assert exit_code == 0

    assert stderr == ""

    # John also does a quick check on the generated certificate's

    # signing and public key algorithm.

    # He can see that the generated private key uses the same size as the

    # one he specified for the CA hierarchy.

def test_server_command_key_specification_with_rsa(tmpdir):

    # He nods with his head, observing that the generated private key

    # uses the same key size as he has requested.

def test_client_command_default_key_specification_with_rsa(tmpdir):

    # He can see that the generated private key uses the same size as the

    # one he specified for the CA hierarchy.

def test_client_command_key_specification_with_rsa(tmpdir):

    # He nods with his head, observing that the generated private key

    # uses the same key size as he has specified.

def test_renew_command_key_specification_with_rsa(tmpdir):

    # disovers that Gimmecert generated the key according to his

    # wishes.

    stdout, _, _ = run_command('openssl', 'rsa', '-noout', '-text', '-in', '.gimmecert/server/myserver1.key.pem')

    # John goes ahead and performs a similar operation for his client

    # entity.

    # And once again, Gimmecert has created the key with correct size.

    stdout, _, _ = run_command('openssl', 'rsa', '-noout', '-text', '-in', '.gimmecert/client/myclient1.key.pem')

    # After some further testing, John decides to renew the

    # certificates that have been issued using a CSR. He requests new

    # The renew command has used the same key specification for the

    # new private key as for the old private key.

    # He performs the same check on the client key.

    stdout, _, _ = run_command('openssl', 'rsa', '-noout', '-text', '-in', '.gimmecert/client/myclient1.key.pem')

    # The renew command has used the same key specification for the

    # new private key as for the old private key.

    # After using his manually generated private keys for a while,

    # John accidentally deletes them from his managed machine. Instead

    # He checks the server private key, and everything seems right -

    # same key size is used as in case of the old private key.

    stdout, stderr, _ = run_command('openssl', 'rsa', '-noout', '-text', '-in', '.gimmecert/server/myserver2.key.pem')

    # Then he has a look at the client private key, and that one is

    # also using the same key size as the old private key.

    stdout, _, _ = run_command('openssl', 'rsa', '-noout', '-text', '-in', '.gimmecert/client/myclient2.key.pem')

def test_initialisation_with_ecdsa_key_specification(tmpdir):