heartbeat_spec.rb

require 'spec_helper'
require 'goliath/rack/heartbeat'
require 'goliath/env'

describe Goliath::Rack::Heartbeat do
  it 'accepts an app' do
    lambda { Goliath::Rack::Heartbeat.new('my app') }.should_not raise_error
  end

  describe 'with the middleware' do
    before(:each) do
      @app = mock('app').as_null_object
      @env = Goliath::Env.new
      @env['status'] = mock('status').as_null_object
      @hb = Goliath::Rack::Heartbeat.new(@app)
    end

    it 'allows /status as a path prefix' do
      @app.should_receive(:call)
      @env['PATH_INFO'] = '/status_endpoint'
      @hb.call(@env)
    end

    it "doesn't call the app when request /status" do
      @app.should_not_receive(:call)
      @env['PATH_INFO'] = '/status'
      @hb.call(@env)
    end

    it 'returns the status, headers and body from the app on non-/status' do
      @env['PATH_INFO'] = '/v1'
      @app.should_receive(:call).and_return([200, {'a' => 'b'}, {'c' => 'd'}])
      status, headers, body = @hb.call(@env)
      status.should == 200
      headers.should == {'a' => 'b'}
      body.should == {'c' => 'd'}
    end

    it 'returns the correct status, headers and body on /status' do
      @env['PATH_INFO'] = '/status'
      status, headers, body = @hb.call(@env)
      status.should == 200
      headers.should == {}
      body.should == 'OK'
    end
  end
end