Contents

require "spec_helper"
require "hamster/hash"

describe Hamster::Hash do
  describe "#none?" do
    context "when empty" do
      before do
        @hash = Hamster.hash
      end

      it "with a block returns true" do
        @hash.none? {}.should == true
      end

      it "with no block returns true" do
        @hash.none?.should == true
      end
    end

    context "when not empty" do
      before do
        @hash = Hamster.hash("A" => "aye", "B" => "bee", "C" => "see", nil => "NIL")
      end

      context "with a block" do

        [
          %w[A aye],
          %w[B bee],
          %w[C see],
          [nil, "NIL"],
        ].each do |pair|

          it "returns false if the block ever returns true (#{pair.inspect})" do
            @hash.none? { |key, value| key == pair.first && value == pair.last }.should == false
          end

          it "returns true if the block always returns false" do
            @hash.none? { |key, value| key == "D" && value == "dee" }.should == true
          end
        end
      end

      context "with no block" do
        it "returns false" do
          @hash.none?.should == false
        end
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
hamster-1.0.1.pre.rc2	spec/hamster/hash/none_spec.rb
hamster-1.0.1.pre.rc.1	spec/hamster/hash/none_spec.rb