Stub methods on any instance of a class in Rspec 1 and Rspec 2
RSpec 1 (Rails 2)
With the most recent spec_candy.rb helpers you can say:
User.stub_any_instance(:foo => :bar)
user = User.new
user.foo
# => :bar
RSpec 2 (Rails 3)
RSpec 2 comes with this feature built in:
User.any_instance.stub(:foo => :bar)
user = User.new
user.foo
# => :bar
RSpec 3
RSpec Mocks 3.3: any_instance Show archive.org snapshot
allow_any_instance_of(User).to receive(:foo).and_return(:bar)
user = User.new
user.foo
# => :bar
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