1 files changed, 15 insertions, 12 deletions
diff --git a/spec/ruby/library/matrix/eigenvalue_decomposition/to_a_spec.rb b/spec/ruby/library/matrix/eigenvalue_decomposition/to_a_spec.rb
index 8be41a5720..352ae274b4 100644
--- a/spec/ruby/library/matrix/eigenvalue_decomposition/to_a_spec.rb
+++ b/spec/ruby/library/matrix/eigenvalue_decomposition/to_a_spec.rb
@@ -1,18 +1,21 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::EigenvalueDecomposition#to_a" do
-  before :each do
-    @a = Matrix[[14, 16], [-6, -6]]
-    @e = Matrix::EigenvalueDecomposition.new(@a)
-  end
+ruby_version_is ""..."3.1" do
+  require 'matrix'
 
-  it "returns an array of with [V, D, V.inv]" do
-    @e.to_a.should == [@e.v, @e.d, @e.v_inv]
-  end
+  describe "Matrix::EigenvalueDecomposition#to_a" do
+    before :each do
+      @a = Matrix[[14, 16], [-6, -6]]
+      @e = Matrix::EigenvalueDecomposition.new(@a)
+    end
+
+    it "returns an array of with [V, D, V.inv]" do
+      @e.to_a.should == [@e.v, @e.d, @e.v_inv]
+    end
 
-  it "returns a factorization" do
-    v, d, v_inv = @e.to_a
-    (v * d * v_inv).map{|e| e.round(10)}.should == @a
+    it "returns a factorization" do
+      v, d, v_inv = @e.to_a
+      (v * d * v_inv).map{|e| e.round(10)}.should == @a
+    end
   end
 end