Ok, now I understand what is your issue.
class Fooend
class Bar def self.my_foo @my_foo ||= Foo.new end def self.perform
my_foo.do_something endend
describe Foo do
before(:each) do @stupid_mock = double('wtf') Foo.stub(:new =>
@stupid_mock) end it "passes here" do
@stupid_mock.should_receive(:do_something).and_return('value')
Bar.perform end it "fails here" do @stupid_mock.stub(:do_something =>
'value') Bar.perform # double "wtf" received unexpected message
:do_something with (no args) end end
The first time Bar.foo is being called, it caches Foo.new. Since you stubbed
Foo.new to return a mock before running Bar.foo for the first time, this mock
is cached inside Bar, so any subsequent call will return the first created mock
object. This obviously won't happen if you run only the other spec and that is
why it passes in this case.
This is not about passing by reference, but it is about caching Bar.my_foo.
The only way I can think of RSpec not being affected by this is to reloading
all classes before each example, which would be both complicate and costly.
You'll probably have to rethink your testing strategies, avoiding caching class
methods or not mocking something that could affect them, or initializing them
first before running the specs...
Best regards,
Rodrigo.
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