Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/library/matrix/column_vectors_spec.rb

@@ -0,0 +1,26 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'matrix'
+
+describe "Matrix#column_vectors" do
+
+  before :each do
+    @vectors = Matrix[ [1,2], [3,4] ].column_vectors
+  end
+
+  it "returns an Array" do
+    Matrix[ [1,2], [3,4] ].column_vectors.should be_an_instance_of(Array)
+  end
+
+  it "returns an Array of Vectors" do
+    @vectors.all? {|v| v.should be_an_instance_of(Vector)}
+  end
+
+  it "returns each column as a Vector" do
+    @vectors.should == [Vector[1,3], Vector[2,4]]
+  end
+
+  it "returns an empty Array for empty matrices" do
+    Matrix[ [] ].column_vectors.should == []
+  end
+
+end