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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
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