Guard ruby/spec with spec/mspec/tool/wrap_with_guard.rb

Merged: https://github.com/ruby/ruby/pull/4530

spec/ruby/library/matrix/I_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/identity'
 
-describe "Matrix.I" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/identity'
+
+  describe "Matrix.I" do
     it_behaves_like :matrix_identity, :I
+  end
 end

spec/ruby/library/matrix/antisymmetric_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-ruby_version_is "2.6" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  ruby_version_is "2.6" do
     describe "Matrix#antisymmetric?" do
       it "returns true for an antisymmetric Matrix" do
         Matrix[[0, -2, Complex(1, 3)], [2, 0, 5], [-Complex(1, 3), -5, 0]].antisymmetric?.should be_true
@@ -34,4 +36,5 @@ ruby_version_is "2.6" do
         end
       end
     end
+  end
 end

spec/ruby/library/matrix/build_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix.build" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix.build" do
 
     it "returns a Matrix object of the given size" do
       m = Matrix.build(3, 4){1}
@@ -64,10 +66,11 @@ describe "Matrix.build" do
       m.row_size.should == 3
       m.column_size.should == 3
     end
-end
+  end
 
-describe "for a subclass of Matrix" do
+  describe "for a subclass of Matrix" do
     it "returns an instance of that subclass" do
       MatrixSub.build(3){1}.should be_an_instance_of(MatrixSub)
     end
+  end
 end

spec/ruby/library/matrix/clone_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#clone" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#clone" do
     before :each do
       @a = Matrix[[1, 2], [3, 4], [5, 6]]
     end
@@ -22,4 +24,5 @@ describe "Matrix#clone" do
         MatrixSub.ins.clone.should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/coerce_spec.rb

@@ -1,8 +1,11 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#coerce" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#coerce" do
     it "allows the division of integer by a Matrix " do
       (1/Matrix[[0,1],[-1,0]]).should == Matrix[[0,-1],[1,0]]
     end
+  end
 end

spec/ruby/library/matrix/collect_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/collect'
 
-describe "Matrix#collect" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/collect'
+
+  describe "Matrix#collect" do
     it_behaves_like :collect, :collect
+  end
 end

spec/ruby/library/matrix/column_size_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#column_size" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#column_size" do
     it "returns the number of columns" do
       Matrix[ [1,2], [3,4] ].column_size.should == 2
     end
@@ -10,4 +12,5 @@ describe "Matrix#column_size" do
       Matrix[ [], [] ].column_size.should == 0
       Matrix[ ].column_size.should == 0
     end
+  end
 end

spec/ruby/library/matrix/column_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#column" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#column" do
     before :all do
       @m =  Matrix[[1,2,3], [2,3,4]]
     end
@@ -32,4 +34,5 @@ describe "Matrix#column" do
       -> { @m.column(3){ raise } }.should_not raise_error
       -> { @m.column(-4){ raise } }.should_not raise_error
     end
+  end
 end

spec/ruby/library/matrix/column_vector_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix.column_vector" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix.column_vector" do
 
     it "returns a single column Matrix when called with an Array" do
       m = Matrix.column_vector([4,5,6])
@@ -22,4 +24,5 @@ describe "Matrix.column_vector" do
         MatrixSub.column_vector([4,5,6]).should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/column_vectors_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#column_vectors" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#column_vectors" do
 
     before :each do
       @vectors = Matrix[ [1,2], [3,4] ].column_vectors
@@ -23,4 +25,5 @@ describe "Matrix#column_vectors" do
       Matrix[ [] ].column_vectors.should == []
     end
 
+  end
 end

spec/ruby/library/matrix/columns_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix.columns" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix.columns" do
     before :each do
       @a = [1, 2]
       @b = [3, 4]
@@ -39,4 +41,5 @@ describe "Matrix.columns" do
         MatrixSub.columns([[1]]).should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/conj_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/conjugate'
 
-describe "Matrix#conj" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/conjugate'
+
+  describe "Matrix#conj" do
     it_behaves_like :matrix_conjugate, :conj
+  end
 end

spec/ruby/library/matrix/conjugate_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/conjugate'
 
-describe "Matrix#conjugate" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/conjugate'
+
+  describe "Matrix#conjugate" do
     it_behaves_like :matrix_conjugate, :conjugate
+  end
 end

spec/ruby/library/matrix/constructor_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix.[]" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix.[]" do
 
     it "requires arrays as parameters" do
       -> { Matrix[5] }.should raise_error(TypeError)
@@ -62,4 +64,5 @@ describe "Matrix.[]" do
         MatrixSub[ [20,30], [40.5, 9] ].should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/det_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'shared/determinant'
-require 'matrix'
 
-describe "Matrix#det" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/determinant'
+  require 'matrix'
+
+  describe "Matrix#det" do
     it_behaves_like :determinant, :det
+  end
 end

spec/ruby/library/matrix/determinant_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'shared/determinant'
-require 'matrix'
 
