functionalscript/types/string_set/test.f.js

FunctionalScript is a purely functional subset of JavaScript

import { contains, fromValues, remove, set } from "./module.f.js";
export default {
    example: () => {
        let mySet = fromValues(['apple', 'banana', 'cherry']);
        if (!contains('banana')(mySet)) {
            throw '1';
        }
        if (contains('date')(mySet)) {
            throw '2';
        }
        mySet = set('date')(mySet);
        if (!contains('date')(mySet)) {
            throw '3';
        }
        mySet = remove('banana')(mySet);
        if (contains('banana')(mySet)) {
            throw '4';
        }
    },
    contains: () => {
        const r = set('hello')(null);
        if (!contains('hello')(r)) {
            throw r;
        }
        if (contains('hello1')(r)) {
            throw r;
        }
    },
    remove: () => {
        let r = set('hello')(null);
        r = set('world')(r);
        r = set('HELLO')(r);
        r = set('WORLD!')(r);
        if (!contains('hello')(r)) {
            throw r;
        }
        if (contains('hello1')(r)) {
            throw r;
        }
        if (!contains('HELLO')(r)) {
            throw r;
        }
        if (contains('WORLD')(r)) {
            throw r;
        }
        if (!contains('world')(r)) {
            throw r;
        }
        if (contains('world!')(r)) {
            throw r;
        }
        if (!contains('WORLD!')(r)) {
            throw r;
        }
        //
        r = remove('hello')(r);
        if (contains('hello')(r)) {
            throw r;
        }
        if (!contains('world')(r)) {
            throw r;
        }
        r = remove('world')(r);
        if (contains('world')(r)) {
            throw r;
        }
        if (!contains('HELLO')(r)) {
            throw r;
        }
        r = remove('HELLO')(r);
        if (contains('HELLO')(r)) {
            throw r;
        }
        if (!contains('WORLD!')(r)) {
            throw r;
        }
        r = remove('WORLD!')(r);
        if (r !== null) {
            throw r;
        }
    }
};