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// TK COLIN needs a test to verify serverSide - do as part of the Editor tests
describe('core - page.info()', function() {
dt.libs({
js: ['jquery', 'datatables'],
css: ['datatables']
});
function getExpectedPageInfo(pageNumber, pageLength, paging = true) {
pageEnd = pageLength * (pageNumber + 1) > 57 ? 57 : pageLength * (pageNumber + 1);
pageLen = paging ? pageLength : -1;
pageCount = 57 % pageLength ? Math.floor(57 / pageLength) + 1 : Math.floor(57 / pageLength);
return {
page: pageNumber,
pages: pageCount,
start: pageLength * pageNumber,
end: pageEnd,
length: pageLen,
recordsTotal: 57,
recordsDisplay: 57,
serverSide: false
};
}
describe('Check the defaults', function() {
dt.html('basic');
it('Exists and is a function', function() {
expect(typeof $('#example').DataTable().page.info).toBe('function');
});
it('Returns an object instance', function() {
let table = $('#example').DataTable();
expect($.isPlainObject(table.page.info())).toBe(true);
});
});
describe('Check the behaviour with default page length', function() {
dt.html('basic');
it('All good post initialisation', function() {
let table = $('#example').DataTable();
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(0, 10)));
});
dt.html('basic');
it('All good on changing to page 2 and not drawing', function() {
let table = $('#example').DataTable();
table.page(1);
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(1, 10)));
});
dt.html('basic');
it('All good on page 2', function() {
let table = $('#example').DataTable();
table.page(1).draw(false);
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(1, 10)));
});
dt.html('basic');
it('All good on last page', function() {
let table = $('#example').DataTable();
table.page('last').draw(false);
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(5, 10)));
});
});
describe('Check the behaviour with custom page length', function() {
dt.html('basic');
it('All good post initialisation', function() {
let table = $('#example').DataTable({
pageLength: 17
});
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(0, 17)));
});
it('All good on page 2', function() {
let table = $('#example').DataTable();
table.page(1).draw(false);
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(1, 17)));
});
it('All good on last page', function() {
let table = $('#example').DataTable();
table.page('last').draw(false);
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(3, 17)));
});
});
describe('Check the behaviour with paging disabled', function() {
dt.html('basic');
it('All good post initialisation', function() {
let table = $('#example').DataTable({
paging: false
});
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(0, 57, false)));
});
dt.html('basic');
it('Paging disabled by page.len(-1)', function() {
let table = $('#example').DataTable();
table.page.len(-1).draw();
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(0, 57, false)));
});
});
describe('Check the behaviour with Ajax sourced data', function() {
dt.html('basic');
it('All good post initialisation with custom page size', function(done) {
let table = $('#example').DataTable({
ajax: '/base/test/data/data.txt',
deferRender: true,
pageLength: 17,
columns: dt.getTestColumns(),
initComplete: function(settings, json) {
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(0, 17)));
done();
}
});
});
dt.html('basic');
it('All good on page 2 with custom page size', function(done) {
let table = $('#example').DataTable({
ajax: '/base/test/data/data.txt',
deferRender: true,
pageLength: 17,
columns: dt.getTestColumns(),
initComplete: function(settings, json) {
table.page(2).draw(false);
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(2, 17)));
done();
}
});
});
dt.html('basic');
it('All good on page 2 with custom page size', function(done) {
let table = $('#example').DataTable({
ajax: '/base/test/data/data.txt',
deferRender: true,
paging: false,
columns: dt.getTestColumns(),
initComplete: function(settings, json) {
let info = table.page.info();
expect(JSON.stringify(info)).toBe(JSON.stringify(getExpectedPageInfo(0, 57, false)));
done();
}
});
});
describe('Check the behaviour with other stuff', function() {
dt.html('basic');
it('Correct values when doing a search', function() {
let table = $('#example').DataTable();
table.search('Software').draw();
let info = table.page.info();
let expectedInfo = {
page: 0,
pages: 1,
start: 0,
end: 6,
length: 10,
recordsTotal: 57,
recordsDisplay: 6,
serverSide: false
};
expect(JSON.stringify(info)).toBe(JSON.stringify(expectedInfo));
});
});
});
});
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