-describe "Matrix#determinant" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/determinant'
+  require 'matrix'
+
+  describe "Matrix#determinant" do
     it_behaves_like :determinant, :determinant
+  end
 end

spec/ruby/library/matrix/diagonal_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix.diagonal" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix.diagonal" do
     before :each do
       @m = Matrix.diagonal(10, 11, 12, 13, 14)
     end
@@ -37,9 +39,9 @@ describe "Matrix.diagonal" do
         MatrixSub.diagonal(1).should be_an_instance_of(MatrixSub)
       end
     end
-end
+  end
 
-describe "Matrix.diagonal?" do
+  describe "Matrix.diagonal?" do
     it "returns true for a diagonal Matrix" do
       Matrix.diagonal([1, 2, 3]).diagonal?.should be_true
     end
@@ -69,4 +71,5 @@ describe "Matrix.diagonal?" do
         }.should raise_error(Matrix::ErrDimensionMismatch)
       end
     end
+  end
 end

spec/ruby/library/matrix/divide_spec.rb

@@ -1,9 +1,11 @@
 require_relative '../../spec_helper'
-require_relative 'spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#/" do
+ruby_version_is ""..."3.1" do
+  require_relative 'spec_helper'
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#/" do
     before :each do
       @a = Matrix[ [1, 2], [3, 4] ]
       @b = Matrix[ [4, 5], [6, 7] ]
@@ -51,4 +53,5 @@ describe "Matrix#/" do
       -> { @a / [ [1, 2] ] }.should raise_error(TypeError)
       -> { @a / Object.new }.should raise_error(TypeError)
     end
+  end
 end

spec/ruby/library/matrix/each_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#each" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#each" do
     before :all do
       @m = Matrix[ [1, 2, 3], [4, 5, 6] ]
       @result = (1..6).to_a
@@ -22,9 +24,9 @@ describe "Matrix#each" do
       @m.each {|x| a << x}
       a.should ==  @result
     end
-end
+  end
 
-describe "Matrix#each with an argument" do
+  describe "Matrix#each with an argument" do
     before :all do
       @m = Matrix[ [1, 2, 3, 4], [5, 6, 7, 8] ]
       @t = Matrix[ [1, 2], [3, 4], [5, 6], [7, 8] ]
@@ -71,4 +73,5 @@ describe "Matrix#each with an argument" do
       @m.each(:upper).to_a.should == [1, 2, 3, 4, 6, 7, 8]
       @t.each(:upper).to_a.should == [1, 2, 4]
     end
+  end
 end

spec/ruby/library/matrix/each_with_index_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#each_with_index" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#each_with_index" do
     before :all do
       @m = Matrix[ [1, 2, 3], [4, 5, 6] ]
       @result = [
@@ -29,9 +31,9 @@ describe "Matrix#each_with_index" do
       @m.each_with_index {|x, r, c| a << [x, r, c]}
       a.should == @result
     end
-end
+  end
 
-describe "Matrix#each_with_index with an argument" do
+  describe "Matrix#each_with_index with an argument" do
     before :all do
       @m = Matrix[ [1, 2, 3, 4], [5, 6, 7, 8] ]
       @t = Matrix[ [1, 2], [3, 4], [5, 6], [7, 8] ]
@@ -78,4 +80,5 @@ describe "Matrix#each_with_index with an argument" do
       @m.each_with_index(:upper).to_a.should == [[1, 0, 0], [2, 0, 1], [3, 0, 2], [4, 0, 3], [6, 1, 1], [7, 1, 2], [8, 1, 3]]
       @t.each_with_index(:upper).to_a.should == [[1, 0, 0], [2, 0, 1], [4, 1, 1]]
     end
+  end
 end

spec/ruby/library/matrix/eigenvalue_decomposition/eigenvalue_matrix_spec.rb

@@ -1,9 +1,12 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::EigenvalueDecomposition#eigenvalue_matrix" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::EigenvalueDecomposition#eigenvalue_matrix" do
     it "returns a diagonal matrix with the eigenvalues on the diagonal" do
       Matrix[[14, 16], [-6, -6]].eigensystem.eigenvalue_matrix.should == Matrix[[6, 0],[0, 2]]
       Matrix[[1, 1], [-1, 1]].eigensystem.eigenvalue_matrix.should == Matrix[[Complex(1,1), 0],[0, Complex(1,-1)]]
     end
+  end
 end

spec/ruby/library/matrix/eigenvalue_decomposition/eigenvalues_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::EigenvalueDecomposition#eigenvalues" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::EigenvalueDecomposition#eigenvalues" do
     it "returns an array of complex eigenvalues for a rotation matrix" do
       Matrix[[ 1, 1],
              [-1, 1]].eigensystem.eigenvalues.sort_by{|v| v.imag}.should ==
@@ -19,4 +21,5 @@ describe "Matrix::EigenvalueDecomposition#eigenvalues" do
              [-6, -6]].eigensystem.eigenvalues.sort.map!{|x| x.round(10)}.should ==
       [ 2, 6 ]
     end
+  end
 end

