model test for title

gistfile1.txt

describe 'title' do
  it 'validates presence of title' do
    product = @invalid_product
    product.valid?
    expect(product.errors[:title]).to include("can't be blank")
  end

  it 'validates uniqueness of a title' do
    @valid_product.save
    new_product = @valid_product.dup
    new_product.valid?
    expect(new_product.errors[:title]).to include('has already been taken')
  end
end