1 files changed, 37 insertions, 15 deletions
diff --git a/spec/ruby/library/datetime/to_time_spec.rb b/spec/ruby/library/datetime/to_time_spec.rb
index f5b7cb8a23..a3ffc019fb 100644
--- a/spec/ruby/library/datetime/to_time_spec.rb
+++ b/spec/ruby/library/datetime/to_time_spec.rb
@@ -1,26 +1,48 @@
-require File.expand_path('../../../spec_helper', __FILE__)
+require_relative '../../spec_helper'
 require 'date'
+date_version = defined?(Date::VERSION) ? Date::VERSION : '3.1.0'
 
 describe "DateTime#to_time" do
   it "yields a new Time object" do
-    DateTime.now.to_time.should be_kind_of(Time)
+    DateTime.now.to_time.should.is_a?(Time)
   end
 
-  ruby_version_is "2.4" do
-    it "preserves the same time regardless of local time or zone" do
-      date = DateTime.new(2012, 12, 24, 12, 23, 00, '+03:00')
+  it "returns a Time representing the same instant" do
+    datetime = DateTime.civil(2012, 12, 31, 23, 58, 59)
+    time = datetime.to_time.utc
 
-      with_timezone("Pactific/Pago_Pago", -11) do
-        time = date.to_time
+    time.year.should == 2012
+    time.month.should == 12
+    time.day.should == 31
+    time.hour.should == 23
+    time.min.should == 58
+    time.sec.should == 59
+  end
+
+  it "returns a Time representing the same instant before Gregorian" do
+    datetime = DateTime.civil(1582, 10, 4, 23, 58, 59)
+    time = datetime.to_time.utc
+    time.year.should == 1582
+    time.month.should == 10
+    time.day.should == 14
+    time.hour.should == 23
+    time.min.should == 58
+    time.sec.should == 59
+  end
+
+  it "preserves the same time regardless of local time or zone" do
+    date = DateTime.new(2012, 12, 24, 12, 23, 00, '+03:00')
+
+    with_timezone("Pacific/Pago_Pago", -11) do
+      time = date.to_time
 
-        time.utc_offset.should == 3 * 3600
-        time.year.should == date.year
-        time.mon.should == date.mon
-        time.day.should == date.day
-        time.hour.should == date.hour
-        time.min.should == date.min
-        time.sec.should == date.sec
-      end
+      time.utc_offset.should == 3 * 3600
+      time.year.should == date.year
+      time.mon.should == date.mon
+      time.day.should == date.day
+      time.hour.should == date.hour
+      time.min.should == date.min
+      time.sec.should == date.sec
     end
   end
 end