1 files changed, 39 insertions, 36 deletions
diff --git a/spec/ruby/library/matrix/zero_spec.rb b/spec/ruby/library/matrix/zero_spec.rb
index 68e8567c26..80162a03d0 100644
--- a/spec/ruby/library/matrix/zero_spec.rb
+++ b/spec/ruby/library/matrix/zero_spec.rb
@@ -1,52 +1,55 @@
 require_relative '../../spec_helper'
-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
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
 
-  it "creates a n x n matrix" do
-    m3 = Matrix.zero(3)
-    m3.row_size.should == 3
-    m3.column_size.should == 3
+  describe "Matrix.zero" do
+    it "returns an object of type Matrix" do
+      Matrix.zero(3).should be_kind_of(Matrix)
+    end
 
-    m8 = Matrix.zero(8)
-    m8.row_size.should == 8
-    m8.column_size.should == 8
-  end
+    it "creates a n x n matrix" do
+      m3 = Matrix.zero(3)
+      m3.row_size.should == 3
+      m3.column_size.should == 3
 
-  it "initializes all cells to 0" do
-    size = 10
-    m = Matrix.zero(size)
+      m8 = Matrix.zero(8)
+      m8.row_size.should == 8
+      m8.column_size.should == 8
+    end
 
-    (0...size).each do |i|
-      (0...size).each do |j|
-        m[i, j].should == 0
+    it "initializes all cells to 0" do
+      size = 10
+      m = Matrix.zero(size)
+
+      (0...size).each do |i|
+        (0...size).each do |j|
+          m[i, j].should == 0
+        end
       end
     end
-  end
 
-  describe "for a subclass of Matrix" do
-    it "returns an instance of that subclass" do
-      MatrixSub.zero(3).should be_an_instance_of(MatrixSub)
+    describe "for a subclass of Matrix" do
+      it "returns an instance of that subclass" do
+        MatrixSub.zero(3).should be_an_instance_of(MatrixSub)
+      end
     end
   end
-end
 
-describe "Matrix.zero?" do
-  it "returns true for empty matrices" do
-    Matrix.empty.should.zero?
-    Matrix.empty(3,0).should.zero?
-    Matrix.empty(0,3).should.zero?
-  end
+  describe "Matrix.zero?" do
+    it "returns true for empty matrices" do
+      Matrix.empty.should.zero?
+      Matrix.empty(3,0).should.zero?
+      Matrix.empty(0,3).should.zero?
+    end
 
-  it "returns true for matrices with zero entries" do
-    Matrix.zero(2,3).should.zero?
-  end
+    it "returns true for matrices with zero entries" do
+      Matrix.zero(2,3).should.zero?
+    end
 
-  it "returns false for matrices with non zero entries" do
-    Matrix[[1]].should_not.zero?
+    it "returns false for matrices with non zero entries" do
+      Matrix[[1]].should_not.zero?
+    end
   end
 end