1 files changed, 31 insertions, 34 deletions
diff --git a/spec/ruby/library/matrix/minus_spec.rb b/spec/ruby/library/matrix/minus_spec.rb
index 27dfbeaea5..95cf4a6072 100644
--- a/spec/ruby/library/matrix/minus_spec.rb
+++ b/spec/ruby/library/matrix/minus_spec.rb
@@ -1,45 +1,42 @@
 require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+require 'matrix'
 
-ruby_version_is ""..."3.1" do
-  require_relative 'fixtures/classes'
-  require 'matrix'
-
-  describe "Matrix#-" do
-    before :each do
-      @a = Matrix[ [1, 2], [3, 4] ]
-      @b = Matrix[ [4, 5], [6, 7] ]
-    end
+describe "Matrix#-" do
+  before :each do
+    @a = Matrix[ [1, 2], [3, 4] ]
+    @b = Matrix[ [4, 5], [6, 7] ]
+  end
 
-    it "returns the result of subtracting the corresponding elements of other from self" do
-      (@a - @b).should == Matrix[ [-3,-3], [-3,-3] ]
-    end
+  it "returns the result of subtracting the corresponding elements of other from self" do
+    (@a - @b).should == Matrix[ [-3,-3], [-3,-3] ]
+  end
 
-    it "returns an instance of Matrix" do
-      (@a - @b).should be_kind_of(Matrix)
-    end
+  it "returns an instance of Matrix" do
+    (@a - @b).should be_kind_of(Matrix)
+  end
 
-    it "raises a Matrix::ErrDimensionMismatch if the matrices are different sizes" do
-      -> { @a - Matrix[ [1] ] }.should raise_error(Matrix::ErrDimensionMismatch)
-    end
+  it "raises a Matrix::ErrDimensionMismatch if the matrices are different sizes" do
+    -> { @a - Matrix[ [1] ] }.should raise_error(Matrix::ErrDimensionMismatch)
+  end
 
-    it "raises a ExceptionForMatrix::ErrOperationNotDefined if other is a Numeric Type" do
-      -> { @a - 2            }.should raise_error(Matrix::ErrOperationNotDefined)
-      -> { @a - 1.2          }.should raise_error(Matrix::ErrOperationNotDefined)
-      -> { @a - bignum_value }.should raise_error(Matrix::ErrOperationNotDefined)
-    end
+  it "raises a ExceptionForMatrix::ErrOperationNotDefined if other is a Numeric Type" do
+    -> { @a - 2            }.should raise_error(Matrix::ErrOperationNotDefined)
+    -> { @a - 1.2          }.should raise_error(Matrix::ErrOperationNotDefined)
+    -> { @a - bignum_value }.should raise_error(Matrix::ErrOperationNotDefined)
+  end
 
-    it "raises a TypeError if other is of wrong type" do
-      -> { @a - nil        }.should raise_error(TypeError)
-      -> { @a - "a"        }.should raise_error(TypeError)
-      -> { @a - [ [1, 2] ] }.should raise_error(TypeError)
-      -> { @a - Object.new }.should raise_error(TypeError)
-    end
+  it "raises a TypeError if other is of wrong type" do
+    -> { @a - nil        }.should raise_error(TypeError)
+    -> { @a - "a"        }.should raise_error(TypeError)
+    -> { @a - [ [1, 2] ] }.should raise_error(TypeError)
+    -> { @a - Object.new }.should raise_error(TypeError)
+  end
 
-    describe "for a subclass of Matrix" do
-      it "returns an instance of that subclass" do
-        m = MatrixSub.ins
-        (m-m).should be_an_instance_of(MatrixSub)
-      end
+  describe "for a subclass of Matrix" do
+    it "returns an instance of that subclass" do
+      m = MatrixSub.ins
+      (m-m).should be_an_instance_of(MatrixSub)
     end
   end
 end