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pagination.spec.js
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pagination.spec.js
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describe('pagination directive', function () {
var $compile, $rootScope, element;
beforeEach(module('ui.bootstrap.pagination'));
beforeEach(module('template/pagination/pagination.html'));
beforeEach(inject(function(_$compile_, _$rootScope_) {
$compile = _$compile_;
$rootScope = _$rootScope_;
$rootScope.total = 47; // 5 pages
$rootScope.currentPage = 3;
element = $compile('<pagination total-items="total" page="currentPage"></pagination>')($rootScope);
$rootScope.$digest();
}));
function getPaginationBarSize() {
return element.find('li').length;
}
function getPaginationEl(index) {
return element.find('li').eq(index);
}
function clickPaginationEl(index) {
getPaginationEl(index).find('a').click();
}
function updateCurrentPage(value) {
$rootScope.currentPage = value;
$rootScope.$digest();
}
it('has a "pagination" css class', function() {
expect(element.hasClass('pagination')).toBe(true);
});
it('contains one ul and num-pages + 2 li elements', function() {
expect(element.find('ul').length).toBe(1);
expect(getPaginationBarSize()).toBe(7);
expect(getPaginationEl(0).text()).toBe('Previous');
expect(getPaginationEl(-1).text()).toBe('Next');
});
it('has the number of the page as text in each page item', function() {
for (var i = 1; i <= 5; i++) {
expect(getPaginationEl(i).text()).toEqual(''+i);
}
});
it('sets the current page to be active', function() {
expect(getPaginationEl($rootScope.currentPage).hasClass('active')).toBe(true);
});
it('disables the "previous" link if current page is 1', function() {
updateCurrentPage(1);
expect(getPaginationEl(0).hasClass('disabled')).toBe(true);
});
it('disables the "next" link if current page is last', function() {
updateCurrentPage(5);
expect(getPaginationEl(-1).hasClass('disabled')).toBe(true);
});
it('changes currentPage if a page link is clicked', function() {
clickPaginationEl(2);
expect($rootScope.currentPage).toBe(2);
});
it('changes currentPage if the "previous" link is clicked', function() {
clickPaginationEl(0);
expect($rootScope.currentPage).toBe(2);
});
it('changes currentPage if the "next" link is clicked', function() {
clickPaginationEl(-1);
expect($rootScope.currentPage).toBe(4);
});
it('does not change the current page on "previous" click if already at first page', function() {
updateCurrentPage(1);
clickPaginationEl(0);
expect($rootScope.currentPage).toBe(1);
});
it('does not change the current page on "next" click if already at last page', function() {
updateCurrentPage(5);
clickPaginationEl(-1);
expect($rootScope.currentPage).toBe(5);
});
it('changes the number of pages when `total-items` changes', function() {
$rootScope.total = 78; // 8 pages
$rootScope.$digest();
expect(getPaginationBarSize()).toBe(10);
expect(getPaginationEl(0).text()).toBe('Previous');
expect(getPaginationEl(-1).text()).toBe('Next');
});
it('does not "break" when `total-items` is undefined', function() {
$rootScope.total = undefined;
$rootScope.$digest();
expect(getPaginationBarSize()).toBe(3); // Previous, 1, Next
expect(getPaginationEl(0)).toHaveClass('disabled');
expect(getPaginationEl(1)).toHaveClass('active');
expect(getPaginationEl(2)).toHaveClass('disabled');
});
it('does not "break" when `total-items` is negative', function() {
$rootScope.total = -1;
$rootScope.$digest();
expect(getPaginationBarSize()).toBe(3); // Previous, 1, Next
expect(getPaginationEl(0)).toHaveClass('disabled');
expect(getPaginationEl(1)).toHaveClass('active');
expect(getPaginationEl(2)).toHaveClass('disabled');
});
it('does not change the current page when `total-items` changes but is valid', function() {
