# frozen_string_literal: true

require "spec_helper"

describe ProxyFetcher::Configuration do
  before { ProxyFetcher.config.reset! }
  after { ProxyFetcher.config.reset! }

  context "custom HTTP client" do
    it "successfully setups if class has all the required methods" do
      class MyHTTPClient
        def self.fetch(url)
          url
        end
      end

      expect { ProxyFetcher.config.http_client = MyHTTPClient }.not_to raise_error
    end

    it "failed on setup if required methods are missing" do
      MyWrongHTTPClient = Class.new

      expect { ProxyFetcher.config.http_client = MyWrongHTTPClient }
        .to raise_error(ProxyFetcher::Exceptions::WrongCustomClass)
    end
  end

  context "custom proxy validator" do
    it "successfully setups if class has all the required methods" do
      class MyProxyValidator
        def self.connectable?(*)
          true
        end
      end

      expect { ProxyFetcher.config.proxy_validator = MyProxyValidator }.not_to raise_error
    end

    it "failed on setup if required methods are missing" do
      MyWrongProxyValidator = Class.new

      expect { ProxyFetcher.config.proxy_validator = MyWrongProxyValidator }
        .to raise_error(ProxyFetcher::Exceptions::WrongCustomClass)
    end
  end

  context "custom provider" do
    it "fails on registration if provider class already registered" do
      expect { ProxyFetcher::Configuration.register_provider(:xroxy, Class.new) }
        .to raise_error(ProxyFetcher::Exceptions::RegisteredProvider)
    end

    it "fails on proxy list fetching if provider doesn't registered" do
      ProxyFetcher.config.provider = :not_existing_provider

      expect { ProxyFetcher::Manager.new }
        .to raise_error(ProxyFetcher::Exceptions::UnknownProvider)
    end
  end

  context "custom HTML parsing adapter" do
    it "fails if adapter can't be installed" do
      old_adapter = ProxyFetcher.config.adapter.dup

      class CustomAdapter < ProxyFetcher::Document::AbstractAdapter
        def self.install_requirements!
          require "not_existing_gem"
        end
      end

      ProxyFetcher.config.adapter = CustomAdapter

      expect { ProxyFetcher.config.adapter_class }
        .to raise_error(ProxyFetcher::Exceptions::AdapterSetupError)

      ProxyFetcher.config.adapter = old_adapter
    end
  end
end