move "check for ruby-prof" from AD/testing/performance_test to AS/testing/performance, where it is actually required

1 files changed, 310 insertions, 308 deletions

diff --git a/activesupport/lib/active_support/testing/performance.rb b/activesupport/lib/active_support/testing/performance.rb
index 42b58c4f25..9e46e5963e 100644
--- a/activesupport/lib/active_support/testing/performance.rb
+++ b/activesupport/lib/active_support/testing/performance.rb
@@ -1,425 +1,427 @@
+require 'fileutils'
+require 'rails/version'
+require 'active_support/core_ext/class/delegating_attributes'
+require 'active_support/core_ext/string/inflections'
+
 begin
   require 'ruby-prof'
+rescue LoadError
+  $stderr.puts "Specify ruby-prof as application's dependency in Gemfile to run benchmarks."
+  exit
+end
 
-  require 'fileutils'
-  require 'rails/version'
-  require 'active_support/core_ext/class/delegating_attributes'
-  require 'active_support/core_ext/string/inflections'
-
-  module ActiveSupport
-    module Testing
-      module Performance
-        DEFAULTS =
-          if benchmark = ARGV.include?('--benchmark')  # HAX for rake test
-            { :benchmark => true,
-              :runs => 4,
-              :metrics => [:wall_time, :memory, :objects, :gc_runs, :gc_time],
-              :output => 'tmp/performance' }
-          else
-            { :benchmark => false,
-              :runs => 1,
-              :min_percent => 0.01,
-              :metrics => [:process_time, :memory, :objects],
-              :formats => [:flat, :graph_html, :call_tree],
-              :output => 'tmp/performance' }
-          end.freeze
-
-        def self.included(base)
-          base.superclass_delegating_accessor :profile_options
-          base.profile_options = DEFAULTS
-        end
+module ActiveSupport
+  module Testing
+    module Performance
+      DEFAULTS =
+        if benchmark = ARGV.include?('--benchmark')  # HAX for rake test
+          { :benchmark => true,
+            :runs => 4,
+            :metrics => [:wall_time, :memory, :objects, :gc_runs, :gc_time],
+            :output => 'tmp/performance' }
+        else
+          { :benchmark => false,
+            :runs => 1,
+            :min_percent => 0.01,
+            :metrics => [:process_time, :memory, :objects],
+            :formats => [:flat, :graph_html, :call_tree],
+            :output => 'tmp/performance' }
+        end.freeze
+
+      def self.included(base)
+        base.superclass_delegating_accessor :profile_options
+        base.profile_options = DEFAULTS
+      end
 
-        def full_test_name
-          "#{self.class.name}##{method_name}"
-        end
+      def full_test_name
+        "#{self.class.name}##{method_name}"
+      end
 
-        def run(result)
-          return if method_name =~ /^default_test$/
+      def run(result)
+        return if method_name =~ /^default_test$/
 
-          yield(self.class::STARTED, name)
-          @_result = result
+        yield(self.class::STARTED, name)
+        @_result = result
 
-          run_warmup
-          if profile_options && metrics = profile_options[:metrics]
-            metrics.each do |metric_name|
-              if klass = Metrics[metric_name.to_sym]
-                run_profile(klass.new)
-                result.add_run
-              end
+        run_warmup
+        if profile_options && metrics = profile_options[:metrics]
+          metrics.each do |metric_name|
+            if klass = Metrics[metric_name.to_sym]
+              run_profile(klass.new)
+              result.add_run
             end
           end
-
-          yield(self.class::FINISHED, name)
         end
 
-        def run_test(metric, mode)
-          run_callbacks :setup
-          setup
-          metric.send(mode) { __send__ @method_name }
+        yield(self.class::FINISHED, name)
+      end
+
+      def run_test(metric, mode)
+        run_callbacks :setup
+        setup
+        metric.send(mode) { __send__ @method_name }
+      rescue ::Test::Unit::AssertionFailedError => e
+        add_failure(e.message, e.backtrace)
+      rescue StandardError, ScriptError => e
+        add_error(e)
+      ensure
+        begin
+          teardown
+          run_callbacks :teardown, :enumerator => :reverse_each
         rescue ::Test::Unit::AssertionFailedError => e
           add_failure(e.message, e.backtrace)
         rescue StandardError, ScriptError => e
           add_error(e)
-        ensure
-          begin
-            teardown
-            run_callbacks :teardown, :enumerator => :reverse_each
-          rescue ::Test::Unit::AssertionFailedError => e
-            add_failure(e.message, e.backtrace)
-          rescue StandardError, ScriptError => e
-            add_error(e)
-          end
         end
+      end
 
