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ba0249c5 by Adam Heath
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CLose to full test coverage.

1 parent 9542d73d
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Showing 2 changed files with 216 additions and 6 deletions
......@@ -2,12 +2,18 @@ define(function(require) {
'use strict';
var Backbone = require('backbone');
function stepFalse(e) {
function preventDefault(e) {
if (e) {
e.preventDefault();
}
}
function stepFalse(e) {
preventDefault(e);
return false;
}
var Pagination = Backbone.Model.extend({
defaults: {
defaults: function defaults() {
return {
currentPage: 1,
hasNext: false,
hasNextJumpPage: false,
......@@ -22,6 +28,7 @@ define(function(require) {
previousPage: undefined,
totalCount: 0,
totalPages: 0,
};
},
initialize: function(data, options) {
var buildPages = function buildPages() {
......@@ -55,8 +62,8 @@ define(function(require) {
startAt = 1;
}
if (endAt - startAt < 9) {
/* global console:false */
console.log('foo');
///* global console:false */
//console.log('foo');
}
for (var i = startAt; i < endAt; i++) {
......@@ -90,6 +97,21 @@ define(function(require) {
totalPages: totalPages,
});
};
this.on('change:pageSize change:currentPage change:totalCount', function() {
var currentPage = parseInt(this.get('currentPage'));
var pageSize = parseInt(this.get('pageSize'));
var totalCount = parseInt(this.get('totalCount'));
if (!currentPage || !pageSize || !totalCount) {
return;
}
var pages = [];
var totalPages = Math.floor((totalCount + pageSize - 1) / pageSize);
if (currentPage < 0) {
this.set('currentPage', 1);
} else if (currentPage > totalPages) {
this.set('currentPage', totalPages);
}
}, this);
this.on('change:pageSize change:currentPage change:totalCount', buildPages, this);
var installActions = _.bind(function installActions(eventName, nextName, hasNextName, previousName, hasPreviousName, pageCount) {
this.on(eventName, function() {
......@@ -98,7 +120,7 @@ define(function(require) {
var next, previous;
if (hasNext) {
next = _.bind(function(e) {
e.preventDefault();
preventDefault(e);
this.set('currentPage', this.get('currentPage') + pageCount);
return false;
}, this);
......@@ -107,7 +129,7 @@ define(function(require) {
}
if (hasPrevious) {
previous = _.bind(function(e) {
e.preventDefault();
preventDefault(e);
this.set('currentPage', this.get('currentPage') - pageCount);
return false;
}, this);
......
define(function(require) {
'use strict';
var _ = require('underscore');
var Backbone = require('backbone');
var Pagination = require('solr/model/Pagination');
describe('Pagination', function() {
it('loads', function() {
expect(Pagination).toBeDefined();
});
describe(':pages', function() {
it('default value is not shared globally', function() {
var p1 = new Pagination(), p2 = new Pagination();
expect(p1.get('pages')).not.toBe(p2.get('pages'));
});
});
describe('singleton', function() {
var p;
function checkHas(hasNext, hasNextJump, hasNextJumpPage, hasPrevious, hasPreviousJump, hasPreviousJumpPage) {
var wanted = {
hasNext: hasNext,
hasNextJump: hasNextJump,
hasNextJumpPage: hasNextJumpPage,
hasPrevious: hasPrevious,
hasPreviousJump: hasPreviousJump,
hasPreviousJumpPage: hasPreviousJumpPage,
};
it('has', function() {
var got = {
hasNext: p.get('hasNext'),
hasNextJump: p.get('hasNextJump'),
hasNextJumpPage: p.get('hasNextJumpPage'),
hasPrevious: p.get('hasPrevious'),
hasPreviousJump: p.get('hasPreviousJump'),
hasPreviousJumpPage: p.get('hasPreviousJumpPage'),
};
expect(got).toEqual(wanted);
});
}
function checkPages(wantedLength, offset, currentPage) {
var pages;
beforeEach(function() {
pages = p.get('pages');
});
//console.log(JSON.stringify(pages));
var wanted = { length: wantedLength, pages: [] };
for (var i = 0; i < wantedLength; i++) {
wanted.pages[i] = { current: i + 1 === currentPage, number: i + 1 + offset };
}
it('pages', function() {
pages = p.get('pages');
var got = { length: pages.length, pages: [] };
for (var i = 0; i < pages.length; i++) {
var page = pages[i];
got.pages[i] = { current: page.current, number: page.number };
}
expect(got).toEqual(wanted);
});
}
beforeEach(function() {
p = new Pagination();
});
describe('default settings', function() {
checkHas(false, undefined, false, false, undefined, false);
checkPages(0, 0, 1);
});
describe('35 items', function() {
beforeEach(function() {
p.set({totalCount:35});
});
describe('initial settings', function() {
checkHas(true, false, false, false, false, false);
checkPages(4, 0, 1);
});
describe('clamping', function() {
describe('set currentPage=5', function() {
beforeEach(function() {
p.set({currentPage: 5});
});
checkHas(false, false, false, true, false, false);
checkPages(4, 0, 4);
});
describe('set currentPage=-1', function() {
beforeEach(function() {
p.set({currentPage: -1});
});
checkHas(true, false, false, false, false, false);
checkPages(4, 0, 1);
});
});
describe('next[1]', function() {
beforeEach(function() {
p.next();
});
checkPages(4, 0, 2);
describe('previous', function() {
beforeEach(function() {
p.previous();
});
checkHas(true, false, false, false, false, false);
checkPages(4, 0, 1);
});
describe('next[2]', function() {
beforeEach(function() {
p.next();
p.next();
});
checkHas(false, false, false, true, false, false);
checkPages(4, 0, 4);
describe('next[1] - clamp', function() {
beforeEach(function() {
p.next();
});
checkHas(false, false, false, true, false, false);
checkPages(4, 0, 4);
});
describe('page[0].jump', function() {
beforeEach(function() {
p.get('pages')[0].jump();
});
checkHas(true, false, false, false, false, false);
checkPages(4, 0, 1);
});
describe('page[3].jump', function() {
beforeEach(function() {
p.get('pages')[3].jump();
});
checkHas(false, false, false, true, false, false);
checkPages(4, 0, 4);
});
describe('decrease to 25 items', function() {
beforeEach(function() {
p.set({totalCount:25});
});
checkHas(false, false, false, true, false, false);
checkPages(3, 0, 3);
describe('increase to 150 items', function() {
beforeEach(function() {
p.set({totalCount:150});
});
checkHas(true, true, false, true, false, false);
checkPages(9, 0, 3);
});
});
});
});
describe('previous[1]', function() {
beforeEach(function() {
p.previous();
});
checkHas(true, false, false, false, false, false);
checkPages(4, 0, 1);
});
});
describe('150 items', function() {
beforeEach(function() {
p.set({totalCount:150});
});
checkHas(true, true, false, false, false, false);
checkPages(9, 0, 1);
describe('page[7].jump', function() {
beforeEach(function() {
p.get('pages')[7].jump();
});
checkHas(true, true, false, true, true, false);
checkPages(9, 3, 5);
describe('previousJump', function() {
beforeEach(function() {
p.previousJump();
});
checkHas(true, true, false, true, false, false);
checkPages(9, 0, 3);
});
});
});
describe('no page jump', function() {
beforeEach(function() {
p.set({pageJump: false});
p.set({totalCount:150});
});
checkHas(true, false, false, false, false, false);
checkPages(9, 0, 1);
});
});
});
});