import { describe, test, expect, Result } from './tests.uts' export function testString() : Result { return describe("String", () => { test('length', () => { // #TEST String.length const x = "Mozilla"; const e = ""; console.log("Mozilla is " + x.length + " code units long"); /* "Mozilla is 7 code units long" */ console.log("The empty string is has a length of " + e.length); /* "The e string is has a length of 0" */ // #END expect(x.length).toEqual(7); // expect(x[0]).toEqual('M'); const empty = ""; expect(empty.length).toEqual(0); // const adlam = "𞤲𞥋𞤣𞤫"; // expect(adlam.length).toEqual(8); // const formula = "��𝑥∈ℝ,𝑥²��"; // expect(formula.length).toEqual(11); // 1. web: ��大长度和js引擎有关，在v8中为 2^29 - 24 // 超出边界报错: RangeError: Invalid string length // 2. kotlin: ��大长��2^31-1 // 超出边界报错: Error: targetMethod error::java.lang.OutOfMemoryError: char[] of length // 3. swift: ��大长度和内存有关 // 超出边界没有返回信息 // const length = Math.pow(2, 29) - 24 // const str = 'x'.repeat(length); // expect(str.length).toEqual(11); }) test('at', () => { // #TEST String.at const sentence = 'The quick brown fox jumps over the lazy dog.'; let index = 5; console.log(`Using an index of ${index} the character returned is ${sentence.at(index)}`); // expected output: "Using an index of 5 the character returned is u" index = -4; console.log(`Using an index of ${index} the character returned is ${sentence.at(index)}`); // expected output: "Using an index of -4 the character returned is d" // #END index = 5; expect(sentence.at(index)).toEqual("u"); index = -4; expect(sentence.at(index)).toEqual("d"); expect(sentence.at(999)).toEqual(null); let invoiceRef = 'myinvoice01'; expect(invoiceRef.at(-1)).toEqual("1"); invoiceRef = 'myinvoice02'; expect(invoiceRef.at(-1)).toEqual("2"); expect(invoiceRef.at(-999)).toEqual(null); const empty = ""; expect(empty.at(0)).toEqual(null); }) test('charAt', () => { // #TEST String.charAt const anyString = "Brave new world"; console.log("The character at index 0 is '" + anyString.charAt(0) + "'"); // The character at index 0 is 'B' console.log("The character at index 1 is '" + anyString.charAt(1) + "'"); // The character at index 1 is 'r' console.log("The character at index 2 is '" + anyString.charAt(2) + "'"); // The character at index 2 is 'a' console.log("The character at index 3 is '" + anyString.charAt(3) + "'"); // The character at index 3 is 'v' console.log("The character at index 4 is '" + anyString.charAt(4) + "'"); // The character at index 4 is 'e' console.log("The character at index 999 is '" + anyString.charAt(999) + "'"); // The character at index 999 is '' // #END expect(anyString.charAt(0)).toEqual("B"); expect(anyString.charAt(1)).toEqual("r"); expect(anyString.charAt(2)).toEqual("a"); expect(anyString.charAt(3)).toEqual("v"); expect(anyString.charAt(4)).toEqual("e"); expect(anyString.charAt(999)).toEqual(""); expect(anyString.charAt(-1)).toEqual(""); expect(anyString.charAt(-2)).toEqual(""); expect(anyString.charAt(-999)).toEqual(""); const empty = ""; expect(empty.charAt(0)).toEqual(""); }) test('toWellFormed', () => { // #ifdef APP-ANDROID // #TEST String.toWellFormed let ret = "ab\uD800".toWellFormed() console.log(ret) //"ab\uFFFD" // #END