How to verify column count using protractor

Question

I need to verify the column count of a table based off of the security role of the logged in user. How can I verify that in some instances 5 columns are displayed but in other instances 4 or 3?

The columns all use a unique "ng-class="{ 'sortable': sortable }"

Answer 1

Generally speaking, .count() should do the job:

var columns = $$(".sortable");
expect(columns.count()).toEqual(5);

If some of the columns are visible or not, you can filter the visible columns only:

var columns = $$(".sortable").filter(function (column) {
    return column.isDisplayed().then(function (isDisplayed) {
        return isDisplayed;
    });
}); 
expect(columns.count()).toEqual(5);