-        protected
-          def run_warmup
-            GC.start
+      protected
+        def run_warmup
+          GC.start
 
-            time = Metrics::Time.new
-            run_test(time, :benchmark)
-            puts "%s (%s warmup)" % [full_test_name, time.format(time.total)]
+          time = Metrics::Time.new
+          run_test(time, :benchmark)
+          puts "%s (%s warmup)" % [full_test_name, time.format(time.total)]
 
-            GC.start
-          end
+          GC.start
+        end
 
-          def run_profile(metric)
-            klass = profile_options[:benchmark] ? Benchmarker : Profiler
-            performer = klass.new(self, metric)
+        def run_profile(metric)
+          klass = profile_options[:benchmark] ? Benchmarker : Profiler
+          performer = klass.new(self, metric)
 
-            performer.run
-            puts performer.report
-            performer.record
-          end
+          performer.run
+          puts performer.report
+          performer.record
+        end
 
-        class Performer
-          delegate :run_test, :profile_options, :full_test_name, :to => :@harness
+      class Performer
+        delegate :run_test, :profile_options, :full_test_name, :to => :@harness
 
-          def initialize(harness, metric)
-            @harness, @metric = harness, metric
-          end
+        def initialize(harness, metric)
+          @harness, @metric = harness, metric
+        end
 
-          def report
-            rate = @total / profile_options[:runs]
-            '%20s: %s' % [@metric.name, @metric.format(rate)]
+        def report
+          rate = @total / profile_options[:runs]
+          '%20s: %s' % [@metric.name, @metric.format(rate)]
+        end
+
+        protected
+          def output_filename
+            "#{profile_options[:output]}/#{full_test_name}_#{@metric.name}"
           end
+      end
 
-          protected
-            def output_filename
-              "#{profile_options[:output]}/#{full_test_name}_#{@metric.name}"
-            end
+      class Benchmarker < Performer
+        def run
+          profile_options[:runs].to_i.times { run_test(@metric, :benchmark) }
+          @total = @metric.total
         end
 
-        class Benchmarker < Performer
-          def run
-            profile_options[:runs].to_i.times { run_test(@metric, :benchmark) }
-            @total = @metric.total
+        def record
+          avg = @metric.total / profile_options[:runs].to_i
+          now = Time.now.utc.xmlschema
+          with_output_file do |file|
+            file.puts "#{avg},#{now},#{environment}"
           end
+        end
+
+        def environment
+          unless defined? @env
+            app = "#{$1}.#{$2}" if File.directory?('.git') && `git branch -v` =~ /^\* (\S+)\s+(\S+)/
 
-          def record
-            avg = @metric.total / profile_options[:runs].to_i
-            now = Time.now.utc.xmlschema
-            with_output_file do |file|
-              file.puts "#{avg},#{now},#{environment}"
+            rails = Rails::VERSION::STRING
+            if File.directory?('vendor/rails/.git')
+              Dir.chdir('vendor/rails') do
+                rails += ".#{$1}.#{$2}" if `git branch -v` =~ /^\* (\S+)\s+(\S+)/
+              end
             end
+
+            ruby = defined?(RUBY_ENGINE) ? RUBY_ENGINE : 'ruby'
+            ruby += "-#{RUBY_VERSION}.#{RUBY_PATCHLEVEL}"
+
+            @env = [app, rails, ruby, RUBY_PLATFORM] * ','
           end
 
-          def environment
-            unless defined? @env
-              app = "#{$1}.#{$2}" if File.directory?('.git') && `git branch -v` =~ /^\* (\S+)\s+(\S+)/
+          @env
+        end
 
-              rails = Rails::VERSION::STRING
-              if File.directory?('vendor/rails/.git')
-                Dir.chdir('vendor/rails') do
-                  rails += ".#{$1}.#{$2}" if `git branch -v` =~ /^\* (\S+)\s+(\S+)/
-                end
-              end
+        protected
+          HEADER = 'measurement,created_at,app,rails,ruby,platform'
 
-              ruby = defined?(RUBY_ENGINE) ? RUBY_ENGINE : 'ruby'
-              ruby += "-#{RUBY_VERSION}.#{RUBY_PATCHLEVEL}"
+          def with_output_file
+            fname = output_filename
 
-              @env = [app, rails, ruby, RUBY_PLATFORM] * ','
+            if new = !File.exist?(fname)
+              FileUtils.mkdir_p(File.dirname(fname))
             end
 
