Guard ruby/spec with spec/mspec/tool/wrap_with_guard.rb

1 files changed, 18 insertions, 15 deletions

diff --git a/spec/ruby/library/matrix/lup_decomposition/determinant_spec.rb b/spec/ruby/library/matrix/lup_decomposition/determinant_spec.rb
index 9d733066c1..1ac4bc971e 100644
--- a/spec/ruby/library/matrix/lup_decomposition/determinant_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/determinant_spec.rb
@@ -1,21 +1,24 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::LUPDecomposition#determinant" do
-  it "returns the determinant when the matrix is square" do
-    a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
-    a.lup.determinant.should == 15120 # == a.determinant
-  end
+ruby_version_is ""..."3.1" do
+  require 'matrix'
+
+  describe "Matrix::LUPDecomposition#determinant" do
+    it "returns the determinant when the matrix is square" do
+      a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
+      a.lup.determinant.should == 15120 # == a.determinant
+    end
 
-  it "raises an error for rectangular matrices" do
-    [
-      Matrix[[7, 8, 9], [14, 46, 51]],
-      Matrix[[7, 8], [14, 46], [28, 82]],
-    ].each do |m|
-      lup = m.lup
-      -> {
-        lup.determinant
-      }.should raise_error(Matrix::ErrDimensionMismatch)
+    it "raises an error for rectangular matrices" do
+      [
+        Matrix[[7, 8, 9], [14, 46, 51]],
+        Matrix[[7, 8], [14, 46], [28, 82]],
+      ].each do |m|
+        lup = m.lup
+        -> {
+          lup.determinant
+        }.should raise_error(Matrix::ErrDimensionMismatch)
+      end
     end
   end
 end