universal_bot-ts

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import {Navigation} from '../../src';
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describe('Navigation tests', () => {
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    let navigation: Navigation<number | { id: number, title: string }>;
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    let elements: any = null;
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    beforeEach(() => {
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        navigation = new Navigation();
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        elements = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
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    });
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    it('Get max page in navigation', () => {
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        expect(navigation.maxVisibleElements).toEqual(5);
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        expect(navigation.thisPage).toEqual(0);
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        expect(navigation.getMaxPage(elements)).toEqual(2);
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        elements.push(11);
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        expect(navigation.getMaxPage(elements)).toEqual(3);
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    });
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    it('Get elements for navigation', () => {
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        let tmpElements = navigation.getPageElements(elements, '');
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        expect(tmpElements).toEqual([1, 2, 3, 4, 5]);
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        tmpElements = navigation.getPageElements(elements, 'дальше');
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        expect(navigation.thisPage).toEqual(1);
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        expect(tmpElements).toEqual([6, 7, 8, 9, 10]);
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        tmpElements = navigation.getPageElements(elements, 'дальше');
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        expect(navigation.thisPage).toEqual(1);
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        expect(tmpElements).toEqual([6, 7, 8, 9, 10]);
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        tmpElements = navigation.getPageElements(elements, 'назад');
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        expect(navigation.thisPage).toEqual(0);
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        expect(tmpElements).toEqual([1, 2, 3, 4, 5]);
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        tmpElements = navigation.getPageElements(elements, 'назад');
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        expect(navigation.thisPage).toEqual(0);
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        expect(tmpElements).toEqual([1, 2, 3, 4, 5]);
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    });
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    it('Selected number page', () => {
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        navigation.elements = elements;
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        expect(navigation.numberPage('1 страница')).toBe(true);
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        expect(navigation.thisPage).toEqual(0);
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        expect(navigation.numberPage('2 страница')).toBe(true);
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        expect(navigation.thisPage).toEqual(1);
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        expect(navigation.numberPage('3 страница')).toBe(true);
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        expect(navigation.thisPage).toEqual(1);
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        expect(navigation.numberPage('-2 страница')).toBe(true);
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        expect(navigation.thisPage).toEqual(0);
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    });
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    it('Selected element', () => {
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        navigation.elements = elements;
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        let selectedElement = navigation.selectedElement(elements, `2`);
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        expect(selectedElement).toEqual(2);
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        elements = [];
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        for (let i = 0; i < 10; i++) {
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            elements.push({
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                id: i + 1,
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                title: `привет${i}`
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            })
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        }
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        elements[3].title = 'приветствую тебя мир';
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        selectedElement = navigation.selectedElement(elements, '2');
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        expect(selectedElement).toEqual({id: 2, title: 'привет1'});
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        selectedElement = navigation.selectedElement(elements, 'приветствую тебя мир', ['title']);
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        expect(selectedElement).toEqual({id: 4, title: 'приветствую тебя мир'});
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        selectedElement = navigation.selectedElement(elements, 'привет', ['title'], 1);
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        expect(selectedElement).toEqual({id: 6, title: 'привет5'});
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        selectedElement = navigation.selectedElement(elements, 'пока', ['title'], 1);
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        expect(selectedElement).toEqual(null);
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    });
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    it('Page navigation arrow', () => {
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        navigation.elements = elements;
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        expect(navigation.getPageNav()).toEqual(['Дальше 👉']);
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        navigation.thisPage = 1;
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        expect(navigation.getPageNav()).toEqual(['👈 Назад']);
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        navigation.maxVisibleElements = 2;
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        expect(navigation.getPageNav()).toEqual(['👈 Назад', 'Дальше 👉']);
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    });
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    it('Page navigation number', () => {
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        navigation.elements = elements;
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        expect(navigation.getPageNav(true)).toEqual(['[1]', '2']);
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        navigation.thisPage = 1;
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        expect(navigation.getPageNav(true)).toEqual(['1', '[2]']);
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        navigation.maxVisibleElements = 1;
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        navigation.thisPage = 0;
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        expect(navigation.getPageNav(true)).toEqual(['[1]', '2', '3', '4', '5', '... 10']);
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        navigation.thisPage = 1;
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        expect(navigation.getPageNav(true)).toEqual(['1', '[2]', '3', '4', '5', '... 10']);
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        navigation.thisPage = 2;
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        expect(navigation.getPageNav(true)).toEqual(['1', '2', '[3]', '4', '5', '... 10']);
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        navigation.thisPage = 3;
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        expect(navigation.getPageNav(true)).toEqual(['1', '2', '3', '[4]', '5', '6', '... 10']);
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        navigation.thisPage = 4;
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        expect(navigation.getPageNav(true)).toEqual(['1 ...', '3', '4', '[5]', '6', '7', '... 10']);
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        navigation.thisPage = 5;
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        expect(navigation.getPageNav(true)).toEqual(['1 ...', '4', '5', '[6]', '7', '8', '... 10']);
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        navigation.thisPage = 6;
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        expect(navigation.getPageNav(true)).toEqual(['1 ...', '5', '6', '[7]', '8', '9', '10']);
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        navigation.thisPage = 7;
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        expect(navigation.getPageNav(true)).toEqual(['1 ...', '6', '7', '[8]', '9', '10']);
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        navigation.thisPage = 8;
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        expect(navigation.getPageNav(true)).toEqual(['1 ...', '7', '8', '[9]', '10']);
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        navigation.thisPage = 9;
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        expect(navigation.getPageNav(true)).toEqual(['1 ...', '8', '9', '[10]']);
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    })
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});
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