do not use the select_one variant for ruby 2.1, as there is a deadlock on ssl connect that is triggered in a test

.rubocop.yml

@@ -69,6 +69,9 @@ Style/TrailingCommaInArguments:
 Style/TrailingUnderscoreVariable:
   Enabled: false
 
+Style/AccessModifierDeclarations:
+  Enabled: false
+
 Performance/TimesMap:
   Enabled: false
 

Gemfile

@@ -40,7 +40,11 @@ end
 
 gem "hanna-nouveau", require: false
 gem "faraday", :require => false
-gem "pry", :require => false
+if RUBY_VERSION < "2.2"
+  gem "pry", "~> 0.12.2", :require => false
+else
+  gem "pry", :require => false
+end
 
 gem "minitest", require: false
 gem "minitest-proveit", require: false

lib/httpx/selector.rb

@@ -61,12 +61,13 @@ class HTTPX::Selector
     monitor
   end
 
-  # waits for read/write events for +interval+. Yields for monitors of
-  # selected IO objects.
+  # Closes the selector.
   #
-  def select(interval, &block)
-    return select_one(interval, &block) if @selectables.size == 1
+  def close; end
 
+  private
+
+  def select_many(interval)
     begin
       r = nil
       w = nil
@@ -102,12 +103,6 @@ class HTTPX::Selector
     end if writers
   end
 
-  # Closes the selector.
-  #
-  def close; end
-
-  private
-
   def select_one(interval)
     io, monitor = @selectables.first
 
@@ -128,4 +123,23 @@ class HTTPX::Selector
   rescue IOError, SystemCallError
     @selectables.reject! { |ios, _| ios.closed? }
   end
+
+  # waits for read/write events for +interval+. Yields for monitors of
+  # selected IO objects.
+  #
+  if RUBY_VERSION < "2.2" || RUBY_ENGINE == "jruby"
+
+    alias_method :select, :select_many
+
+  else
+
+    def select(interval, &block)
+      return select_one(interval, &block) if @selectables.size == 1
+
+      select_many(interval, &block)
+    end
+
+  end
+
+  public :select
 end

test/support/resolver_helpers.rb

@@ -135,8 +135,8 @@ module ResolverHelpers
     def self.extended(obj)
       obj.singleton_class.class_eval do
         attr_reader :queries
-        public :parse # rubocop:disable Style/AccessModifierDeclarations
-        public :resolve # rubocop:disable Style/AccessModifierDeclarations
+        public :parse
+        public :resolve
       end
     end
   end