diff options
Diffstat (limited to 'spec/ruby/library/datetime')
-rw-r--r-- | spec/ruby/library/datetime/add_spec.rb | 2 | ||||
-rw-r--r-- | spec/ruby/library/datetime/subtract_spec.rb | 12 |
2 files changed, 12 insertions, 2 deletions
diff --git a/spec/ruby/library/datetime/add_spec.rb b/spec/ruby/library/datetime/add_spec.rb index a6d98914bd..20288e2105 100644 --- a/spec/ruby/library/datetime/add_spec.rb +++ b/spec/ruby/library/datetime/add_spec.rb @@ -4,6 +4,6 @@ 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 + (datetime + 0.00001001).to_time.usec.should == 864864 end end diff --git a/spec/ruby/library/datetime/subtract_spec.rb b/spec/ruby/library/datetime/subtract_spec.rb index ed88533246..ba01f4eff6 100644 --- a/spec/ruby/library/datetime/subtract_spec.rb +++ b/spec/ruby/library/datetime/subtract_spec.rb @@ -4,6 +4,16 @@ require 'date' describe "DateTime#-" do it "is able to subtract sub-millisecond precision values" do date = DateTime.new(2017) - ((date + 0.00001) - date).should == Rational(1, 100000) + diff = Rational(123456789, 24*60*60*1000*1000) + ((date + diff) - date).should == diff + (date - (date + diff)).should == -diff + (date - (date - diff)).should == diff + ((date - diff) - date).should == -diff + end + + it "correctly calculates sub-millisecond time differences" do #5493 + dt1 = DateTime.new(2018, 1, 1, 0, 0, 30) + dt2 = DateTime.new(2018, 1, 1, 0, 1, 29.000001) + ((dt2 - dt1) * 24 * 60 * 60).should == 59.000001 end end |