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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
49 lines
1.4 KiB
Ruby
49 lines
1.4 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require 'bigdecimal'
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describe "BigDecimal#precs" do
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before :each do
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@infinity = BigDecimal("Infinity")
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@infinity_neg = BigDecimal("-Infinity")
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@nan = BigDecimal("NaN")
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@zero = BigDecimal("0")
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@zero_neg = BigDecimal("-0")
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@arr = [BigDecimal("2E40001"), BigDecimal("3E-20001"),\
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@infinity, @infinity_neg, @nan, @zero, @zero_neg]
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@precision = BigDecimal::BASE.to_s.length - 1
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end
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it "returns array of two values" do
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@arr.each do |x|
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x.precs.kind_of?(Array).should == true
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x.precs.size.should == 2
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end
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end
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it "returns Integers as array values" do
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@arr.each do |x|
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x.precs[0].kind_of?(Integer).should == true
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x.precs[1].kind_of?(Integer).should == true
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end
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end
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it "returns the current value of significant digits as the first value" do
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BigDecimal("3.14159").precs[0].should >= 6
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BigDecimal('1').precs[0].should == BigDecimal('1' + '0' * 100).precs[0]
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[@infinity, @infinity_neg, @nan, @zero, @zero_neg].each do |value|
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value.precs[0].should <= @precision
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end
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end
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it "returns the maximum number of significant digits as the second value" do
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BigDecimal("3.14159").precs[1].should >= 6
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BigDecimal('1').precs[1].should >= 1
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BigDecimal('1' + '0' * 100).precs[1] >= 101
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[@infinity, @infinity_neg, @nan, @zero, @zero_neg].each do |value|
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value.precs[1].should >= 1
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end
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end
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end
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