Testing Rake task with Rspec with Rails environment

Question

I'm trying to test a rake task and it uses an active record in it.

require 'spec_helper'
require 'rake'

load File.join(Rails.root, 'lib', 'tasks', 'survey.rake')

describe "survey rake tasks" do
  describe "survey:send_report" do
    it "should send a report" do
      Rake::Task['survey:send_report'].invoke
    end
  end
end

When I run this spec rspec spec/lib/survey_spec.rb, I get this error "

RuntimeError:
   Don't know how to build task 'environment'

How do I load the :enviroment task inside by example spec?

This guide looks like it may help: philsergi.com/2009/02/testing-rake-tasks-with-rspec.html — Sam Peacey
– Sam Peacey, Commented Oct 2, 2012 at 8:02

Erdem Gezer · Accepted Answer · 2013-03-11 23:47:50Z

34

I think you should first load the tasks:

require 'rake'
MyRailsApp::Application.load_tasks

and then invoke your task:

Rake::Task['survey:send_report'].invoke

answered Mar 11, 2013 at 23:47

Erdem Gezer

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3 Comments

Jon Snow Over a year ago

What is MyRailsApp?

Davidslv Over a year ago

@ZackXu that's the name of your application, you can see that in config/application.rb

Mark Kuczmarski Over a year ago

You can do Rails.application.load_tasks

Myron Marston · Accepted Answer · 2012-10-02 14:04:57Z

10

I suspect the problem is that your survey:send_report task depends on :environment but you haven't loaded the file that defines the :environment task. That'll be in rails somewhere, and your main Rakefile loads it.

So, I think if you change

load File.join(Rails.root, 'lib', 'tasks', 'survey.rake')

to

load File.join(Rails.root, 'Rakefile')

it'll work.

answered Oct 2, 2012 at 14:04

Myron Marston

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Comments

Winston Kotzan · Accepted Answer · 2013-09-30 03:34:10Z

10

Sounds like your take task may need the Rails environment to be loaded. You can stub this out by adding this line to your before(:all) hook:

Rake::Task.define_task(:environment)

answered Sep 30, 2013 at 3:34

Winston Kotzan

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Comments

Kryptman · Accepted Answer · 2012-10-02 10:56:03Z

0

Is your task adding the :enviroment to do it before? In your .rake file you should have something like this:

namespace :survey do
# ...

task :send_report => :enviroment do
# ... stuff
end

This is because you need to load the full enviroment to do that task. You can check this railcast to get more information http://railscasts.com/episodes/66-custom-rake-tasks

answered Oct 2, 2012 at 10:56

Kryptman

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