View difference between Paste ID: JzS2cM3S and a7kke3VV

 require 'benchmark'
 
 module BenchmarkHelpers
   def benchmark(description, &block)
     # 1. Nope
     #bm_proc = Proc.new do
     #  db = Proc.new { |bm| bm.report(description, &block) }
     #  Benchmark.bm(description.length, &db)
     #end
     it description do
       Benchmark.bm(description.length) do |bm|
         # 2. Nada
         #bm.report description, &block
         bm.report description do
-          # 3. Zilch
+          # 3. Zilch.
-          block.yield
+          #block.call
           #block.yield
           # eval in context of example_group_instance!
           example.example_group_instance.instance_eval(&block)
         end
       end
     end
   end
 end
 
 RSpec.configure do |c|
   c.extend BenchmarkHelpers
 end
 
 describe "scopes" do
   it "succeeds" do
     p self.class
     p be
     true.should == true # success
     true.should be      # success
   end
   benchmark "throws exception on 'be'" do
     p self.class
-rake spec SPEC=spec/benchmark_spec.rb
+    p be
     true.should == true # success
     true.should be      # exception
   end
-                      user     system      total        real
+
-how do they work  how do they work (FAILED - 1)
+
 
-Failures:
+
 
-  1) scopes how do they work
+
-     Failure/Error: true.should be
+RSpec::Core::ExampleGroup::Nested_1
-     NameError:
+#<RSpec::Matchers::Be:0x00000002822740 @args=[]>
-       undefined local variable or method `be' for RSpec::Core::ExampleGroup::Nested_1:Class
+  succeeds
-     # ./spec/benchmark_spec.rb:25:in `block (2 levels) in <top (required)>'
+                              user     system      total        real
-     # ./spec/benchmark_spec.rb:12:in `yield'
+throws exception on 'be'RSpec::Core::ExampleGroup::Nested_1
-     # ./spec/benchmark_spec.rb:12:in `block (3 levels) in benchmark'
+#<RSpec::Matchers::Be:0x0000000281f068 @args=[]>
-     # /home/aaron/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/benchmark.rb:295:in `measure'
+  0.000000   0.000000   0.000000 (  0.000091)
-     # /home/aaron/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/benchmark.rb:382:in `item'
+  throws exception on 'be'
-     # ./spec/benchmark_spec.rb:11:in `block (2 levels) in benchmark'
+
-     # /home/aaron/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/benchmark.rb:178:in `benchmark'
+Finished in 0.0016 seconds
-     # /home/aaron/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/benchmark.rb:208:in `bm'
+2 examples, 0 failures