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require File.dirname(__FILE__) + '/../../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
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