campfire_notifier_test.rb

require 'test_helper'

# silence_warnings trick around require can be removed once
# https://github.com/collectiveidea/tinder/pull/77
# gets merged and released
silence_warnings do
  require 'tinder'
end

class CampfireNotifierTest < ActiveSupport::TestCase
  test 'should send campfire notification if properly configured' do
    ExceptionNotifier::CampfireNotifier.stubs(:new).returns(Object.new)
    campfire = ExceptionNotifier::CampfireNotifier.new(subdomain: 'test', token: 'test_token', room_name: 'test_room')
    campfire.stubs(:call).returns(fake_notification)
    notif = campfire.call(fake_exception)

    assert !notif[:message].empty?
    assert_equal notif[:message][:type], 'PasteMessage'
    assert_includes notif[:message][:body], 'A new exception occurred:'
    assert_includes notif[:message][:body], 'divided by 0'
    assert_includes notif[:message][:body], '/exception_notification/test/campfire_test.rb:45'
  end

  test 'should send campfire notification without backtrace info if properly configured' do
    ExceptionNotifier::CampfireNotifier.stubs(:new).returns(Object.new)
    campfire = ExceptionNotifier::CampfireNotifier.new(subdomain: 'test', token: 'test_token', room_name: 'test_room')
    campfire.stubs(:call).returns(fake_notification_without_backtrace)
    notif = campfire.call(fake_exception_without_backtrace)

    assert !notif[:message].empty?
    assert_equal notif[:message][:type], 'PasteMessage'
    assert_includes notif[:message][:body], 'A new exception occurred:'
    assert_includes notif[:message][:body], 'my custom error'
  end

  test 'should not send campfire notification if badly configured' do
    wrong_params = { subdomain: 'test', token: 'bad_token', room_name: 'test_room' }
    Tinder::Campfire.stubs(:new).with('test', token: 'bad_token').returns(nil)
    campfire = ExceptionNotifier::CampfireNotifier.new(wrong_params)

    assert_nil campfire.room
    assert_nil campfire.call(fake_exception)
  end

  test 'should not send campfire notification if config attr missing' do
    wrong_params = { subdomain: 'test', room_name: 'test_room' }
    Tinder::Campfire.stubs(:new).with('test', {}).returns(nil)
    campfire = ExceptionNotifier::CampfireNotifier.new(wrong_params)

    assert_nil campfire.room
    assert_nil campfire.call(fake_exception)
  end

  test 'should send the new exception message if no :accumulated_errors_count option' do
    campfire = ExceptionNotifier::CampfireNotifier.new({})
    campfire.stubs(:active?).returns(true)
    campfire.expects(:send_notice).with { |_, _, message| message.start_with?('A new exception occurred') }.once
    campfire.call(fake_exception)
  end

  test 'shoud send the exception message if :accumulated_errors_count option greater than 1' do
    campfire = ExceptionNotifier::CampfireNotifier.new({})
    campfire.stubs(:active?).returns(true)
    campfire.expects(:send_notice).with { |_, _, message| message.start_with?('The exception occurred 3 times:') }.once
    campfire.call(fake_exception, accumulated_errors_count: 3)
  end

  test 'should call pre/post_callback if specified' do
    pre_callback_called = 0
    post_callback_called = 0
    Tinder::Campfire.stubs(:new).returns(Object.new)

    campfire = ExceptionNotifier::CampfireNotifier.new(
      subdomain: 'test',
      token: 'test_token',
      room_name: 'test_room',
      pre_callback: proc { |_opts, _notifier, _backtrace, _message, _message_opts|
        pre_callback_called += 1
      },
      post_callback: proc { |_opts, _notifier, _backtrace, _message, _message_opts|
        post_callback_called += 1
      }
    )
    campfire.room = Object.new
    campfire.room.stubs(:paste).returns(fake_notification)
    campfire.call(fake_exception)
    assert_equal(1, pre_callback_called)
    assert_equal(1, post_callback_called)
  end

  private

  def fake_notification
    {
      message: {
        type: 'PasteMessage',
        body: "A new exception occurred: 'divided by 0' on '/Users/sebastian/exception_notification/test/campfire_test.rb:45:in `/'"
      }
    }
  end

  def fake_exception
    5 / 0
  rescue StandardError => e
    e
  end

  def fake_notification_without_backtrace
    {
      message: {
        type: 'PasteMessage',
        body: "A new exception occurred: 'my custom error'"
      }
    }
  end

  def fake_exception_without_backtrace
    StandardError.new('my custom error')
  end
end