describe '...' do

  MOCK_GHE_HOST     = 'ghe.example.com'
  MOCK_GHE_PROTOCOL = 'http'
  MOCK_USER         = 'foo'
  MOCK_PASSWORD     = 'bar'

  MOCK_AUTHZ_GHE_URL    = "#{MOCK_GHE_PROTOCOL}://#{MOCK_GHE_HOST}/api/v3/"
  MOCK_GHE_URL          = "#{MOCK_GHE_PROTOCOL}://#{MOCK_GHE_HOST}/api/v3/"
  MOCK_GITHUB_URL       = "https://api.github.com/"
  MOCK_LOGIN_URL        = "https://github.com/"

  before do
    @saved_env = ENV[Gist::URL_ENV_NAME]

    # stub requests for /gists
    stub_request(:post, /#{MOCK_GHE_URL}gists/).to_return(:body => %[{"html_url": "http://#{MOCK_GHE_HOST}"}])
    stub_request(:post, /#{MOCK_GITHUB_URL}gists/).to_return(:body => '{"html_url": "http://github.com/"}')

    # stub requests for /authorizations
    stub_request(:post, /#{MOCK_AUTHZ_GHE_URL}authorizations/).
      to_return(:status => 201, :body => '{"token": "asdf"}')
    stub_request(:post, /#{MOCK_GITHUB_URL}authorizations/).
      with(headers: {'Authorization'=>'Basic Zm9vOmJhcg=='}).
      to_return(:status => 201, :body => '{"token": "asdf"}')

    stub_request(:post, /#{MOCK_LOGIN_URL}login\/device\/code/).
      to_return(:status => 200, :body => '{"interval": "0.1", "user_code":"XXXX-XXXX", "device_code": "xxxx", "verification_uri": "https://github.com/login/device"}')

    stub_request(:post, /#{MOCK_LOGIN_URL}login\/oauth\/access_token/).
      to_return(:status => 200, :body => '{"access_token":"zzzz"}')
  end

  after do
    ENV[Gist::URL_ENV_NAME] = @saved_env
  end

  describe :login! do
    before do
      @saved_stdin = $stdin

      # stdin emulation
      $stdin = StringIO.new "#{MOCK_USER}\n#{MOCK_PASSWORD}\n"

      # intercept for updating ~/.gist
      File.stub(:open)
    end

    after do
      $stdin = @saved_stdin
    end

    it "should access to api.github.com when $#{Gist::URL_ENV_NAME} wasn't set" do
      ENV.delete Gist::URL_ENV_NAME

      Gist.login!

      assert_requested(:post, /#{MOCK_LOGIN_URL}login\/oauth\/access_token/)
    end

    it "should access to #{MOCK_GHE_HOST} when $#{Gist::URL_ENV_NAME} was set" do
      ENV[Gist::URL_ENV_NAME] = MOCK_GHE_URL

      Gist.login!

      assert_requested(:post, /#{MOCK_AUTHZ_GHE_URL}authorizations/)
    end

    context "when credentials are passed in" do

      it "uses them" do
        $stdin = StringIO.new "#{MOCK_USER}_wrong\n#{MOCK_PASSWORD}_wrong\n"
        Gist.login! :username => MOCK_USER, :password => MOCK_PASSWORD

        assert_requested(:post, /#{MOCK_GITHUB_URL}authorizations/)
      end

    end
  end

  describe :gist do
    it "should access to api.github.com when $#{Gist::URL_ENV_NAME} wasn't set" do
      ENV.delete Gist::URL_ENV_NAME

      Gist.gist "test gist"

      assert_requested(:post, /#{MOCK_GITHUB_URL}gists/)
    end

    it "should access to #{MOCK_GHE_HOST} when $#{Gist::URL_ENV_NAME} was set" do
      ENV[Gist::URL_ENV_NAME] = MOCK_GHE_URL

      Gist.gist "test gist"

      assert_requested(:post, /#{MOCK_GHE_URL}gists/)
    end
  end
end