describe "Demand not_dir!" do
  
  it 'must fail for an existing dir' do
    lambda { 
      d = Checked::Demand.new(File.expand_path "~/")
      d.<< :not_dir!
    }.should.raise(Checked::Demand::Failed)
  end
  
end # === describe Demand not_dir!



describe "Demand not_file!" do
  
  it 'must fail for an existing file' do
    lambda { 
      d = Checked::Demand.new(File.expand_path "~/.bashrc")
      d.<< :not_file!
    }.should.raise(Checked::Demand::Failed)
  end
  
end # === describe Demand not_file!


describe "Demand :file_content!" do
  
  it 'must fail for an empty string' do
    lambda { 
      d = Checked::Demand.new('')
      d.<< :file_content!
    }.should.raise(Checked::Demand::Failed)
    .message.should.be == "String, \"\", can't be empty."
  end
  
end # === describe Demand :file_content!