[rspec-users] let vs ivar w/ before block

[Patrick J. Collins]

Am I correct in understanding that the point of using let is that it can
minimize database calls due to memoization?

describe "#something" do

  let(:something) = Something.groovy_scope

  it "does x" do
    something.first.x.should have_coolness
  end

  it "does y" do
	 something.first.y.should_not have_coolness
  end
 
end

vs.

describe "#something" do

  before :each do
    @something = Something.groovy_scope
  end

  it "does x" do
	 @something.first.x.should_not have_coolness
  end

  it "does y" do
	 @something.first.y.should_not have_coolness
  end
 
end

...

Is that the proper usage?

Patrick J. Collins
http://collinatorstudios.com