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# frozen_string_literal: true
module NextInstanceOf
def expect_next_instance_of(klass, *new_args)
stub_new(expect(klass), *new_args) do |expectation|
yield(expectation)
end
end
def allow_next_instance_of(klass, *new_args)
stub_new(allow(klass), *new_args) do |allowance|
yield(allowance)
end
end
private
def stub_new(target, *new_args)
receive_new = receive(:new)
receive_new.with(*new_args) if new_args.any?
target.to receive_new.and_wrap_original do |method, *original_args|
method.call(*original_args).tap do |instance|
yield(instance)
end
end
end
end
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