// import { Buffer, SlowBuffer, isAscii, isUtf8 } from "buffer"; import { describe, it, expect, beforeEach, afterEach } from "bun:test"; import { gc } from "harness"; // console.log("0"); // const BufferModule = await import("buffer"); console.log("1"); // beforeEach(() => gc()); // afterEach(() => gc()); it("isAscii", () => { // expect(isAscii(new Buffer("abc"))).toBeTrue(); // expect(isAscii(new Buffer(""))).toBeTrue(); // expect(isAscii(new Buffer([32, 32, 128]))).toBeFalse(); // expect(isAscii(new Buffer("What did the 🦊 say?"))).toBeFalse(); // expect(isAscii(new Buffer("").buffer)).toBeTrue(); // expect(isAscii(new Buffer([32, 32, 128]).buffer)).toBeFalse(); }); // it("isUtf8", () => { // expect(isUtf8(new Buffer("abc"))).toBeTrue(); // expect(isAscii(new Buffer(""))).toBeTrue(); // expect(isUtf8(new Buffer("What did the 🦊 say?"))).toBeTrue(); // expect(isUtf8(new Buffer([129, 129, 129]))).toBeFalse(); // expect(isUtf8(new Buffer("abc").buffer)).toBeTrue(); // expect(isAscii(new Buffer("").buffer)).toBeTrue(); // expect(isUtf8(new Buffer("What did the 🦊 say?").buffer)).toBeTrue(); // expect(isUtf8(new Buffer([129, 129, 129]).buffer)).toBeFalse(); // }); // // 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("length overflow", () => { // // Verify the maximum Uint8Array size. There is no concrete limit by spec. The // // internal limits should be updated if this fails. // expect(() => new Uint8Array(2 ** 32 + 1)).toThrow(/length/); // }); // it("truncate input values", () => { // const b = Buffer.allocUnsafe(1024); // expect(b.length).toBe(1024); // b[0] = -1; // expect(b[0]).toBe(255); // for (let i = 0; i < 1024; i++) { // b[i] = i; // } // for (let i = 0; i < 1024; i++) { // expect(i % 256).toBe(b[i]); // } // }); // it("Buffer.allocUnsafe()", () => { // const c = Buffer.allocUnsafe(512); // expect(c.length).toBe(512); // }); // it("Buffer.from()", () => { // const d = Buffer.from([]); // expect(d.length).toBe(0); // }); // it("offset properties", () => { // const b = Buffer.alloc(128); // expect(b.length).toBe(128); // expect(b.byteOffset).toBe(0); // expect(b.offset).toBe(0); // }); // it("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()) { // expect(value).toBe(ui32[index]); // } // }); // it("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()) { // expect(value).toBe(ui32[key]); // } // }); // it("invalid encoding", () => { // const b = Buffer.allocUnsafe(64); // // Test invalid encoding for Buffer.toString // expect(() => b.toString("invalid")).toThrow(/encoding/); // // Invalid encoding for Buffer.write // expect(() => b.write("test string", 0, 5, "invalid")).toThrow(/encoding/); // // Unsupported arguments for Buffer.write // expect(() => b.write("test", "utf8", 0)).toThrow(/invalid/i); // }); // it("create 0-length buffers", () => { // 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); // }); // it("write() beyond end of buffer", () => { // const b = Buffer.allocUnsafe(64); // // Try to write a 0-length string beyond the end of b // expect(() => b.write("", 2048)).toThrow(RangeError); // // Throw when writing to negative offset // expect(() => b.write("a", -1)).toThrow(RangeError); // // Throw when writing past bounds from the pool // expect(() => b.write("a", 2048)).toThrow(RangeError); // // Throw when writing to negative offset // expect(() => b.write("a", -1)).toThrow(RangeError); // // 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); // }); // it("copy() beyond end of buffer", () => { // const b = Buffer.allocUnsafe(64); // // 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); // }); // it("smart defaults and ability to pass string values as offset", () => { // const writeTest = Buffer.from("abcdes"); // writeTest.write("n", "ascii"); // expect(() => writeTest.write("o", "1", "ascii")).toThrow(/offset/); // writeTest.write("o", 1, "ascii"); // writeTest.write("d", 2, "ascii"); // writeTest.write("e", 3, "ascii"); // writeTest.write("j", 4, "ascii"); // expect(writeTest.toString()).toBe("nodejs"); // }); // it("ASCII slice", () => { // const buf = Buffer.allocUnsafe(256); // const str = "hello world"; // for (let i = 0; i < str.length; i++) { // buf[i] = str.charCodeAt(i); // } // expect(buf.toString("ascii", 0, str.length)).toBe(str); // const offset = 100; // expect(buf.write(str, offset, "ascii")).toBe(str.length); // expect(buf.toString("ascii", offset, offset + str.length)).toBe(str); // const slice1 = buf.slice(offset, offset + str.length); // const slice2 = buf.slice(offset, offset + str.length); // for (let i = 0; i < str.length; i++) { // expect(slice1[i]).toBe(slice2[i]); // } // }); // it("UTF-8 slice", () => { // const b = Buffer.allocUnsafe(256); // const utf8String = "Β‘hΞ­llΓ³ wΓ΄rld!"; // const offset = 100; // b.write(utf8String, 0, Buffer.byteLength(utf8String), "utf8"); // expect(b.toString("utf8", 0, Buffer.byteLength(utf8String))).toBe(utf8String); // expect(b.write(utf8String, offset, "utf8")).toBe(Buffer.byteLength(utf8String)); // expect(b.toString("utf8", offset, offset + Buffer.byteLength(utf8String))).toBe(utf8String); // 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++) { // expect(sliceA[i]).toBe(sliceB[i]); // } // const slice = b.slice(100, 150); // expect(slice.length).toBe(50); // for (let i = 0; i < 50; i++) { // expect(b[100 + i]).toBe(slice[i]); // } // }); // it("only top level parent propagates from allocPool", () => { // const b = Buffer.allocUnsafe(5); // const c = b.slice(0, 4); // const d = c.slice(0, 2); // expect(b.parent).toBe(c.parent); // expect(b.parent).toBe(d.parent); // }); // it("only top level parent propagates from a non-pooled instance", () => { // const b = Buffer.allocUnsafeSlow(5); // const c = b.slice(0, 4); // const d = c.slice(0, 2); // expect(c.parent).toBe(d.parent); // }); // it("UTF-8 write() & slice()", () => { // const testValue = "\u00F6\u65E5\u672C\u8A9E"; // ΓΆζ—₯本θͺž // const buffer = Buffer.allocUnsafe(32); // const size = buffer.write(testValue, 0, "utf8"); // const slice = buffer.toString("utf8", 0, size); // expect(slice).toBe(testValue); // }); // it("triple