# encoding: utf-8
require 'spec_helper'

describe "outputs/kafka" do
  let (:kafka_config) {{'topic_id' => 'test'}}

  it "should register" do
    output = LogStash::Plugin.lookup("output", "kafka").new(kafka_config)
    expect {output.register}.to_not raise_error
  end

  it 'should populate kafka config with default values' do
    kafka = LogStash::Outputs::Kafka.new(kafka_config)
    insist {kafka.broker_list} == 'localhost:9092'
    insist {kafka.topic_id} == 'test'
    insist {kafka.compression_codec} == 'none'
    insist {kafka.serializer_class} == 'kafka.serializer.StringEncoder'
    insist {kafka.partitioner_class} == 'kafka.producer.DefaultPartitioner'
    insist {kafka.producer_type} == 'sync'
  end

  it 'should send logstash event to kafka broker' do
    timestamp = LogStash::Timestamp.now
    expect_any_instance_of(Kafka::Producer)
    .to receive(:send_msg)
        .with('test', nil, "{\"message\":\"hello world\",\"host\":\"test\",\"@timestamp\":\"#{timestamp}\",\"@version\":\"1\"}")
    e = LogStash::Event.new({:message => 'hello world', :host => 'test', '@timestamp' => timestamp})
    kafka = LogStash::Outputs::Kafka.new(kafka_config)
    kafka.register
    kafka.receive(e)
  end

end