expect(ret).toEqual("ab\uFFFD"); expect("ab\uD800c".toWellFormed()).toEqual("ab\uFFFDc"); expect("\uDFFFab".toWellFormed()).toEqual("\uFFFDab"); expect("c\uDFFFab".toWellFormed()).toEqual("c\uFFFDab"); expect("abc".toWellFormed()).toEqual("abc"); expect("ab\uD83D\uDE04c".toWellFormed()).toEqual("ab\uD83D\uDE04c"); expect("ab\uD83D\uDE04c".toWellFormed()).toEqual("ab\uD83D\uDE04c"); expect("ab\uD83D\uDE04c\uD83D".toWellFormed()).toEqual("ab\uD83D\uDE04c\uFFFD"); // #endif }) test('isWellFormed', () => { // #ifdef APP-ANDROID // #TEST String.isWellFormed let ret = "ab\uD800".isWellFormed() console.log(ret) //false // #END expect(ret).toEqual(false); expect("ab\uD800c".isWellFormed()).toEqual(false); expect("\uDFFFab".isWellFormed()).toEqual(false); expect("c\uDFFFab".isWellFormed()).toEqual(false); expect("abc".isWellFormed()).toEqual(true); expect("ab\uD83D\uDE04c".isWellFormed()).toEqual(true); expect("ab\uD83D\uDE04c".isWellFormed()).toEqual(true); expect("ab\uD83D\uDE04c\uD83D".isWellFormed()).toEqual(false); // #endif }) test('charCodeAt', () => { // #TEST String.charCodeAt const sentence = 'The quick brown fox jumps over the lazy dog.'; const index = 4; console.log(`The character code ${sentence.charCodeAt(index)} is equal to ${sentence.charAt(index)}`); // expected output: "The character code 113 is equal to q" // #END expect(sentence.charCodeAt(index)).toEqual(113); expect("ABC".charCodeAt(0)).toEqual(65); expect("ABC".charCodeAt(1)).toEqual(66); expect("ABC".charCodeAt(2)).toEqual(67); expect("ABC".charCodeAt(3)).toEqual(NaN); const empty = ""; expect(empty.charCodeAt(0)).toEqual(NaN); }) test('fromCharCode', () => { // #TEST String.fromCharCode console.log(String.fromCharCode(65, 66, 67)); // expected output: "ABC" console.log(String.fromCharCode(0x12014)); // expected output: "𝌆a𝌇" // #END expect(String.fromCharCode(65, 66, 67)).toEqual("ABC"); expect(String.fromCharCode(0x12014)).toEqual("—"); expect(String.fromCharCode(0xd834, 0xdf06, 0x61, 0xd834, 0xdf07)).toEqual("𝌆a𝌇"); }) test('concat', () => { // #TEST String.concat let hello = 'Hello, ' let ret1 = hello.concat('Kevin', '. Have a nice day.') console.log(ret1) // Hello, Kevin. Have a nice day. // #END expect(ret1).toEqual("Hello, Kevin. Have a nice day."); expect("".concat('abc')).toEqual("abc"); }) test('endsWith', () => { // #TEST String.endsWith const str1 = 'Cats are the best!'; console.log(str1.endsWith('best!')); // expected output: true console.log(str1.endsWith('best', 17)); // expected output: true const str2 = 'Is this a question?'; console.log(str2.endsWith('question')); // expected output: false // #END expect(str1.endsWith('best!')).toEqual(true); expect(str1.endsWith('best', 17)).toEqual(true); expect(str2.endsWith('question')).toEqual(false); expect("".includes("test")).toEqual(false); }) test('includes', () => { // #TEST String.includes const sentence = 'The quick brown fox jumps over the lazy dog.'; const word = 'fox'; console.log(sentence.includes(word)) // true // #END expect(sentence.includes(word)).toEqual(true); expect("Blue Whale".includes("blue")).toEqual(false); expect("Blue Whale".toLowerCase().includes("blue")).toEqual(true); expect("".includes("test")).toEqual(false); }) test('indexOf', () => { // #TEST String.indexOf const paragraph = 'The quick brown fox jumps over the lazy dog. If the dog barked, was it really lazy?'; const searchTerm = 'dog'; const indexOfFirst = paragraph.indexOf(searchTerm); console.log(`The index of the first "${searchTerm}" from the beginning is ${indexOfFirst}`); // expected