functionalscript/types/array/test.f.js

FunctionalScript is a purely functional subset of JavaScript

import { at, first, last, head, tail, splitFirst, splitLast, empty } from "./module.f.js";
import * as json from "../../json/module.f.js";
import { sort } from "../object/module.f.js";
const stringify = json.stringify(sort);
export default {
    stringify: () => {
        const result = stringify([1, 20, 300]);
        if (result !== '[1,20,300]') {
            throw result;
        }
    },
    at: [
        () => {
            const result = at(2)([1, 20, 300]);
            if (result !== 300) {
                throw result;
            }
        },
        () => {
            const result = at(3)([1, 20, 300]);
            if (result !== null) {
                throw result;
            }
        }
    ],
    first: [
        () => {
            const result = first([1, 20, 300]);
            if (result !== 1) {
                throw result;
            }
        },
        () => {
            const result = first([]);
            if (result !== null) {
                throw result;
            }
        }
    ],
    last: [
        () => {
            const result = last([1, 20, 300]);
            if (result !== 300) {
                throw result;
            }
        },
        () => {
            const result = last([]);
            if (result !== null) {
                throw result;
            }
        }
    ],
    head: [
        () => {
            const result = head([1, 20, 300]);
            if (result === null) {
                throw result;
            }
            const str = stringify(result);
            if (str !== '[1,20]') {
                throw str;
            }
        },
        () => {
            const result = head([]);
            if (result !== null) {
                throw result;
            }
        }
    ],
    tail: [
        () => {
            const result = tail([1, 20, 300]);
            const str = stringify(result);
            if (str !== '[20,300]') {
                throw str;
            }
        },
        () => {
            const result = tail([]);
            if (result !== null) {
                throw result;
            }
        }
    ],
    splitFirst: [
        () => {
            const result = splitFirst([1, 20, 300]);
            const str = stringify(result);
            if (str !== '[1,[20,300]]') {
                throw str;
            }
        },
        () => {
            const result = splitFirst([]);
            if (result !== null) {
                throw result;
            }
        },
    ],
    splitLast: [
        () => {
            const result = splitLast([1, 20, 300]);
            const str = stringify(result);
            if (str !== '[[1,20],300]') {
                throw str;
            }
        },
        () => {
            const result = splitLast([]);
            if (result !== null) {
                throw result;
            }
        }
    ],
    empty: () => {
        const x = empty;
        const a = x;
        const b = x;
        const c = [...a, ...b, ...x];
        if (c.length !== 0) {
            throw c;
        }
    }
};