edx-platform/common/static/js/spec/accessibility_tools_spec.js

describe('Tests for accessibility_tools.js', function() {
    describe('Tests for accessible modals', function() {
        var pressTabOnLastElt = function(firstElt, lastElt) {
            firstElt.focus();
        };

        var pressShiftTabOnFirstElt = function(firstElt, lastElt) {
            lastElt.focus();
        };

        var pressEsc = function(closeModal) {
            closeModal.click();
        };

        beforeEach(function() {
            var $focusedElementBeforeModal;
            loadFixtures('js/fixtures/dashboard-fixture.html');
            accessible_modal('#trigger', '#close-modal', '#modalId', '#mainPageId');
            $('#trigger').click();
        });

        it('sets focusedElementBeforeModal to trigger', function() {
            expect($focusedElementBeforeModal).toHaveAttr('id', 'trigger');
        });

        it('sets main page aria-hidden attr to true', function() {
            expect($('#mainPageId')).toHaveAttr('aria-hidden', 'true');
        });

        it('sets modal aria-hidden attr to false', function() {
            expect($('#modalId')).toHaveAttr('aria-hidden', 'false');
        });

        it("sets the close-modal button's tab index to 1", function() {
            expect($('#close-modal')).toHaveAttr('tabindex', '1');
        });

        it("sets the focussable elements' tab indices to 2", function() {
            expect($('#text-input')).toHaveAttr('tabindex', '2');
            expect($('#submit')).toHaveAttr('tabindex', '2');
        });

        // for some reason, toBeFocused tests don't pass with js-test-tool
        // (they do when run locally on browsers), so we're skipping them temporarily
        xit('shifts focus to close-modal button', function() {
            expect($('#close-modal')).toBeFocused();
        });

        // for some reason, toBeFocused tests don't pass with js-test-tool
        // (they do when run locally on browsers), so we're skipping them temporarily
        xit('tab on last element in modal returns to the close-modal button', function() {
            $('#submit').focus();
            pressTabOnLastElt($('#close-modal'), $('#submit'));
            expect($('#close-modal')).toBeFocused();
        });

        // for some reason, toBeFocused tests don't pass with js-test-tool
        // (they do when run locally on browsers), so we're skipping them temporarily
        xit('shift-tab on close-modal element in modal returns to the last element in modal', function() {
            $('#close-modal').focus();
            pressShiftTabOnFirstElt($('#close-modal'), $('#submit'));
            expect($('#submit')).toBeFocused();
        });

        it("pressing ESC calls 'click' on close-modal element", function() {
            var clicked = false;
            $('#close-modal').click(function(theEvent) {
                clicked = true;
            });
            pressEsc($('#close-modal'));
            expect(clicked).toBe(true);
        });

        describe('When modal is closed', function() {
            beforeEach(function() {
                $('#close-modal').click();
            });

            it('sets main page aria-hidden attr to false', function() {
                expect($('#mainPageId')).toHaveAttr('aria-hidden', 'false');
            });

            it('sets modal aria-hidden attr to true', function() {
                expect($('#modalId')).toHaveAttr('aria-hidden', 'true');
            });

            // for some reason, toBeFocused tests don't pass with js-test-tool
            // (they do when run locally on browsers), so we're skipping them temporarily
            xit('returns focus to focusedElementBeforeModal', function() {
                expect(focusedElementBeforeModal).toBeFocused();
            });
        });
    });

    describe('Tests for SR region', function() {
        var getSRText = function() {
            return $('#reader-feedback').html();
        };

        beforeEach(function() {
            loadFixtures('js/fixtures/sr-fixture.html');
        });

        it('has the sr class and is aria-live', function() {
            var $reader = $('#reader-feedback');
            expect($reader.hasClass('sr')).toBe(true);
            expect($reader.attr('aria-live')).toBe('polite');
        });

        it('supports the setting of simple text', function() {
            window.SR.readText('Simple Text');
            expect(getSRText()).toContain('<p>Simple Text</p>');
        });

        it('supports the setting of an array of text', function() {
            window.SR.readTexts(['One', 'Two']);
            expect(getSRText()).toContain('<p>One</p>\n<p>Two</p>');
        });

        it('supports setting an array of elements', function() {
            window.SR.readElts($('.status'));
            expect(getSRText()).toContain(
                '<p>Yes!<span>Your answer is correct!</span></p>\n<p>No!<span>Your answer is wrong!</span></p>'
            );
        });
    });
});