$rootScope.currentPage = 1;
$rootScope.total = 18; // 2 pages
$rootScope.$digest();
expect($rootScope.currentPage).toBe(1);
});
describe('`items-per-page`', function () {
beforeEach(inject(function() {
$rootScope.perpage = 5;
element = $compile('<pagination total-items="total" items-per-page="perpage" page="currentPage" on-select-page="selectPageHandler(page)"></pagination>')($rootScope);
$rootScope.$digest();
}));
it('changes the number of pages', function() {
expect(getPaginationBarSize()).toBe(12);
expect(getPaginationEl(0).text()).toBe('Previous');
expect(getPaginationEl(-1).text()).toBe('Next');
});
it('changes the number of pages when changes', function() {
$rootScope.perpage = 20;
$rootScope.$digest();
expect(getPaginationBarSize()).toBe(5);
expect(getPaginationEl(0).text()).toBe('Previous');
expect(getPaginationEl(-1).text()).toBe('Next');
});
it('selects the last page when current page is too big', function() {
$rootScope.perpage = 30;
$rootScope.$digest();
expect($rootScope.currentPage).toBe(2);
expect(getPaginationBarSize()).toBe(4);
expect(getPaginationEl(0).text()).toBe('Previous');
expect(getPaginationEl(-1).text()).toBe('Next');
});
it('displays a single page when it is negative', function() {
$rootScope.perpage = -1;
$rootScope.$digest();
expect(getPaginationBarSize()).toBe(3);
expect(getPaginationEl(0).text()).toBe('Previous');
expect(getPaginationEl(1).text()).toBe('1');
expect(getPaginationEl(-1).text()).toBe('Next');
});
});
describe('executes `on-select-page` expression', function () {
beforeEach(inject(function() {
$rootScope.selectPageHandler = jasmine.createSpy('selectPageHandler');
element = $compile('<pagination total-items="total" page="currentPage" on-select-page="selectPageHandler(page)"></pagination>')($rootScope);
$rootScope.$digest();
}));
it('when an element is clicked', function() {
clickPaginationEl(2);
expect($rootScope.selectPageHandler).toHaveBeenCalledWith(2);
});
});
describe('when `page` is not a number', function () {
it('handles string', function() {
updateCurrentPage('2');
expect(getPaginationEl(2)).toHaveClass('active');
updateCurrentPage('04');
expect(getPaginationEl(4)).toHaveClass('active');
});
});
describe('with `max-size` option', function () {
beforeEach(inject(function() {
$rootScope.total = 98; // 10 pages
$rootScope.currentPage = 3;
$rootScope.maxSize = 5;
element = $compile('<pagination total-items="total" page="currentPage" max-size="maxSize"></pagination>')($rootScope);
$rootScope.$digest();
}));
it('contains maxsize + 2 li elements', function() {
expect(getPaginationBarSize()).toBe($rootScope.maxSize + 2);
expect(getPaginationEl(0).text()).toBe('Previous');
expect(getPaginationEl(-1).text()).toBe('Next');
});
it('shows the page number even if it can\'t be shown in the middle', function() {
updateCurrentPage(1);
expect(getPaginationEl(1)).toHaveClass('active');
updateCurrentPage(10);
expect(getPaginationEl(-2)).toHaveClass('active');
});
it('shows the page number in middle after the next link is clicked', function() {
updateCurrentPage(6);
clickPaginationEl(-1);
expect($rootScope.currentPage).toBe(7);
expect(getPaginationEl(3)).toHaveClass('active');
expect(getPaginationEl(3).text()).toBe(''+$rootScope.currentPage);
});
it('shows the page number in middle after the prev link is clicked', function() {
updateCurrentPage(7);
clickPaginationEl(0);
expect($rootScope.currentPage).toBe(6);
expect(getPaginationEl(3)).toHaveClass('active');
expect(getPaginationEl(3).text()).toBe(''+$rootScope.currentPage);
});
it('changes pagination bar size when max-size value changed', function() {
$rootScope.maxSize = 7;
$rootScope.$digest();
expect(getPaginationBarSize()).toBe(9);
});
