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TypeScript
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180/** * Portions adapted from Test262 at revision 250f204f23a9249ff204be2baec29600faae7b75: * - test/annexB/built-ins/String/prototype/substr/length-falsey.js * - test/annexB/built-ins/String/prototype/substr/length-negative.js * - test/annexB/built-ins/String/prototype/substr/length-positive.js * - test/annexB/built-ins/String/prototype/substr/length-undef.js * - test/annexB/built-ins/String/prototype/substr/start-negative.js * - test/annexB/built-ins/String/prototype/substr/surrogate-pairs.js * - test/built-ins/String/prototype/isWellFormed/returns-boolean.js * - test/built-ins/String/prototype/toWellFormed/returns-well-formed-string.js * - test/built-ins/Date/prototype/toDateString/format.js * - test/built-ins/Date/prototype/toDateString/invalid-date.js * - test/built-ins/Date/prototype/toDateString/negative-year.js * - test/built-ins/Date/prototype/toTimeString/format.js * - test/built-ins/Date/prototype/toTimeString/invalid-date.js * * Copyright (C) 2016, 2017 the V8 project authors. All rights reserved. * Copyright (C) 2018 Richard Gibson. All rights reserved. * Copyright (C) 2022 Jordan Harband. All rights reserved. * Test262 portions are governed by the BSD license in LICENSE.test262. * * The `typeof String.prototype.method` checks are replaced with `typeof "".method` because * CodeMode has no prototype objects. */import { describe, expect, test } from "bun:test"import { Effect } from "effect"import { CodeMode } from "../src/index.js"
const value = async (code: string) => { const result = await Effect.runPromise(CodeMode.execute({ code, tools: {} })) if (!result.ok) throw new Error(`expected success, got ${result.error.kind}: ${result.error.message}`) return result.value}
describe("String.prototype.substr Test262 parity", () => { test("test/annexB/built-ins/String/prototype/substr/length-falsey.js", async () => { expect( await value(` return [false, NaN, "", null].flatMap((length) => [0, 1, 2, 3].map((start) => "abc".substr(start, length))) `), ).toEqual(Array(16).fill("")) })
test("test/annexB/built-ins/String/prototype/substr/length-negative.js", async () => { expect( await value(` return [0, 1, 2, 3].flatMap((start) => [-1, -2, -3, -4].map((length) => "abc".substr(start, length))) `), ).toEqual(Array(16).fill("")) })
test("test/annexB/built-ins/String/prototype/substr/length-positive.js", async () => { expect( await value(` return [0, 1, 2, 3].map((start) => [1, 2, 3, 4].map((length) => "abc".substr(start, length))) `), ).toEqual([ ["a", "ab", "abc", "abc"], ["b", "bc", "bc", "bc"], ["c", "c", "c", "c"], ["", "", "", ""], ]) })
test("test/annexB/built-ins/String/prototype/substr/length-undef.js", async () => { expect( await value(` return [ "abc".substr(0), "abc".substr(1), "abc".substr(2), "abc".substr(3), "abc".substr(0, undefined), "abc".substr(1, undefined), "abc".substr(2, undefined), "abc".substr(3, undefined), ] `), ).toEqual(["abc", "bc", "c", "", "abc", "bc", "c", ""]) })
test("test/annexB/built-ins/String/prototype/substr/start-negative.js", async () => { expect( await value(` return ["abc".substr(-1), "abc".substr(-2), "abc".substr(-3), "abc".substr(-4), "abc".substr(-1.1)] `), ).toEqual(["c", "bc", "abc", "abc", "c"]) })
