1 files changed, 25 insertions, 28 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 8702292865..9b1dccbbac 100644
--- a/spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb
+++ b/spec/ruby/library/matrix/lup_decomposition/to_a_spec.rb
@@ -1,36 +1,33 @@
 require_relative '../../../spec_helper'
+require 'matrix'
 
-ruby_version_is ""..."3.1" do
-  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
+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 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 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 [l, u, p] such that l*u == a*p" do
-      (@l * @u).should == (@p * @a)
-    end
+  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
+  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
-
-    it "has other properties implied by the specs of #l, #u and #p"
   end
+
+  it "has other properties implied by the specs of #l, #u and #p"
 end