1 files changed, 25 insertions, 0 deletions
diff --git a/spec/ruby/library/matrix/column_vector_spec.rb b/spec/ruby/library/matrix/column_vector_spec.rb
new file mode 100644
index 0000000000..f0cc46d646
--- /dev/null
+++ b/spec/ruby/library/matrix/column_vector_spec.rb
@@ -0,0 +1,25 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+require 'matrix'
+
+describe "Matrix.column_vector" do
+
+  it "returns a single column Matrix when called with an Array" do
+    m = Matrix.column_vector([4,5,6])
+    m.should be_an_instance_of(Matrix)
+    m.should == Matrix[ [4],[5],[6] ]
+  end
+
+  it "returns an empty Matrix when called with an empty Array" do
+    m = Matrix.column_vector([])
+    m.should be_an_instance_of(Matrix)
+    m.row_size.should == 0
+    m.column_size.should == 1
+  end
+
+  describe "for a subclass of Matrix" do
+    it "returns an instance of that subclass" do
+      MatrixSub.column_vector([4,5,6]).should be_an_instance_of(MatrixSub)
+    end
+  end
+end