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-rw-r--r--spec/ruby/library/datetime/add_spec.rb9
1 files changed, 9 insertions, 0 deletions
diff --git a/spec/ruby/library/datetime/add_spec.rb b/spec/ruby/library/datetime/add_spec.rb
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+++ b/spec/ruby/library/datetime/add_spec.rb
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+require_relative '../../spec_helper'
+require 'date'
+
+describe "DateTime#+" do
+ it "is able to add sub-millisecond precision values" do
+ datetime = DateTime.new(2017)
+ (datetime + 0.00001).to_time.usec.should == 864000
+ end
+end