File: count_spec.rb

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require File.expand_path('../../../spec_helper', __FILE__)

ruby_version_is "1.8.7" do
  describe "Array#count" do
    it "returns the number of elements" do
      [:a, :b, :c].count.should == 3
    end

    it "returns the number of elements that equal the argument" do
      [:a, :b, :b, :c].count(:b).should == 2
    end

    it "returns the number of element for which the block evaluates to true" do
      [:a, :b, :c].count { |s| s != :b }.should == 2
    end
  end
end