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describe( "deferRender option", function() {
var table;
dt.libs( {
js: [ 'jquery', 'datatables' ],
css: [ 'datatables' ]
} );
it( 'Is disabled by default', function () {
expect( $.fn.dataTable.defaults.bDeferRender ).toBe( false );
} );
dt.html( 'empty' );
it( 'Load DataTable', function (done) {
table = $('#example').DataTable( {
ajax: '/base/test/data/data.txt',
deferRender: true,
columns: [
{ data: "name" },
{ data: "position" },
{ data: "office" },
{ data: "extn" },
{ data: "start_date" },
{ data: "salary" }
],
initComplete: function ( settings, json ) {
done();
}
} );
} );
it( 'Only ten rows were created', function () {
expect( table.rows().nodes().count() ).toBe( 10 );
} );
it( 'And only those cells were created', function () {
expect( table.cells().nodes().count() ).toBe( 60 );
} );
it( 'On next page 10 more rows are created', function () {
table.page( 'next' ).draw( false );
expect( table.rows().nodes().count() ).toBe( 20 );
expect( table.cells().nodes().count() ).toBe( 120 );
} );
it( 'Jumping back to first page, no more rows are created', function () {
table.page( 'previous' ).draw( false );
expect( table.rows().nodes().count() ).toBe( 20 );
expect( table.cells().nodes().count() ).toBe( 120 );
} );
it( 'Jumping to last page will not render all rows', function () {
table.page( 'last' ).draw( false );
expect( table.rows().nodes().count() ).toBe( 27 );
expect( table.cells().nodes().count() ).toBe( 162 );
} );
it( 'Jumping back to first page again doesn\'t create more', function () {
table.page( 'first' ).draw( false );
expect( table.rows().nodes().count() ).toBe( 27 );
expect( table.cells().nodes().count() ).toBe( 162 );
} );
it( 'Filtering will create only those required', function () {
table.search( 'm' ).draw();
expect( table.rows().nodes().count() ).toBe( 31 );
expect( table.cells().nodes().count() ).toBe( 186 );
} );
dt.html( 'basic' );
it( 'Has no effect on DOM sourced table', function () {
table = $('#example').DataTable( {
deferRender: true
} );
expect( table.rows().nodes().count() ).toBe( 57 );
expect( table.cells().nodes().count() ).toBe( 342 );
} );
} );
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