Refactoring verify_recaptcha_test

test/verify_recaptcha_test.rb

@@ -29,24 +29,22 @@ def test_should_raise_exception_without_private_key
   end
 
   def test_should_return_false_when_key_is_invalid
-    response = response_with_body("false\ninvalid-site-private-key")
-    Net::HTTP.expects(:post_form).with(@expected_uri, @expected_post_data).returns(response)
+    expect_http_post(response_with_body("false\ninvalid-site-private-key"))
 
     assert !@controller.verify_recaptcha    
     assert_equal "invalid-site-private-key", @controller.session[:recaptcha_error]
   end
 
   def test_returns_true_on_success
     @controller.session[:recaptcha_error] = "previous error that should be cleared"    
-    Net::HTTP.expects(:post_form).with(@expected_uri, @expected_post_data).returns(response_with_body("true\n"))
+    expect_http_post(response_with_body("true\n"))
 
     assert @controller.verify_recaptcha
     assert_nil @controller.session[:recaptcha_error]
   end
 
   def test_errors_should_be_added_to_model
-    response = response_with_body("false\nbad-news")
-    Net::HTTP.expects(:post_form).with(@expected_uri, @expected_post_data).returns(response)
+    expect_http_post(response_with_body("false\nbad-news"))
 
     errors = mock
     errors.expects(:add_to_base).with("Captcha response is incorrect, please try again.")
@@ -70,6 +68,10 @@ def initialize
     end
   end
 
+  def expect_http_post(response)
+    Net::HTTP.expects(:post_form).with(@expected_uri, @expected_post_data).returns(response)
+  end
+
   def response_with_body(body)
     stub(:body => body)
   end