diff options
Diffstat (limited to 'spec/ruby/library/cmath/math/shared/tan.rb')
-rw-r--r-- | spec/ruby/library/cmath/math/shared/tan.rb | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/spec/ruby/library/cmath/math/shared/tan.rb b/spec/ruby/library/cmath/math/shared/tan.rb new file mode 100644 index 0000000000..9022c84fc9 --- /dev/null +++ b/spec/ruby/library/cmath/math/shared/tan.rb @@ -0,0 +1,28 @@ +require_relative '../fixtures/classes' + +describe :complex_math_tan, shared: true do + it "returns the tangent of the argument" do + @object.send(:tan, 0.0).should == 0.0 + @object.send(:tan, -0.0).should == -0.0 + @object.send(:tan, 4.22).should be_close(1.86406937682395, TOLERANCE) + @object.send(:tan, -9.65).should be_close(-0.229109052606441, TOLERANCE) + end + + it "returns the tangent for Complex numbers" do + @object.send(:tan, Complex(0, CMath::PI)).should be_close(Complex(0.0, 0.99627207622075), TOLERANCE) + @object.send(:tan, Complex(3, 4)).should be_close(Complex(-0.000187346204629452, 0.999355987381473), TOLERANCE) + end +end + +describe :complex_math_tan_bang, shared: true do + it "returns the tangent of the argument" do + @object.send(:tan!, 0.0).should == 0.0 + @object.send(:tan!, -0.0).should == -0.0 + @object.send(:tan!, 4.22).should be_close(1.86406937682395, TOLERANCE) + @object.send(:tan!, -9.65).should be_close(-0.229109052606441, TOLERANCE) + end + + it "raises a TypeError when passed a Complex number" do + -> { @object.send(:tan!, Complex(4, 5)) }.should raise_error(TypeError) + end +end |