1 files changed, 18 insertions, 15 deletions
diff --git a/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvector_matrix_spec.rb b/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvector_matrix_spec.rb
index 09f229ee15..57299ce69e 100644
--- a/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvector_matrix_spec.rb
+++ b/spec/ruby/library/matrix/eigenvalue_decomposition/eigenvector_matrix_spec.rb
@@ -1,20 +1,23 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::EigenvalueDecomposition#eigenvector_matrix" do
-  it "returns a complex eigenvector matrix given a rotation matrix" do
-    # Fix me: should test for linearity, not for equality
-    Matrix[[ 1, 1],
-           [-1, 1]].eigensystem.eigenvector_matrix.should ==
-    Matrix[[1, 1],
-           [Complex(0, 1), Complex(0, -1)]]
-  end
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::EigenvalueDecomposition#eigenvector_matrix" do
+    it "returns a complex eigenvector matrix given a rotation matrix" do
+      # Fix me: should test for linearity, not for equality
+      Matrix[[ 1, 1],
+             [-1, 1]].eigensystem.eigenvector_matrix.should ==
+      Matrix[[1, 1],
+             [Complex(0, 1), Complex(0, -1)]]
+    end
 
-  it "returns an real eigenvector matrix for a symmetric matrix" do
-    # Fix me: should test for linearity, not for equality
-    Matrix[[1, 2],
-           [2, 1]].eigensystem.eigenvector_matrix.should ==
-    Matrix[[0.7071067811865475, 0.7071067811865475],
-           [-0.7071067811865475, 0.7071067811865475]]
+    it "returns an real eigenvector matrix for a symmetric matrix" do
+      # Fix me: should test for linearity, not for equality
+      Matrix[[1, 2],
+             [2, 1]].eigensystem.eigenvector_matrix.should ==
+      Matrix[[0.7071067811865475, 0.7071067811865475],
+             [-0.7071067811865475, 0.7071067811865475]]
+    end
   end
 end