mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
401b64c4e8
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
23 lines
731 B
Ruby
23 lines
731 B
Ruby
require_relative '../../spec_helper'
|
|
require 'bigdecimal'
|
|
|
|
describe "BigDecimal#nan?" do
|
|
|
|
it "returns true if self is not a number" do
|
|
BigDecimal("NaN").nan?.should == true
|
|
end
|
|
|
|
it "returns false if self is not a NaN" do
|
|
BigDecimal("Infinity").nan?.should == false
|
|
BigDecimal("-Infinity").nan?.should == false
|
|
BigDecimal("0").nan?.should == false
|
|
BigDecimal("+0").nan?.should == false
|
|
BigDecimal("-0").nan?.should == false
|
|
BigDecimal("2E40001").nan?.should == false
|
|
BigDecimal("3E-20001").nan?.should == false
|
|
BigDecimal("0E-200000000").nan?.should == false
|
|
BigDecimal("0E200000000000").nan?.should == false
|
|
BigDecimal("0.000000000000000000000000").nan?.should == false
|
|
end
|
|
|
|
end
|