diff options
| author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-05-07 12:04:49 +0000 |
|---|---|---|
| committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-05-07 12:04:49 +0000 |
| commit | 95e8c48dd3348503a8c7db5d0498894a1b676395 (patch) | |
| tree | 9eef7f720314ebaff56845a74e203770e62284e4 /spec/rubyspec/library/mathn/float/exponent_spec.rb | |
| parent | ed7d803500de38186c74bce94d233e85ef51e503 (diff) | |
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
Diffstat (limited to 'spec/rubyspec/library/mathn/float/exponent_spec.rb')
| -rw-r--r-- | spec/rubyspec/library/mathn/float/exponent_spec.rb | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/spec/rubyspec/library/mathn/float/exponent_spec.rb b/spec/rubyspec/library/mathn/float/exponent_spec.rb new file mode 100644 index 0000000000..55af43ce5b --- /dev/null +++ b/spec/rubyspec/library/mathn/float/exponent_spec.rb @@ -0,0 +1,17 @@ +require File.expand_path('../../../../spec_helper', __FILE__) + +ruby_version_is ''...'2.5' do + require 'mathn' + + describe "Float#**" do + it "returns self raised to other (positive) power" do + (2.0 ** 4).should == 16.0 + (2.0 ** 1.2).should be_close(2.2973967, TOLERANCE) + end + + it "returns a complex number when negative and raised to a fractional power" do + ((-8.0) ** (1/3)).should be_close(Complex(1, 1.73205), TOLERANCE) + ((-8.0) ** (1.0/3)).should be_close(Complex(1, 1.73205), TOLERANCE) + end + end +end |