118 lines
3.0 KiB
JavaScript
118 lines
3.0 KiB
JavaScript
import WhitespaceUtilities from "../../src/utilities/whitespace-utilities.js";
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it("constructor", () => {
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expect(() => new WhitespaceUtilities()).toThrow(TypeError);
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expect(() => new WhitespaceUtilities(1)).toThrow(TypeError);
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expect(() => new WhitespaceUtilities("")).toThrow(TypeError);
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expect(() => new WhitespaceUtilities([])).toThrow(TypeError);
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expect(() => new WhitespaceUtilities([""])).toThrow(TypeError);
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expect(() => new WhitespaceUtilities(["a"])).toThrow(TypeError);
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expect(() => new WhitespaceUtilities("a")).toThrow(TypeError);
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expect(() => new WhitespaceUtilities(["\r\n"])).toThrow(TypeError);
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expect(new WhitespaceUtilities("\r\n")).toBeInstanceOf(WhitespaceUtilities);
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expect(new WhitespaceUtilities(["\r", "\n"])).toBeInstanceOf(
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WhitespaceUtilities,
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);
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});
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const utils = new WhitespaceUtilities(" ");
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describe("trimStart", () => {
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for (const [string, expected] of [
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["", ""],
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[" ", ""],
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[" ".repeat(3), ""],
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["a", "a"],
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["a" + " ".repeat(3), "a "],
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[" ".repeat(3) + "a", "a"],
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[" ".repeat(3) + "a" + " ".repeat(3), "a "],
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]) {
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it(JSON.stringify(string), () => {
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expect(utils.trimStart(string)).toBe(expected);
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});
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}
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});
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describe("trimEnd", () => {
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for (const [string, expected] of [
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["", ""],
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[" ", ""],
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[" ".repeat(3), ""],
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["a", "a"],
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["a" + " ".repeat(3), "a"],
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[" ".repeat(3) + "a", " a"],
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[" ".repeat(3) + "a" + " ".repeat(3), " a"],
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]) {
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it(JSON.stringify(string), () => {
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expect(utils.trimEnd(string)).toBe(expected);
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});
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}
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});
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describe("trim", () => {
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for (const [string, expected] of [
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["", ""],
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[" ", ""],
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[" ".repeat(3), ""],
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["a", "a"],
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["a" + " ".repeat(3), "a"],
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[" ".repeat(3) + "a", "a"],
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[" ".repeat(3) + "a" + " ".repeat(3), "a"],
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]) {
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it(JSON.stringify(string), () => {
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expect(utils.trim(string)).toBe(expected);
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});
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}
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});
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describe("getLeadingWhitespaceCount", () => {
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for (const [string, expected] of [
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["", 0],
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[" ", 1],
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[" ".repeat(3), 3],
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["a", 0],
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["a" + " ".repeat(3), 0],
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[" ".repeat(3) + "a", 3],
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[" ".repeat(3) + "a" + " ".repeat(3), 3],
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]) {
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it(JSON.stringify(string), () => {
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expect(utils.getLeadingWhitespaceCount(string)).toBe(expected);
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});
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}
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});
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describe("getTrailingWhitespaceCount", () => {
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for (const [string, expected] of [
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["", 0],
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[" ", 1],
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[" ".repeat(3), 3],
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["a", 0],
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["a" + " ".repeat(3), 3],
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[" ".repeat(3) + "a", 0],
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[" ".repeat(3) + "a" + " ".repeat(3), 3],
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]) {
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it(JSON.stringify(string), () => {
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expect(utils.getTrailingWhitespaceCount(string)).toBe(expected);
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});
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}
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});
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describe("split", () => {
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for (const string of [
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"",
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" ",
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" ".repeat(3),
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" a",
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" ".repeat(3) + "a",
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"a ",
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"a" + " ".repeat(3),
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" a ",
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" ".repeat(3) + "a" + " ".repeat(3),
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" a a a ",
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]) {
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it(JSON.stringify(string), () => {
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expect(utils.split(string)).toStrictEqual(string.split(/ +/));
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});
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}
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});
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