output: "The index of the first "dog" from the beginning is 40" console.log(`The index of the 2nd "${searchTerm}" is ${paragraph.indexOf(searchTerm, (indexOfFirst + 1))}`); // expected output: "The index of the 2nd "dog" is 52" // #END expect(indexOfFirst).toEqual(40); expect(paragraph.indexOf(searchTerm, (indexOfFirst + 1))).toEqual(52); expect('Blue Whale'.indexOf('Blue')).toEqual(0); expect('Blue Whale'.indexOf('Blute')).toEqual(-1); expect('Blue Whale'.indexOf('Whale', 0)).toEqual(5); expect('Blue Whale'.indexOf('Whale', 5)).toEqual(5); expect('Blue Whale'.indexOf('Whale', 7)).toEqual(-1); expect("".indexOf("test")).toEqual(-1); }) test('match', () => { // #TEST String.match const str = 'The quick brown fox jumps over the lazy dog. It barked.'; const result = str.match(new RegExp('[A-Z]', 'g')); console.log(result![0])//"T" // #END // expect(result!.length).toEqual(2); expect(result![0]).toEqual("T"); expect(result![1]).toEqual("I"); const result2 = str.match(new RegExp('[A-Z]')); // expect(result2!.length).toEqual(1); expect(result2![0]).toEqual("T"); // #ifdef APP-ANDROID const gradientString = 'linear-gradient(to right, rgb(255, 0, 0), #00FF00, hsl(120, 100%, 50%))'; const pattern = /rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)|#([a-fA-F0-9]{2}){3}|hsl\(\s*(\d{1,3})\s*,\s*(\d{1,3})%\s*,\s*(\d{1,3})%\s*\)/g; const result3 = gradientString.match(pattern); expect(result3?.length).toEqual(3); expect(result3?.[0]).toEqual("rgb(255, 0, 0)"); expect(result3?.[2]).toEqual("hsl(120, 100%, 50%)"); const pattern2 = /rgb\(\s*(\d{1,3})\s*,\s*(\d{1,3})\s*,\s*(\d{1,3})\s*\)|#([a-fA-F0-9]{2}){3}|hsl\(\s*(\d{1,3})\s*,\s*(\d{1,3})%\s*,\s*(\d{1,3})%\s*\)/; const result4 = gradientString.match(pattern2); expect(result4?.length).toEqual(8); expect(result4?.[0]).toEqual("rgb(255, 0, 0)"); expect(result4?.[1]).toEqual("255"); expect(result4?.[2]).toEqual("0"); const url = ''; const urlRegex = /^(\w+):\/\/([^\/?#]+)([^?#]*)(\?[^#]*)?(#.*)?$/; const match = url.match(urlRegex); expect(JSON.stringify(match)).toEqual("null"); // #endif }) test('padEnd', () => { // #TEST String.padEnd const str1 = 'Breaded Mushrooms'; let ret1= str1.padEnd(25, '.') console.log(ret1); // expected output: "Breaded Mushrooms........" const str2 = '200'; let ret2=str2.padEnd(5) console.log(ret2); // expected output: "200 " // #END expect(str1.padEnd(25, '.')).toEqual("Breaded Mushrooms........"); expect(ret2).toEqual("200 "); expect('abc'.padEnd(10)).toEqual("abc "); expect('abc'.padEnd(10, "foo")).toEqual("abcfoofoof"); expect('abc'.padEnd(6, "123456")).toEqual("abc123"); expect('abc'.padEnd(1)).toEqual("abc"); }) test('padStart', () => { // #TEST String.padStart const str1 = '5'; let ret = str1.padStart(2, '0') console.log(ret); // expected output: "05" // #END expect(ret).toEqual("05"); expect('abc'.padStart(10)).toEqual(" abc"); expect('abc'.padStart(10, "foo")).toEqual("foofoofabc"); expect('abc'.padStart(6, "123456")).toEqual("123abc"); expect('abc'.padStart(8, "0")).toEqual("00000abc"); expect('abc'.padStart(1)).toEqual("abc"); }) test('repeat', () => { const str1 = 'abc'; // #TEST String.repeat "abc".repeat(0) // "" "abc".repeat(1) // "abc" "abc".repeat(2) // "abcabc" "abc".repeat(3.5) // "abcabcabc" 参数 count 将会被自动转换成整数。 // #END expect(str1.repeat(0)).toEqual(""); expect(str1.repeat(1)).toEqual("abc"); expect(str1.repeat(2)).toEqual("abcabc"); expect(str1.repeat(3.5)).toEqual("abcabcabc"); expect("".repeat(1)).toEqual(""); }) test('replace', () => { // #TEST String.replace const p = 'The quick brown fox jumps over the lazy dog. If the dog reacted, was it really lazy?'; let ret1 = p.replace('dog', 'monkey') console.log(ret1); // expected output: "The quick brown fox jumps over the lazy monkey. If the dog reacted, was it really lazy?" const regex = /Dog/i; let ret2 = p.replace(regex, 'ferret') console.log(ret2); // expected output: "The quick brown fox jumps over the lazy ferret. If the dog reacted, was it really lazy?" // #END expect(ret1).toEqual("The quick brown fox jumps over the lazy monkey. If the dog reacted, was it really lazy?"); expect(ret2).toEqual("The quick brown fox jumps over the lazy ferret. If the dog reacted, was it really lazy?"); const str = 'abc12345#$*%'; const replacer = (match : string, p : string[], offset : number, string : string) : string => { // p1 is nondigits, p2 digits, and p3 non-alphanumerics expect(offset).toEqual(0); expect(match).toEqual(str); expect(string).toEqual(str); return p.join(' - '); } // #TEST String.replace_1 // 不包含捕捉组的示例 let a = "The quick brown fox jumps over the lazy dog. If the dog reacted, was it really lazy?" let b = a.replace(RegExp("fox"), function (match : string, offset : number, string : string) : string { console.log("match", match) console.log("offset", offset) console.log("string", string) return "cat" }) console.log("b:", b) // 包含一个捕获组的示例。注意，目前android仅支持最多五个捕获组 let a1 = "The quick brown fox jumps over the lazy dog. If the dog reacted, was it really lazy?" let b1 = a1.replace(RegExp("(fox)"), function (match : string, p1 : string, offset : number, string : string) : string { console.log("match", match) console.log("p1", p1) console.log("offset", offset) console.log("string", string) return "cat" }) console.log("b1", b1) // #END // const REGEX_FORMAT = /[YMDHhms]o|\[([^\]]+)]|Y{1,4}|M{1,4}|D{1,2}|d{1,4}|H{1,2}|h{1,2}|a{1,2}|A{1,2}|m{1,2}|s{1,2}|Z{1,2}|SSS/g // const formatStr = 'This is a [sample] text with [another] capture group.' // const nextStr = formatStr.replace(REGEX_FORMAT, (match:string, p1: string|null, offset: number, string: string):string =>{ // console.log('123', p1, match) // return p1 ?? match ?? '' // }) // expect(nextStr).toEqual('This is a sample text with another capture group.'); // var newString = str.replace(/([^\d]*)(\d*)([^\w]*)/, replacer); // expect(newString).toEqual("abc - 12345 - #$*%"); // const str1 = 'hello, world'; // const newString1 = str1.replace(/world/, (match: string, offset:number):string => `JavaScript (${offset})`); // expect(newString1).toEqual('hello, JavaScript (7)'); }) test('search', () => { // #TEST String.search const paragraph = 'The quick brown fox jumps over the lazy dog. If the dog barked, was it really lazy?'; const regex = /[^\w\s]/g; console.log(paragraph.search(regex)); // expected output: 43 console.log(paragraph[paragraph.search(regex)]); // expected output: "." // #END expect(paragraph.search(regex)).toEqual(43); var str = "hey JudE"; var re = /[A-Z]/g; var re2 = /[.]