slice", () => { // const a = Buffer.allocUnsafe(8); // for (let i = 0; i < 8; i++) a[i] = i; // const b = a.slice(4, 8); // expect(b[0]).toBe(4); // expect(b[1]).toBe(5); // expect(b[2]).toBe(6); // expect(b[3]).toBe(7); // const c = b.slice(2, 4); // expect(c[0]).toBe(6); // expect(c[1]).toBe(7); // }); // it("Buffer.from() with encoding", () => { // const b = Buffer.from([23, 42, 255]); // expect(b.length).toBe(3); // expect(b[0]).toBe(23); // expect(b[1]).toBe(42); // expect(b[2]).toBe(255); // expect(Buffer.from(b)).toStrictEqual(b); // // Test for proper UTF-8 Encoding // expect(Buffer.from("ΓΌber")).toStrictEqual(Buffer.from([195, 188, 98, 101, 114])); // // Test for proper ascii Encoding, length should be 4 // expect(Buffer.from("ΓΌber", "ascii")).toStrictEqual(Buffer.from([252, 98, 101, 114])); // ["ucs2", "ucs-2", "utf16le", "utf-16le"].forEach(encoding => { // // Test for proper UTF16LE encoding, length should be 8 // expect(Buffer.from("ΓΌber", encoding)).toStrictEqual(Buffer.from([252, 0, 98, 0, 101, 0, 114, 0])); // // Length should be 12 // const b = Buffer.from("ΠΏΡ€ΠΈΠ²Π΅Ρ‚", encoding); // expect(b).toStrictEqual(Buffer.from([63, 4, 64, 4, 56, 4, 50, 4, 53, 4, 66, 4])); // expect(b.toString(encoding)).toBe("ΠΏΡ€ΠΈΠ²Π΅Ρ‚"); // const c = Buffer.from([0, 0, 0, 0, 0]); // expect(c.length).toBe(5); // expect(c.write("γ‚γ„γ†γˆγŠ", encoding)).toBe(4); // expect(c).toStrictEqual(Buffer.from([0x42, 0x30, 0x44, 0x30, 0x00])); // }); // const c = Buffer.from("\uD83D\uDC4D", "utf-16le"); // THUMBS UP SIGN (U+1F44D) // expect(c.length).toBe(4); // expect(c).toStrictEqual(Buffer.from("3DD84DDC", "hex")); // }); // it("construction from arrayish object", () => { // const arrayIsh = { 0: 0, 1: 1, 2: 2, 3: 3, length: 4 }; // expect(Buffer.from(arrayIsh)).toStrictEqual(Buffer.from([0, 1, 2, 3])); // const strArrayIsh = { 0: "0", 1: "1", 2: "2", 3: "3", length: 4 }; // expect(Buffer.from(strArrayIsh)).toStrictEqual(Buffer.from([0, 1, 2, 3])); // }); // it("toString('base64')", () => { // expect(Buffer.from("Man").toString("base64")).toBe("TWFu"); // expect(Buffer.from("Woman").toString("base64")).toBe("V29tYW4="); // }); // it("toString('base64url')", () => { // expect(Buffer.from("Man").toString("base64url")).toBe("TWFu"); // expect(Buffer.from("Woman").toString("base64url")).toBe("V29tYW4"); // }); // it("regular and URL-safe base64 work both ways", () => { // const expected = [0xff, 0xff, 0xbe, 0xff, 0xef, 0xbf, 0xfb, 0xef, 0xff]; // expect(Buffer.from("//++/++/++//", "base64")).toStrictEqual(Buffer.from(expected)); // expect(Buffer.from("__--_--_--__", "base64")).toStrictEqual(Buffer.from(expected)); // expect(Buffer.from("//++/++/++//", "base64url")).toStrictEqual(Buffer.from(expected)); // expect(Buffer.from("__--_--_--__", "base64url")).toStrictEqual(Buffer.from(expected)); // }); // it("regular and URL-safe base64 work both ways with padding", () => { // const expected = [0xff, 0xff, 0xbe, 0xff, 0xef, 0xbf, 0xfb, 0xef, 0xff, 0xfb]; // expect(Buffer.from("//++/++/++//+w==", "base64")).toStrictEqual(Buffer.from(expected)); // expect(Buffer.from("//++/++/++//+w==", "base64")).toStrictEqual(Buffer.from(expected)); // expect(Buffer.from("//++/++/++//+w==", "base64url")).toStrictEqual(Buffer.from(expected)); // expect(Buffer.from("//++/++/++//+w==", "base64url")).toStrictEqual(Buffer.from(expected)); // }); // it("big example (base64 & base64url)", () => { // 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="; // expect(Buffer.from(quote).toString("base64")).toBe(expected); // expect(Buffer.from(quote).toString("base64url")).toBe( // expected.replaceAll("+", "-").replaceAll("/", "_").replaceAll("=", ""), // ); // }); // function forEachBase64(label, test) { // ["base64", "base64url"].forEach(encoding => it(`${label} (${encoding})`, test.bind(null, encoding))); // } // forEachBase64("big example", encoding => { // 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="; // const b = Buffer.allocUnsafe(1024); // expect(b.write(expected, 0, encoding)).toBe(quote.length); // expect(b.toString("ascii", 0, quote.length)).toBe(quote); // // Check that the base64 decoder ignores whitespace // const white = // `${expected.slice(0, 60)} \n` + // `${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`; // const c = Buffer.allocUnsafe(1024); // expect(c.write(white, 0, encoding)).toBe(quote.length); // expect(c.toString("ascii", 0, quote.length)).toBe(quote); // // Check that the base64 decoder on the constructor works // // even in the presence of whitespace. // const d = Buffer.from(white, encoding); // expect(d.length).toBe(quote.length); // expect(d.toString("ascii", 0, quote.length)).toBe(quote); // // Check that the base64 decoder ignores illegal chars // const illegal = // 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); // const e = Buffer.from(illegal, encoding); // expect(e.length).toBe(quote.length); // expect(e.toString("ascii", 0, quote.length)).toBe(quote); // }); // forEachBase64("padding", encoding => { // expect(Buffer.from("", encoding).toString()).toBe(""); // expect(Buffer.from("K", encoding).toString()).toBe(""); // // multiple-of-4 with padding // expect(Buffer.from("Kg==", encoding).toString()).toBe("*"); // expect(Buffer.from("Kio=", encoding).toString()).toBe("*".repeat(2)); // expect(Buffer.from("Kioq", encoding).toString()).toBe("*".repeat(3)); // expect(Buffer.from("KioqKg==", encoding).toString()).toBe("*".repeat(4)); // expect(Buffer.from("KioqKio=", encoding).toString()).toBe("*".repeat(5)); // expect(Buffer.from("KioqKioq", encoding).toString()).toBe("*".repeat(6)); // expect(Buffer.from("KioqKioqKg==", encoding).toString()).toBe("*".repeat(7)); // expect(Buffer.from("KioqKioqKio=", encoding).toString()).toBe("*".repeat(8)); // expect(Buffer.from("KioqKioqKioq", encoding).toString()).toBe("*".repeat(9)); // expect(Buffer.from("KioqKioqKioqKg==", encoding).toString()).toBe("*".repeat(10)); // expect(Buffer.from("KioqKioqKioqKio=", encoding).toString()).toBe("*".repeat(11)); // expect(Buffer.from("KioqKioqKioqKioq", encoding).toString()).toBe("*".repeat(12)); // expect(Buffer.from("KioqKioqKioqKioqKg==", encoding).toString()).toBe("*".repeat(13)); // expect(Buffer.from("KioqKioqKioqKioqKio=", encoding).toString()).toBe("*".repeat(14)); // expect(Buffer.from("KioqKioqKioqKioqKioq", encoding).toString()).toBe("*".repeat(15)); // expect(Buffer.from("KioqKioqKioqKioqKioqKg==", encoding).toString()).toBe("*".repeat(16)); // expect(Buffer.from("KioqKioqKioqKioqKioqKio=", encoding).toString()).toBe("*".repeat(17)); // expect(Buffer.from("KioqKioqKioqKioqKioqKioq", encoding).toString()).toBe("*".repeat(18)); // expect(Buffer.from("KioqKioqKioqKioqKioqKioqKg==", encoding).toString()).toBe("*".repeat(19)); // expect(Buffer.from("KioqKioqKioqKioqKioqKioqKio=", encoding).toString()).toBe("*".repeat(20)); // // No