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-rw-r--r--test/date/test_date_conv.rb7
1 files changed, 7 insertions, 0 deletions
diff --git a/test/date/test_date_conv.rb b/test/date/test_date_conv.rb
index 5565ca8e5e..daf0374294 100644
--- a/test/date/test_date_conv.rb
+++ b/test/date/test_date_conv.rb
@@ -49,6 +49,13 @@ class TestDateConv < Test::Unit::TestCase
assert_equal([2004, 9, 19, 1, 2, 3, 456789123],
[t.year, t.mon, t.mday, t.hour, t.min, t.sec, t.nsec])
end
+
+ if Time.allocate.respond_to?(:subsec)
+ d = DateTime.new(2004, 9, 19, 1, 2, 3, 0) + 456789123456789123.to_r/86400000000000000000000
+ t = d.to_time.utc
+ assert_equal([2004, 9, 19, 1, 2, 3, Rational(456789123456789123,1000000000000000000)],
+ [t.year, t.mon, t.mday, t.hour, t.min, t.sec, t.subsec])
+ end
end
def test_to_date__from_time