diff options
Diffstat (limited to 'spec/ruby/library/complex/math/shared/cosh.rb')
| -rw-r--r-- | spec/ruby/library/complex/math/shared/cosh.rb | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/spec/ruby/library/complex/math/shared/cosh.rb b/spec/ruby/library/complex/math/shared/cosh.rb new file mode 100644 index 0000000000..a5f98e4e83 --- /dev/null +++ b/spec/ruby/library/complex/math/shared/cosh.rb @@ -0,0 +1,28 @@ +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 |