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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
41 lines
1.9 KiB
Ruby
41 lines
1.9 KiB
Ruby
require File.expand_path('../../fixtures/classes', __FILE__)
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describe :complex_math_log10, shared: true do
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it "returns the base-10 logarithm of the passed argument" do
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@object.send(:log10, 0.0001).should be_close(-4.0, TOLERANCE)
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@object.send(:log10, 0.000000000001e-15).should be_close(-27.0, TOLERANCE)
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@object.send(:log10, 1).should be_close(0.0, TOLERANCE)
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@object.send(:log10, 10).should be_close(1.0, TOLERANCE)
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@object.send(:log10, 10e15).should be_close(16.0, TOLERANCE)
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end
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it "returns the base-10 logarithm for Complex numbers" do
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@object.send(:log10, Complex(3, 4)).should be_close(Complex(0.698970004336019, 0.402719196273373), TOLERANCE)
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@object.send(:log10, Complex(-3, 4)).should be_close(Complex(0.698970004336019, 0.961657157568468), TOLERANCE)
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end
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# BUG: does not work correctly, because Math#log10
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# does not check for negative values
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#it "returns the base-10 logarithm for negative numbers as a Complex number" do
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# @object.send(:log10, -10).should be_close(Complex(2.30258509299405, 3.14159265358979), TOLERANCE)
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# @object.send(:log10, -20).should be_close(Complex(2.99573227355399, 3.14159265358979), TOLERANCE)
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#end
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end
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describe :complex_math_log10_bang, shared: true do
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it "returns the base-10 logarithm of the argument" do
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@object.send(:log10!, 0.0001).should be_close(-4.0, TOLERANCE)
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@object.send(:log10!, 0.000000000001e-15).should be_close(-27.0, TOLERANCE)
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@object.send(:log10!, 1).should be_close(0.0, TOLERANCE)
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@object.send(:log10!, 10).should be_close(1.0, TOLERANCE)
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@object.send(:log10!, 10e15).should be_close(16.0, TOLERANCE)
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end
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it "raises an Errno::EDOM when the passed argument is negative" do
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lambda { @object.send(:log10!, -10) }.should raise_error(Errno::EDOM)
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end
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it "raises a TypeError when passed a Complex number" do
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lambda { @object.send(:log10!, Complex(4, 5)) }.should raise_error(TypeError)
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end
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end
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