spec/ruby/library/matrix/eigenvalue_decomposition/eigenvector_matrix_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::EigenvalueDecomposition#eigenvector_matrix" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::EigenvalueDecomposition#eigenvector_matrix" do
     it "returns a complex eigenvector matrix given a rotation matrix" do
       # Fix me: should test for linearity, not for equality
       Matrix[[ 1, 1],
@@ -17,4 +19,5 @@ describe "Matrix::EigenvalueDecomposition#eigenvector_matrix" do
       Matrix[[0.7071067811865475, 0.7071067811865475],
              [-0.7071067811865475, 0.7071067811865475]]
     end
+  end
 end

spec/ruby/library/matrix/eigenvalue_decomposition/eigenvectors_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::EigenvalueDecomposition#eigenvectors" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::EigenvalueDecomposition#eigenvectors" do
     it "returns an array of complex eigenvectors for a rotation matrix" do
       # Fix me: should test for linearity, not for equality
       Matrix[[ 1, 1],
@@ -19,4 +21,5 @@ describe "Matrix::EigenvalueDecomposition#eigenvectors" do
         Vector[0.7071067811865475, 0.7071067811865475]
       ]
     end
+  end
 end

spec/ruby/library/matrix/eigenvalue_decomposition/initialize_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::EigenvalueDecomposition#initialize" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::EigenvalueDecomposition#initialize" do
     it "raises an error if argument is not a matrix" do
       -> {
         Matrix::EigenvalueDecomposition.new([[]])
@@ -21,4 +23,5 @@ describe "Matrix::EigenvalueDecomposition#initialize" do
       m = Matrix[ [0,0,0,0,0], [0,0,0,0,1], [0,0,0,1,0], [1,1,0,0,1], [1,0,1,0,1] ]
       Matrix::EigenvalueDecomposition.new(m).should_not == "infinite loop"
     end
+  end
 end

spec/ruby/library/matrix/eigenvalue_decomposition/to_a_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::EigenvalueDecomposition#to_a" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::EigenvalueDecomposition#to_a" do
     before :each do
       @a = Matrix[[14, 16], [-6, -6]]
       @e = Matrix::EigenvalueDecomposition.new(@a)
@@ -15,4 +17,5 @@ describe "Matrix::EigenvalueDecomposition#to_a" do
       v, d, v_inv = @e.to_a
       (v * d * v_inv).map{|e| e.round(10)}.should == @a
     end
+  end
 end

spec/ruby/library/matrix/element_reference_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#[]" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#[]" do
 
     before :all do
       @m = Matrix[[0, 1, 2], [3, 4, 5], [6, 7, 8], [9, 10, 11]]
@@ -20,4 +22,5 @@ describe "Matrix#[]" do
       @m[1,8].should be_nil
     end
 
+  end
 end

spec/ruby/library/matrix/empty_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#empty?" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#empty?" do
     it "returns true when the Matrix is empty" do
       Matrix[ ].empty?.should be_true
       Matrix[ [], [], [] ].empty?.should be_true
@@ -19,9 +21,9 @@ describe "Matrix#empty?" do
         Matrix[ [1, 2] ].empty?(42)
       }.should raise_error(ArgumentError)
     end
-end
+  end
 
-describe "Matrix.empty" do
+  describe "Matrix.empty" do
     it "returns an empty matrix of the requested size" do
       m = Matrix.empty(3, 0)
       m.row_size.should == 3
@@ -59,10 +61,11 @@ describe "Matrix.empty" do
       }.should raise_error(ArgumentError)
     end
 
-end
+  end
 
-describe "for a subclass of Matrix" do
+  describe "for a subclass of Matrix" do
     it "returns an instance of that subclass" do
       MatrixSub.empty(0, 1).should be_an_instance_of(MatrixSub)
     end
+  end
 end

spec/ruby/library/matrix/eql_spec.rb

@@ -1,11 +1,14 @@
 require_relative '../../spec_helper'
-require_relative 'shared/equal_value'
-require 'matrix'
 
-describe "Matrix#eql?" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/equal_value'
+  require 'matrix'
+
+  describe "Matrix#eql?" do
     it_behaves_like :equal, :eql?
 
     it "returns false if some elements are == but not eql?" do
       Matrix[[1, 2],[3, 4]].eql?(Matrix[[1, 2],[3, 4.0]]).should be_false
     end
+  end
 end

spec/ruby/library/matrix/equal_value_spec.rb

@@ -1,11 +1,14 @@
 require_relative '../../spec_helper'
-require_relative 'shared/equal_value'
-require 'matrix'
 
-describe "Matrix#==" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/equal_value'
+  require 'matrix'
+
+  describe "Matrix#==" do
     it_behaves_like :equal, :==
 
     it "returns true if some elements are == but not eql?" do
       Matrix[[1, 2],[3, 4]].should == Matrix[[1, 2],[3, 4.0]]
     end
+  end
 end

spec/ruby/library/matrix/exponent_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#**" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#**" do
 
     describe "given an integer _n_" do
       it "multiples the Matrix by itself _n_ times" do
@@ -61,4 +63,5 @@ describe "Matrix#**" do
         (MatrixSub.ins ** 1).should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/find_index_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#find_index without any argument" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#find_index without any argument" do
     before :all do
       @m = Matrix[ [1, 2, 3, 4], [5, 6, 7, 8] ]
     end
@@ -19,9 +21,9 @@ describe "Matrix#find_index without any argument" do
     it "returns the first index for which the block is true" do
       @m.find_index{|x| x >= 3}.should == [0, 2]
     end
-end
+  end
 