-            @env
+            File.open(fname, 'ab') do |file|
+              file.puts(HEADER) if new
+              yield file
+            end
           end
 
-          protected
-            HEADER = 'measurement,created_at,app,rails,ruby,platform'
-
-            def with_output_file
-              fname = output_filename
+          def output_filename
+            "#{super}.csv"
+          end
+      end
 
-              if new = !File.exist?(fname)
-                FileUtils.mkdir_p(File.dirname(fname))
-              end
+      class Profiler < Performer
+        def initialize(*args)
+          super
+          @supported = @metric.measure_mode rescue false
+        end
 
-              File.open(fname, 'ab') do |file|
-                file.puts(HEADER) if new
-                yield file
-              end
-            end
+        def run
+          return unless @supported
 
-            def output_filename
-              "#{super}.csv"
-            end
+          RubyProf.measure_mode = @metric.measure_mode
+          RubyProf.start
+          RubyProf.pause
+          profile_options[:runs].to_i.times { run_test(@metric, :profile) }
+          @data = RubyProf.stop
+          @total = @data.threads.values.sum(0) { |method_infos| method_infos.max.total_time }
         end
 
-        class Profiler < Performer
-          def initialize(*args)
+        def report
+          if @supported
             super
-            @supported = @metric.measure_mode rescue false
+          else
+            '%20s: unsupported' % @metric.name
           end
+        end
 
-          def run
-            return unless @supported
+        def record
+          return unless @supported
 
-            RubyProf.measure_mode = @metric.measure_mode
-            RubyProf.start
-            RubyProf.pause
-            profile_options[:runs].to_i.times { run_test(@metric, :profile) }
-            @data = RubyProf.stop
-            @total = @data.threads.values.sum(0) { |method_infos| method_infos.max.total_time }
-          end
+          klasses = profile_options[:formats].map { |f| RubyProf.const_get("#{f.to_s.camelize}Printer") }.compact
 
-          def report
-            if @supported
-              super
-            else
-              '%20s: unsupported' % @metric.name
+          klasses.each do |klass|
+            fname = output_filename(klass)
+            FileUtils.mkdir_p(File.dirname(fname))
+            File.open(fname, 'wb') do |file|
+              klass.new(@data).print(file, profile_options.slice(:min_percent))
             end
           end
+        end
 
-          def record
-            return unless @supported
-
-            klasses = profile_options[:formats].map { |f| RubyProf.const_get("#{f.to_s.camelize}Printer") }.compact
-
-            klasses.each do |klass|
-              fname = output_filename(klass)
-              FileUtils.mkdir_p(File.dirname(fname))
-              File.open(fname, 'wb') do |file|
-                klass.new(@data).print(file, profile_options.slice(:min_percent))
+        protected
+          def output_filename(printer_class)
+            suffix =
+              case printer_class.name.demodulize
+                when 'FlatPrinter';                 'flat.txt'
+                when 'FlatPrinterWithLineNumbers';  'flat_line_numbers.txt'
+                when 'GraphPrinter';                'graph.txt'
+                when 'GraphHtmlPrinter';            'graph.html'
+                when 'GraphYamlPrinter';            'graph.yml'
+                when 'CallTreePrinter';             'tree.txt'
+                when 'CallStackPrinter';            'stack.html'
+                when 'DotPrinter';                  'graph.dot'
+                else printer_class.name.sub(/Printer$/, '').underscore
               end
-            end
+
+            "#{super()}_#{suffix}"
           end
+      end
 
-          protected
-            def output_filename(printer_class)
-              suffix =
-                case printer_class.name.demodulize
-                  when 'FlatPrinter';                 'flat.txt'
-                  when 'FlatPrinterWithLineNumbers';  'flat_line_numbers.txt'
-                  when 'GraphPrinter';                'graph.txt'
-                  when 'GraphHtmlPrinter';            'graph.html'
-                  when 'GraphYamlPrinter';            'graph.yml'
-                  when 'CallTreePrinter';             'tree.txt'
-                  when 'CallStackPrinter';            'stack.html'
-                  when 'DotPrinter';                  'graph.dot'
-                  else printer_class.name.sub(/Printer$/, '').underscore
-                end
-
-              "#{super()}_#{suffix}"
-            end
+      module Metrics
+        def self.[](name)
+          const_get(name.to_s.camelize)
+        rescue NameError
+          nil
         end
 
-        module Metrics
-          def self.[](name)
-            const_get(name.to_s.camelize)
-          rescue NameError
-            nil
+        class Base
+          attr_reader :total
+
+          def initialize
+            @total = 0
           end
 
