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require_relative '../fixtures/classes'
require 'matrix'
describe :collect, shared: true do
before :all do
@m = Matrix[ [1, 2], [1, 2] ]
end
it "returns an instance of Matrix" do
@m.send(@method){|n| n * 2 }.should be_kind_of(Matrix)
end
it "returns a Matrix where each element is the result of the block" do
@m.send(@method) { |n| n * 2 }.should == Matrix[ [2, 4], [2, 4] ]
end
it "returns an enumerator if no block is given" do
@m.send(@method).should be_an_instance_of(Enumerator)
end
describe "for a subclass of Matrix" do
it "returns an instance of that subclass" do
MatrixSub.ins.send(@method){1}.should be_an_instance_of(MatrixSub)
end
end
end
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