refactor tests for more points

activesupport/test/callbacks_test.rb

@@ -808,6 +808,7 @@ def build_class(callback, n = 10)
         include ActiveSupport::Callbacks
         define_callbacks :foo
         n.times { set_callback :foo, callback }
+        def run; run_callbacks :foo; end
       }
     end
 
@@ -816,13 +817,13 @@ def test_class
       callback = Class.new {
         define_singleton_method(:before) { |o| calls << o }
       }
-      build_class(callback).new.run_callbacks :foo
+      build_class(callback).new.run
       assert_equal 10, calls.length
     end
 
     def test_lambda
       calls = []
-      build_class(->(o) { calls << o }).new.run_callbacks :foo
+      build_class(->(o) { calls << o }).new.run
       assert_equal 10, calls.length
     end
 
@@ -830,7 +831,7 @@ def test_symbol
       calls = []
       klass = build_class(:bar)
       klass.class_eval { define_method(:bar) { calls << klass } }
-      klass.new.run_callbacks :foo
+      klass.new.run
       assert_equal 1, calls.length
     end
 
@@ -838,7 +839,7 @@ def test_string
       calls = []
       klass = build_class("bar")
       klass.class_eval { define_method(:bar) { calls << klass } }
-      klass.new.run_callbacks :foo
+      klass.new.run
       assert_equal 1, calls.length
     end
   end