // base64
-  assert.strictEqual(Buffer.byteLength("aGVsbG8gd29ybGQ=", "base64"), 11);
-  assert.strictEqual(Buffer.byteLength("aGVsbG8gd29ybGQ=", "BASE64"), 11);
-  assert.strictEqual(Buffer.byteLength("bm9kZS5qcyByb2NrcyE=", "base64"), 14);
-  assert.strictEqual(Buffer.byteLength("aGkk", "base64"), 3);
-  assert.strictEqual(Buffer.byteLength("bHNrZGZsa3NqZmtsc2xrZmFqc2RsZmtqcw==", "base64"), 25);
-  // base64url
-  assert.strictEqual(Buffer.byteLength("aGVsbG8gd29ybGQ", "base64url"), 11);
-  assert.strictEqual(Buffer.byteLength("aGVsbG8gd29ybGQ", "BASE64URL"), 11);
-  assert.strictEqual(Buffer.byteLength("bm9kZS5qcyByb2NrcyE", "base64url"), 14);
-  assert.strictEqual(Buffer.byteLength("aGkk", "base64url"), 3);
-  assert.strictEqual(Buffer.byteLength("bHNrZGZsa3NqZmtsc2xrZmFqc2RsZmtqcw", "base64url"), 25);
-  // special padding
-  assert.strictEqual(Buffer.byteLength("aaa=", "base64"), 2);
-  assert.strictEqual(Buffer.byteLength("aaaa==", "base64"), 3);
-  assert.strictEqual(Buffer.byteLength("aaa=", "base64url"), 2);
-  assert.strictEqual(Buffer.byteLength("aaaa==", "base64url"), 3);
-  assert.strictEqual(Buffer.byteLength("Il était tué", "utf8"), 14);
-  assert.strictEqual(Buffer.byteLength("Il était tué"), 14);
-
-  ["ascii", "latin1", "binary"]
-    .reduce((es, e) => es.concat(e, e.toUpperCase()), [])
-    .forEach(encoding => {
-      assert.strictEqual(Buffer.byteLength("Il était tué", encoding), 12);
-    });
-
-  ["ucs2", "ucs-2", "utf16le", "utf-16le"]
-    .reduce((es, e) => es.concat(e, e.toUpperCase()), [])
-    .forEach(encoding => {
-      assert.strictEqual(Buffer.byteLength("Il était tué", encoding), 24);
-    });
-
-  // Test that ArrayBuffer from a different context is detected correctly
-  // const arrayBuf = vm.runInNewContext("new ArrayBuffer()");
-  // assert.strictEqual(Buffer.byteLength(arrayBuf), 0);
-
-  // Verify that invalid encodings are treated as utf8
-  for (let i = 1; i < 10; i++) {
-    const encoding = String(i).repeat(i);
-
-    assert.ok(!Buffer.isEncoding(encoding));
-    assert.strictEqual(Buffer.byteLength("foo", encoding), Buffer.byteLength("foo", "utf8"));
-  }
-});
-
-it("should not crash on invalid UTF-8 byte sequence", () => {
-  const buf = Buffer.from([0xc0, 0xfd]);
-  expect(buf.length).toBe(2);
-  const str = buf.toString();
-  expect(str.length).toBe(2);
-  expect(str).toBe("\uFFFD\uFFFD");
-});
-
-it("should not crash on invalid UTF-8 byte sequence with ASCII head", () => {
-  const buf = Buffer.from([0x42, 0xc0, 0xfd]);
-  expect(buf.length).toBe(3);
-  const str = buf.toString();
-  expect(str.length).toBe(3);
-  expect(str).toBe("B\uFFFD\uFFFD");
-});
-
-it("should not perform out-of-bound access on invalid UTF-8 byte sequence", () => {
-  const buf = Buffer.from([0x01, 0x9a, 0x84, 0x13, 0x12, 0x11, 0x10, 0x09]).subarray(2);
-  expect(buf.length).toBe(6);
-  const str = buf.toString();
-  expect(str.length).toBe(6);
-  expect(str).toBe("\uFFFD\x13\x12\x11\x10\x09");
-});
-
-it("repro #2063", () => {
-  const buf = Buffer.from(
-    "eyJlbWFpbCI6Ijg3MTg4NDYxN0BxcS5jb20iLCJpZCI6OCwicm9sZSI6Im5vcm1hbCIsImlhdCI6MTY3NjI4NDQyMSwiZXhwIjoxNjc2ODg5MjIxfQ",
-    "base64",
-  );
-  expect(buf.length).toBe(85);
-  expect(buf[82]).toBe(50);
-  expect(buf[83]).toBe(49);
-  expect(buf[84]).toBe(125);
-});