Merge psych-3.0.0.beta2 from https://github.com/ruby/psych

  It contains following changes from 3.0.0.beta1

    * Preserve time zone offset when deserializing times
      https://github.com/ruby/psych/pull/316

    * Enable YAML serialization of Ruby delegators
      https://github.com/ruby/psych/pull/158

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59101 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 48 insertions, 0 deletions

diff --git a/test/psych/test_date_time.rb b/test/psych/test_date_time.rb
index 443669d17f..3c8b436098 100644
--- a/test/psych/test_date_time.rb
+++ b/test/psych/test_date_time.rb
@@ -9,10 +9,41 @@ module Psych
       assert_cycle time
     end
 
+    def test_usec
+      time = Time.utc(2017, 4, 13, 12, 0, 0, 5)
+      assert_cycle time
+    end
+
+    def test_non_utc
+      time = Time.new(2017, 4, 13, 12, 0, 0.5, "+09:00")
+      assert_cycle time
+    end
+
+    def test_timezone_offset
+      times = [Time.new(2017, 4, 13, 12, 0, 0, "+09:00"),
+               Time.new(2017, 4, 13, 12, 0, 0, "-05:00")]
+      cycled = Psych::load(Psych.dump times)
+      assert_match(/12:00:00 \+0900/, cycled.first.to_s)
+      assert_match(/12:00:00 -0500/,  cycled.last.to_s)
+    end
+
     def test_new_datetime
       assert_cycle DateTime.new
     end
 
+    def test_datetime_non_utc
+      dt = DateTime.new(2017, 4, 13, 12, 0, 0.5, "+09:00")
+      assert_cycle dt
+    end
+
+    def test_datetime_timezone_offset
+      times = [DateTime.new(2017, 4, 13, 12, 0, 0, "+09:00"),
+               DateTime.new(2017, 4, 13, 12, 0, 0, "-05:00")]
+      cycled = Psych::load(Psych.dump times)
+      assert_match(/12:00:00\+09:00/, cycled.first.to_s)
+      assert_match(/12:00:00-05:00/,  cycled.last.to_s)
+    end
+
     def test_invalid_date
       assert_cycle "2013-10-31T10:40:07-000000000000033"
     end
diff --git a/test/psych/visitors/test_yaml_tree.rb b/test/psych/visitors/test_yaml_tree.rb
index ea38f6d6d4..8fc18f2fe6 100644
--- a/test/psych/visitors/test_yaml_tree.rb
+++ b/test/psych/visitors/test_yaml_tree.rb
@@ -4,6 +4,15 @@ require 'psych/helper'
 module Psych
   module Visitors
     class TestYAMLTree < TestCase
+      class TestDelegatorClass < Delegator
+        def initialize(obj); super; @obj = obj; end
+        def __setobj__(obj); @obj = obj; end
+        def __getobj__; @obj; end
+      end
+
+      class TestSimpleDelegatorClass < SimpleDelegator
+      end
+
       def setup
         super
         @v = Visitors::YAMLTree.create
@@ -175,6 +184,14 @@ module Psych
         assert_cycle 'nUll'
         assert_cycle '~'
       end
+
+      def test_delegator
+        assert_cycle(TestDelegatorClass.new([1, 2, 3]))
+      end
+
+      def test_simple_delegator
+        assert_cycle(TestSimpleDelegatorClass.new([1, 2, 3]))
+      end
     end
   end
 end