diff options
| author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
|---|---|---|
| committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
| commit | 1d15d5f08032acf1b7bceacbb450d617ff6e0931 (patch) | |
| tree | a3785a79899302bc149e4a6e72f624ac27dc1f10 /spec/ruby/library/matrix/minus_spec.rb | |
| parent | 75bfc6440d595bf339007f4fb280fd4d743e89c1 (diff) | |
Move spec/rubyspec to spec/ruby for consistency
* Other ruby implementations use the spec/ruby directory.
[Misc #13792] [ruby-core:82287]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/ruby/library/matrix/minus_spec.rb')
| -rw-r--r-- | spec/ruby/library/matrix/minus_spec.rb | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/minus_spec.rb b/spec/ruby/library/matrix/minus_spec.rb new file mode 100644 index 0000000000..fe2d716882 --- /dev/null +++ b/spec/ruby/library/matrix/minus_spec.rb @@ -0,0 +1,42 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) +require 'matrix' + +describe "Matrix#-" do + before :each do + @a = Matrix[ [1, 2], [3, 4] ] + @b = Matrix[ [4, 5], [6, 7] ] + end + + it "returns the result of subtracting the corresponding elements of other from self" do + (@a - @b).should == Matrix[ [-3,-3], [-3,-3] ] + end + + it "returns an instance of Matrix" do + (@a - @b).should be_kind_of(Matrix) + end + + it "raises a Matrix::ErrDimensionMismatch if the matrices are different sizes" do + lambda { @a - Matrix[ [1] ] }.should raise_error(Matrix::ErrDimensionMismatch) + end + + it "raises a ExceptionForMatrix::ErrOperationNotDefined if other is a Numeric Type" do + lambda { @a - 2 }.should raise_error(Matrix::ErrOperationNotDefined) + lambda { @a - 1.2 }.should raise_error(Matrix::ErrOperationNotDefined) + lambda { @a - bignum_value }.should raise_error(Matrix::ErrOperationNotDefined) + end + + it "raises a TypeError if other is of wrong type" do + lambda { @a - nil }.should raise_error(TypeError) + lambda { @a - "a" }.should raise_error(TypeError) + lambda { @a - [ [1, 2] ] }.should raise_error(TypeError) + lambda { @a - Object.new }.should raise_error(TypeError) + end + + describe "for a subclass of Matrix" do + it "returns an instance of that subclass" do + m = MatrixSub.ins + (m-m).should be_an_instance_of(MatrixSub) + end + end +end |