padding, not a multiple of 4 // expect(Buffer.from("Kg", encoding).toString()).toBe("*"); // expect(Buffer.from("Kio", encoding).toString()).toBe("*".repeat(2)); // expect(Buffer.from("KioqKg", encoding).toString()).toBe("*".repeat(4)); // expect(Buffer.from("KioqKio", encoding).toString()).toBe("*".repeat(5)); // expect(Buffer.from("KioqKioqKg", encoding).toString()).toBe("*".repeat(7)); // expect(Buffer.from("KioqKioqKio", encoding).toString()).toBe("*".repeat(8)); // expect(Buffer.from("KioqKioqKioqKg", encoding).toString()).toBe("*".repeat(10)); // expect(Buffer.from("KioqKioqKioqKio", encoding).toString()).toBe("*".repeat(11)); // expect(Buffer.from("KioqKioqKioqKioqKg", encoding).toString()).toBe("*".repeat(13)); // expect(Buffer.from("KioqKioqKioqKioqKio", encoding).toString()).toBe("*".repeat(14)); // expect(Buffer.from("KioqKioqKioqKioqKioqKg", encoding).toString()).toBe("*".repeat(16)); // expect(Buffer.from("KioqKioqKioqKioqKioqKio", encoding).toString()).toBe("*".repeat(17)); // expect(Buffer.from("KioqKioqKioqKioqKioqKioqKg", encoding).toString()).toBe("*".repeat(19)); // expect(Buffer.from("KioqKioqKioqKioqKioqKioqKio", encoding).toString()).toBe("*".repeat(20)); // // Handle padding graciously, multiple-of-4 or not // expect(Buffer.from("72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw==", encoding).length).toBe(32); // expect(Buffer.from("72INjkR5fchcxk9-VgdGPFJDxUBFR5_rMFsghgxADiw==", encoding).length).toBe(32); // expect(Buffer.from("72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw=", encoding).length).toBe(32); // expect(Buffer.from("72INjkR5fchcxk9-VgdGPFJDxUBFR5_rMFsghgxADiw=", encoding).length).toBe(32); // expect(Buffer.from("72INjkR5fchcxk9+VgdGPFJDxUBFR5/rMFsghgxADiw", encoding).length).toBe(32); // expect(Buffer.from("72INjkR5fchcxk9-VgdGPFJDxUBFR5_rMFsghgxADiw", encoding).length).toBe(32); // expect(Buffer.from("w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg==", encoding).length).toBe(31); // expect(Buffer.from("w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg=", encoding).length).toBe(31); // expect(Buffer.from("w69jACy6BgZmaFvv96HG6MYksWytuZu3T1FvGnulPg", encoding).length).toBe(31); // }); // it("encodes single '.' character in UTF-16", () => { // const padded = Buffer.from("//4uAA==", "base64"); // expect(padded[0]).toBe(0xff); // expect(padded[1]).toBe(0xfe); // expect(padded[2]).toBe(0x2e); // expect(padded[3]).toBe(0x00); // expect(padded.toString("base64")).toBe("//4uAA=="); // const dot = Buffer.from("//4uAA", "base64url"); // expect(dot[0]).toBe(0xff); // expect(dot[1]).toBe(0xfe); // expect(dot[2]).toBe(0x2e); // expect(dot[3]).toBe(0x00); // expect(dot.toString("base64url")).toBe("__4uAA"); // }); // // https://github.com/joyent/node/issues/402 // it("writing base64 at a position > 0 should not mangle the result", () => { // 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"); // } // expect(b.toString("latin1", 0, pos)).toBe("Madness?! This is node.js!"); // }); // // https://github.com/joyent/node/issues/402 // it("writing base64url at a position > 0 should not mangle the result", () => { // 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"); // } // expect(b.toString("latin1", 0, pos)).toBe("Madness?! This is node.js!"); // }); // it("regression tests from Node.js", () => { // // Regression test for https://github.com/nodejs/node/issues/3496. // expect(Buffer.from("=bad".repeat(1e4), "base64").length).toBe(0); // // Regression test for https://github.com/nodejs/node/issues/11987. // expect(Buffer.from("w0 ", "base64")).toStrictEqual(Buffer.from("w0", "base64")); // // Regression test for https://github.com/nodejs/node/issues/13657. // expect(Buffer.from(" YWJvcnVtLg", "base64")).toStrictEqual(Buffer.from("YWJvcnVtLg", "base64")); // // issue GH-3416 // Buffer.from(Buffer.allocUnsafe(0), 0, 0); // // Regression test for https://github.com/nodejs/node-v0.x-archive/issues/5482: // // should throw but not assert in C++ land. // expect(() => Buffer.from("", "buffer")).toThrow(/encoding/); // }); // it("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++) { // expect(b[i]).toBe("h".charCodeAt(0)); // } // const sb = b.toString(); // expect(sb.length).toBe(s.length); // expect(sb).toBe(s); // }); // it("hex toString()", () => { // const hexb = Buffer.allocUnsafe(256); // for (let i = 0; i < 256; i++) { // hexb[i] = i; // } // const hexStr = hexb.toString("hex"); // expect(hexStr).toBe( // "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++) { // expect(hexb2[i]).toBe(hexb[i]); // } // }); // it("single hex character is discarded", () => { // expect(Buffer.from("A", "hex").length).toBe(0); // }); // it("if a trailing character is discarded, rest of string is processed", () => { // expect(Buffer.from("Abx", "hex")).toEqual(Buffer.from("Ab", "hex")); // }); // it("single base64 char encodes as 0", () => { // expect(Buffer.from("A", "base64").length).toBe(0); // }); // it("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); // expect(b2).toBe(b3); // expect(b2).toBe(b4); // }); // it("slice()", () => { // 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]); // expect(x).toStrictEqual(Buffer.from([0x81, 0xa3, 0x66, 0x6f, 0x6f, 0xa3, 0x62, 0x61, 0x72])); // const a = x.slice(4); // expect(a.length).toBe(5); // expect(a[0]).toBe(0x6f); // expect(a[1]).toBe(0xa3); // expect(a[2]).toBe(0x62); // expect(a[3]).toBe(0x61); // expect(a[4]).toBe(0x72); // const