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from . import output

class TestCase(object):
  def 
(self, suite, path, flags=None, dependency=None):
    self.suite = suite        # TestSuite object
    self.path = path          # string, e.g. 'div-mod', 'test-api/foo'
    self.flags = flags or []  # list of strings, flags specific to this test
    self.dependency = dependency  # |path| for testcase that must be run first
    self.outcomes = None
    self.output = None
    self.id = None  # int, used to map result back to TestCase instance
    self.duration = None  # assigned during execution
    self.run = 1  # The nth time this test is executed.

  def CopyAddingFlags(self, flags):
    copy = TestCase(self.suite, self.path, self.flags + flags, self.dependency)
    copy.outcomes = self.outcomes
    return copy

  def PackTask(self):
    """
    Extracts those parts of this object that are required to run the test
    and returns them as a JSON serializable object.
    """
    assert self.id is not None
    return [self.suitename(), self.path, self.flags,
            self.dependency, list(self.outcomes or []), self.id]

  @staticmethod
  def UnpackTask(task):
    """Creates a new TestCase object based on packed task data."""
    # For the order of the fields, refer to PackTask() above.
    test = TestCase(str(task[0]), task[1], task[2], task[3])
    test.outcomes = set(task[4])
    test.id = task[5]
    test.run = 1
    return test

  def SetSuiteObject(self, suites):
    self.suite = suites[self.suite]

  def PackResult(self):
    """Serializes the output of the TestCase after it has run."""
    self.suite.StripOutputForTransmit(self)
    return [self.id, self.output.Pack(), self.duration]

  def MergeResult(self, result):
    """Applies the contents of a Result to this object."""
    assert result[0] == self.id
    self.output = output.Output.Unpack(result[1])
    self.duration = result[2]

  def suitename(self):
    return self.suite.name

  def GetLabel(self):
    return self.suitename() + "/" + self.suite.CommonTestName(self)

__init__