it('should go to Tab1 Page1', function() {
  element(by.css('#signIn')).click();
});

it('should go to Tab1 Page2', function() {
  element(by.css('#goToTab1Page2')).click();
});

it('should go back to Tab1 Page1', function() {
  element(by.css('#backToTab1Page1')).click();
});

it('should go to Tab2 Page1', function() {
  element(by.css('.tab-button:nth-of-type(2)')).click();
});

it('should go back to Tab1 Page1', function() {
  element(by.css('.tab-button:nth-of-type(1)')).click();
});