-describe "Matrix#find_index with a subselection argument" do
+  describe "Matrix#find_index with a subselection argument" do
     before :all do
       @tests = [
       [  Matrix[ [1, 2, 3, 4], [5, 6, 7, 8] ], {
@@ -108,9 +110,9 @@ describe "Matrix#find_index with a subselection argument" do
       end
     end
 
-end
+  end
 
-describe "Matrix#find_index with only a generic argument" do
+  describe "Matrix#find_index with only a generic argument" do
     before :all do
       @m = Matrix[ [1, 2, 3, 4], [1, 2, 3, 4] ]
     end
@@ -126,9 +128,9 @@ describe "Matrix#find_index with only a generic argument" do
     it "ignores a block" do
       @m.find_index(4){raise "oups"}.should == [0, 3]
     end
-end
+  end
 
-describe "Matrix#find_index with two arguments" do
+  describe "Matrix#find_index with two arguments" do
     it "raises an ArgumentError for an unrecognized last argument" do
       -> {
         @m.find_index(1, "all"){}
@@ -143,4 +145,5 @@ describe "Matrix#find_index with two arguments" do
         @m.find_index(:diagonal, 1){}
       }.should raise_error(ArgumentError)
     end
+  end
 end

spec/ruby/library/matrix/hash_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#hash" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#hash" do
 
     it "returns an Integer" do
       Matrix[ [1,2] ].hash.should be_an_instance_of(Integer)
@@ -12,4 +14,5 @@ describe "Matrix#hash" do
       Matrix[ *data ].hash.should == Matrix[ *data ].hash
     end
 
+  end
 end

spec/ruby/library/matrix/hermitian_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix.hermitian?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix.hermitian?" do
     it "returns true for a hermitian Matrix" do
       Matrix[[1, 2, Complex(0, 3)], [2, 4, 5], [Complex(0, -3), 5, 6]].hermitian?.should be_true
     end
@@ -31,4 +33,5 @@ describe "Matrix.hermitian?" do
       Matrix[[Complex(1,1)]].hermitian?.should be_false
       Matrix[[Complex(1,0)]].hermitian?.should be_true
     end
+  end
 end

spec/ruby/library/matrix/identity_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/identity'
 
-describe "Matrix.identity" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/identity'
+
+  describe "Matrix.identity" do
     it_behaves_like :matrix_identity, :identity
+  end
 end

spec/ruby/library/matrix/imag_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/imaginary'
 
-describe "Matrix#imag" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/imaginary'
+
+  describe "Matrix#imag" do
     it_behaves_like :matrix_imaginary, :imag
+  end
 end

spec/ruby/library/matrix/imaginary_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/imaginary'
 
-describe "Matrix#imaginary" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/imaginary'
+
+  describe "Matrix#imaginary" do
     it_behaves_like :matrix_imaginary, :imaginary
+  end
 end

spec/ruby/library/matrix/inspect_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#inspect" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#inspect" do
 
     it "returns a stringified representation of the Matrix" do
       Matrix[ [1,2], [2,1] ].inspect.should == "Matrix[[1, 2], [2, 1]]"
@@ -24,4 +26,5 @@ describe "Matrix#inspect" do
         MatrixSub.ins.inspect.should == "MatrixSub[[1, 0], [0, 1]]"
       end
     end
+  end
 end

spec/ruby/library/matrix/inv_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'spec_helper'
-require_relative 'shared/inverse'
 
-describe "Matrix#inv" do
+ruby_version_is ""..."3.1" do
+  require_relative 'spec_helper'
+  require_relative 'shared/inverse'
+
+  describe "Matrix#inv" do
     it_behaves_like :inverse, :inv
+  end
 end

spec/ruby/library/matrix/inverse_from_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#inverse_from" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#inverse_from" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/inverse_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'spec_helper'
-require_relative 'shared/inverse'
 
-describe "Matrix#inverse" do
+ruby_version_is ""..."3.1" do
+  require_relative 'spec_helper'
+  require_relative 'shared/inverse'
+
+  describe "Matrix#inverse" do
     it_behaves_like :inverse, :inverse
+  end
 end

spec/ruby/library/matrix/lower_triangular_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix.lower_triangular?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix.lower_triangular?" do
     it "returns true for a square lower triangular Matrix" do
       Matrix[[1, 0, 0], [1, 2, 0], [1, 2, 3]].lower_triangular?.should be_true
       Matrix.diagonal([1, 2, 3]).lower_triangular?.should be_true
@@ -21,4 +23,5 @@ describe "Matrix.lower_triangular?" do
       Matrix[[0, 1], [0, 0], [0, 0], [0, 0]].lower_triangular?.should be_false
       Matrix[[0, 0, 0, 1], [0, 0, 0, 0]].lower_triangular?.should be_false
     end
+  end
 end

