require_relative '../fixtures/classes' require 'matrix' describe :matrix_rectangular, shared: true do it "returns [receiver.real, receiver.imag]" do m = Matrix[ [1.2, Complex(1,2)], [Complex(-2,0.42), 4] ] m.send(@method).should == [m.real, m.imag] m = Matrix.empty(3, 0) m.send(@method).should == [m.real, m.imag] end describe "for a subclass of Matrix" do it "returns instances of that subclass" do MatrixSub.ins.send(@method).each{|m| m.should be_an_instance_of(MatrixSub) } end end end