# frozen_string_literal: true

RSpec.describe TTY::Config, '#autoload_env' do
  it "autoloads env variables" do
    allow(ENV).to receive(:[]).with('HOST').and_return('localhost')
    config = TTY::Config.new
    expect(config.fetch(:host)).to eq(nil)

    config.autoload_env

    expect(config.fetch(:host)).to eq('localhost')
  end

  it "autoloads env variables with prefix" do
    allow(ENV).to receive(:[]).with('MYTOOL_HOST').and_return('localhost')
    config = TTY::Config.new
    config.env_prefix = 'mytool'

    expect(config.fetch(:host)).to eq(nil)

    config.autoload_env

    expect(config.fetch(:host)).to eq('localhost')
  end

  it "prioritises set over env vars" do
    allow(ENV).to receive(:[]).with('HOST').and_return('localhost')
    config = TTY::Config.new
    config.autoload_env

    config.set(:host, value: 'myhost')

    expect(config.fetch(:host)).to eq('myhost')
  end

  it "prioritises env vars over defaults when a keyword" do
    allow(ENV).to receive(:[]).with('PORT').and_return('7727')
    config = TTY::Config.new

    config.autoload_env

    expect(config.fetch(:port, default: '3000')).to eq('7727')
  end

  it "prioritises env vars over defaults when block" do
    allow(ENV).to receive(:[]).with('PORT').and_return('7727')
    config = TTY::Config.new

    config.autoload_env

    expect(config.fetch(:port) {'3000' }).to eq('7727')
  end

  it "prioritises present configuration over env vars" do
    allow(ENV).to receive(:[]).with('PORT').and_return('7727')
    config = TTY::Config.new(port: '3000')

    config.autoload_env

    expect(config.fetch(:port)).to eq('3000')
  end
end