spec/ruby/library/matrix/lup_decomposition/determinant_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::LUPDecomposition#determinant" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::LUPDecomposition#determinant" do
     it "returns the determinant when the matrix is square" do
       a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
       a.lup.determinant.should == 15120 # == a.determinant
@@ -18,4 +20,5 @@ describe "Matrix::LUPDecomposition#determinant" do
         }.should raise_error(Matrix::ErrDimensionMismatch)
       end
     end
+  end
 end

spec/ruby/library/matrix/lup_decomposition/initialize_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::LUPDecomposition#initialize" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::LUPDecomposition#initialize" do
     it "raises an error if argument is not a matrix" do
       -> {
         Matrix::LUPDecomposition.new([[]])
@@ -10,4 +12,5 @@ describe "Matrix::LUPDecomposition#initialize" do
         Matrix::LUPDecomposition.new(42)
       }.should raise_error(TypeError)
     end
+  end
 end

spec/ruby/library/matrix/lup_decomposition/l_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::LUPDecomposition#l" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::LUPDecomposition#l" do
     before :each do
       @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
       @lu = Matrix::LUPDecomposition.new(@a)
@@ -15,4 +17,5 @@ describe "Matrix::LUPDecomposition#l" do
     it "returns a lower triangular matrix" do
       @l.lower_triangular?.should be_true
     end
+  end
 end

spec/ruby/library/matrix/lup_decomposition/p_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::LUPDecomposition#p" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::LUPDecomposition#p" do
     before :each do
       @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
       @lu = Matrix::LUPDecomposition.new(@a)
@@ -15,4 +17,5 @@ describe "Matrix::LUPDecomposition#p" do
     it "returns a permutation matrix" do
       @p.permutation?.should be_true
     end
+  end
 end

spec/ruby/library/matrix/lup_decomposition/solve_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::LUPDecomposition#solve" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::LUPDecomposition#solve" do
     describe "for rectangular matrices" do
       it "raises an error for singular matrices" do
         a = Matrix[[1, 2, 3], [1, 3, 5], [2, 5, 8]]
@@ -50,4 +52,5 @@ describe "Matrix::LUPDecomposition#solve" do
         end
       end
     end
+  end
 end

spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::LUPDecomposition#to_a" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::LUPDecomposition#to_a" do
     before :each do
       @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
       @lu = Matrix::LUPDecomposition.new(@a)
@@ -30,4 +32,5 @@ describe "Matrix::LUPDecomposition#to_a" do
     end
 
     it "has other properties implied by the specs of #l, #u and #p"
+  end
 end

spec/ruby/library/matrix/lup_decomposition/u_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::LUPDecomposition#u" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::LUPDecomposition#u" do
     before :each do
       @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
       @lu = Matrix::LUPDecomposition.new(@a)
@@ -15,4 +17,5 @@ describe "Matrix::LUPDecomposition#u" do
     it "returns an upper triangular matrix" do
       @u.upper_triangular?.should be_true
     end
+  end
 end

spec/ruby/library/matrix/map_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/collect'
 
-describe "Matrix#map" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/collect'
+
+  describe "Matrix#map" do
     it_behaves_like :collect, :map
+  end
 end

spec/ruby/library/matrix/minor_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#minor" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#minor" do
     before :each do
       @matrix = Matrix[ [1,2], [3,4], [5,6] ]
     end
@@ -82,4 +84,5 @@ describe "Matrix#minor" do
         MatrixSub.ins.minor(0, 1, 0, 1).should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/minus_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#-" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#-" do
     before :each do
       @a = Matrix[ [1, 2], [3, 4] ]
       @b = Matrix[ [4, 5], [6, 7] ]
@@ -39,4 +41,5 @@ describe "Matrix#-" do
         (m-m).should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/multiply_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#*" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#*" do
     before :each do
       @a = Matrix[ [1, 2], [3, 4] ]
       @b = Matrix[ [4, 5], [6, 7] ]
@@ -65,4 +67,5 @@ describe "Matrix#*" do
         (m*1).should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/new_spec.rb

@@ -1,8 +1,11 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix.new" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix.new" do
     it "is private" do
       Matrix.should have_private_method(:new)
     end
+  end
 end

spec/ruby/library/matrix/normal_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix.normal?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix.normal?" do
     # it "returns false for non normal matrices" do
     #   Matrix[[0, 1], [1, 2]].should_not.normal?
     # end
@@ -23,4 +25,5 @@ describe "Matrix.normal?" do
         }.should raise_error(Matrix::ErrDimensionMismatch)
       end
     end
+  end
 end

spec/ruby/library/matrix/orthogonal_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix.orthogonal?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix.orthogonal?" do
     it "returns false for non orthogonal matrices" do
       Matrix[[0, 1], [1, 2]].should_not.orthogonal?
       Matrix[[1, 1, 0], [0, 1, 1], [1, 0, 1]].should_not.orthogonal?
@@ -23,4 +25,5 @@ describe "Matrix.orthogonal?" do
         }.should raise_error(Matrix::ErrDimensionMismatch)
       end
     end
+  end
 end

