Rspec，FactoryGirl：FactoryGirl.create in before（：all）不是持久记录？

Question

I'm trying to create a few records for some tests I have for my Image object. However, it seems like they don't persist:

describe Image do
    before(:all) do
      for i in 0..2
        FactoryGirl.create(:image)
      end

      puts Image.count
    end

    it "blah blah blah" do
      puts Image.count
    end

    it "blah blah blah 2" do
      puts Image.count
    end

In the above example, the first call to Image.count returns 3; subsequent calls return 0. The example works when I use before(:each) , however I feel like before(:all) should really be what I want.

Answer 1

You rarely if ever want to use before(:all). You want to use before(:each). before(:all) is run when the context/describe block begins, before(:each) is run before each spec inside it. This is why your are getting 0 for the second and third calls.

There is another important reason that you don't want to use before(:all) which is that you don't want your tests to run together. This means that the examples become bound together, which is an absolute no-no in testing. You should really only ever use before(:all) to set up things that are global collaborators but not the things that you are describing in the examples.

Short Answer: Use before(:each)