b = x.slice(0); // expect(b.length).toBe(x.length); // const c = x.slice(0, 4); // expect(c.length).toBe(4); // expect(c[0]).toBe(0x81); // expect(c[1]).toBe(0xa3); // const d = x.slice(0, 9); // expect(d.length).toBe(9); // const e = x.slice(1, 4); // expect(e.length).toBe(3); // expect(e[0]).toBe(0xa3); // const f = x.slice(2, 4); // expect(f.length).toBe(2); // expect(f[0]).toBe(0x66); // expect(f[1]).toBe(0x6f); // }); // function forEachUnicode(label, test) { // ["ucs2", "ucs-2", "utf16le", "utf-16le"].forEach(encoding => it(`${label} (${encoding})`, test.bind(null, encoding))); // } // forEachUnicode("write()", encoding => { // const b = Buffer.allocUnsafe(10); // b.write("γ‚γ„γ†γˆγŠ", encoding); // expect(b.toString(encoding)).toBe("γ‚γ„γ†γˆγŠ"); // }); // forEachUnicode("write() with offset", encoding => { // const b = Buffer.allocUnsafe(11); // b.write("γ‚γ„γ†γˆγŠ", 1, encoding); // expect(b.toString(encoding, 1)).toBe("γ‚γ„γ†γˆγŠ"); // }); // it("latin1 encoding should write only one byte per character", () => { // const b = Buffer.from([0xde, 0xad, 0xbe, 0xef]); // b.write(String.fromCharCode(0xffff), 0, "latin1"); // expect(b[0]).toBe(0xff); // expect(b[1]).toBe(0xad); // expect(b[2]).toBe(0xbe); // expect(b[3]).toBe(0xef); // b.write(String.fromCharCode(0xaaee), 0, "latin1"); // expect(b[0]).toBe(0xee); // expect(b[1]).toBe(0xad); // expect(b[2]).toBe(0xbe); // expect(b[3]).toBe(0xef); // }); // it("binary encoding should write only one byte per character", () => { // const b = Buffer.from([0xde, 0xad, 0xbe, 0xef]); // b.write(String.fromCharCode(0xffff), 0, "latin1"); // expect(b[0]).toBe(0xff); // expect(b[1]).toBe(0xad); // expect(b[2]).toBe(0xbe); // expect(b[3]).toBe(0xef); // b.write(String.fromCharCode(0xaaee), 0, "latin1"); // expect(b[0]).toBe(0xee); // expect(b[1]).toBe(0xad); // expect(b[2]).toBe(0xbe); // expect(b[3]).toBe(0xef); // }); // it("UTF-8 string includes null character", () => { // // https://github.com/nodejs/node-v0.x-archive/pull/1210 // expect(Buffer.from("\0").length).toBe(1); // expect(Buffer.from("\0\0").length).toBe(2); // }); // it("truncate write() at character boundary", () => { // const buf = Buffer.allocUnsafe(2); // expect(buf.write("")).toBe(0); // 0bytes // expect(buf.write("\0")).toBe(1); // 1byte (v8 adds null terminator) // expect(buf.write("a\0")).toBe(2); // 1byte * 2 // expect(buf.write("あ")).toBe(0); // 3bytes // expect(buf.write("\0あ")).toBe(1); // 1byte + 3bytes // expect(buf.write("\0\0あ")).toBe(2); // 1byte * 2 + 3bytes // const buf2 = Buffer.allocUnsafe(10); // expect(buf2.write("あいう")).toBe(9); // 3bytes * 3 (v8 adds null term.) // expect(buf2.write("あいう\0")).toBe(10); // 3bytes * 3 + 1byte // }); // it("write() with maxLength", () => { // // https://github.com/nodejs/node-v0.x-archive/issues/243 // const buf = Buffer.allocUnsafe(4); // buf.fill(0xff); // expect(buf.write("abcd", 1, 2, "utf8")).toBe(2); // expect(buf[0]).toBe(0xff); // expect(buf[1]).toBe(0x61); // expect(buf[2]).toBe(0x62); // expect(buf[3]).toBe(0xff); // buf.fill(0xff); // expect(buf.write("abcd", 1, 4)).toBe(3); // expect(buf[0]).toBe(0xff); // expect(buf[1]).toBe(0x61); // expect(buf[2]).toBe(0x62); // expect(buf[3]).toBe(0x63); // buf.fill(0xff); // expect(buf.write("abcd", 1, 2, "utf8")).toBe(2); // expect(buf[0]).toBe(0xff); // expect(buf[1]).toBe(0x61); // expect(buf[2]).toBe(0x62); // expect(buf[3]).toBe(0xff); // buf.fill(0xff); // expect(buf.write("abcdef", 1, 2, "hex")).toBe(2); // expect(buf[0]).toBe(0xff); // expect(buf[1]).toBe(0xab); // expect(buf[2]).toBe(0xcd); // expect(buf[3]).toBe(0xff); // ["ucs2", "ucs-2", "utf16le", "utf-16le"].forEach(encoding => { // buf.fill(0xff); // expect(buf.write("abcd", 0, 2, encoding)).toBe(2); // expect(buf[0]).toBe(0x61); // expect(buf[1]).toBe(0x00); // expect(buf[2]).toBe(0xff); // expect(buf[3]).toBe(0xff); // }); // }); // it("offset returns are correct", () => { // const b = Buffer.allocUnsafe(16); // expect(b.writeUInt32LE(0, 0)).toBe(4); // expect(b.writeUInt16LE(0, 4)).toBe(6); // expect(b.writeUInt8(0, 6)).toBe(7); // expect(b.writeInt8(0, 7)).toBe(8); // expect(b.writeDoubleLE(0, 8)).toBe(16); // }); // it("unmatched surrogates should not produce 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"); // expect(buf[0]).toBe(0x61); // expect(buf[1]).toBe(0x62); // expect(buf[2]).toBe(0xef); // expect(buf[3]).toBe(0xbf); // expect(buf[4]).toBe(0xbd); // expect(buf[5]).toBe(0x63); // expect(buf[6]).toBe(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); // }); // it("buffer overrun", () => { // const buf = Buffer.from([0, 0, 0, 0, 0]); // length: 5 // const sub = buf.slice(0, 4); // length: 4 // expect(sub.write("12345", "latin1")).toBe(4); // expect(buf[4]).toBe(0); // expect(sub.write("12345", "binary")).toBe(4); // expect(buf[4]).toBe(0); // }); // it("alloc with fill option", () => { // const buf = Buffer.alloc(5, "800A", "hex"); // expect(buf[0]).toBe(128); // expect(buf[1]).toBe(10); // expect(buf[2]).toBe(128); // expect(buf[3]).toBe(10); // expect(buf[4]).toBe(128); // }); // // https://github.com/joyent/node/issues/1758 // it("check for fractional length args, junk length args, etc.", () => { // // 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(); // expect(Buffer.allocUnsafe(3.3).length).toBe(3); // expect(Buffer.from({ length: 3.3 }).length).toBe(3); // expect(Buffer.from({ length: "BAM" }).length).toBe(0); // // Make sure that strings are not coerced to numbers. // expect(Buffer.from("99").length).toBe(2); // expect(Buffer.from("13.37").length).toBe(5); // // Ensure that the length argument is respected. // ["ascii", "utf8", "hex", "base64", "latin1", "binary"].forEach(enc => { // expect(Buffer.allocUnsafe(1).write("aaaaaa", 0, 1, enc)).toBe(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"); // expect(b.toString()).toBe("xxx"); // }); // it("buffer overflow", () => { // // issue GH-5587 // expect(() => Buffer.alloc(8).writeFloatLE(0, 5)).toThrow(RangeError); // expect(() => Buffer.alloc(16).writeDoubleLE(0, 