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require File.dirname(__FILE__) + '/../../spec_helper'
require 'bigdecimal'
describe "BigDecimal#zero?" do
it "returns true if self does equal zero" do
really_small_zero = BigDecimal("0E-200000000")
really_big_zero = BigDecimal("0E200000000000")
really_small_zero.zero?.should == true
really_big_zero.zero?.should == true
BigDecimal("0.000000000000000000000000").zero?.should == true
BigDecimal("0").zero?.should == true
BigDecimal("0E0").zero?.should == true
BigDecimal("+0").zero?.should == true
BigDecimal("-0").zero?.should == true
end
it "returns false otherwise" do
BigDecimal("0000000001").zero?.should == false
BigDecimal("2E40001").zero?.should == false
BigDecimal("3E-20001").zero?.should == false
BigDecimal("Infinity").zero?.should == false
BigDecimal("-Infinity").zero?.should == false
BigDecimal("NaN").zero?.should == false
end
end
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