gitlab-org--gitlab-foss/spec/javascripts/vue_shared/components/table_pagination_spec.js

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import Vue from 'vue';
import paginationComp from '~/vue_shared/components/table_pagination.vue';
describe('Pagination component', () => {
let component;
let PaginationComponent;
let spy;
let mountComponent;
beforeEach(() => {
spy = jasmine.createSpy('spy');
PaginationComponent = Vue.extend(paginationComp);
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mountComponent = function(props) {
return new PaginationComponent({
propsData: props,
}).$mount();
};
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});
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describe('render', () => {
it('should not render anything', () => {
component = mountComponent({
pageInfo: {
nextPage: NaN,
page: 1,
perPage: 20,
previousPage: NaN,
total: 15,
totalPages: 1,
},
change: spy,
});
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expect(component.$el.childNodes.length).toEqual(0);
});
describe('prev button', () => {
it('should be disabled and non clickable', () => {
component = mountComponent({
pageInfo: {
nextPage: 2,
page: 1,
perPage: 20,
previousPage: NaN,
total: 84,
totalPages: 5,
},
change: spy,
});
expect(
component.$el.querySelector('.js-previous-button').classList.contains('disabled'),
).toEqual(true);
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component.$el.querySelector('.js-previous-button .page-link').click();
expect(spy).not.toHaveBeenCalled();
});
it('should be disabled and non clickable when total and totalPages are NaN', () => {
component = mountComponent({
pageInfo: {
nextPage: 2,
page: 1,
perPage: 20,
previousPage: NaN,
total: NaN,
totalPages: NaN,
},
change: spy,
});
expect(
component.$el.querySelector('.js-previous-button').classList.contains('disabled'),
).toEqual(true);
component.$el.querySelector('.js-previous-button .page-link').click();
expect(spy).not.toHaveBeenCalled();
});
it('should be enabled and clickable', () => {
component = mountComponent({
pageInfo: {
nextPage: 3,
page: 2,
perPage: 20,
previousPage: 1,
total: 84,
totalPages: 5,
},
change: spy,
});
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component.$el.querySelector('.js-previous-button .page-link').click();
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expect(spy).toHaveBeenCalledWith(1);
});
it('should be enabled and clickable when total and totalPages are NaN', () => {
component = mountComponent({
pageInfo: {
nextPage: 3,
page: 2,
perPage: 20,
previousPage: 1,
total: NaN,
totalPages: NaN,
},
change: spy,
});
component.$el.querySelector('.js-previous-button .page-link').click();
expect(spy).toHaveBeenCalledWith(1);
});
});
describe('first button', () => {
it('should call the change callback with the first page', () => {
component = mountComponent({
pageInfo: {
nextPage: 3,
page: 2,
perPage: 20,
previousPage: 1,
total: 84,
totalPages: 5,
},
change: spy,
});
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const button = component.$el.querySelector('.js-first-button .page-link');
expect(button.textContent.trim()).toEqual('« First');
button.click();
expect(spy).toHaveBeenCalledWith(1);
});
it('should call the change callback with the first page when total and totalPages are NaN', () => {
component = mountComponent({
pageInfo: {
nextPage: 3,
page: 2,
perPage: 20,
previousPage: 1,
total: NaN,
totalPages: NaN,
},
change: spy,
});
const button = component.$el.querySelector('.js-first-button .page-link');
expect(button.textContent.trim()).toEqual('« First');
button.click();
expect(spy).toHaveBeenCalledWith(1);
});
});
describe('last button', () => {
it('should call the change callback with the last page', () => {
component = mountComponent({
pageInfo: {
nextPage: 3,
page: 2,
perPage: 20,
previousPage: 1,
total: 84,
totalPages: 5,
},
change: spy,
});
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const button = component.$el.querySelector('.js-last-button .page-link');
expect(button.textContent.trim()).toEqual('Last »');
button.click();
expect(spy).toHaveBeenCalledWith(5);
});
it('should not render', () => {
component = mountComponent({
pageInfo: {
nextPage: 3,
page: 2,
perPage: 20,
previousPage: 1,
total: NaN,
totalPages: NaN,
},
change: spy,
});
expect(component.$el.querySelector('.js-last-button .page-link')).toBeNull();
});
});
describe('next button', () => {
it('should be disabled and non clickable', () => {
component = mountComponent({
pageInfo: {
nextPage: NaN,
page: 5,
perPage: 20,
previousPage: 4,
total: 84,
totalPages: 5,
},
change: spy,
});
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expect(component.$el.querySelector('.js-next-button').textContent.trim()).toEqual('Next');
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component.$el.querySelector('.js-next-button .page-link').click();
expect(spy).not.toHaveBeenCalled();
});
it('should be disabled and non clickable when total and totalPages are NaN', () => {
component = mountComponent({
pageInfo: {
nextPage: NaN,
page: 5,
perPage: 20,
previousPage: 4,
total: NaN,
totalPages: NaN,
},
change: spy,
});
expect(component.$el.querySelector('.js-next-button').textContent.trim()).toEqual('Next');
component.$el.querySelector('.js-next-button .page-link').click();
expect(spy).not.toHaveBeenCalled();
});
it('should be enabled and clickable', () => {
component = mountComponent({
pageInfo: {
nextPage: 4,
page: 3,
perPage: 20,
previousPage: 2,
total: 84,
totalPages: 5,
},
change: spy,
});
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component.$el.querySelector('.js-next-button .page-link').click();
expect(spy).toHaveBeenCalledWith(4);
});
it('should be enabled and clickable when total and totalPages are NaN', () => {
component = mountComponent({
pageInfo: {
nextPage: 4,
page: 3,
perPage: 20,
previousPage: 2,
total: NaN,
totalPages: NaN,
},
change: spy,
});
component.$el.querySelector('.js-next-button .page-link').click();
expect(spy).toHaveBeenCalledWith(4);
});
});
describe('numbered buttons', () => {
it('should render 5 pages', () => {
component = mountComponent({
pageInfo: {
nextPage: 4,
page: 3,
perPage: 20,
previousPage: 2,
total: 84,
totalPages: 5,
},
change: spy,
});
expect(component.$el.querySelectorAll('.page').length).toEqual(5);
});
it('should not render any page', () => {
component = mountComponent({
pageInfo: {
nextPage: 4,
page: 3,
perPage: 20,
previousPage: 2,
total: NaN,
totalPages: NaN,
},
change: spy,
});
expect(component.$el.querySelectorAll('.page').length).toEqual(0);
});
});
describe('spread operator', () => {
it('should render', () => {
component = mountComponent({
pageInfo: {
nextPage: 4,
page: 3,
perPage: 20,
previousPage: 2,
total: 84,
totalPages: 10,
},
change: spy,
});
expect(component.$el.querySelector('.separator').textContent.trim()).toEqual('...');
});
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it('should not render', () => {
component = mountComponent({
pageInfo: {
nextPage: 4,
page: 3,
perPage: 20,
previousPage: 2,
total: NaN,
totalPages: NaN,
},
change: spy,
});
expect(component.$el.querySelector('.separator')).toBeNull();
});
});
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});
});