require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
require 'matrix'

ruby_version_is "1.9.3" do
  describe "Matrix#round" do
    it "returns a matrix with all entries rounded" do
      Matrix[ [1,   2.34], [5.67, 8] ].round.should == Matrix[ [1, 2], [6, 8] ]
      Matrix[ [1,   2.34], [5.67, 8] ].round(1).should == Matrix[ [1, 2.3], [5.7, 8] ]
    end

    it "returns empty matrices on the same size if empty" do
      Matrix.empty(0, 3).round.should == Matrix.empty(0, 3)
      Matrix.empty(3, 0).round(42).should == Matrix.empty(3, 0)
    end

    ruby_bug "redmine #5307", "1.9.3" do
      describe "for a subclass of Matrix" do
        it "returns an instance of that subclass" do
          MatrixSub.ins.round.should be_an_instance_of(MatrixSub)
        end
      end
    end
  end
end