spec/ruby/library/matrix/permutation_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#permutation?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#permutation?" do
     it "returns true for a permutation Matrix" do
       Matrix[[0, 1, 0], [0, 0, 1], [1, 0, 0]].permutation?.should be_true
     end
@@ -29,4 +31,5 @@ describe "Matrix#permutation?" do
         }.should raise_error(Matrix::ErrDimensionMismatch)
       end
     end
+  end
 end

spec/ruby/library/matrix/plus_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#+" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#+" do
     before :each do
       @a = Matrix[ [1,2], [3,4] ]
       @b = Matrix[ [4,5], [6,7] ]
@@ -39,4 +41,5 @@ describe "Matrix#+" do
         (m+m).should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/rank_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#rank" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#rank" do
     it "returns the rank of the Matrix" do
       Matrix[ [7,6], [3,9] ].rank.should == 2
     end
@@ -16,4 +18,5 @@ describe "Matrix#rank" do
       Matrix[[0,0],[0,0],[1,0]].rank.should == 1
       Matrix[[0,1],[0,0],[1,0]].rank.should == 2
     end
+  end
 end

spec/ruby/library/matrix/real_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#real?" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#real?" do
     it "returns true for matrices with all real entries" do
       Matrix[ [1,   2], [3, 4] ].real?.should be_true
       Matrix[ [1.9, 2], [3, 4] ].real?.should be_true
@@ -22,9 +24,9 @@ describe "Matrix#real?" do
         Matrix[ [Complex(1,0), 2], [3, 4] ].real?.should be_false
       end
     end
-end
+  end
 
-describe "Matrix#real" do
+  describe "Matrix#real" do
     it "returns a matrix with the real part of the elements of the receiver" do
       Matrix[ [1,   2], [3, 4] ].real.should == Matrix[ [1,   2], [3, 4] ]
       Matrix[ [1.9, Complex(1,1)], [Complex(-0.42, 0), 4] ].real.should == Matrix[ [1.9, 1], [-0.42, 4] ]
@@ -40,4 +42,5 @@ describe "Matrix#real" do
         MatrixSub.ins.real.should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/rect_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/rectangular'
 
-describe "Matrix#rect" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/rectangular'
+
+  describe "Matrix#rect" do
     it_behaves_like :matrix_rectangular, :rect
+  end
 end

spec/ruby/library/matrix/rectangular_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/rectangular'
 
-describe "Matrix#rectangular" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/rectangular'
+
+  describe "Matrix#rectangular" do
     it_behaves_like :matrix_rectangular, :rectangular
+  end
 end

spec/ruby/library/matrix/regular_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#regular?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#regular?" do
 
     it "returns false for singular matrices" do
       m = Matrix[ [1,2,3], [3,4,3], [0,0,0] ]
@@ -28,4 +30,5 @@ describe "Matrix#regular?" do
         Matrix.empty(3,0).regular?
       }.should raise_error(Matrix::ErrDimensionMismatch)
     end
+  end
 end

spec/ruby/library/matrix/round_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix#round" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix#round" do
     it "returns a matrix with all entries rounded" do
       Matrix[ [1,   2.34], [5.67, 8] ].round.should == Matrix[ [1, 2], [6, 8] ]
       Matrix[ [1,   2.34], [5.67, 8] ].round(1).should == Matrix[ [1, 2.3], [5.7, 8] ]
@@ -18,4 +20,5 @@ describe "Matrix#round" do
         MatrixSub.ins.round.should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/row_size_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#row_size" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#row_size" do
     it "returns the number rows" do
       Matrix[ [1,2], [3, 4], [5, 6] ].row_size.should == 3
     end
@@ -10,4 +12,5 @@ describe "Matrix#row_size" do
       Matrix[ [], [], [] ].row_size.should == 3
     end
 
+  end
 end

spec/ruby/library/matrix/row_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#row" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#row" do
     before :all do
       @m = Matrix[ [1, 2], [2, 3], [3, 4] ]
     end
@@ -33,4 +35,5 @@ describe "Matrix#row" do
       -> { @m.row(3){ raise } }.should_not raise_error
       -> { @m.row(-4){ raise } }.should_not raise_error
     end
+  end
 end

spec/ruby/library/matrix/row_vector_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix.row_vector" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix.row_vector" do
 
     it "returns a Matrix" do
       Matrix.row_vector([]).should be_an_instance_of(Matrix)
@@ -21,4 +23,5 @@ describe "Matrix.row_vector" do
         MatrixSub.row_vector([1]).should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/row_vectors_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#row_vectors" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#row_vectors" do
 
     before :each do
       @vectors = Matrix[ [1,2], [3,4] ].row_vectors
@@ -23,4 +25,5 @@ describe "Matrix#row_vectors" do
       Matrix[].row_vectors.should == []
       Matrix[ [] ].row_vectors.should == [ Vector[] ]
     end
+  end
 end

spec/ruby/library/matrix/rows_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix.rows" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix.rows" do
     before :each do
       @a = [1, 2]
       @b = [3, 4]
@@ -38,4 +40,5 @@ describe "Matrix.rows" do
         MatrixSub.rows([[0, 1], [0, 1]]).should be_an_instance_of(MatrixSub)
       end
     end
+  end
 end

