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

1 files changed, 21 insertions, 18 deletions

diff --git a/spec/ruby/library/matrix/lower_triangular_spec.rb b/spec/ruby/library/matrix/lower_triangular_spec.rb
index f3aa4501f4..0223b8b619 100644
--- a/spec/ruby/library/matrix/lower_triangular_spec.rb
+++ b/spec/ruby/library/matrix/lower_triangular_spec.rb
@@ -1,24 +1,27 @@
 require_relative '../../spec_helper'
-require 'matrix'
 
-describe "Matrix.lower_triangular?" do
-  it "returns true for a square lower triangular Matrix" do
-    Matrix[[1, 0, 0], [1, 2, 0], [1, 2, 3]].lower_triangular?.should be_true
-    Matrix.diagonal([1, 2, 3]).lower_triangular?.should be_true
-    Matrix[[1, 0], [1, 2], [1, 2], [1, 2]].lower_triangular?.should be_true
-    Matrix[[1, 0, 0, 0], [1, 2, 0, 0]].lower_triangular?.should be_true
-  end
+ruby_version_is ""..."3.1" do
+  require 'matrix'
 
-  it "returns true for an empty Matrix" do
-    Matrix.empty(3, 0).lower_triangular?.should be_true
-    Matrix.empty(0, 3).lower_triangular?.should be_true
-    Matrix.empty(0, 0).lower_triangular?.should be_true
-  end
+  describe "Matrix.lower_triangular?" do
+    it "returns true for a square lower triangular Matrix" do
+      Matrix[[1, 0, 0], [1, 2, 0], [1, 2, 3]].lower_triangular?.should be_true
+      Matrix.diagonal([1, 2, 3]).lower_triangular?.should be_true
+      Matrix[[1, 0], [1, 2], [1, 2], [1, 2]].lower_triangular?.should be_true
+      Matrix[[1, 0, 0, 0], [1, 2, 0, 0]].lower_triangular?.should be_true
+    end
+
+    it "returns true for an empty Matrix" do
+      Matrix.empty(3, 0).lower_triangular?.should be_true
+      Matrix.empty(0, 3).lower_triangular?.should be_true
+      Matrix.empty(0, 0).lower_triangular?.should be_true
+    end
 
-  it "returns false for a non lower triangular square Matrix" do
-    Matrix[[0, 1], [0, 0]].lower_triangular?.should be_false
-    Matrix[[1, 2, 3], [1, 2, 3], [1, 2, 3]].lower_triangular?.should be_false
-    Matrix[[0, 1], [0, 0], [0, 0], [0, 0]].lower_triangular?.should be_false
-    Matrix[[0, 0, 0, 1], [0, 0, 0, 0]].lower_triangular?.should be_false
+    it "returns false for a non lower triangular square Matrix" do
+      Matrix[[0, 1], [0, 0]].lower_triangular?.should be_false
+      Matrix[[1, 2, 3], [1, 2, 3], [1, 2, 3]].lower_triangular?.should be_false
+      Matrix[[0, 1], [0, 0], [0, 0], [0, 0]].lower_triangular?.should be_false
+      Matrix[[0, 0, 0, 1], [0, 0, 0, 0]].lower_triangular?.should be_false
+    end
   end
 end