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23 lines
673 B
Ruby
23 lines
673 B
Ruby
require_relative '../../spec_helper'
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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").should.nan?
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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").should_not.nan?
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BigDecimal("-Infinity").should_not.nan?
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BigDecimal("0").should_not.nan?
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BigDecimal("+0").should_not.nan?
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BigDecimal("-0").should_not.nan?
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BigDecimal("2E40001").should_not.nan?
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BigDecimal("3E-20001").should_not.nan?
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BigDecimal("0E-200000000").should_not.nan?
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BigDecimal("0E200000000000").should_not.nan?
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BigDecimal("0.000000000000000000000000").should_not.nan?
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end
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end
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