How can I avoid using 'FactoryGirl.reload'

问题:

Having to use FactoryGirl.reload likely to put some overhead on the time it takes to run all tests (when many tests exist) and also it is described as an Anti-Pattern.

How can I keep using the sequencing for unique fields, yet test for the correct values?

You can see in my code that...

• I have to call FactoryGirl.reload so that the increment starts at 1 in case any previous tests have already been run.

• I have to state :count => 1 because there will only ever be one instance of that value.

spec/factories/clients.rb

FactoryGirl.define do
  factory :client do
    name                "Name"
    sequence(:email}    { |n| "email#{n}@example.com" }
    sequence(:username) { |n| "username#{n}" }
  end
end

spec/clients/index.html.erb_spec.rb

require 'spec_helper'

describe "clients/index" do
  before do
    FactoryGirl.reload
    (1..5).each do
      FactoryGirl.create(:client)
    end
    @clients = Client.all
  end

  it "renders a list of clients" do
    render
    # Run the generator again with the --webrat flag if you want to use webrat matchers
    assert_select "tr>td", :text => "Name".to_s, :count => 5
    assert_select "tr>td", :text => "[e-mail]".to_s, :count => 1
    assert_select "tr>td", :text => "username1".to_s, :count => 1
  end
end

回答1:

How about passing in special names for this particular test?

require 'spec_helper'

describe "clients/index" do
  before do
    (1..5).each do |num|
      FactoryGirl.create(:client, username: "special#{num}")
    end
    @clients = Client.all
  end

  it "renders a list of clients" do
    render
    assert_select "tr>td", :text => "special1".to_s, :count => 1
  end
end

回答2:

Adding to mind.blank's answer... If you then wish to test the incremented values, place them inside an incremental loop as well.

  it "renders a list of clients" do
    render
    (1..5).each do |num|
      assert_select "tr>td", :text => "special#{num}".to_s, :count => 1
    end
  end