it('sets the pagination bar size to num-pages, if max-size is greater than num-pages ', function() {
$rootScope.maxSize = 15;
$rootScope.$digest();
expect(getPaginationBarSize()).toBe(12);
});
it('should not change value of max-size expression, if max-size is greater than num-pages ', function() {
$rootScope.maxSize = 15;
$rootScope.$digest();
expect($rootScope.maxSize).toBe(15);
});
it('should not display page numbers, if max-size is zero', function() {
$rootScope.maxSize = 0;
$rootScope.$digest();
expect(getPaginationBarSize()).toBe(2);
expect(getPaginationEl(0).text()).toBe('Previous');
expect(getPaginationEl(-1).text()).toBe('Next');
});
});
describe('with `max-size` option & no `rotate`', function () {
beforeEach(inject(function() {
$rootScope.total = 115; // 12 pages
$rootScope.currentPage = 7;
$rootScope.maxSize = 5;
$rootScope.rotate = false;
element = $compile('<pagination total-items="total" page="currentPage" max-size="maxSize" rotate="rotate"></pagination>')($rootScope);
$rootScope.$digest();
}));
it('contains one ul and maxsize + 4 elements', function() {
expect(element.find('ul').length).toBe(1);
expect(getPaginationBarSize()).toBe($rootScope.maxSize + 4);
expect(getPaginationEl(0).text()).toBe('Previous');
expect(getPaginationEl(1).text()).toBe('...');
expect(getPaginationEl(2).text()).toBe('6');
expect(getPaginationEl(-3).text()).toBe('10');
expect(getPaginationEl(-2).text()).toBe('...');
expect(getPaginationEl(-1).text()).toBe('Next');
});
it('shows only the next ellipsis element on first page set', function() {
updateCurrentPage(3);
expect(getPaginationEl(1).text()).toBe('1');
expect(getPaginationEl(-3).text()).toBe('5');
expect(getPaginationEl(-2).text()).toBe('...');
});
it('shows only the previous ellipsis element on last page set', function() {
updateCurrentPage(12);
expect(getPaginationBarSize()).toBe(5);
expect(getPaginationEl(1).text()).toBe('...');
expect(getPaginationEl(2).text()).toBe('11');
expect(getPaginationEl(-2).text()).toBe('12');
});
it('moves to the previous set when first ellipsis is clicked', function() {
expect(getPaginationEl(1).text()).toBe('...');
clickPaginationEl(1);
expect($rootScope.currentPage).toBe(5);
expect(getPaginationEl(-3)).toHaveClass('active');
});
it('moves to the next set when last ellipsis is clicked', function() {
expect(getPaginationEl(-2).text()).toBe('...');
clickPaginationEl(-2);
expect($rootScope.currentPage).toBe(11);
expect(getPaginationEl(2)).toHaveClass('active');
});
it('should not display page numbers, if max-size is zero', function() {
$rootScope.maxSize = 0;
$rootScope.$digest();
expect(getPaginationBarSize()).toBe(2);
expect(getPaginationEl(0).text()).toBe('Previous');
expect(getPaginationEl(1).text()).toBe('Next');
});
});
describe('pagination directive with `boundary-links`', function () {
beforeEach(inject(function() {
element = $compile('<pagination boundary-links="true" total-items="total" page="currentPage"></pagination>')($rootScope);
$rootScope.$digest();
}));
it('contains one ul and num-pages + 4 li elements', function() {
expect(element.find('ul').length).toBe(1);
expect(getPaginationBarSize()).toBe(9);
expect(getPaginationEl(0).text()).toBe('First');
expect(getPaginationEl(1).text()).toBe('Previous');
expect(getPaginationEl(-2).text()).toBe('Next');
expect(getPaginationEl(-1).text()).toBe('Last');
});
it('has first and last li elements visible', function() {
expect(getPaginationEl(0).css('display')).not.toBe('none');
expect(getPaginationEl(-1).css('display')).not.toBe('none');
});
it('disables the "first" & "previous" link if current page is 1', function() {
updateCurrentPage(1);
expect(getPaginationEl(0)).toHaveClass('disabled');
expect(getPaginationEl(1)).toHaveClass('disabled');
});
it('disables the "last" & "next" link if current page is num-pages', function() {
