Merge pull request #398 from rspec/any_instance-combine-features

Combine 'any instance' cukes

features/message_expectations/any_instance.feature

@@ -1,11 +1,33 @@
 Feature: expect a message on any instance of a class
 
-  Use `any_instance.should_receive` to set an expectation that one (and only
-  one) instance of a class receives a message before the example is completed.
+  Use `expect_any_instance_of(Class).to receive` to set an expectation that one
+  (and only one) instance of a class receives a message before the example is
+  completed.
 
-  The spec will fail if no instance receives a message.
+  The example will fail if no instance receives the specified message.
 
   Scenario: expect a message on any instance of a class
+    Given a file named "example_spec.rb" with:
+    """ruby
+      describe "expect_any_instance_of" do
+        before do
+          expect_any_instance_of(Object).to receive(:foo).and_return(:return_value)
+        end
+
+        it "verifies that one instance of the class receives the message" do
+          o = Object.new
+          expect(o.foo).to eq(:return_value)
+        end
+
+        it "fails unless an instance receives that message" do
+        end
+      end
+      """
+    When I run `rspec example_spec.rb`
+    Then the output should contain "2 examples, 1 failure"
+    And the output should contain "1) expect_any_instance_of fails unless an instance receives that message"
+
+  Scenario: expect a message on any instance of a class (should syntax)
     Given a file named "example_spec.rb" with:
       """ruby
       describe "any_instance.should_receive" do
@@ -18,4 +40,4 @@ Feature: expect a message on any instance of a class
       end
       """
     When I run `rspec example_spec.rb`
-    Then the examples should all pass
+    Then the examples should all pass