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Diffstat (limited to 'test/bun.js/buffer.test.js')
| -rw-r--r-- | test/bun.js/buffer.test.js | 2563 |
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); -}); |