Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/core/time/dup_spec.rb

@@ -0,0 +1,46 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Time#dup" do
+  it "returns a Time object that represents the same time" do
+    t = Time.at(100)
+    t.dup.tv_sec.should == t.tv_sec
+  end
+
+  it "copies the gmt state flag" do
+    Time.now.gmtime.dup.gmt?.should == true
+  end
+
+  it "returns an independent Time object" do
+    t = Time.now
+    t2 = t.dup
+    t.gmtime
+
+    t2.gmt?.should == false
+  end
+
+  it "returns a subclass instance" do
+    c = Class.new(Time)
+    t = c.now
+
+    t.should be_an_instance_of(c)
+    t.dup.should be_an_instance_of(c)
+  end
+
+  it "returns a clone of Time instance" do
+    c = Time.dup
+    t = c.now
+
+    t.should be_an_instance_of(c)
+    t.should_not be_an_instance_of(Time)
+
+    t.dup.should be_an_instance_of(c)
+    t.dup.should_not be_an_instance_of(Time)
+  end
+
+  it "does not copy frozen status from the original" do
+    t = Time.now
+    t.freeze
+    t2 = t.dup
+    t2.frozen?.should be_false
+  end
+end