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describe('columns - column().header()', function() {
dt.libs({
js: ['jquery', 'datatables'],
css: ['datatables']
});
function verifyHeader(header, expectedText) {
expect(header instanceof HTMLTableCellElement).toBe(true);
expect(header.nodeName).toBe('TH');
expect(header.textContent).toBe(expectedText);
}
describe('Check the defaults', function() {
dt.html('basic');
it('Exists and is a function', function() {
let table = $('#example').DataTable();
expect(typeof table.column().header).toBe('function');
});
dt.html('basic');
it('Returns a node', function() {
let table = $('#example').DataTable();
expect(table.column().header() instanceof Node).toBe(true);
});
});
describe('Check the behaviour', function() {
dt.html('basic');
it('One row in header: Select first column return header cell', function() {
let table = $('#example').DataTable();
verifyHeader(table.column(0).header(), 'Name');
});
dt.html('basic');
it('One row in header: Select last column return header cell', function() {
let table = $('#example').DataTable();
verifyHeader(table.column(-1).header(), 'Salary');
});
dt.html('two_headers');
it('Two rows in header: Selecting column returns bottom row', function() {
let table = $('#example').DataTable();
verifyHeader(table.column(0).header(), 'Name1');
});
dt.html('two_headers');
it('Two rows in header: Selecting last column returns bottom row', function() {
let table = $('#example').DataTable();
verifyHeader(table.column(-1).header(), 'Salary1');
});
dt.html('two_headers');
it('orderCellsTop: true- Selecting first column returns top row', function() {
let table = $('#example').DataTable({
orderCellsTop: true
});
let returnData = table.column(0).header();
verifyHeader(table.column(0).header(), 'Name');
});
dt.html('two_headers');
it('orderCellsTop: true- Selecting last column returns top row', function() {
let table = $('#example').DataTable({
orderCellsTop: true
});
let returnData = table.column(-1).header();
verifyHeader(table.column(-1).header(), 'Salary');
});
dt.html('basic');
it('Scrolling table with header', function() {
let table = $('#example').DataTable({
scrollY: '200px',
scrollCollapse: true,
paging: false
});
verifyHeader(table.column(0).header(), 'Name');
});
dt.html('basic');
it('Hidden column at initialisation', function() {
let table = $('#example').DataTable({
columnDefs: [
{
targets: [2],
visible: false,
searchable: false
}
]
});
verifyHeader(table.column(2).header(), 'Office');
});
dt.html('basic');
it('Hidden column at initialisation through API', function() {
let table = $('#example').DataTable();
table.column(2).visible(false);
verifyHeader(table.column(2).header(), 'Office');
});
});
});
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