-          class Base
-            attr_reader :total
+          def name
+            @name ||= self.class.name.demodulize.underscore
+          end
 
-            def initialize
-              @total = 0
-            end
+          def measure_mode
+            self.class::Mode
+          end
 
-            def name
-              @name ||= self.class.name.demodulize.underscore
-            end
+          def measure
+            0
+          end
 
-            def measure_mode
-              self.class::Mode
+          def benchmark
+            with_gc_stats do
+              before = measure
+              yield
+              @total += (measure - before)
             end
+          end
 
-            def measure
-              0
-            end
+          def profile
+            RubyProf.resume
+            yield
+          ensure
+            RubyProf.pause
+          end
 
-            def benchmark
-              with_gc_stats do
-                before = measure
+          protected
+            # Ruby 1.9 with GC::Profiler
+            if defined?(GC::Profiler)
+              def with_gc_stats
+                GC::Profiler.enable
+                GC.start
                 yield
-                @total += (measure - before)
+              ensure
+                GC::Profiler.disable
               end
-            end
-
-            def profile
-              RubyProf.resume
-              yield
-            ensure
-              RubyProf.pause
-            end
 
-            protected
-              # Ruby 1.9 with GC::Profiler
-              if defined?(GC::Profiler)
-                def with_gc_stats
-                  GC::Profiler.enable
-                  GC.start
-                  yield
-                ensure
-                  GC::Profiler.disable
-                end
-
-              # Ruby 1.8 + ruby-prof wrapper (enable/disable stats for Benchmarker)
-              elsif GC.respond_to?(:enable_stats)
-                def with_gc_stats
-                  GC.enable_stats
-                  yield
-                ensure
-                  GC.disable_stats
-                end
-
-              else
-                def with_gc_stats
-                  yield
-                end
+            # Ruby 1.8 + ruby-prof wrapper (enable/disable stats for Benchmarker)
+            elsif GC.respond_to?(:enable_stats)
+              def with_gc_stats
+                GC.enable_stats
+                yield
+              ensure
+                GC.disable_stats
               end
-          end
 
-          class Time < Base
-            def measure
-              ::Time.now.to_f
-            end
-
-            def format(measurement)
-              if measurement < 1
-                '%d ms' % (measurement * 1000)
-              else
-                '%.2f sec' % measurement
+            else
+              def with_gc_stats
+                yield
               end
             end
-          end
+        end
 
-          class ProcessTime < Time
-            Mode = RubyProf::PROCESS_TIME if RubyProf.const_defined?(:PROCESS_TIME)
+        class Time < Base
+          def measure
+            ::Time.now.to_f
+          end
 
-            def measure
-              RubyProf.measure_process_time
+          def format(measurement)
+            if measurement < 1
+              '%d ms' % (measurement * 1000)
+            else
+              '%.2f sec' % measurement
             end
           end
+        end
 
-          class WallTime < Time
-            Mode = RubyProf::WALL_TIME if RubyProf.const_defined?(:WALL_TIME)
+        class ProcessTime < Time
+          Mode = RubyProf::PROCESS_TIME if RubyProf.const_defined?(:PROCESS_TIME)
 
-            def measure
-              RubyProf.measure_wall_time
-            end
+          def measure
+            RubyProf.measure_process_time
           end
+        end
 
-          class CpuTime < Time
-            Mode = RubyProf::CPU_TIME if RubyProf.const_defined?(:CPU_TIME)
+        class WallTime < Time
+          Mode = RubyProf::WALL_TIME if RubyProf.const_defined?(:WALL_TIME)
 
-            def initialize(*args)
-              # FIXME: yeah my CPU is 2.33 GHz
-              RubyProf.cpu_frequency = 2.33e9 unless RubyProf.cpu_frequency > 0
-              super
-            end
+          def measure
+            RubyProf.measure_wall_time
+          end
+        end
 
-            def measure
-              RubyProf.measure_cpu_time
-            end
+        class CpuTime < Time
+          Mode = RubyProf::CPU_TIME if RubyProf.const_defined?(:CPU_TIME)
+
+          def initialize(*args)
+            # FIXME: yeah my CPU is 2.33 GHz
+            RubyProf.cpu_frequency = 2.33e9 unless RubyProf.cpu_frequency > 0
+            super
           end
 
-          class Memory < Base
-            Mode = RubyProf::MEMORY if RubyProf.const_defined?(:MEMORY)
+          def measure
+            RubyProf.measure_cpu_time
+          end
+        end
 
