1 files changed, 18 insertions, 15 deletions
diff --git a/spec/ruby/library/matrix/row_vector_spec.rb b/spec/ruby/library/matrix/row_vector_spec.rb
index 341437ee05..4c97d6013a 100644
--- a/spec/ruby/library/matrix/row_vector_spec.rb
+++ b/spec/ruby/library/matrix/row_vector_spec.rb
@@ -1,24 +1,27 @@
 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'
 
-  it "returns a Matrix" do
-    Matrix.row_vector([]).should be_an_instance_of(Matrix)
-  end
+  describe "Matrix.row_vector" do
 
-  it "returns a single-row Matrix with the specified values" do
-    Matrix.row_vector([1,2]).should == Matrix[ [1,2] ]
-  end
+    it "returns a Matrix" do
+      Matrix.row_vector([]).should be_an_instance_of(Matrix)
+    end
 
-  it "returns a 1x0 matrix when called with an empty Array" do
-    Matrix.row_vector([]).should == Matrix[ [] ]
-  end
+    it "returns a single-row Matrix with the specified values" do
+      Matrix.row_vector([1,2]).should == Matrix[ [1,2] ]
+    end
+
+    it "returns a 1x0 matrix when called with an empty Array" do
+      Matrix.row_vector([]).should == Matrix[ [] ]
+    end
 
-  describe "for a subclass of Matrix" do
-    it "returns an instance of that subclass" do
-      MatrixSub.row_vector([1]).should be_an_instance_of(MatrixSub)
+    describe "for a subclass of Matrix" do
+      it "returns an instance of that subclass" do
+        MatrixSub.row_vector([1]).should be_an_instance_of(MatrixSub)
+      end
     end
   end
 end