old_contents: describe(`Notes List`, function() {
  
    it(`can render custom heading levels`, function() {
      cy.visit(`http://localhost:6006/iframe.html?id=components-notes-list--heading-level`);
      cy.contains(`.notes-list h2`, `Notes`);
    });
  
    it(`adds a note`, function() {
      
      cy.visit(`http://localhost:6006/iframe.html?id=components-notes-list--empty`);
      
      cy.get(`.js-add-note-button`)
      .click();
      
      cy.get(`.notes`)
      .children()
      .should(`have.lengthOf`, 1);
  
      // TODO: Note should be visible.
  
    });
  
  });
  
new_contents: describe(`Notes List`, function() {
  
    it(`can render custom heading levels`, function() {
      cy.visit(`http://localhost:6006/iframe.html?id=components-notes-list--heading-level`);
      cy.contains(`.notes-list h2`, `Notes`);
    });
  
    it(`adds / deletes a note`, function() {
      
      cy.visit(`http://localhost:6006/iframe.html?id=components-notes-list--empty`);
      
      cy.get(`.js-add-note-button`)
      .click();
      
      cy.get(`.notes`)
      .children()
      .should(`have.lengthOf`, 1);
  
      cy.get(`.note .js-delete-button`)
      .click();
  
      cy.get(`.notes`)
      .children()
      .should(`have.lengthOf`, 0);
  
    });
  
  });
  
subject: delete a note