def METHOD_NAME(self):
    """
    Verify that the label array has all of the data it was given.
    """
    op = self.op
    slicing = self.slicing
    inData = self.inData
    data = self.data
    # Output
    outputData = op.Output[...].wait()
    assert numpy.all(outputData[...] == data[...])
    # maxLabel
    # assert op.maxLabel.value == inData.max()
    # nonzeroValues
    # nz = op.nonzeroValues.value
    # assert len(nz) == len(vigra.analysis.unique(inData))-1