spec/ruby/core/dir/empty_spec.rb


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

ruby_version_is "2.4" do
  describe "Dir.empty?" do
    before :all do
      @empty_dir = tmp("empty_dir")
      mkdir_p @empty_dir
    end

    after :all do
      rm_r @empty_dir
    end

    it "returns true for empty directories" do
      result = Dir.empty? @empty_dir
      result.should be_true
    end

    it "returns false for non-empty directories" do
      result = Dir.empty? __dir__
      result.should be_false
    end

    it "returns false for a non-directory" do
      result = Dir.empty? __FILE__
      result.should be_false
    end

    it "raises ENOENT for nonexistent directories" do
      lambda { Dir.empty? tmp("nonexistent") }.should raise_error(Errno::ENOENT)
    end
  end
end