mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
1d15d5f080
* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
28 lines
891 B
Ruby
28 lines
891 B
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
|
|
|
|
describe "Float#-@" do
|
|
it "negates self" do
|
|
(2.221.send(:-@)).should be_close(-2.221, TOLERANCE)
|
|
-2.01.should be_close(-2.01,TOLERANCE)
|
|
-2_455_999_221.5512.should be_close(-2455999221.5512, TOLERANCE)
|
|
(--5.5).should be_close(5.5, TOLERANCE)
|
|
-8.551.send(:-@).should be_close(8.551, TOLERANCE)
|
|
end
|
|
|
|
it "negates self at Float boundaries" do
|
|
Float::MAX.send(:-@).should be_close(0.0 - Float::MAX, TOLERANCE)
|
|
Float::MIN.send(:-@).should be_close(0.0 - Float::MIN, TOLERANCE)
|
|
end
|
|
|
|
it "returns negative infinity for positive infinity" do
|
|
infinity_value.send(:-@).infinite?.should == -1
|
|
end
|
|
|
|
it "returns positive infinity for negative infinity" do
|
|
(-infinity_value).send(:-@).infinite?.should == 1
|
|
end
|
|
|
|
it "returns NaN for NaN" do
|
|
nan_value.send(:-@).nan?.should == true
|
|
end
|
|
end
|