147 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
			
		
		
	
	
			147 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
import $ from 'jquery';
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import MockAdapter from 'axios-mock-adapter';
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import axios from '~/lib/utils/axios_utils';
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import Pager from '~/pager';
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describe('pager', () => {
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  let axiosMock;
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  beforeEach(() => {
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    axiosMock = new MockAdapter(axios);
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  });
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  afterEach(() => {
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    axiosMock.restore();
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  });
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  describe('init', () => {
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    const originalHref = window.location.href;
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    beforeEach(() => {
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      setFixtures('<div class="content_list"></div><div class="loading"></div>');
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      spyOn($.fn, 'endlessScroll').and.stub();
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    });
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    afterEach(() => {
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      window.history.replaceState({}, null, originalHref);
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    });
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    it('should use data-href attribute from list element', () => {
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      const href = `${gl.TEST_HOST}/some_list.json`;
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      setFixtures(`<div class="content_list" data-href="${href}"></div>`);
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      Pager.init();
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      expect(Pager.url).toBe(href);
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    });
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    it('should use current url if data-href attribute not provided', () => {
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      const href = `${gl.TEST_HOST}/some_list`;
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      spyOnDependency(Pager, 'removeParams').and.returnValue(href);
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      Pager.init();
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      expect(Pager.url).toBe(href);
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    });
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    it('should get initial offset from query parameter', () => {
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      window.history.replaceState({}, null, '?offset=100');
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      Pager.init();
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      expect(Pager.offset).toBe(100);
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    });
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    it('keeps extra query parameters from url', () => {
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      window.history.replaceState({}, null, '?filter=test&offset=100');
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      const href = `${gl.TEST_HOST}/some_list?filter=test`;
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      const removeParams = spyOnDependency(Pager, 'removeParams').and.returnValue(href);
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      Pager.init();
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      expect(removeParams).toHaveBeenCalledWith(['limit', 'offset']);
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      expect(Pager.url).toEqual(href);
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    });
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  });
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  describe('getOld', () => {
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    const urlRegex = /(.*)some_list(.*)$/;
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    function mockSuccess() {
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      axiosMock.onGet(urlRegex).reply(200, {
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        count: 0,
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        html: '',
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      });
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    }
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    function mockError() {
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      axiosMock.onGet(urlRegex).networkError();
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    }
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    beforeEach(() => {
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      setFixtures(
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        '<div class="content_list" data-href="/some_list"></div><div class="loading"></div>',
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      );
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      spyOn(axios, 'get').and.callThrough();
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      Pager.init();
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    });
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    it('shows loader while loading next page', done => {
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      mockSuccess();
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      spyOn(Pager.loading, 'show');
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      Pager.getOld();
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      setTimeout(() => {
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        expect(Pager.loading.show).toHaveBeenCalled();
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        done();
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      });
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    });
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    it('hides loader on success', done => {
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      mockSuccess();
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      spyOn(Pager.loading, 'hide');
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      Pager.getOld();
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      setTimeout(() => {
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        expect(Pager.loading.hide).toHaveBeenCalled();
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        done();
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      });
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    });
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    it('hides loader on error', done => {
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      mockError();
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      spyOn(Pager.loading, 'hide');
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      Pager.getOld();
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      setTimeout(() => {
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        expect(Pager.loading.hide).toHaveBeenCalled();
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        done();
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      });
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    });
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    it('sends request to url with offset and limit params', done => {
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      Pager.offset = 100;
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      Pager.limit = 20;
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      Pager.getOld();
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      setTimeout(() => {
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        const [url, params] = axios.get.calls.argsFor(0);
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        expect(params).toEqual({
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          params: {
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            limit: 20,
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            offset: 100,
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          },
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        });
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        expect(url).toBe('/some_list');
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        done();
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      });
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    });
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  });
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});
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