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-rw-r--r--spec/ruby/core/time/shared/gm.rb7
1 files changed, 7 insertions, 0 deletions
diff --git a/spec/ruby/core/time/shared/gm.rb b/spec/ruby/core/time/shared/gm.rb
index 805e35766c..72012caa66 100644
--- a/spec/ruby/core/time/shared/gm.rb
+++ b/spec/ruby/core/time/shared/gm.rb
@@ -19,4 +19,11 @@ describe :time_gm, shared: true do
it "interprets post-Gregorian reform dates using Gregorian calendar" do
Time.send(@method, 1582, 10, 15, 12).to_i.should == -12219249600 # 2299161j
end
+
+ it "handles fractional usec close to rounding limit" do
+ time = Time.send(@method, 2000, 1, 1, 12, 30, 0, 9999r/10000)
+
+ time.usec.should == 0
+ time.nsec.should == 999
+ end
end