Contents

require File.expand_path(File.dirname(__FILE__) + '/../../spec_helper')

require 'hamster/list'

describe Hamster::List do

  describe "#compact" do

    it "is lazy" do
      lambda { Hamster.stream { fail }.compact }.should_not raise_error
    end

    [
      [[], []],
      [["A"], ["A"]],
      [["A", "B", "C"], ["A", "B", "C"]],
      [[nil], []],
      [[nil, "B"], ["B"]],
      [["A", nil], ["A"]],
      [[nil, nil], []],
      [["A", nil, "C"], ["A", "C"]],
      [[nil, "B", nil], ["B"]],
    ].each do |values, expected|

      describe "on #{values.inspect}" do

        before do
          @original = Hamster.list(*values)
          @result = @original.compact
        end

        it "preserves the original" do
          @original.should == Hamster.list(*values)
        end

        it "returns #{expected.inspect}" do
          @result.should == Hamster.list(*expected)
        end

      end

    end

  end

end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
hamster-0.2.5	spec/hamster/list/compact_spec.rb
hamster-0.2.4	spec/hamster/list/compact_spec.rb
hamster-0.2.3	spec/hamster/list/compact_spec.rb
hamster-0.2.2	spec/hamster/list/compact_spec.rb