import json
import pytest

from image.docker.schema2.config import MalformedSchema2Config, DockerSchema2Config

@pytest.mark.parametrize('json_data', [
  '',
  '{}',
  """
  {
    "unknown": "key"
  }
  """,
])
def test_malformed_configs(json_data):
  with pytest.raises(MalformedSchema2Config):
    DockerSchema2Config(json_data)

CONFIG_BYTES = json.dumps({
  "architecture": "amd64",
  "config": {
    "Hostname": "",
    "Domainname": "",
    "User": "",
    "AttachStdin": False,
    "AttachStdout": False,
    "AttachStderr": False,
    "Tty": False,
    "OpenStdin": False,
    "StdinOnce": False,
    "Env": [
      "HTTP_PROXY=http:\/\/localhost:8080",
      "http_proxy=http:\/\/localhost:8080",
      "PATH=\/usr\/local\/sbin:\/usr\/local\/bin:\/usr\/sbin:\/usr\/bin:\/sbin:\/bin"
    ],
    "Cmd": [
      "sh"
    ],
    "Image": "",
    "Volumes": None,
    "WorkingDir": "",
    "Entrypoint": None,
    "OnBuild": None,
    "Labels": {
      
    }
  },
  "container": "b7a43694b435c8e9932615643f61f975a9213e453b15cd6c2a386f144a2d2de9",
  "container_config": {
    "Hostname": "b7a43694b435",
    "Domainname": "",
    "User": "",
    "AttachStdin": True,
    "AttachStdout": True,
    "AttachStderr": True,
    "Tty": True,
    "OpenStdin": True,
    "StdinOnce": True,
    "Env": [
      "HTTP_PROXY=http:\/\/localhost:8080",
      "http_proxy=http:\/\/localhost:8080",
      "PATH=\/usr\/local\/sbin:\/usr\/local\/bin:\/usr\/sbin:\/usr\/bin:\/sbin:\/bin"
    ],
    "Cmd": [
      "sh"
    ],
    "Image": "jschorr\/somerepo",
    "Volumes": None,
    "WorkingDir": "",
    "Entrypoint": None,
    "OnBuild": None,
    "Labels": {
      
    }
  },
  "created": "2018-04-16T10:41:19.079522722Z",
  "docker_version": "17.09.0-ce",
  "history": [
    {
      "created": "2018-04-03T18:37:09.284840891Z",
      "created_by": "\/bin\/sh -c #(nop) ADD file:9e4ca21cbd24dc05b454b6be21c7c639216ae66559b21ba24af0d665c62620dc in \/ "
    },
    {
      "created": "2018-04-03T18:37:09.613317719Z",
      "created_by": "/bin/sh -c #(nop)  CMD [\"sh\"]",
      "empty_layer": True
    },
    {
      "created": "2018-04-16T10:37:44.418262777Z",
      "created_by": "sh"
    },
    {
      "created": "2018-04-16T10:41:19.079522722Z",
      "created_by": "sh"
    }
  ],
  "os": "linux",
  "rootfs": {
    "type": "layers",
    "diff_ids": [
      "sha256:3e596351c689c8827a3c9635bc1083cff17fa4a174f84f0584bd0ae6f384195b",
      "sha256:4552be273c71275a88de0b8c8853dcac18cb74d5790f5383d9b38d4ac55062d5",
      "sha256:1319c76152ca37fbeb7fb71e0ffa7239bc19ffbe3b95c00417ece39d89d06e6e"
    ]
  }
})

def test_valid_config():
  config = DockerSchema2Config(CONFIG_BYTES)
  history = list(config.history)
  assert len(history) == 4

  assert not history[0].is_empty
  assert history[1].is_empty

  assert history[0].created_datetime.year == 2018
  assert history[1].command == '/bin/sh -c #(nop)  CMD ["sh"]'
  assert history[2].command == 'sh'

  for index, history_entry in enumerate(history):
    v1_compat = config.build_v1_compatibility(index, 'somev1id', 'someparentid')
    assert v1_compat['id'] == 'somev1id'
    assert v1_compat['parent'] == 'someparentid'

    if index == 3:
      assert v1_compat['container_config'] == config._parsed['container_config']
    else:
      assert 'Hostname' not in v1_compat['container_config']
      assert v1_compat['container_config']['Cmd'] == history_entry.command