diff options
Diffstat (limited to 'spec/ruby/library/cmath/math/shared/exp.rb')
| -rw-r--r-- | spec/ruby/library/cmath/math/shared/exp.rb | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/spec/ruby/library/cmath/math/shared/exp.rb b/spec/ruby/library/cmath/math/shared/exp.rb new file mode 100644 index 0000000000..6715ac63d3 --- /dev/null +++ b/spec/ruby/library/cmath/math/shared/exp.rb @@ -0,0 +1,28 @@ +require_relative '../fixtures/classes' + +describe :complex_math_exp, shared: true do + it "returns the base-e exponential of the passed argument" do + @object.send(:exp, 0.0).should == 1.0 + @object.send(:exp, -0.0).should == 1.0 + @object.send(:exp, -1.8).should be_close(0.165298888221587, TOLERANCE) + @object.send(:exp, 1.25).should be_close(3.49034295746184, TOLERANCE) + end + + it "returns the base-e exponential for Complex numbers" do + @object.send(:exp, Complex(0, 0)).should == Complex(1.0, 0.0) + @object.send(:exp, Complex(1, 3)).should be_close(Complex(-2.69107861381979, 0.383603953541131), TOLERANCE) + end +end + +describe :complex_math_exp_bang, shared: true do + it "returns the base-e exponential of the passed argument" do + @object.send(:exp!, 0.0).should == 1.0 + @object.send(:exp!, -0.0).should == 1.0 + @object.send(:exp!, -1.8).should be_close(0.165298888221587, TOLERANCE) + @object.send(:exp!, 1.25).should be_close(3.49034295746184, TOLERANCE) + end + + it "raises a TypeError when passed a Complex number" do + -> { @object.send(:exp!, Complex(1, 3)) }.should raise_error(TypeError) + end +end |