shared_examples "a successful request_password_request" do
  it_behaves_like "a successful JSON POST request"

  it "returns empty json body" do
    expect(subject.body).to eq '{}'
  end
end

describe 'reset your password endpoint' do
  include Rack::Test::Methods
  include_context 'format: json'

  describe "request a password reset" do
    let(:url) { 'v1/users/password' }
    let(:user) { create(:user) }

    subject { post url, params }

    context "with valid params" do
      let(:params) { { user: { email: user.email } } }

      it_behaves_like "a successful request_password_request"

      it "sends reset instructions to a user" do
        expect{ subject }.to change(ActionMailer::Base.deliveries, :count).by(1)
      end
    end

    context "there is no such user" do
      let(:params) { { user: { email: 'non_existent' } } }

      it_behaves_like "a successful request_password_request"

      it "doesn't send any email" do
        expect{ subject }.to change(ActionMailer::Base.deliveries, :count).by(0)
      end
    end
  end
end