```ruby

#
# specifying flor
#
# Tue May 17 06:57:16 JST 2016
#

require 'spec_helper'


describe 'Flor procedures' do

  before :each do

    @executor = Flor::TransientExecutor.new
  end

  describe 'stall' do

    it 'stalls' do

      r = @executor.launch(
        %q{
          sequence
            stall _
        })

      expect(r).to eq(nil)

      ex = @executor.execution

      expect(ex['nodes'].keys).to eq(%w[ 0 0_0 ])
      expect(ex['errors']).to eq([])
      expect(ex['counters']).to eq({ 'msgs' => 4 })
    end
  end
end

```

Add "stall" vs attributes spec
user
```ruby

#
# specifying flor
#
# Tue May 17 06:57:16 JST 2016
#

require 'spec_helper'


describe 'Flor procedures' do

  before :each do

    @executor = Flor::TransientExecutor.new
  end

  describe 'stall' do

    it 'stalls' do

      r = @executor.launch(
        %q{
          sequence
            stall _
        })

      expect(r).to eq(nil)

      ex = @executor.execution

      expect(ex['nodes'].keys).to eq(%w[ 0 0_0 ])
      expect(ex['errors']).to eq([])
      expect(ex['counters']).to eq({ 'msgs' => 4 })
    end

    it 'executes its attributes' do

      r = @executor.launch(
        %q{
          sequence
            stall tag: 'dead' + 'end'
        })

      expect(r).to eq(nil)

      ent = @executor.journal
        .select { |m| m['point'] == 'entered' }
        .collect { |m| m['tags'] }
        .compact
      lef = @executor.journal
        .select { |m| m['point'] == 'left' }
        .collect { |m| m['tags'] }
        .compact

      expect(ent).to eq([ %w[ deadend ] ])
      expect(lef).to eq([])
    end
  end
end

```
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