stub on the model itself, not a global

Author: bquorning

lib/rspec/active_model/mocks/mocks.rb

@@ -135,16 +135,15 @@ def self.param_delimiter; "-"; end
                 :blank? => false }.merge(stubs)
 
       double("#{model_class.name}_#{stubs[:id]}", stubs).tap do |m|
-        mock_store_klass = RSpec::ActiveModel::Mocks::Mocks
         if model_class.method(:===).owner == Module && !stubs.key?(:===)
-          allow(mock_store_klass).to receive(:mock_store) do
-            @mock_store ||= Hash.new { |h, k| h[k] = [] }
+          allow(model_class).to receive(:__rspec_mocks) do
+            @__rspec_mocks ||= []
           end
           allow(model_class).to receive(:===).and_wrap_original do |original, other|
-            mock_store_klass.mock_store[model_class].any? { |ms| ms === other } || original.call(other)
+            model_class.__rspec_mocks.include?(other) || original.call(other)
           end
         end
-        mock_store_klass.mock_store[model_class] << m if mock_store_klass.respond_to?(:mock_store)
+        model_class.__rspec_mocks << m if model_class.respond_to?(:__rspec_mocks)
         msingleton = class << m; self; end
         msingleton.class_eval do
           include ActiveModelInstanceMethods