1 files changed, 38 insertions, 0 deletions
diff --git a/jni/ruby/test/psych/test_date_time.rb b/jni/ruby/test/psych/test_date_time.rb
new file mode 100644
index 0000000..72150ad
--- /dev/null
+++ b/jni/ruby/test/psych/test_date_time.rb
@@ -0,0 +1,38 @@
+require_relative 'helper'
+require 'date'
+
+module Psych
+  class TestDateTime < TestCase
+    def test_negative_year
+      time = Time.utc -1, 12, 16
+      assert_cycle time
+    end
+
+    def test_new_datetime
+      assert_cycle DateTime.new
+    end
+
+    def test_invalid_date
+      assert_cycle "2013-10-31T10:40:07-000000000000033"
+    end
+
+    def test_string_tag
+      dt = DateTime.now
+      yaml = Psych.dump dt
+      assert_match(/DateTime/, yaml)
+    end
+
+    def test_round_trip
+      dt = DateTime.now
+      assert_cycle dt
+    end
+
+    def test_alias_with_time
+      t    = Time.now
+      h    = {:a => t, :b => t}
+      yaml = Psych.dump h
+      assert_match('&', yaml)
+      assert_match('*', yaml)
+    end
+  end
+end