2018-03-04 10:09:32 -05:00
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require_relative '../../spec_helper'
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2017-05-07 08:04:49 -04:00
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require 'bigdecimal'
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describe "BigDecimal#nonzero?" do
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it "returns self if self doesn't equal zero" do
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# documentation says, it returns true. (04/10/08)
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e2_plus = BigDecimal("2E40001")
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e3_minus = BigDecimal("3E-20001")
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infinity = BigDecimal("Infinity")
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infinity_minus = BigDecimal("-Infinity")
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nan = BigDecimal("NaN")
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infinity.nonzero?.should equal(infinity)
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infinity_minus.nonzero?.should equal(infinity_minus)
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nan.nonzero?.should equal(nan)
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e3_minus.nonzero?.should equal(e3_minus)
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e2_plus.nonzero?.should equal(e2_plus)
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end
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it "returns nil otherwise" do
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# documentation states, it should return false. (04/10/08)
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really_small_zero = BigDecimal("0E-200000000")
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really_big_zero = BigDecimal("0E200000000000")
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really_small_zero.nonzero?.should == nil
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really_big_zero.nonzero?.should == nil
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BigDecimal("0.000000000000000000000000").nonzero?.should == nil
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end
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end
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