test("test/annexB/built-ins/String/prototype/substr/surrogate-pairs.js", async () => { expect( await value(` const pair = "\\ud834\\udf06" return [pair.substr(0), pair.substr(1), pair.substr(2), pair.substr(0, 0), pair.substr(0, 1), pair.substr(0, 2)] `), ).toEqual(["\ud834\udf06", "\udf06", "", "", "\ud834", "\ud834\udf06"]) })})
describe("String well-formedness Test262 parity", () => { test("test/built-ins/String/prototype/isWellFormed/returns-boolean.js", async () => { expect( await value(` const leadingPoo = "\\uD83D" const trailingPoo = "\\uDCA9" const wholePoo = leadingPoo + trailingPoo return [ typeof "".isWellFormed, ("a" + leadingPoo + "c" + leadingPoo + "e").isWellFormed(), ("a" + trailingPoo + "c" + trailingPoo + "e").isWellFormed(), ("a" + trailingPoo + leadingPoo + "d").isWellFormed(), "a💩c".isWellFormed(), "a\\uD83D\\uDCA9c".isWellFormed(), ("a" + leadingPoo + trailingPoo + "d").isWellFormed(), wholePoo.slice(0, 1).isWellFormed(), wholePoo.slice(1).isWellFormed(), "abc".isWellFormed(), "a\\u25A8c".isWellFormed(), ] `), ).toEqual(["function", false, false, false, true, true, true, false, false, true, true]) })
test("test/built-ins/String/prototype/toWellFormed/returns-well-formed-string.js", async () => { expect( await value(` const replacementChar = "\\uFFFD" const leadingPoo = "\\uD83D" const trailingPoo = "\\uDCA9" const wholePoo = leadingPoo + trailingPoo return [ typeof "".toWellFormed, ("a" + leadingPoo + "c" + leadingPoo + "e").toWellFormed() === "a" + replacementChar + "c" + replacementChar + "e", ("a" + trailingPoo + "c" + trailingPoo + "e").toWellFormed() === "a" + replacementChar + "c" + replacementChar + "e", ("a" + trailingPoo + leadingPoo + "d").toWellFormed() === "a" + replacementChar + replacementChar + "d", "a💩c".toWellFormed() === "a💩c", "a\\uD83D\\uDCA9c".toWellFormed() === "a\\uD83D\\uDCA9c", ("a" + leadingPoo + trailingPoo + "d").toWellFormed() === "a" + wholePoo + "d", wholePoo.slice(0, 1).toWellFormed() === replacementChar, wholePoo.slice(1).toWellFormed() === replacementChar, "abc".toWellFormed() === "abc", "a\\u25A8c".toWellFormed() === "a\\u25A8c", ] `), ).toEqual(["function", true, true, true, true, true, true, true, true, true, true]) })})
describe("Date string formatting Test262 parity", () => { test("test/built-ins/Date/prototype/toDateString/format.js", async () => { expect( await value(` const dateRegExp = /^(Sun|Mon|Tue|Wed|Thu|Fri|Sat) (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) [0-9]{2} [0-9]{4}$/ return [dateRegExp.test(new Date(0).toDateString()), dateRegExp.test(new Date("0020-01-01T00:00:00Z").toDateString())] `), ).toEqual([true, true]) })
test("test/built-ins/Date/prototype/toDateString/invalid-date.js", async () => { expect(await value(`return new Date(NaN).toDateString()`)).toBe("Invalid Date") })
test("test/built-ins/Date/prototype/toDateString/negative-year.js", async () => { expect( await value(` return ["-000001", "-000012", "-000123", "-001234", "-012345", "-123456"].map( (year) => new Date(year + "-07-01T00:00Z").toDateString().split(" ")[3], ) `), ).toEqual(["-0001", "-0012", "-0123", "-1234", "-12345", "-123456"]) })
test("test/built-ins/Date/prototype/toTimeString/format.js", async () => { expect( await value(` const timeRegExp = /^[0-9]{2}:[0-9]{2}:[0-9]{2} GMT[+-][0-9]{4}( \\(.+\\))?$/ return timeRegExp.test(new Date(0).toTimeString()) `), ).toBe(true) })
test("test/built-ins/Date/prototype/toTimeString/invalid-date.js", async () => { expect(await value(`return new Date(NaN).toTimeString()`)).toBe("Invalid Date") })})