9)).toThrow(RangeError); // // Attempt to overflow buffers, similar to previous bug in array buffers // expect(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, 0xffffffff)).toThrow(RangeError); // expect(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, 0xffffffff)).toThrow(RangeError); // // Ensure negative values can't get past offset // expect(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, -1)).toThrow(RangeError); // expect(() => Buffer.allocUnsafe(8).writeFloatLE(0.0, -1)).toThrow(RangeError); // }); // it("common write{U}IntLE/BE()", () => { // let buf = Buffer.allocUnsafe(3); // buf.writeUIntLE(0x123456, 0, 3); // expect(buf.toJSON().data).toEqual([0x56, 0x34, 0x12]); // expect(buf.readUIntLE(0, 3)).toBe(0x123456); // buf.fill(0xff); // buf.writeUIntBE(0x123456, 0, 3); // expect(buf.toJSON().data).toEqual([0x12, 0x34, 0x56]); // expect(buf.readUIntBE(0, 3)).toBe(0x123456); // buf.fill(0xff); // buf.writeIntLE(0x123456, 0, 3); // expect(buf.toJSON().data).toEqual([0x56, 0x34, 0x12]); // expect(buf.readIntLE(0, 3)).toBe(0x123456); // buf.fill(0xff); // buf.writeIntBE(0x123456, 0, 3); // expect(buf.toJSON().data).toEqual([0x12, 0x34, 0x56]); // expect(buf.readIntBE(0, 3)).toBe(0x123456); // buf.fill(0xff); // buf.writeIntLE(-0x123456, 0, 3); // expect(buf.toJSON().data).toEqual([0xaa, 0xcb, 0xed]); // expect(buf.readIntLE(0, 3)).toBe(-0x123456); // buf.fill(0xff); // buf.writeIntBE(-0x123456, 0, 3); // expect(buf.toJSON().data).toEqual([0xed, 0xcb, 0xaa]); // expect(buf.readIntBE(0, 3)).toBe(-0x123456); // buf.fill(0xff); // buf.writeIntLE(-0x123400, 0, 3); // expect(buf.toJSON().data).toEqual([0x00, 0xcc, 0xed]); // expect(buf.readIntLE(0, 3)).toBe(-0x123400); // buf.fill(0xff); // buf.writeIntBE(-0x123400, 0, 3); // expect(buf.toJSON().data).toEqual([0xed, 0xcc, 0x00]); // expect(buf.readIntBE(0, 3)).toBe(-0x123400); // buf.fill(0xff); // buf.writeIntLE(-0x120000, 0, 3); // expect(buf.toJSON().data).toEqual([0x00, 0x00, 0xee]); // expect(buf.readIntLE(0, 3)).toBe(-0x120000); // buf.fill(0xff); // buf.writeIntBE(-0x120000, 0, 3); // expect(buf.toJSON().data).toEqual([0xee, 0x00, 0x00]); // expect(buf.readIntBE(0, 3)).toBe(-0x120000); // buf = Buffer.allocUnsafe(5); // buf.writeUIntLE(0x1234567890, 0, 5); // expect(buf.toJSON().data).toEqual([0x90, 0x78, 0x56, 0x34, 0x12]); // expect(buf.readUIntLE(0, 5)).toBe(0x1234567890); // buf.fill(0xff); // buf.writeUIntBE(0x1234567890, 0, 5); // expect(buf.toJSON().data).toEqual([0x12, 0x34, 0x56, 0x78, 0x90]); // expect(buf.readUIntBE(0, 5)).toBe(0x1234567890); // buf.fill(0xff); // buf.writeIntLE(0x1234567890, 0, 5); // expect(buf.toJSON().data).toEqual([0x90, 0x78, 0x56, 0x34, 0x12]); // expect(buf.readIntLE(0, 5)).toBe(0x1234567890); // buf.fill(0xff); // buf.writeIntBE(0x1234567890, 0, 5); // expect(buf.toJSON().data).toEqual([0x12, 0x34, 0x56, 0x78, 0x90]); // expect(buf.readIntBE(0, 5)).toBe(0x1234567890); // buf.fill(0xff); // buf.writeIntLE(-0x1234567890, 0, 5); // expect(buf.toJSON().data).toEqual([0x70, 0x87, 0xa9, 0xcb, 0xed]); // expect(buf.readIntLE(0, 5)).toBe(-0x1234567890); // buf.fill(0xff); // buf.writeIntBE(-0x1234567890, 0, 5); // expect(buf.toJSON().data).toEqual([0xed, 0xcb, 0xa9, 0x87, 0x70]); // expect(buf.readIntBE(0, 5)).toBe(-0x1234567890); // buf.fill(0xff); // buf.writeIntLE(-0x0012000000, 0, 5); // expect(buf.toJSON().data).toEqual([0x00, 0x00, 0x00, 0xee, 0xff]); // expect(buf.readIntLE(0, 5)).toBe(-0x0012000000); // buf.fill(0xff); // buf.writeIntBE(-0x0012000000, 0, 5); // expect(buf.toJSON().data).toEqual([0xff, 0xee, 0x00, 0x00, 0x00]); // expect(buf.readIntBE(0, 5)).toBe(-0x0012000000); // }); // it("construct buffer from 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); // expect(b.length).toBe(a.length); // expect(c.length).toBe(a.length); // for (let i = 0, k = a.length; i < k; ++i) { // expect(a[i]).toBe(i); // expect(b[i]).toBe(i); // expect(c[i]).toBe(i); // } // }); // it("truncation after decode", () => { // const crypto = require("crypto"); // expect(crypto.createHash("sha1").update(Buffer.from("YW55=======", "base64")).digest("hex")).toBe( // crypto.createHash("sha1").update(Buffer.from("YW55", "base64")).digest("hex"), // ); // }); // it("Buffer,poolSize", () => { // const ps = Buffer.poolSize; // Buffer.poolSize = 0; // expect(Buffer.allocUnsafe(1).parent instanceof ArrayBuffer).toBe(true); // Buffer.poolSize = ps; // expect(() => Buffer.allocUnsafe(10).copy()).toThrow(TypeError); // expect(() => Buffer.from()).toThrow(TypeError); // expect(() => Buffer.from(null)).toThrow(TypeError); // }); // it("prototype getters should not throw", () => { // expect(Buffer.prototype.parent).toBeUndefined(); // expect(Buffer.prototype.offset).toBeUndefined(); // expect(SlowBuffer.prototype.parent).toBeUndefined(); // expect(SlowBuffer.prototype.offset).toBeUndefined(); // }); // it("large negative Buffer length inputs should not affect pool offset", () => { // // Use the fromArrayLike() variant here because it's more lenient // // about its input and passes the length directly to allocate(). // expect(Buffer.from({ length: -Buffer.poolSize })).toStrictEqual(Buffer.from("")); // expect(Buffer.from({ length: -100 })).toStrictEqual(Buffer.from("")); // // Check pool offset after that by trying to write string into the pool. // Buffer.from("abc"); // }); // it("ParseArrayIndex() should handle full uint32", () => { // expect(() => Buffer.from(new ArrayBuffer(0), -1 >>> 0)).toThrow(RangeError); // }); // it("ParseArrayIndex() should reject values that don't fit in a 32 bits size_t", () => { // expect(() => { // const a = Buffer.alloc(1); // const b = Buffer.alloc(1); // a.copy(b, 0, 0x100000000, 0x100000001); // }).toThrow(RangeError); // }); // it("unpooled buffer (replaces SlowBuffer)", () => { // const ubuf = Buffer.allocUnsafeSlow(10); // expect(ubuf).toBeTruthy(); // expect(ubuf.buffer).toBeTruthy(); // expect(ubuf.buffer.byteLength).toBe(10); // }); // it("verify that an empty ArrayBuffer does not throw", () => { // Buffer.from(new ArrayBuffer()); // }); // it("alloc() should throw on non-numeric