old_contents: import pytest
  import subprocess
  
  
  def test_help(tmpdir, cli):
      with cli(
          args=['ceph-deploy', '--help'],
          stdout=subprocess.PIPE,
          ) as p:
          result = p.stdout.read()
          assert 'usage: ceph-deploy' in result
          assert 'Deploy Ceph' in result
          assert 'optional arguments:' in result
          assert 'commands:' in result
  
  
  def test_bad_command(tmpdir, cli):
      with pytest.raises(cli.Failed) as err:
          with cli(
              args=['ceph-deploy', 'bork'],
              stderr=subprocess.PIPE,
              ) as p:
              result = p.stderr.read()
      assert 'usage: ceph-deploy' in result
      assert err.value.status == 2
      assert {p.basename for p in tmpdir.listdir()} == set()
  
  
  def test_bad_cluster(tmpdir, cli):
      with pytest.raises(cli.Failed) as err:
          with cli(
              args=['ceph-deploy', '--cluster=/evil-this-should-not-be-created', 'new'],
              stderr=subprocess.PIPE,
              ) as p:
              result = p.stderr.read()
      assert 'usage: ceph-deploy' in result
      assert err.value.status == 2
      assert {p.basename for p in tmpdir.listdir()} == set()
  
new_contents: import pytest
  import subprocess
  
  
  def test_help(tmpdir, cli):
      with cli(
          args=['ceph-deploy', '--help'],
          stdout=subprocess.PIPE,
          ) as p:
          result = p.stdout.read()
          assert 'usage: ceph-deploy' in result
          assert 'Deploy Ceph' in result
          assert 'optional arguments:' in result
          assert 'commands:' in result
  
  
  def test_bad_command(tmpdir, cli):
      with pytest.raises(cli.Failed) as err:
          with cli(
              args=['ceph-deploy', 'bork'],
              stderr=subprocess.PIPE,
              ) as p:
              result = p.stderr.read()
      assert 'usage: ceph-deploy' in result
      assert err.value.status == 2
      assert [p.basename for p in tmpdir.listdir()] == []
  
  
  def test_bad_cluster(tmpdir, cli):
      with pytest.raises(cli.Failed) as err:
          with cli(
              args=['ceph-deploy', '--cluster=/evil-this-should-not-be-created', 'new'],
              stderr=subprocess.PIPE,
              ) as p:
              result = p.stderr.read()
      assert 'usage: ceph-deploy' in result
      assert err.value.status == 2
      assert [p.basename for p in tmpdir.listdir()] == []
  
subject: make tests compaitble with python 2.6