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1d15d5f080
* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
37 lines
1.1 KiB
Ruby
37 lines
1.1 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes', __FILE__)
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describe "Math.frexp" do
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it "returns the normalized fraction and exponent" do
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frac, exp = Math.frexp(102.83)
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frac.should be_close(0.803359375, TOLERANCE)
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exp.should == 7
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end
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it "raises a TypeError if the argument cannot be coerced with Float()" do
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lambda { Math.frexp("test") }.should raise_error(TypeError)
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end
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it "returns NaN given NaN" do
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frac, _exp = Math.frexp(nan_value)
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frac.nan?.should be_true
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end
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it "raises a TypeError if the argument is nil" do
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lambda { Math.frexp(nil) }.should raise_error(TypeError)
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end
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it "accepts any argument that can be coerced with Float()" do
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frac, exp = Math.frexp(MathSpecs::Float.new)
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frac.should be_close(0.5, TOLERANCE)
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exp.should == 1
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end
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end
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describe "Math#frexp" do
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it "is accessible as a private instance method" do
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frac, exp = IncludesMath.new.send(:frexp, 2.1415)
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frac.should be_close(0.535375, TOLERANCE)
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exp.should == 2
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end
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end
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