* ext/win32ole/win32ole.c (d2time): fix the bug of VT_DATE

  to String conversion when negative value.
	  
* test/win32ole/test_win32ole_variant.rb: ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17878 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 38 insertions, 0 deletions

diff --git a/test/win32ole/test_win32ole_variant.rb b/test/win32ole/test_win32ole_variant.rb
index ddce062820..1226e0de50 100644
--- a/test/win32ole/test_win32ole_variant.rb
+++ b/test/win32ole/test_win32ole_variant.rb
@@ -540,6 +540,44 @@ if defined?(WIN32OLE_VARIANT)
       }
     end
 
+    def test_conversion_vt_date
+      obj = WIN32OLE_VARIANT.new(-657434, WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("0100/01/01 00:00:00", obj.value)
+
+      obj = WIN32OLE_VARIANT.new("1500/12/29 23:59:59", WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("1500/12/29 23:59:59", obj.value)
+
+      obj = WIN32OLE_VARIANT.new("1500/12/30 00:00:00", WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("1500/12/30 00:00:00", obj.value)
+
+      obj = WIN32OLE_VARIANT.new("1500/12/30 00:00:01", WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("1500/12/30 00:00:01", obj.value)
+
+      obj = WIN32OLE_VARIANT.new("1899/12/29 23:59:59", WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("1899/12/29 23:59:59", obj.value)
+
+      obj = WIN32OLE_VARIANT.new("1899/12/30 00:00:00", WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("1899/12/30 00:00:00", obj.value)
+
+      obj = WIN32OLE_VARIANT.new("1899/12/30 00:00:01", WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("1899/12/30 00:00:01", obj.value)
+
+      obj = WIN32OLE_VARIANT.new(0, WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("1899/12/30 00:00:00", obj.value)
+
+      obj = WIN32OLE_VARIANT.new("2008/12/29 23:59:59", WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("2008/12/29 23:59:59", obj.value)
+
+      obj = WIN32OLE_VARIANT.new("2008/12/30 00:00:00", WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("2008/12/30 00:00:00", obj.value)
+
+      obj = WIN32OLE_VARIANT.new("2008/12/30 00:00:01", WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("2008/12/30 00:00:01", obj.value)
+
+      obj = WIN32OLE_VARIANT.new("9999/12/31 23:59:59", WIN32OLE::VARIANT::VT_DATE)
+      assert_equal("9999/12/31 23:59:59", obj.value)
+    end
+
     def test_create_nil_dispatch
       var = WIN32OLE_VARIANT.new(nil, WIN32OLE::VARIANT::VT_DISPATCH)
       assert_nil(var.value)