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require File.expand_path('../../../spec_helper', __FILE__)
require 'bigdecimal'
describe "BigDecimal#finite?" do
before :each do
@one = BigDecimal("1")
@zero = BigDecimal("0")
@zero_pos = BigDecimal("+0")
@zero_neg = BigDecimal("-0")
@two = BigDecimal("2")
@three = BigDecimal("3")
@nan = BigDecimal("NaN")
@infinity = BigDecimal("Infinity")
@infinity_minus = BigDecimal("-Infinity")
@one_minus = BigDecimal("-1")
@frac_1 = BigDecimal("1E-99999")
@frac_2 = BigDecimal("0.9E-99999")
@big = BigDecimal("2E40001")
@finite_vals = [@one, @zero, @zero_pos, @zero_neg, @two,
@three, @frac_1, @frac_2, @big, @one_minus]
end
it "is false if Infinity or NaN" do
@infinity.finite?.should == false
@infinity_minus.finite?.should == false
@nan.finite?.should == false
end
it "returns true for finite values" do
@finite_vals.each do |val|
val.finite?.should == true
end
end
end
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