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describe('lengthMenu Option', function() {
dt.libs({
js: ['jquery', 'datatables'],
css: ['datatables']
});
function checkText(options, expected) {
expect(options.length).toBe(expected.length);
for (let i = 0; i < options.length; i++) {
expect(options.eq(i).text()).toBe(expected[i]);
}
}
function checkValue(options, expected) {
expect(options.length).toBe(expected.length);
for (let i = 0; i < options.length; i++) {
expect(options.get(i).value).toBe(expected[i]);
}
}
describe('Check the defaults', function() {
dt.html('basic');
it('Check default values', function() {
$('#example').dataTable();
let options = $('select option');
checkText(options, ['10', '25', '50', '100']);
checkValue(options, ['10', '25', '50', '100']);
});
dt.html('basic');
it('Setting to non-default values', function() {
$('#example').dataTable({
lengthMenu: [15, 30, 45, 60]
});
let options = $('select option');
checkText(options, ['15', '30', '45', '60']);
checkValue(options, ['15', '30', '45', '60']);
});
dt.html('basic');
it('Change length', function() {
$('#example').dataTable({
lengthMenu: [1, 10, 15]
});
let options = $('select option');
checkText(options, ['1', '10', '15']);
checkValue(options, ['1', '10', '15']);
});
dt.html('basic');
it('Use different language strings', function() {
$('#example').dataTable({
lengthMenu: [[10, 25, 50, -1], [10, 25, 50, 'All']]
});
let options = $('select option');
checkText(options, ['10', '25', '50', 'All']);
checkValue(options, ['10', '25', '50', '-1']);
});
dt.html('basic');
it('Large numbers are formatted for thousands', function() {
$('#example').dataTable({
lengthMenu: [[10, 25, 50, 10000, -1], [10, 25, 50, 10000, 'All']]
});
let options = $('select option');
checkText(options, ['10', '25', '50', '10,000', 'All']);
checkValue(options, ['10', '25', '50', '10000', '-1']);
});
});
describe('Integration style tests', function() {
dt.html('basic');
it('Pagelength set to first size', function() {
let table = $('#example').DataTable({
lengthMenu: [15, 30, 45, 60]
});
expect(table.page.info().length).toBe(15);
});
dt.html('basic');
it('Pagelength not set to first size if pageLength set', function() {
let table = $('#example').DataTable({
lengthMenu: [15, 30, 45, 60],
pageLength: 12
});
expect(table.page.info().length).toBe(12);
});
dt.html('basic');
it('Server-side processing', function(done) {
let table = $('#example').DataTable({
processing: true,
serverSide: true,
lengthMenu: [15, 30, 45, 60],
ajax: dt.serverSide,
initComplete: function(setting, json) {
expect(table.page.info().length).toBe(15);
done();
}
});
});
});
});
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