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describe('columns- columns().nodes()', function() {
dt.libs({
js: ['jquery', 'datatables'],
css: ['datatables']
});
function checkNodes(nodes, length) {
expect(nodes.length).toBe(length);
for (let i = 0; i < length; i++) {
expect(nodes[i] instanceof HTMLTableCellElement).toBe(true);
}
}
describe('Check the defaults', function() {
dt.html('basic');
it('Exists and is a function', function() {
let table = $('#example').DataTable();
expect(typeof table.columns().nodes).toBe('function');
});
dt.html('basic');
it('Returns an API instance', function() {
let table = $('#example').DataTable();
expect(table.columns().nodes() instanceof $.fn.dataTable.Api).toBe(true);
});
});
describe('Check the behaviour', function() {
dt.html('basic');
it('Returned single column', function() {
let table = $('#example').DataTable();
checkNodes(table.columns(1).nodes()[0], 57);
});
dt.html('basic');
it('Returned data contains 2d array', function() {
let table = $('#example').DataTable();
let nodes = table.columns([1, 2]).nodes();
checkNodes(nodes[0], 57);
checkNodes(nodes[1], 57);
});
dt.html('basic');
it('Returned data is for the correct column', function() {
let table = $('#example').DataTable();
let nodes = table.columns([0, 1]).nodes();
expect(nodes[0][2].textContent).toBe('Ashton Cox');
expect(nodes[1][2].textContent).toBe('Junior Technical Author');
});
});
});
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