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require File.expand_path('../../fixtures/classes', __FILE__)
require 'matrix'
describe :matrix_identity, shared: true do
it "returns a Matrix" do
Matrix.send(@method, 2).should be_kind_of(Matrix)
end
it "returns a n x n identity matrix" do
Matrix.send(@method, 3).should == Matrix.scalar(3, 1)
Matrix.send(@method, 100).should == Matrix.scalar(100, 1)
end
describe "for a subclass of Matrix" do
it "returns an instance of that subclass" do
MatrixSub.send(@method, 2).should be_an_instance_of(MatrixSub)
end
end
end
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