def test_launch_docker_cmd(docker, mock_docker_image):
replica_name = rand_string(10)
docker.return_value = [mock_docker_image.get_image(replica_name)]
result = ReplicaManager.launch_docker_command(replica_name)
cmd = f'docker run -d -p 9999:9999 --rm --name {replica_name} snowshu_replica_{replica_name}'
assert result == cmd
def test_launch_docker_cmd_bad(docker, mock_docker_image):
replica_name = 'does_not_exist'
docker.return_value = [mock_docker_image.get_image(rand_string(10))]
result = ReplicaManager.launch_docker_command(replica_name)
assert result == f'No replica found for does_not_exist.'
def launch_docker_cmd(replica: str):
"""Return the docker command line string to start a given replica."""
replica_manager = ReplicaManager()
click.echo(replica_manager.launch_docker_command(replica))