Add in-tree mspec and ruby/spec

* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 70 insertions, 0 deletions

diff --git a/spec/mspec/lib/mspec/runner/formatters/profile.rb b/spec/mspec/lib/mspec/runner/formatters/profile.rb
new file mode 100644
index 0000000000..498cd4a3b7
--- /dev/null
+++ b/spec/mspec/lib/mspec/runner/formatters/profile.rb
@@ -0,0 +1,70 @@
+require 'mspec/expectations/expectations'
+require 'mspec/runner/formatters/dotted'
+
+class ProfileFormatter < DottedFormatter
+  def initialize(out=nil)
+    super
+
+    @describe_name = nil
+    @describe_time = nil
+    @describes = []
+    @its = []
+  end
+
+  def register
+    super
+    MSpec.register :enter, self
+  end
+
+  # Callback for the MSpec :enter event. Prints the
+  # +describe+ block string.
+  def enter(describe)
+    if @describe_time
+      @describes << [@describe_name, Time.now.to_f - @describe_time]
+    end
+
+    @describe_name = describe
+    @describe_time = Time.now.to_f
+  end
+
+  # Callback for the MSpec :before event. Prints the
+  # +it+ block string.
+  def before(state)
+    super
+
+    @it_name = state.it
+    @it_time = Time.now.to_f
+  end
+
+  # Callback for the MSpec :after event. Prints a
+  # newline to finish the description string output.
+  def after(state)
+    @its << [@describe_name, @it_name, Time.now.to_f - @it_time]
+    super
+  end
+
+  def finish
+    puts "\nProfiling info:"
+
+    desc = @describes.sort { |a,b| b.last <=> a.last }
+    desc.delete_if { |a| a.last <= 0.001 }
+    show = desc[0, 100]
+
+    puts "Top #{show.size} describes:"
+
+    show.each do |des, time|
+      printf "%3.3f - %s\n", time, des
+    end
+
+    its = @its.sort { |a,b| b.last <=> a.last }
+    its.delete_if { |a| a.last <= 0.001 }
+    show = its[0, 100]
+
+    puts "\nTop #{show.size} its:"
+    show.each do |des, it, time|
+      printf "%3.3f - %s %s\n", time, des, it
+    end
+
+    super
+  end
+end