spec/ruby/library/matrix/scalar/Fail_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::Scalar#Fail" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::Scalar#Fail" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/scalar/Raise_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::Scalar#Raise" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::Scalar#Raise" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/scalar/divide_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::Scalar#/" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::Scalar#/" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/scalar/exponent_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::Scalar#**" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::Scalar#**" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/scalar/included_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::Scalar.included" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::Scalar.included" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/scalar/initialize_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::Scalar#initialize" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::Scalar#initialize" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/scalar/minus_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::Scalar#-" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::Scalar#-" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/scalar/multiply_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::Scalar#*" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::Scalar#*" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/scalar/plus_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::Scalar#+" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::Scalar#+" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/scalar_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix.scalar" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix.scalar" do
 
     before :each do
       @side = 3
@@ -64,4 +66,5 @@ describe "Matrix.scalar" do
         end
       end
     end
+  end
 end

spec/ruby/library/matrix/singular_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#singular?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#singular?" do
     it "returns true for singular matrices" do
       m = Matrix[ [1,2,3], [3,4,3], [0,0,0] ]
       m.singular?.should be_true
@@ -28,4 +30,5 @@ describe "Matrix#singular?" do
       }.should raise_error(Matrix::ErrDimensionMismatch)
     end
 
+  end
 end

spec/ruby/library/matrix/square_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#square?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#square?" do
 
     it "returns true when the Matrix is square" do
       Matrix[ [1,2], [2,4] ].square?.should be_true
@@ -25,4 +27,5 @@ describe "Matrix#square?" do
       Matrix[[]].square?.should be_false
       Matrix.columns([[]]).square?.should be_false
     end
+  end
 end

spec/ruby/library/matrix/symmetric_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix.symmetric?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix.symmetric?" do
     it "returns true for a symmetric Matrix" do
       Matrix[[1, 2, Complex(0, 3)], [2, 4, 5], [Complex(0, 3), 5, 6]].symmetric?.should be_true
     end
@@ -26,4 +28,5 @@ describe "Matrix.symmetric?" do
         }.should raise_error(Matrix::ErrDimensionMismatch)
       end
     end
+  end
 end

spec/ruby/library/matrix/t_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/transpose'
 
-describe "Matrix#transpose" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/transpose'
+
+  describe "Matrix#transpose" do
     it_behaves_like :matrix_transpose, :t
+  end
 end

spec/ruby/library/matrix/to_a_spec.rb

@@ -1,11 +1,14 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#to_a" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#to_a" do
     it "returns the array of arrays that describe the rows of the matrix" do
       Matrix[].to_a.should == []
       Matrix[[]].to_a.should == [[]]
       Matrix[[1]].to_a.should == [[1]]
       Matrix[[1, 2], [3, 4]].to_a.should == [[1, 2],[3, 4]]
     end
+  end
 end

spec/ruby/library/matrix/to_s_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix#to_s" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix#to_s" do
     it "needs to be reviewed for spec completeness"
+  end
 end

spec/ruby/library/matrix/tr_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'shared/trace'
-require 'matrix'
 
-describe "Matrix#tr" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/trace'
+  require 'matrix'
+
+  describe "Matrix#tr" do
     it_behaves_like :trace, :tr
+  end
 end

spec/ruby/library/matrix/trace_spec.rb

@@ -1,7 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'shared/trace'
-require 'matrix'
 
-describe "Matrix#trace" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/trace'
+  require 'matrix'
+
+  describe "Matrix#trace" do
     it_behaves_like :trace, :trace
+  end
 end

spec/ruby/library/matrix/transpose_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/transpose'
 
-describe "Matrix#transpose" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/transpose'
+
+  describe "Matrix#transpose" do
     it_behaves_like :matrix_transpose, :transpose
+  end
 end

spec/ruby/library/matrix/unit_spec.rb

@@ -1,6 +1,9 @@
 require_relative '../../spec_helper'
-require_relative 'shared/identity'
 
-describe "Matrix.unit" do
+ruby_version_is ""..."3.1" do
+  require_relative 'shared/identity'
+
+  describe "Matrix.unit" do
     it_behaves_like :matrix_identity, :unit
+  end
 end

spec/ruby/library/matrix/unitary_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix.unitary?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix.unitary?" do
     it "returns false for non unitary matrices" do
       Matrix[[0, 1], [1, 2]].should_not.unitary?
       Matrix[[0, Complex(0, 2)], [Complex(0, 2), 0]].should_not.unitary?
@@ -30,4 +32,5 @@ describe "Matrix.unitary?" do
         }.should raise_error(Matrix::ErrDimensionMismatch)
       end
     end
+  end
 end

spec/ruby/library/matrix/upper_triangular_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix.upper_triangular?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix.upper_triangular?" do
     it "returns true for an upper triangular Matrix" do
       Matrix[[1, 2, 3], [0, 2, 3], [0, 0, 3]].upper_triangular?.should be_true
       Matrix.diagonal([1, 2, 3]).upper_triangular?.should be_true
@@ -21,4 +23,5 @@ describe "Matrix.upper_triangular?" do
       Matrix.empty(0,3).upper_triangular?.should be_true
       Matrix.empty(0,0).upper_triangular?.should be_true
     end
+  end
 end

