subject { described_class.new(username: "Anything", email: "Anything@test.com",
                                password: "Anything") }
                                

  it "is valid with valid attributes" do
    expect(subject).to be_valid
  end

  it "is not valid without a username" do
    subject.username = nil
    expect(subject).to_not be_valid
  end

  it "is not valid without a email" do
    subject.email = nil
    expect(subject).to_not be_valid
  end

  it "is not valid without a password" do
    subject.password = nil
    expect(subject).to_not be_valid
  end

  context 'when email is not unique' do
    before {described_class.create!(username: "test1", email: "Anything@test.com",
      password: "Anything")}
      it {expect(subject).to_not be_valid}
  end

  context 'when username is not unique' do
    before {described_class.create!(username: "Anything", email: "test1@test.com",
      password: "Anything")}
      it {expect(subject).to_not be_valid}
  end