require "rails_helper"

RSpec.describe User do
  it "has a valid factory" do
    expect(build(:user)).to be_valid
  end

  it "requires a name and email" do
    user = build(:user, name: nil, email: nil)

    expect(user).not_to be_valid
    expect(user.errors[:name]).to be_present
    expect(user.errors[:email]).to be_present
  end

  it "requires email to be unique case-insensitively" do
    create(:user, email: "driver@example.com")

    user = build(:user, email: "DRIVER@example.com")

    expect(user).not_to be_valid
    expect(user.errors[:email]).to be_present
  end

  it "cannot be destroyed when entries reference it" do
    user = create(:user)
    create(:fuel_entry, updated_by_user: user)

    expect(user.destroy).to be(false)
    expect(user.errors[:base]).to be_present
  end
end