Failing Autorequires test

domain.rb

Puppet::Type.newtype(:domain) do
  @doc = "Manage Glassfish domains"

  ensurable

  ...
  # Autorequire the user running command
  autorequire(:user) do
    self[:user]
  end
end

domain_spec.rb

require 'spec_helper'

describe Puppet::Type.type(:domain) do

...
    describe "autorequire" do
      let :domain do
        described_class.new(
          :domainname   => 'test',
          :user         => 'glassfish',
          :passwordfile => '/tmp/asadmin.pass'
        )
      end

      # Need to include glassfish to get user resource
      let :userprovider do
        Puppet::Type.type(:user).provide(:fake_user_provider) { mk_resource_methods }
      end

      let :user do
        Puppet::Type.type(:user).new(
          :name   => 'glassfish',
          :ensure => 'present'
        )
      end

      let :catalog do
        Puppet::Resource::Catalog.new
      end

      before :each do
        Puppet::Type.type(:user).stubs(:defaultprovider).returns userprovider
        File.expects(:exists?).with('/tmp/asadmin.pass').returns(true).once
        Puppet.features.expects(:root?).returns(true)
      end

      it "should not autorequire a user when no matching user can be found" do
        catalog.add_resource domain
        domain.autorequire.should be_empty
      end

      it "should autorequire a matching user" do
        catalog.add_resource domain
        catalog.add_resource user
        reqs = domain.autorequire
        reqs.size.should == 1
        reqs[0].source.ref.should == user.ref
        reqs[0].target.ref.should == domain.ref
      end
    end
  end
end

failure.log

     should autorequire a matching user (FAILED - 1)

Failures:

  1) Puppet::Type::Domain when validating values autorequire should autorequire a matching user
     Failure/Error: reqs[0].source.must == user
     NoMethodError:
       undefined method `must' for #<Puppet::Type::User:0x7f92f9cfaa38>
     # ./spec/unit/puppet/type/domain_spec.rb:210

Finished in 11.85 seconds
81 examples, 1 failure

Failed examples:

rspec ./spec/unit/puppet/type/domain_spec.rb:205 # Puppet::Type::Domain when validating values autorequire should autorequire a matching user