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| 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 | a3736e97a6ca517c2cd7d3d93a8f2ef86e39e5b5 (patch) | |
| tree | 9eef7f720314ebaff56845a74e203770e62284e4 /spec/rubyspec/library/matrix/shared/trace.rb | |
| parent | 52df1d0d3370919711c0577aaa42d1a864709885 (diff) | |
| download | ruby-a3736e97a6ca517c2cd7d3d93a8f2ef86e39e5b5.tar.gz | |
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/matrix/shared/trace.rb')
| -rw-r--r-- | spec/rubyspec/library/matrix/shared/trace.rb | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/spec/rubyspec/library/matrix/shared/trace.rb b/spec/rubyspec/library/matrix/shared/trace.rb new file mode 100644 index 0000000000..2a42839f5d --- /dev/null +++ b/spec/rubyspec/library/matrix/shared/trace.rb @@ -0,0 +1,12 @@ +require 'matrix' + +describe :trace, shared: true do + it "returns the sum of diagonal elements in a square Matrix" do + Matrix[[7,6], [3,9]].trace.should == 16 + end + + it "returns the sum of diagonal elements in a rectangular Matrix" do + lambda{ Matrix[[1,2,3], [4,5,6]].trace}.should raise_error(Matrix::ErrDimensionMismatch) + end + +end |