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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
15 lines
608 B
Ruby
15 lines
608 B
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe "Float#**" do
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it "returns self raise to the other power" do
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(2.3 ** 3).should be_close(12.167,TOLERANCE)
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(5.2 ** -1).should be_close(0.192307692307692,TOLERANCE)
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(9.5 ** 0.5).should be_close(3.08220700148449, TOLERANCE)
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(9.5 ** 0xffffffff).to_s.should == 'Infinity'
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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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((-8.0) ** (1.0/3)) .should be_close(Complex(1, 1.73205), TOLERANCE)
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((-8.0) ** Rational(1,3)).should be_close(Complex(1, 1.73205), TOLERANCE)
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end
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end
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