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require_relative '../../spec_helper'
require 'bigdecimal'
describe "BigDecimal#nan?" do
it "returns true if self is not a number" do
BigDecimal("NaN").should.nan?
end
it "returns false if self is not a NaN" do
BigDecimal("Infinity").should_not.nan?
BigDecimal("-Infinity").should_not.nan?
BigDecimal("0").should_not.nan?
BigDecimal("+0").should_not.nan?
BigDecimal("-0").should_not.nan?
BigDecimal("2E40001").should_not.nan?
BigDecimal("3E-20001").should_not.nan?
BigDecimal("0E-200000000").should_not.nan?
BigDecimal("0E200000000000").should_not.nan?
BigDecimal("0.000000000000000000000000").should_not.nan?
end
end
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