/g; expect(str.search(re)).toEqual(4); expect(str.search(re2)).toEqual(-1); expect("".search(re2)).toEqual(-1); }) test('slice', () => { // #TEST String.slice const str = 'The quick brown fox jumps over the lazy dog.'; let ret = str.slice(31) console.log(ret); // expected output: "the lazy dog." console.log(str.slice(4, 19)); // expected output: "quick brown fox" // #END expect(ret).toEqual("the lazy dog."); let str1 = 'The morning is upon us.', // str1 的长��length ��23�� str2 = str1.slice(1, 8), str3 = str1.slice(4, -2), str4 = str1.slice(12), str5 = str1.slice(30), str6 = str1.slice(); expect(str2).toEqual("he morn"); expect(str3).toEqual("morning is upon u"); expect(str4).toEqual("is upon us."); expect(str5).toEqual(""); expect(str6).toEqual("The morning is upon us."); expect("".slice()).toEqual(""); expect("abcdefg".slice(-1)).toEqual("g"); expect("abcdefg".slice(-1, -2)).toEqual(""); }) test('split', () => { // #TEST String.split const str = 'The quick brown fox jumps over the lazy dog.'; const words = str.split(' '); let ret1 = words[3] console.log(ret1); // expected output: "fox" const chars = str.split(''); console.log(chars[8]); // expected output: "k" // #END expect(ret1).toEqual("fox"); expect(chars[8]).toEqual("k"); var myString = "Hello World. How are you doing?"; var splits = myString.split(" ", 3); var splits1 = myString.split(" ", 10); expect(splits).toEqual(["Hello", "World.", "How"]); expect(splits1).toEqual(['Hello', 'World.', 'How', 'are', 'you', 'doing?']); expect(''.split('')).toEqual([]) expect('abc'.split('b')).toEqual(["a", "c"]) expect('abc'.split('d')).toEqual(["abc"]) var str1 = "Harry Trump ;Fred Barney; Helen Rigby ; Bill Abel ;Chris Hand "; var re1 = /\s*(?:;|$)\s*/; expect(str1.split(re1)).toEqual(["Harry Trump", "Fred Barney", "Helen Rigby", "Bill Abel", "Chris Hand", ""]) var str2 = "a, b, c, d, e"; var re2 = /,\s*/g; expect(str2.split(re2)).toEqual(["a", "b", "c", "d", "e"]); var str3 = "foo-bar_baz(qux-quux)_corge"; var re3 = new RegExp("[_-](?![^(]*\\))", "g"); expect(str3.split(re3)).toEqual(["foo", "bar", "baz(qux-quux)", "corge"]); var str4 = "a, b, {c, d, e}, f, g, h"; var re4 = /,(?![^{]*\})/; expect(str4.split(re4)).toEqual(["a", " b", " {c, d, e}", " f", " g", " h"]); }) test('toLowerCase', () => { // #TEST String.toLowerCase const str1 = '中文简体 zh-CN || zh-Hans'; const str2 = 'ALPHABET'; console.log('str1'.toLowerCase()); // 中文简体 zh-cn || zh-hans console.log(str2.toLowerCase()); // "alphabet" // #END expect(str1.toLowerCase()).toEqual("中文简体 zh-cn || zh-hans"); expect(str2.toLowerCase()).toEqual("alphabet"); }) test('toUpperCase', () => { // #TEST String.toUpperCase const sentence = 'The quick brown fox jumps over the lazy dog.'; console.log(sentence.toUpperCase()); // expected output: "THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG." // #END expect(sentence.toUpperCase()).toEqual("THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG."); }) test("lastIndexOf", () => { // #TEST String.lastIndexOf console.log('canal'.lastIndexOf('a'))//3 // #END expect('canal'.lastIndexOf('a')).toEqual(3); expect('canal'.lastIndexOf('a', 2)).toEqual(1); expect('canal'.lastIndexOf('a', 0)).toEqual(-1); expect('canal'.lastIndexOf('')).toEqual(5); expect('canal'.lastIndexOf('', 2)).toEqual(2); expect("Blue Whale, Killer Whale".lastIndexOf("Whale")).toEqual(19); expect("Blue Whale, Killer Whale".lastIndexOf("blue")).toEqual(-1); }) test("substring", () => { // #TEST String.substr var str1 = "Mozilla"; let ret = str1.substring(0, 3) console.log(ret)//"Moz" // #END expect(ret).toEqual("Moz"); expect(str1.substring(3, 0)).toEqual("Moz"); expect(str1.substring(3, -3)).toEqual("Moz"); var