-            # Ruby 1.9 + GCdata patch
-            if GC.respond_to?(:malloc_allocated_size)
-              def measure
-                GC.malloc_allocated_size / 1024.0
-              end
+        class Memory < Base
+          Mode = RubyProf::MEMORY if RubyProf.const_defined?(:MEMORY)
 
-            # Ruby 1.8 + ruby-prof wrapper
-            elsif RubyProf.respond_to?(:measure_memory)
-              def measure
-                RubyProf.measure_memory / 1024.0
-              end
+          # Ruby 1.9 + GCdata patch
+          if GC.respond_to?(:malloc_allocated_size)
+            def measure
+              GC.malloc_allocated_size / 1024.0
             end
 
-            def format(measurement)
-              '%.2f KB' % measurement
+          # Ruby 1.8 + ruby-prof wrapper
+          elsif RubyProf.respond_to?(:measure_memory)
+            def measure
+              RubyProf.measure_memory / 1024.0
             end
           end
 
-          class Objects < Base
-            Mode = RubyProf::ALLOCATIONS if RubyProf.const_defined?(:ALLOCATIONS)
+          def format(measurement)
+            '%.2f KB' % measurement
+          end
+        end
 
-            # Ruby 1.9 + GCdata patch
-            if GC.respond_to?(:malloc_allocations)
-              def measure
-                GC.malloc_allocations
-              end
+        class Objects < Base
+          Mode = RubyProf::ALLOCATIONS if RubyProf.const_defined?(:ALLOCATIONS)
 
-            # Ruby 1.8 + ruby-prof wrapper
-            elsif RubyProf.respond_to?(:measure_allocations)
-              def measure
-                RubyProf.measure_allocations
-              end
+          # Ruby 1.9 + GCdata patch
+          if GC.respond_to?(:malloc_allocations)
+            def measure
+              GC.malloc_allocations
             end
 
-            def format(measurement)
-              measurement.to_i.to_s
+          # Ruby 1.8 + ruby-prof wrapper
+          elsif RubyProf.respond_to?(:measure_allocations)
+            def measure
+              RubyProf.measure_allocations
             end
           end
 
-          class GcRuns < Base
-            Mode = RubyProf::GC_RUNS if RubyProf.const_defined?(:GC_RUNS)
+          def format(measurement)
+            measurement.to_i.to_s
+          end
+        end
 
-            # Ruby 1.9
-            if GC.respond_to?(:count)
-              def measure
-                GC.count
-              end
+        class GcRuns < Base
+          Mode = RubyProf::GC_RUNS if RubyProf.const_defined?(:GC_RUNS)
 
-            # Ruby 1.8 + ruby-prof wrapper
-            elsif RubyProf.respond_to?(:measure_gc_runs)
-              def measure
-                RubyProf.measure_gc_runs
-              end
+          # Ruby 1.9
+          if GC.respond_to?(:count)
+            def measure
+              GC.count
             end
 
-            def format(measurement)
-              measurement.to_i.to_s
+          # Ruby 1.8 + ruby-prof wrapper
+          elsif RubyProf.respond_to?(:measure_gc_runs)
+            def measure
+              RubyProf.measure_gc_runs
             end
           end
 
-          class GcTime < Base
-            Mode = RubyProf::GC_TIME if RubyProf.const_defined?(:GC_TIME)
+          def format(measurement)
+            measurement.to_i.to_s
+          end
+        end
 
-            # Ruby 1.9 with GC::Profiler
-            if defined?(GC::Profiler) && GC::Profiler.respond_to?(:total_time)
-              def measure
-                GC::Profiler.total_time
-              end
+        class GcTime < Base
+          Mode = RubyProf::GC_TIME if RubyProf.const_defined?(:GC_TIME)
 
-            # Ruby 1.8 + ruby-prof wrapper
-            elsif RubyProf.respond_to?(:measure_gc_time)
-              def measure
-                RubyProf.measure_gc_time / 1000
-              end
+          # Ruby 1.9 with GC::Profiler
+          if defined?(GC::Profiler) && GC::Profiler.respond_to?(:total_time)
+            def measure
+              GC::Profiler.total_time
             end
 
-            def format(measurement)
-              '%.2f ms' % measurement
+          # Ruby 1.8 + ruby-prof wrapper
+          elsif RubyProf.respond_to?(:measure_gc_time)
+            def measure
+              RubyProf.measure_gc_time / 1000
             end
           end
+
+          def format(measurement)
+            '%.2f ms' % measurement
+          end
         end
       end
     end
   end
-rescue LoadError
 end