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24 lines
753 B
Ruby
24 lines
753 B
Ruby
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require File.expand_path('../../../spec_helper', __FILE__)
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require 'bigdecimal'
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describe "BigDecimal#nan?" do
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it "returns true if self is not a number" do
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BigDecimal("NaN").nan?.should == true
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end
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it "returns false if self is not a NaN" do
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BigDecimal("Infinity").nan?.should == false
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BigDecimal("-Infinity").nan?.should == false
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BigDecimal("0").nan?.should == false
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BigDecimal("+0").nan?.should == false
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BigDecimal("-0").nan?.should == false
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BigDecimal("2E40001").nan?.should == false
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BigDecimal("3E-20001").nan?.should == false
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BigDecimal("0E-200000000").nan?.should == false
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BigDecimal("0E200000000000").nan?.should == false
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BigDecimal("0.000000000000000000000000").nan?.should == false
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end
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end
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