str2 = "hello world"; // expect(str2.substring()).toEqual("hello world"); expect(str2.substring(6)).toEqual("world"); expect(str2.substring(0)).toEqual("hello world"); expect(str2.substring(0, 5)).toEqual("hello"); expect(str2.substring(6, 11)).toEqual("world"); expect(str2.substring(3, 8)).toEqual("lo wo"); expect(str2.substring(0, -1)).toEqual(""); expect(str2.substring(0, 20)).toEqual("hello world"); var str3 = "aaa"; expect(str3.substring(10, 1)).toEqual("aa"); }) test("trim", () => { // #TEST String.trim let greeting = ' Hello world! '; let ret = greeting.trim() console.log(ret) //Hello world! // #END expect(ret).toEqual("Hello world!"); const orig : string = ' foo '; expect(orig.trim()).toEqual("foo"); const str = '\t\t\tworld\t\t\t'; expect(str.trim()).toEqual('world'); const str1 = '\n\n\nhello\n\n\n'; expect(str1.trim()).toEqual('hello'); const str2 = ''; expect(str2.trim()).toEqual(''); }) test("trimStart", () => { const str = ' Hello World '; expect(str.trimStart()).toEqual('Hello World '); const str1 = 'Hello World'; expect(str1.trimStart()).toEqual(str1); const str2 = ' \t \n '; expect(str2.trimStart()).toEqual(''); }) test("trimEnd", () => { const str = ' Hello World '; expect(str.trimEnd()).toEqual(' Hello World'); const str1 = 'Hello World'; expect(str1.trimEnd()).toEqual(str1); const str2 = ' \t \n '; expect(str2.trimEnd()).toEqual(''); }) test("startsWith", () => { // #TEST String.startsWith const str = 'hello world'; console.log(str.startsWith('hello'))//true // #END expect(str.startsWith('hello')).toEqual(true); expect(str.startsWith('h')).toEqual(true); expect(str.startsWith('HELLO')).toEqual(false); expect(str.startsWith('o')).toEqual(false); const str1 : string = "To be, or not to be, that is the question."; expect(str1.startsWith("To be")).toEqual(true); expect(str1.startsWith("not to be")).toEqual(false); expect(str1.startsWith("not to be", 10)).toEqual(true); expect(str1.startsWith("not to be", 8)).toEqual(false); }) test("matchAll", () => { // const reg = /t(e)(st(\d?))/g; // const str = 'test1test2'; // const result = [...str.matchAll(reg)]; // expect(result[0]).toEqual(["test1", "e", "st1", "1"]); // expect(result[1]).toEqual(["test2", "e", "st2", "2"]); // const reg1 = /[A-Z]/g; // const str1 = 'The quick brown fox jumps over the lazy dog'; // const result1 = [...str1.matchAll(reg1)]; // expect(result1[0]).toEqual(["T"]); }) test("replaceAll", () => { // const p = 'The quick brown fox jumps over the lazy dog. If the dog reacted, was it really lazy?'; // expect(p.replaceAll('dog', 'monkey')).toEqual("The quick brown fox jumps over the lazy monkey. If the monkey reacted, was it really lazy?"); // const regex = /Dog/ig; // expect(p.replaceAll(regex, 'ferret')).toEqual( "The quick brown fox jumps over the lazy ferret. If the ferret reacted, was it really lazy?"); // const reg = /[aeiou]/g; // const str = 'The quick brown fox jumps over the lazy dog'; // const result = str.replaceAll(reg, '!'); // expect(result).toEqual("Th! q!!ck br!wn f!x j!mps !v!r th! l!zy d!g"); // const reg1 = /o/g; // const str1 = 'Hello World!'; // const result1 = str1.replaceAll(reg1, (match, offset, original) => { // expect(match).toEqual('o'); // expect(original[offset]).toEqual('o'); // expect(original).toEqual(str1); // return `x`; // }); // expect(result1).toEqual("Hellx Wxrld!"); }) }) }