size", () => { // expect(() => Buffer.alloc({ valueOf: () => 1 })).toThrow(TypeError); // expect(() => Buffer.alloc({ valueOf: () => -1 })).toThrow(TypeError); // }); // it("toLocaleString()", () => { // const buf = Buffer.from("test"); // expect(buf.toLocaleString()).toBe(buf.toString()); // // expect(Buffer.prototype.toLocaleString).toBe(Buffer.prototype.toString); // }); // it("alloc() should throw on invalid data", () => { // expect(() => Buffer.alloc(0x1000, "This is not correctly encoded", "hex")).toThrow(TypeError); // expect(() => Buffer.alloc(0x1000, "c", "hex")).toThrow(TypeError); // expect(() => Buffer.alloc(1, Buffer.alloc(0))).toThrow(TypeError); // expect(() => Buffer.alloc(40, "x", 20)).toThrow(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), `πŸ˜‹ Get Emoji β€” All Emojis to βœ‚οΈ Copy and πŸ“‹ Paste πŸ‘Œ`]; // 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("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…πŸ˜‚πŸ€£β˜ΊοΈπŸ˜ŠπŸ˜ŠπŸ˜‡")).toBe( // new TextEncoder().encode("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…πŸ˜‚πŸ€£β˜ΊοΈπŸ˜ŠπŸ˜ŠπŸ˜‡").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("Β€"); // expect(simpleBuffer.toString("ascii")).toBe("$"); // gc(); // const asciiBuffer = Buffer.from("\xa4", "ascii"); // expect(asciiBuffer.toString("latin1")).toBe("Β€"); // expect(asciiBuffer.toString("ascii")).toBe("$"); // 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", "πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…πŸ˜‚πŸ€£β˜ΊοΈπŸ˜ŠπŸ˜ŠπŸ˜‡"]) { // 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 = "πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…πŸ˜‚πŸ€£β˜ΊοΈπŸ˜ŠπŸ˜ŠπŸ˜‡".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("πŸ˜€"); // expect(buf.toString("utf16le", offset, offset + 8)).toBe("πŸ˜€πŸ˜ƒ"); // expect(buf.toString("utf16le", offset, offset + 12)).toBe("πŸ˜€πŸ˜ƒπŸ˜„"); // expect(buf.toString("utf16le", offset, offset + 16)).toBe("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜"); // expect(buf.toString("utf16le", offset, offset + 20)).toBe("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†"); // expect(buf.toString("utf16le", offset, offset + 24)).toBe("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…"); // expect(buf.toString("utf16le", offset, offset + 28)).toBe("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…πŸ˜‚"); // expect(buf.toString("utf16le", offset, offset + 32)).toBe("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…πŸ˜‚πŸ€£"); // expect(buf.toString("utf16le", offset, offset + 36)).toBe("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…πŸ˜‚πŸ€£β˜ΊοΈ"); // expect(buf.toString("utf16le", offset, offset + 40)).toBe("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…πŸ˜‚πŸ€£β˜ΊοΈπŸ˜Š"); // expect(buf.toString("utf16le", offset, offset + 44)).toBe("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…πŸ˜‚πŸ€£β˜ΊοΈπŸ˜ŠπŸ˜Š"); // expect(buf.toString("utf16le", offset, offset + 48)).toBe("πŸ˜€πŸ˜ƒπŸ˜„πŸ˜πŸ˜†πŸ˜…πŸ˜‚πŸ€£β˜ΊοΈπŸ˜ŠπŸ˜ŠπŸ˜‡"); // } // }); // 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("Ρ‹Ρ‹Ρ‹Ρ‹Ρ‹Ρ‹", 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("Ρ‹Ρ‹Ρ‹Ρ‹Ρ‹Ρ‹".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("Ρ‹Ρ‹", 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(" { // { // 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 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)); // } // // 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"); // expect(Buffer.allocUnsafe(1).fill(0).fill("\u0222")[0]).toBe(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"); // expect(Buffer.allocUnsafe(1).fill("\u0222", "ucs2")[0]).toBe(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"); // }); // it("fill() repeat pattern", () => { // function genBuffer(size, args) { // const b = Buffer.allocUnsafe(size); // return b.fill(0).fill.apply(b, args); // } // const buf2Fill = Buffer.allocUnsafe(1).fill(2); // expect(genBuffer(4, [buf2Fill])).toStrictEqual(Buffer.from([2, 2, 2, 2])); // expect(genBuffer(4, [buf2Fill, 1])).toStrictEqual(Buffer.from([0, 2, 2, 2])); // expect(genBuffer(4, [buf2Fill, 1, 3])).toStrictEqual(Buffer.from([0, 2, 2, 0])); // expect(genBuffer(4, [buf2Fill, 1, 1])).toStrictEqual(Buffer.from([0, 0, 0, 0])); // const hexBufFill = Buffer.allocUnsafe(2).fill(0).fill("0102", "hex"); // expect(genBuffer(4, [hexBufFill])).toStrictEqual(Buffer.from([1, 2, 1, 2])); // expect(genBuffer(4, [hexBufFill, 1])).toStrictEqual(Buffer.from([0, 1, 2, 1])); // expect(genBuffer(4, [hexBufFill, 1, 3])).toStrictEqual(Buffer.from([0, 1, 2, 0])); // expect(genBuffer(4, [hexBufFill, 1, 1])).toStrictEqual(Buffer.from([0, 0, 0, 0])); // }); // it("fill() should throw on invalid arguments", () => { // // Check exceptions // const buf = Buffer.allocUnsafe(16); // expect(() => buf.fill(0, -1)).toThrow(RangeError); // expect(() => buf.fill(0, 0, buf.length + 1)).toThrow(RangeError); // expect(() => buf.fill("", -1)).toThrow(RangeError); // expect(() => buf.fill("", 0, buf.length + 1)).toThrow(RangeError); // expect(() => buf.fill("", 1, -1)).toThrow(RangeError); // expect(() => buf.fill("a", 0, buf.length, "node rocks!")).toThrow(TypeError); // expect(() => buf.fill("a", 0, 0, NaN)).toThrow(TypeError); // expect(() => buf.fill("a", 0, 0, false)).toThrow(TypeError); // expect(() => buf.fill("a", 0, 0, "foo")).toThrow(TypeError); // // Make sure these throw. // expect(() => Buffer.allocUnsafe(8).fill("a", -1)).toThrow(); // expect(() => Buffer.allocUnsafe(8).fill("a", 0, 9)).toThrow(); // }); // it("fill() should not hang indefinitely", () => { // // Make sure this doesn't hang indefinitely. // Buffer.allocUnsafe(8).fill(""); // Buffer.alloc(8, ""); // }); // it("fill() repeat byte", () => { // const buf = Buffer.alloc(64, 10); // for (let i = 0; i < buf.length; i++) expect(buf[i]).toBe(10); // buf.fill(11, 0, buf.length >> 1); // for (let i = 0; i < buf.length >> 1; i++) expect(buf[i]).toBe(11); // for (let i = (buf.length >> 1) + 1; i < buf.length; i++) expect(buf[i]).toBe(10); // buf.fill("h"); // for (let i = 0; i < buf.length; i++) expect(buf[i]).toBe("h".charCodeAt(0)); // buf.fill(0); // for (let i = 0; i < buf.length; i++) expect(buf[i]).toBe(0); // buf.fill(null); // for (let i = 0; i < buf.length; i++) expect(buf[i]).toBe(0); // buf.fill(1, 16, 32); // for (let i = 0; i < 16; i++) expect(buf[i]).toBe(0); // for (let i = 16; i < 32; i++) expect(buf[i]).toBe(1); // for (let i = 32; i < buf.length; i++) expect(buf[i]).toBe(0); // }); // it("alloc() repeat pattern", () => { // const buf = Buffer.alloc(10, "abc"); // expect(buf.toString()).toBe("abcabcabca"); // buf.fill("Υ§"); // expect(buf.toString()).toBe("Υ§Υ§Υ§Υ§Υ§"); // }); // it("fill() should properly check `start` & `end`", () => { // // // Testing process.binding. Make sure "start" is properly checked for range // // // errors. // // expect(() => internalBinding("buffer").fill(Buffer.alloc(1), 1, -1, 0, 1)).toThrow(RangeError); // // 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(TypeError); // // Testing process.binding. Make sure "end" is properly checked for range // // errors. // // expect(() => internalBinding("buffer").fill(Buffer.alloc(1), 1, 1, -2, 1)).toThrow(RangeError); // }); // it("bypassing `length` should not cause an abort", () => { // const buf = Buffer.from("w00t"); // expect(buf).toStrictEqual(Buffer.from([119, 48, 48, 116])); // Object.defineProperty(buf, "length", { // value: 1337, // enumerable: true, // }); // // Node.js throws here, but we can handle it just fine // buf.fill(""); // expect(buf).toStrictEqual(Buffer.from([0, 0, 0, 0])); // }); // it("allocUnsafeSlow().fill()", () => { // expect(Buffer.allocUnsafeSlow(16).fill("ab", "utf16le")).toStrictEqual( // Buffer.from("61006200610062006100620061006200", "hex"), // ); // expect(Buffer.allocUnsafeSlow(15).fill("ab", "utf16le")).toStrictEqual( // Buffer.from("610062006100620061006200610062", "hex"), // ); // expect(Buffer.allocUnsafeSlow(16).fill("ab", "utf16le")).toStrictEqual( // Buffer.from("61006200610062006100620061006200", "hex"), // ); // expect(Buffer.allocUnsafeSlow(16).fill("a", "utf16le")).toStrictEqual( // Buffer.from("61006100610061006100610061006100", "hex"), // ); // expect(Buffer.allocUnsafeSlow(16).fill("a", "utf16le").toString("utf16le")).toBe("a".repeat(8)); // expect(Buffer.allocUnsafeSlow(16).fill("a", "latin1").toString("latin1")).toBe("a".repeat(16)); // expect(Buffer.allocUnsafeSlow(16).fill("a", "utf8").toString("utf8")).toBe("a".repeat(16)); // expect(Buffer.allocUnsafeSlow(16).fill("Π‰", "utf16le").toString("utf16le")).toBe("Π‰".repeat(8)); // expect(Buffer.allocUnsafeSlow(16).fill("Π‰", "latin1").toString("latin1")).toBe("\t".repeat(16)); // expect(Buffer.allocUnsafeSlow(16).fill("Π‰", "utf8").toString("utf8")).toBe("Π‰".repeat(8)); // expect(() => { // const buf = Buffer.from("a".repeat(1000)); // buf.fill("This is not correctly encoded", "hex"); // }).toThrow(); // }); // it("ArrayBuffer.isView()", () => { // expect(ArrayBuffer.isView(new Buffer(10))).toBe(true); // expect(ArrayBuffer.isView(new SlowBuffer(10))).toBe(true); // expect(ArrayBuffer.isView(Buffer.alloc(10))).toBe(true); // expect(ArrayBuffer.isView(Buffer.allocUnsafe(10))).toBe(true); // expect(ArrayBuffer.isView(Buffer.allocUnsafeSlow(10))).toBe(true); // expect(ArrayBuffer.isView(Buffer.from(""))).toBe(true); // }); // it("Buffer.byteLength()", () => { // expect(() => Buffer.byteLength(32, "latin1")).toThrow(TypeError); // expect(() => Buffer.byteLength(NaN, "utf8")).toThrow(TypeError); // expect(() => Buffer.byteLength({}, "latin1")).toThrow(TypeError); // expect(() => Buffer.byteLength()).toThrow(TypeError); // expect(Buffer.byteLength("", undefined, true)).toBe(0); // // buffer // const incomplete = Buffer.from([0xe4, 0xb8, 0xad, 0xe6, 0x96]); // expect(Buffer.byteLength(incomplete)).toBe(5); // const ascii = Buffer.from("abc"); // expect(Buffer.byteLength(ascii)).toBe(3); // // ArrayBuffer // const buffer = new ArrayBuffer(8); // expect(Buffer.byteLength(buffer)).toBe(8); // // TypedArray // const int8 = new Int8Array(8); // expect(Buffer.byteLength(int8)).toBe(8); // const uint8 = new Uint8Array(8); // expect(Buffer.byteLength(uint8)).toBe(8); // const uintc8 = new Uint8ClampedArray(2); // expect(Buffer.byteLength(uintc8)).toBe(2); // const int16 = new Int16Array(8); // expect(Buffer.byteLength(int16)).toBe(16); // const uint16 = new Uint16Array(8); // expect(Buffer.byteLength(uint16)).toBe(16); // const int32 = new Int32Array(8); // expect(Buffer.byteLength(int32)).toBe(32); // const uint32 = new Uint32Array(8); // expect(Buffer.byteLength(uint32)).toBe(32); // const float32 = new Float32Array(8); // expect(Buffer.byteLength(float32)).toBe(32); // const float64 = new Float64Array(8); // expect(Buffer.byteLength(float64)).toBe(64); // // DataView // const dv = new DataView(new ArrayBuffer(2)); // expect(Buffer.byteLength(dv)).toBe(2); // // Special case: zero length string // expect(Buffer.byteLength("", "ascii")).toBe(0); // expect(Buffer.byteLength("", "HeX")).toBe(0); // // utf8 // expect(Buffer.byteLength("βˆ‘Γ©llΓΆ wΓΈrlβˆ‚!", "utf-8")).toBe(19); // expect(Buffer.byteLength("κλμνξο", "utf8")).toBe(12); // expect(Buffer.byteLength("挡挢挷挸挹", "utf-8")).toBe(15); // expect(Buffer.byteLength("𠝹𠱓𠱸", "UTF8")).toBe(12); // // Without an encoding, utf8 should be assumed // expect(Buffer.byteLength("hey there")).toBe(9); // expect(Buffer.byteLength("𠱸挢νξ#xx :)")).toBe(17); // expect(Buffer.byteLength("hello world", "")).toBe(11); // // It should also be assumed with unrecognized encoding // expect(Buffer.byteLength("hello world", "abc")).toBe(11); // expect(Buffer.byteLength("ΓŸΕ“βˆ‘β‰ˆ", "unkn0wn enc0ding")).toBe(10); // // base64 // expect(Buffer.byteLength("aGVsbG8gd29ybGQ=", "base64")).toBe(11); // expect(Buffer.byteLength("aGVsbG8gd29ybGQ=", "BASE64")).toBe(11); // expect(Buffer.byteLength("bm9kZS5qcyByb2NrcyE=", "base64")).toBe(14); // expect(Buffer.byteLength("aGkk", "base64")).toBe(3); // expect(Buffer.byteLength("bHNrZGZsa3NqZmtsc2xrZmFqc2RsZmtqcw==", "base64")).toBe(25); // // base64url // expect(Buffer.byteLength("aGVsbG8gd29ybGQ", "base64url")).toBe(11); // expect(Buffer.byteLength("aGVsbG8gd29ybGQ", "BASE64URL")).toBe(11); // expect(Buffer.byteLength("bm9kZS5qcyByb2NrcyE", "base64url")).toBe(14); // expect(Buffer.byteLength("aGkk", "base64url")).toBe(3); // expect(Buffer.byteLength("bHNrZGZsa3NqZmtsc2xrZmFqc2RsZmtqcw", "base64url")).toBe(25); // // special padding // expect(Buffer.byteLength("aaa=", "base64")).toBe(2); // expect(Buffer.byteLength("aaaa==", "base64")).toBe(3); // expect(Buffer.byteLength("aaa=", "base64url")).toBe(2); // expect(Buffer.byteLength("aaaa==", "base64url")).toBe(3); // expect(Buffer.byteLength("Il Γ©tait tuΓ©", "utf8")).toBe(14); // expect(Buffer.byteLength("Il Γ©tait tuΓ©")).toBe(14); // ["ascii", "latin1", "binary"] // .reduce((es, e) => es.concat(e, e.toUpperCase()), []) // .forEach(encoding => { // expect(Buffer.byteLength("Il Γ©tait tuΓ©", encoding)).toBe(12); // }); // ["ucs2", "ucs-2", "utf16le", "utf-16le"] // .reduce((es, e) => es.concat(e, e.toUpperCase()), []) // .forEach(encoding => { // expect(Buffer.byteLength("Il Γ©tait tuΓ©", encoding)).toBe(24); // }); // // Test that ArrayBuffer from a different context is detected correctly // // const arrayBuf = vm.runInNewContext("new ArrayBuffer()"); // // expect(Buffer.byteLength(arrayBuf)).toBe(0); // // Verify that invalid encodings are treated as utf8 // for (let i = 1; i < 10; i++) { // const encoding = String(i).repeat(i); // expect(Buffer.isEncoding(encoding)).toBe(false); // expect(Buffer.byteLength("foo", encoding)).toBe(Buffer.byteLength("foo", "utf8")); // } // }); // it("Buffer.toString(encoding, start, end)", () => { // const buf = Buffer.from("0123456789", "utf8"); // expect(buf.toString()).toStrictEqual("0123456789"); // expect(buf.toString("utf8")).toStrictEqual("0123456789"); // expect(buf.toString("utf8", 3)).toStrictEqual("3456789"); // expect(buf.toString("utf8", 3, 4)).toStrictEqual("3"); // expect(buf.toString("utf8", 3, 100)).toStrictEqual("3456789"); // expect(buf.toString("utf8", 3, 1)).toStrictEqual(""); // expect(buf.toString("utf8", 100, 200)).toStrictEqual(""); // expect(buf.toString("utf8", 100, 1)).toStrictEqual(""); // }); // it("Buffer.toString(offset, length, encoding)", () => { // const buf = Buffer.from("0123456789", "utf8"); // expect(buf.toString(3, 6, "utf8")).toStrictEqual("345678"); // expect(buf.toString(3, 100, "utf8")).toStrictEqual("3456789"); // expect(buf.toString(100, 200, "utf8")).toStrictEqual(""); // expect(buf.toString(100, 50, "utf8")).toStrictEqual(""); // }); // it("Buffer.asciiSlice())", () => { // const buf = Buffer.from("0123456789", "ascii"); // expect(buf.asciiSlice()).toStrictEqual("0123456789"); // expect(buf.asciiSlice(3)).toStrictEqual("3456789"); // expect(buf.asciiSlice(3, 4)).toStrictEqual("3"); // }); // it("Buffer.latin1Slice()", () => { // const buf = Buffer.from("Òéâ", "latin1"); // expect(buf.latin1Slice()).toStrictEqual("Òéâ"); // expect(buf.latin1Slice(1)).toStrictEqual("éâ"); // expect(buf.latin1Slice(1, 2)).toStrictEqual("Γ©"); // }); // it("Buffer.utf8Slice()", () => { // const buf = Buffer.from("γ‚γ„γ†γˆγŠ", "utf8"); // expect(buf.utf8Slice()).toStrictEqual("γ‚γ„γ†γˆγŠ"); // expect(buf.utf8Slice(3)).toStrictEqual("γ„γ†γˆγŠ"); // expect(buf.utf8Slice(3, 6)).toStrictEqual("い"); // }); // it("Buffer.hexSlice()", () => { // const buf = Buffer.from("0123456789", "utf8"); // expect(buf.hexSlice()).toStrictEqual("30313233343536373839"); // expect(buf.hexSlice(3)).toStrictEqual("33343536373839"); // expect(buf.hexSlice(3, 4)).toStrictEqual("33"); // }); // it("Buffer.ucs2Slice()", () => { // const buf = Buffer.from("γ‚γ„γ†γˆγŠ", "ucs2"); // expect(buf.ucs2Slice()).toStrictEqual("γ‚γ„γ†γˆγŠ"); // expect(buf.ucs2Slice(2)).toStrictEqual("γ„γ†γˆγŠ"); // expect(buf.ucs2Slice(2, 6)).toStrictEqual("いう"); // }); // it("Buffer.base64Slice()", () => { // const buf = Buffer.from("0123456789", "utf8"); // expect(buf.base64Slice()).toStrictEqual("MDEyMzQ1Njc4OQ=="); // expect(buf.base64Slice(3)).toStrictEqual("MzQ1Njc4OQ=="); // expect(buf.base64Slice(3, 4)).toStrictEqual("Mw=="); // }); // it("Buffer.base64urlSlice()", () => { // const buf = Buffer.from("0123456789", "utf8"); // expect(buf.base64urlSlice()).toStrictEqual("MDEyMzQ1Njc4OQ"); // expect(buf.base64urlSlice(3)).toStrictEqual("MzQ1Njc4OQ"); // expect(buf.base64urlSlice(3, 4)).toStrictEqual("Mw"); // }); // 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); // }); // it("inspect() should exist", () => { // expect(Buffer.prototype.inspect).toBeInstanceOf(Function); // expect(new Buffer("123").inspect()).toBe(Bun.inspect(new Buffer("123"))); // }); // it("read alias", () => { // var buf = new Buffer(1024); // var data = new DataView(buf.buffer); // data.setUint8(0, 200, false); // expect(buf.readUint8(0)).toBe(buf.readUInt8(0)); // expect(buf.readUintBE(0, 4)).toBe(buf.readUIntBE(0, 4)); // expect(buf.readUintLE(0, 4)).toBe(buf.readUIntLE(0, 4)); // expect(buf.readUint16BE(0)).toBe(buf.readUInt16BE(0)); // expect(buf.readUint16LE(0)).toBe(buf.readUInt16LE(0)); // expect(buf.readUint32BE(0)).toBe(buf.readUInt32BE(0)); // expect(buf.readUint32LE(0)).toBe(buf.readUInt32LE(0)); // expect(buf.readBigUint64BE(0)).toBe(buf.readBigUInt64BE(0)); // expect(buf.readBigUint64LE(0)).toBe(buf.readBigUInt64LE(0)); // }); // it("write alias", () => { // var buf = new Buffer(1024); // var buf2 = new Buffer(1024); // function reset() { // new Uint8Array(buf.buffer).fill(0); // new Uint8Array(buf2.buffer).fill(0); // } // function shouldBeSame(name, name2, ...args) { // buf[name].call(buf, ...args); // buf2[name2].call(buf2, ...args); // expect(buf).toStrictEqual(buf2); // reset(); // } // shouldBeSame("writeUint8", "writeUInt8", 10); // shouldBeSame("writeUintBE", "writeUIntBE", 10, 0, 4); // shouldBeSame("writeUintLE", "writeUIntLE", 10, 0, 4); // shouldBeSame("writeUint16BE", "writeUInt16BE", 1000); // shouldBeSame("writeUint16LE", "writeUInt16LE", 1000); // shouldBeSame("writeUint32BE", "writeUInt32BE", 1000); // shouldBeSame("writeUint32LE", "writeUInt32LE", 1000); // shouldBeSame("writeBigUint64BE", "writeBigUInt64BE", BigInt(1000)); // shouldBeSame("writeBigUint64LE", "writeBigUInt64LE", BigInt(1000)); // });