ruby/spec/rubyspec/library/complex/math/shared/cosh.rb
eregon 95e8c48dd3 Add in-tree mspec and ruby/spec
* 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
2017-05-07 12:04:49 +00:00

28 lines
1.2 KiB
Ruby

require File.expand_path('../../fixtures/classes', __FILE__)
describe :complex_math_cosh, shared: true do
it "returns the hyperbolic cosine of the passed argument" do
@object.send(:cosh, 0.0).should == 1.0
@object.send(:cosh, -0.0).should == 1.0
@object.send(:cosh, 1.5).should be_close(2.35240961524325, TOLERANCE)
@object.send(:cosh, -2.99).should be_close(9.96798496414416, TOLERANCE)
end
it "returns the hyperbolic cosine for Complex numbers" do
@object.send(:cosh, Complex(0, CMath::PI)).should be_close(Complex(-1.0, 0.0), TOLERANCE)
@object.send(:cosh, Complex(3, 4)).should be_close(Complex(-6.58066304055116, -7.58155274274654), TOLERANCE)
end
end
describe :complex_math_cosh_bang, shared: true do
it "returns the hyperbolic cosine of the passed argument" do
@object.send(:cosh!, 0.0).should == 1.0
@object.send(:cosh!, -0.0).should == 1.0
@object.send(:cosh!, 1.5).should be_close(2.35240961524325, TOLERANCE)
@object.send(:cosh!, -2.99).should be_close(9.96798496414416, TOLERANCE)
end
it "raises a TypeError when passed a Complex number" do
lambda { @object.send(:cosh!, Complex(4, 5)) }.should raise_error(TypeError)
end
end