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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
21 lines
742 B
Ruby
21 lines
742 B
Ruby
require File.expand_path('../../../../spec_helper', __FILE__)
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ruby_version_is ''...'2.5' do
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require 'mathn'
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describe "Bignum#**" do
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before :each do
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@bignum = bignum_value(47)
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end
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it "returns self raised to other (positive) power" do
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(@bignum ** 4).should == 7237005577332262361485077344629993318496048279512298547155833600056910050625
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(@bignum ** 1.2).should be_close(57262152889751597425762.57804, TOLERANCE)
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end
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it "returns a complex number when negative and raised to a fractional power" do
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((-@bignum) ** (1/3)).should be_close(Complex(1048576,1816186.907597341), TOLERANCE)
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((-@bignum) ** (1.0/3)).should be_close(Complex(1048576,1816186.907597341), TOLERANCE)
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end
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end
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end
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