1 files changed, 20 insertions, 17 deletions
diff --git a/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvectors_spec.rb b/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvectors_spec.rb
index 2b6ce74ea8..54e6857bf3 100644
--- a/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvectors_spec.rb
+++ b/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvectors_spec.rb
@@ -1,22 +1,25 @@
 require_relative '../../../spec_helper'
-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],
-           [-1, 1]].eigensystem.eigenvectors.should ==
-    [ Vector[1, Complex(0, 1)],
-      Vector[1, Complex(0, -1)]
-    ]
-  end
+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],
+             [-1, 1]].eigensystem.eigenvectors.should ==
+      [ Vector[1, Complex(0, 1)],
+        Vector[1, Complex(0, -1)]
+      ]
+    end
 
-  it "returns an array of real eigenvectors for a symmetric matrix" do
-    # Fix me: should test for linearity, not for equality
-    Matrix[[1, 2],
-           [2, 1]].eigensystem.eigenvectors.should ==
-    [ Vector[0.7071067811865475, -0.7071067811865475],
-      Vector[0.7071067811865475, 0.7071067811865475]
-    ]
+    it "returns an array of real eigenvectors for a symmetric matrix" do
+      # Fix me: should test for linearity, not for equality
+      Matrix[[1, 2],
+             [2, 1]].eigensystem.eigenvectors.should ==
+      [ Vector[0.7071067811865475, -0.7071067811865475],
+        Vector[0.7071067811865475, 0.7071067811865475]
+      ]
+    end
   end
 end