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

1 files changed, 28 insertions, 25 deletions

diff --git a/spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb b/spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb
index 9b1dccbbac..8702292865 100644
--- a/spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb
@@ -1,33 +1,36 @@
 require_relative '../../../spec_helper'
-require 'matrix'
 
-describe "Matrix::LUPDecomposition#to_a" do
-  before :each do
-    @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
-    @lu = Matrix::LUPDecomposition.new(@a)
-    @to_a = @lu.to_a
-    @l, @u, @p = @to_a
-  end
+ruby_version_is ""..."3.1" do
+  require 'matrix'
 
-  it "returns an array of three matrices" do
-    @to_a.should be_kind_of(Array)
-    @to_a.length.should == 3
-    @to_a.each{|m| m.should be_kind_of(Matrix)}
-  end
+  describe "Matrix::LUPDecomposition#to_a" do
+    before :each do
+      @a = Matrix[[7, 8, 9], [14, 46, 51], [28, 82, 163]]
+      @lu = Matrix::LUPDecomposition.new(@a)
+      @to_a = @lu.to_a
+      @l, @u, @p = @to_a
+    end
 
-  it "returns [l, u, p] such that l*u == a*p" do
-    (@l * @u).should == (@p * @a)
-  end
+    it "returns an array of three matrices" do
+      @to_a.should be_kind_of(Array)
+      @to_a.length.should == 3
+      @to_a.each{|m| m.should be_kind_of(Matrix)}
+    end
 
-  it "returns the right values for rectangular matrices" do
-    [
-      Matrix[[7, 8, 9], [14, 46, 51]],
-      Matrix[[4, 11], [5, 8], [3, 4]],
-    ].each do |a|
-      l, u, p = Matrix::LUPDecomposition.new(a).to_a
-      (l * u).should == (p * a)
+    it "returns [l, u, p] such that l*u == a*p" do
+      (@l * @u).should == (@p * @a)
+    end
+
+    it "returns the right values for rectangular matrices" do
+      [
+        Matrix[[7, 8, 9], [14, 46, 51]],
+        Matrix[[4, 11], [5, 8], [3, 4]],
+      ].each do |a|
+        l, u, p = Matrix::LUPDecomposition.new(a).to_a
+        (l * u).should == (p * a)
+      end
     end
-  end
 
-  it "has other properties implied by the specs of #l, #u and #p"
+    it "has other properties implied by the specs of #l, #u and #p"
+  end
 end