updateCurrentPage(5);
expect(getPaginationEl(-2)).toHaveClass('disabled');
expect(getPaginationEl(-1)).toHaveClass('disabled');
});
it('changes currentPage if the "first" link is clicked', function() {
clickPaginationEl(0);
expect($rootScope.currentPage).toBe(1);
});
it('changes currentPage if the "last" link is clicked', function() {
clickPaginationEl(-1);
expect($rootScope.currentPage).toBe(5);
});
it('does not change the current page on "first" click if already at first page', function() {
updateCurrentPage(1);
clickPaginationEl(0);
expect($rootScope.currentPage).toBe(1);
});
it('does not change the current page on "last" click if already at last page', function() {
updateCurrentPage(5);
clickPaginationEl(-1);
expect($rootScope.currentPage).toBe(5);
});
it('changes "first" & "last" text from attributes', function() {
element = $compile('<pagination boundary-links="true" first-text="<<<" last-text=">>>" total-items="total" page="currentPage"></pagination>')($rootScope);
$rootScope.$digest();
expect(getPaginationEl(0).text()).toBe('<<<');
expect(getPaginationEl(-1).text()).toBe('>>>');
});
it('changes "previous" & "next" text from attributes', function() {
element = $compile('<pagination boundary-links="true" previous-text="<<" next-text=">>" total-items="total" page="currentPage"></pagination>')($rootScope);
$rootScope.$digest();
expect(getPaginationEl(1).text()).toBe('<<');
expect(getPaginationEl(-2).text()).toBe('>>');
});
it('changes "first" & "last" text from interpolated attributes', function() {
$rootScope.myfirstText = '<<<';
$rootScope.mylastText = '>>>';
element = $compile('<pagination boundary-links="true" first-text="{{myfirstText}}" last-text="{{mylastText}}" total-items="total" page="currentPage"></pagination>')($rootScope);
$rootScope.$digest();
expect(getPaginationEl(0).text()).toBe('<<<');
expect(getPaginationEl(-1).text()).toBe('>>>');
});
it('changes "previous" & "next" text from interpolated attributes', function() {
$rootScope.previousText = '<<';
$rootScope.nextText = '>>';
element = $compile('<pagination boundary-links="true" previous-text="{{previousText}}" next-text="{{nextText}}" total-items="total" page="currentPage"></pagination>')($rootScope);
$rootScope.$digest();
expect(getPaginationEl(1).text()).toBe('<<');
expect(getPaginationEl(-2).text()).toBe('>>');
});
});
describe('pagination directive with just number links', function () {
beforeEach(inject(function() {
element = $compile('<pagination direction-links="false" total-items="total" page="currentPage"></pagination>')($rootScope);
$rootScope.$digest();
}));
it('contains one ul and num-pages li elements', function() {
expect(getPaginationBarSize()).toBe(5);
expect(getPaginationEl(0).text()).toBe('1');
expect(getPaginationEl(-1).text()).toBe('5');
});
it('has the number of the page as text in each page item', function() {
for(var i = 0; i < 5; i++) {
expect(getPaginationEl(i).text()).toEqual(''+(i+1));
}
});
it('sets the current page to be active', function() {
expect(getPaginationEl(2)).toHaveClass('active');
});
it('does not disable the "1" link if current page is 1', function() {
updateCurrentPage(1);
expect(getPaginationEl(0)).not.toHaveClass('disabled');
expect(getPaginationEl(0)).toHaveClass('active');
});
it('does not disable the "last" link if current page is last page', function() {
updateCurrentPage(5);
expect(getPaginationEl(-1)).not.toHaveClass('disabled');
expect(getPaginationEl(-1)).toHaveClass('active');
});
it('changes currentPage if a page link is clicked', function() {
clickPaginationEl(1);
expect($rootScope.currentPage).toBe(2);
});
it('changes the number of items when total items changes', function() {
$rootScope.total = 73; // 8 pages
$rootScope.$digest();