spec/ruby/library/matrix/vector/cross_product_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Vector#cross_product" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Vector#cross_product" do
     it "returns the cross product of a vector" do
       Vector[1, 2, 3].cross_product(Vector[0, -4, 5]).should == Vector[22, -5, -4]
     end
@@ -11,4 +13,5 @@ describe "Vector#cross_product" do
         Vector[1, 2, 3].cross_product(Vector[0, -4])
       }.should raise_error(Vector::ErrDimensionMismatch)
     end
+  end
 end

spec/ruby/library/matrix/vector/each2_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Vector.each2" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Vector.each2" do
     before :all do
       @v = Vector[1, 2, 3]
       @v2 = Vector[4, 5, 6]
@@ -46,4 +48,5 @@ describe "Vector.each2" do
         enum.to_a.should == [[1, 4], [2, 5], [3, 6]]
       end
     end
+  end
 end

spec/ruby/library/matrix/vector/eql_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Vector#eql?" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Vector#eql?" do
     before do
       @vector = Vector[1, 2, 3, 4, 5]
     end
@@ -13,4 +15,5 @@ describe "Vector#eql?" do
     it "returns false when there are a pair corresponding elements which are not equal in the sense of Kernel#eql?" do
       @vector.eql?(Vector[1, 2, 3, 4, 5.0]).should be_false
     end
+  end
 end

spec/ruby/library/matrix/vector/inner_product_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Vector#inner_product" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Vector#inner_product" do
     it "returns the inner product of a vector" do
       Vector[1, 2, 3].inner_product(Vector[0, -4, 5]).should == 7
     end
@@ -19,4 +21,5 @@ describe "Vector#inner_product" do
     it "uses the conjugate of its argument" do
       Vector[Complex(1,2)].inner_product(Vector[Complex(3,4)]).should == Complex(11, 2)
     end
+  end
 end

spec/ruby/library/matrix/vector/normalize_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Vector#normalize" do
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Vector#normalize" do
     it "returns a normalized copy of the vector" do
       x = 0.2672612419124244
       Vector[1, 2, 3].normalize.should == Vector[x, x * 2, x * 3]
@@ -15,4 +17,5 @@ describe "Vector#normalize" do
         Vector[0, 0, 0].normalize
       }.should raise_error(Vector::ZeroVectorError)
     end
+  end
 end

spec/ruby/library/matrix/zero_spec.rb

@@ -1,8 +1,10 @@
 require_relative '../../spec_helper'
-require_relative 'fixtures/classes'
-require 'matrix'
 
-describe "Matrix.zero" do
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
+
+  describe "Matrix.zero" do
     it "returns an object of type Matrix" do
       Matrix.zero(3).should be_kind_of(Matrix)
     end
@@ -33,9 +35,9 @@ describe "Matrix.zero" do
         MatrixSub.zero(3).should be_an_instance_of(MatrixSub)
       end
     end
-end
+  end
 
-describe "Matrix.zero?" do
+  describe "Matrix.zero?" do
     it "returns true for empty matrices" do
       Matrix.empty.should.zero?
       Matrix.empty(3,0).should.zero?
@@ -49,4 +51,5 @@ describe "Matrix.zero?" do
     it "returns false for matrices with non zero entries" do
       Matrix[[1]].should_not.zero?
     end
+  end
 end

spec/ruby/library/net/FTPError_spec.rb

@@ -1,8 +1,11 @@
 require_relative '../../spec_helper'
-require 'net/ftp'
 
-describe "Net::FTPError" do
+ruby_version_is ""..."3.1" do
+  require 'net/ftp'
+
+  describe "Net::FTPError" do
     it "is an Exception" do
       Net::FTPError.should < Exception
     end
+  end
 end

spec/ruby/library/net/FTPPermError_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'net/ftp'
 
-describe "Net::FTPPermError" do
+ruby_version_is ""..."3.1" do
+  require 'net/ftp'
+
+  describe "Net::FTPPermError" do
     it "is an Exception" do
       Net::FTPPermError.should < Exception
     end
@@ -9,4 +11,5 @@ describe "Net::FTPPermError" do
     it "is a subclass of Net::FTPError" do
       Net::FTPPermError.should < Net::FTPError
     end
+  end
 end

spec/ruby/library/net/FTPProtoError_spec.rb

@@ -1,7 +1,9 @@
 require_relative '../../spec_helper'
-require 'net/ftp'
 
-describe "Net::FTPProtoError" do
+ruby_version_is ""..."3.1" do
+  require 'net/ftp'
+
+  describe "Net::FTPProtoError" do
     it "is an Exception" do
       Net::FTPProtoError.should < Exception
     end
@@ -9,4 +11,5 @@ describe "Net::FTPProtoError" do
     it "is a subclass of Net::FTPError" do
       Net::FTPPermError.should < Net::FTPError
     end
+  end
 end