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"""Governs coverage for the tests of the Face layer of RPC Framework."""

import abc

import six

# These classes are only valid when inherited by unittest.TestCases.
# pylint: disable=invalid-name


class BlockingCoverage(six.with_metaclass(abc.ABCMeta)):
  """Specification of test coverage for blocking behaviors."""

  @abc.abstractmethod
  def testSuccessfulUnaryRequestUnaryResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testSuccessfulUnaryRequestStreamResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testSuccessfulStreamRequestUnaryResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testSuccessfulStreamRequestStreamResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testSequentialInvocations(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testExpiredUnaryRequestUnaryResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testExpiredUnaryRequestStreamResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testExpiredStreamRequestUnaryResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testExpiredStreamRequestStreamResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testFailedUnaryRequestUnaryResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testFailedUnaryRequestStreamResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testFailedStreamRequestUnaryResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testFailedStreamRequestStreamResponse(self):
    raise NotImplementedError()


class FullCoverage(six.with_metaclass(abc.ABCMeta, BlockingCoverage)):
  """Specification of test coverage for non-blocking behaviors."""

  @abc.abstractmethod
  def testParallelInvocations(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testWaitingForSomeButNotAllParallelInvocations(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testCancelledUnaryRequestUnaryResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testCancelledUnaryRequestStreamResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testCancelledStreamRequestUnaryResponse(self):
    raise NotImplementedError()

  @abc.abstractmethod
  def testCancelledStreamRequestStreamResponse(self):
    raise NotImplementedError()