expect(getPaginationBarSize()).toBe(8);
expect(getPaginationEl(0).text()).toBe('1');
expect(getPaginationEl(-1).text()).toBe('8');
});
});
describe('with just boundary & number links', function () {
beforeEach(inject(function() {
$rootScope.directions = false;
element = $compile('<pagination boundary-links="true" direction-links="directions" total-items="total" page="currentPage"></pagination>')($rootScope);
$rootScope.$digest();
}));
it('contains number of pages + 2 li elements', function() {
expect(getPaginationBarSize()).toBe(7);
expect(getPaginationEl(0).text()).toBe('First');
expect(getPaginationEl(1).text()).toBe('1');
expect(getPaginationEl(-2).text()).toBe('5');
expect(getPaginationEl(-1).text()).toBe('Last');
});
it('disables the "first" & activates "1" link if current page is 1', function() {
updateCurrentPage(1);
expect(getPaginationEl(0)).toHaveClass('disabled');
expect(getPaginationEl(1)).not.toHaveClass('disabled');
expect(getPaginationEl(1)).toHaveClass('active');
});
it('disables the "last" & "next" link if current page is num-pages', function() {
updateCurrentPage(5);
expect(getPaginationEl(-2)).toHaveClass('active');
expect(getPaginationEl(-2)).not.toHaveClass('disabled');
expect(getPaginationEl(-1)).toHaveClass('disabled');
});
});
describe('`num-pages`', function () {
beforeEach(inject(function() {
$rootScope.numpg = null;
element = $compile('<pagination total-items="total" page="currentPage" num-pages="numpg"></pagination>')($rootScope);
$rootScope.$digest();
}));
it('equals to total number of pages', function() {
expect($rootScope.numpg).toBe(5);
});
it('changes when total number of pages change', function() {
$rootScope.total = 73; // 8 pages
$rootScope.$digest();
expect($rootScope.numpg).toBe(8);
});
it('shows minimun one page if total items are not defined and does not break binding', function() {
$rootScope.total = undefined;
$rootScope.$digest();
expect($rootScope.numpg).toBe(1);
$rootScope.total = 73; // 8 pages
$rootScope.$digest();
expect($rootScope.numpg).toBe(8);
});
});
describe('setting `paginationConfig`', function() {
var originalConfig = {};
beforeEach(inject(function(paginationConfig) {
angular.extend(originalConfig, paginationConfig);
paginationConfig.itemsPerPage = 5;
paginationConfig.boundaryLinks = true;
paginationConfig.directionLinks = true;
paginationConfig.firstText = 'FI';
paginationConfig.previousText = 'PR';
paginationConfig.nextText = 'NE';
paginationConfig.lastText = 'LA';
element = $compile('<pagination total-items="total" page="currentPage"></pagination>')($rootScope);
$rootScope.$digest();
}));
afterEach(inject(function(paginationConfig) {
// return it to the original stat
angular.extend(paginationConfig, originalConfig);
}));
it('should change paging text', function () {
expect(getPaginationEl(0).text()).toBe('FI');
expect(getPaginationEl(1).text()).toBe('PR');
expect(getPaginationEl(-2).text()).toBe('NE');
expect(getPaginationEl(-1).text()).toBe('LA');
});
it('contains number of pages + 4 li elements', function() {
expect(getPaginationBarSize()).toBe(14);
});
});
describe('override configuration from attributes', function () {
beforeEach(inject(function() {
element = $compile('<pagination boundary-links="true" first-text="<<" previous-text="<" next-text=">" last-text=">>" total-items="total" page="currentPage"></pagination>')($rootScope);
$rootScope.$digest();
}));
it('contains number of pages + 4 li elements', function() {
expect(getPaginationBarSize()).toBe(9);
});
it('should change paging text from attribute', function () {
expect(getPaginationEl(0).text()).toBe('<<');
expect(getPaginationEl(1).text()).toBe('<');
expect(getPaginationEl(-2).text()).toBe('>');
expect(getPaginationEl(-1).text()).toBe('>>');
});
});
});