1 files changed, 55 insertions, 52 deletions
diff --git a/spec/ruby/library/matrix/empty_spec.rb b/spec/ruby/library/matrix/empty_spec.rb
index 5f294711db..0b5d5ffe0f 100644
--- a/spec/ruby/library/matrix/empty_spec.rb
+++ b/spec/ruby/library/matrix/empty_spec.rb
@@ -1,68 +1,71 @@
 require_relative '../../spec_helper'
-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
-    Matrix[ [], [], [] ].transpose.empty?.should be_true
-  end
+ruby_version_is ""..."3.1" do
+  require_relative 'fixtures/classes'
+  require 'matrix'
 
-  it "returns false when the Matrix has elements" do
-    Matrix[ [1, 2] ].empty?.should be_false
-    Matrix[ [1], [2] ].empty?.should be_false
-  end
+  describe "Matrix#empty?" do
+    it "returns true when the Matrix is empty" do
+      Matrix[ ].empty?.should be_true
+      Matrix[ [], [], [] ].empty?.should be_true
+      Matrix[ [], [], [] ].transpose.empty?.should be_true
+    end
+
+    it "returns false when the Matrix has elements" do
+      Matrix[ [1, 2] ].empty?.should be_false
+      Matrix[ [1], [2] ].empty?.should be_false
+    end
 
-  it "doesn't accept any parameter" do
-    ->{
-      Matrix[ [1, 2] ].empty?(42)
-    }.should raise_error(ArgumentError)
+    it "doesn't accept any parameter" do
+      ->{
+        Matrix[ [1, 2] ].empty?(42)
+      }.should raise_error(ArgumentError)
+    end
   end
-end
 
-describe "Matrix.empty" do
-  it "returns an empty matrix of the requested size" do
-    m = Matrix.empty(3, 0)
-    m.row_size.should == 3
-    m.column_size.should == 0
+  describe "Matrix.empty" do
+    it "returns an empty matrix of the requested size" do
+      m = Matrix.empty(3, 0)
+      m.row_size.should == 3
+      m.column_size.should == 0
 
-    m = Matrix.empty(0, 3)
-    m.row_size.should == 0
-    m.column_size.should == 3
-  end
+      m = Matrix.empty(0, 3)
+      m.row_size.should == 0
+      m.column_size.should == 3
+    end
 
-  it "has arguments defaulting to 0" do
-    Matrix.empty.should == Matrix.empty(0, 0)
-    Matrix.empty(42).should == Matrix.empty(42, 0)
-  end
+    it "has arguments defaulting to 0" do
+      Matrix.empty.should == Matrix.empty(0, 0)
+      Matrix.empty(42).should == Matrix.empty(42, 0)
+    end
 
-  it "does not accept more than two parameters" do
-    ->{
-      Matrix.empty(1, 2, 3)
-    }.should raise_error(ArgumentError)
-  end
+    it "does not accept more than two parameters" do
+      ->{
+        Matrix.empty(1, 2, 3)
+      }.should raise_error(ArgumentError)
+    end
 
-  it "raises an error if both dimensions are > 0" do
-    ->{
-      Matrix.empty(1, 2)
-    }.should raise_error(ArgumentError)
-  end
+    it "raises an error if both dimensions are > 0" do
+      ->{
+        Matrix.empty(1, 2)
+      }.should raise_error(ArgumentError)
+    end
 
-  it "raises an error if any dimension is < 0" do
-    ->{
-      Matrix.empty(-2, 0)
-    }.should raise_error(ArgumentError)
+    it "raises an error if any dimension is < 0" do
+      ->{
+        Matrix.empty(-2, 0)
+      }.should raise_error(ArgumentError)
 
-    ->{
-      Matrix.empty(0, -2)
-    }.should raise_error(ArgumentError)
-  end
+      ->{
+        Matrix.empty(0, -2)
+      }.should raise_error(ArgumentError)
+    end
 
-end
+  end
 
-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)
+  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