update rspec to >= 2.99 and rspec --init

.rspec

@@ -1,2 +1,4 @@
 --color
---format progress
+--warnings
+--require spec_helper
+--require rbuv

rbuv.gemspec

@@ -22,6 +22,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "bundler"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rake-compiler"
-  spec.add_development_dependency "rspec", "~> 2.0"
+  spec.add_development_dependency "rspec", ">= 2.99"
   spec.add_development_dependency "coveralls"
 end

spec/signal_spec.rb

@@ -1,5 +1,3 @@
-require 'spec_helper'
-
 describe Rbuv::Signal do
   it "#start" do
     block = double

spec/spec_helper.rb

@@ -1,22 +1,81 @@
 require 'coveralls'
 Coveralls.wear!
 
-require 'rbuv'
-
 # This file was generated by the `rspec --init` command. Conventionally, all
 # specs live under a `spec` directory, which RSpec adds to the `$LOAD_PATH`.
-# Require this file using `require "spec_helper"` to ensure that it is only
-# loaded once.
+# The generated `.rspec` file contains `--require spec_helper` which will cause this
+# file to always be loaded, without a need to explicitly require it in any files.
+#
+# Given that it is always loaded, you are encouraged to keep this file as
+# light-weight as possible. Requiring heavyweight dependencies from this file
+# will add to the boot time of your test suite on EVERY test run, even for an
+# individual file that may not need all of that loaded. Instead, make a
+# separate helper file that requires this one and then use it only in the specs
+# that actually need it.
+#
+# The `.rspec` file also contains a few flags that are not defaults but that
+# users commonly want.
 #
 # See http://rubydoc.info/gems/rspec-core/RSpec/Core/Configuration
 RSpec.configure do |config|
-  config.treat_symbols_as_metadata_keys_with_true_values = true
-  config.run_all_when_everything_filtered = true
+# The settings below are suggested to provide a good initial experience
+# with RSpec, but feel free to customize to your heart's content.
+=begin
+  # These two settings work together to allow you to limit a spec run
+  # to individual examples or groups you care about by tagging them with
+  # `:focus` metadata. When nothing is tagged with `:focus`, all examples
+  # get run.
   config.filter_run :focus
+  config.run_all_when_everything_filtered = true
+
+  # Many RSpec users commonly either run the entire suite or an individual
+  # file, and it's useful to allow more verbose output when running an
+  # individual spec file.
+  if config.files_to_run.one?
+    # Use the documentation formatter for detailed output,
+    # unless a formatter has already been configured
+    # (e.g. via a command-line flag).
+    config.default_formatter = 'doc'
+  end
+
+  # Print the 10 slowest examples and example groups at the
+  # end of the spec run, to help surface which specs are running
+  # particularly slow.
+  config.profile_examples = 10
 
   # Run specs in random order to surface order dependencies. If you find an
   # order dependency and want to debug it, you can fix the order by providing
   # the seed, which is printed after each run.
   #     --seed 1234
-  config.order = 'random'
+  config.order = :random
+
+  # Seed global randomization in this process using the `--seed` CLI option.
+  # Setting this allows you to use `--seed` to deterministically reproduce
+  # test failures related to randomization by passing the same `--seed` value
+  # as the one that triggered the failure.
+  Kernel.srand config.seed
+
+  # rspec-expectations config goes here. You can use an alternate
+  # assertion/expectation library such as wrong or the stdlib/minitest
+  # assertions if you prefer.
+  config.expect_with :rspec do |expectations|
+    # Enable only the newer, non-monkey-patching expect syntax.
+    # For more details, see:
+    #   - http://myronmars.to/n/dev-blog/2012/06/rspecs-new-expectation-syntax
+    expectations.syntax = :expect
+  end
+
+  # rspec-mocks config goes here. You can use an alternate test double
+  # library (such as bogus or mocha) by changing the `mock_with` option here.
+  config.mock_with :rspec do |mocks|
+    # Enable only the newer, non-monkey-patching expect syntax.
+    # For more details, see:
+    #   - http://teaisaweso.me/blog/2013/05/27/rspecs-new-message-expectation-syntax/
+    mocks.syntax = :expect
+
+    # Prevents you from mocking or stubbing a method that does not exist on
+    # a real object. This is generally recommended.
+    mocks.verify_partial_doubles = true
+  end
+=end
 end

spec/tcp_spec.rb

@@ -1,4 +1,3 @@
-require 'spec_helper'
 require 'socket'
 
 def port_in_use?(port, host='127.0.0.1')

spec/timer_spec.rb

@@ -1,5 +1,3 @@
-require 'spec_helper'
-
 describe Rbuv::Timer do
   it { is_expected.to be_a_kind_of Rbuv::Handle }