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/* global fixture */
import '~/pager';
describe('pager', () => {
const Pager = window.Pager;
it('is defined on window', () => {
expect(window.Pager).toBeDefined();
});
describe('init', () => {
const originalHref = window.location.href;
beforeEach(() => {
setFixtures('<div class="content_list"></div><div class="loading"></div>');
spyOn($, 'ajax');
});
afterEach(() => {
window.history.replaceState({}, null, originalHref);
});
it('should use data-href attribute from list element', () => {
const href = `${gl.TEST_HOST}/some_list.json`;
setFixtures(`<div class="content_list" data-href="${href}"></div>`);
Pager.init();
expect(Pager.url).toBe(href);
});
it('should use current url if data-href attribute not provided', () => {
const href = `${gl.TEST_HOST}/some_list`;
spyOn(gl.utils, 'removeParams').and.returnValue(href);
Pager.init();
expect(Pager.url).toBe(href);
});
it('should get initial offset from query parameter', () => {
window.history.replaceState({}, null, '?offset=100');
Pager.init();
expect(Pager.offset).toBe(100);
});
it('keeps extra query parameters from url', () => {
window.history.replaceState({}, null, '?filter=test&offset=100');
const href = `${gl.TEST_HOST}/some_list?filter=test`;
spyOn(gl.utils, 'removeParams').and.returnValue(href);
Pager.init();
expect(gl.utils.removeParams).toHaveBeenCalledWith(['limit', 'offset']);
expect(Pager.url).toEqual(href);
});
});
describe('getOld', () => {
beforeEach(() => {
setFixtures('<div class="content_list" data-href="/some_list"></div><div class="loading"></div>');
Pager.init();
});
it('shows loader while loading next page', () => {
spyOn(Pager.loading, 'show');
Pager.getOld();
expect(Pager.loading.show).toHaveBeenCalled();
});
it('hides loader on success', () => {
spyOn($, 'ajax').and.callFake(options => options.success({}));
spyOn(Pager.loading, 'hide');
Pager.getOld();
expect(Pager.loading.hide).toHaveBeenCalled();
});
it('hides loader on error', () => {
spyOn($, 'ajax').and.callFake(options => options.error());
spyOn(Pager.loading, 'hide');
Pager.getOld();
expect(Pager.loading.hide).toHaveBeenCalled();
});
it('sends request to url with offset and limit params', () => {
spyOn($, 'ajax');
Pager.offset = 100;
Pager.limit = 20;
Pager.getOld();
const [{ data, url }] = $.ajax.calls.argsFor(0);
expect(data).toBe('limit=20&offset=100');
expect(url).toBe('/some_list');
});
});
});
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