Class TestSet

Modules/_decimal/tests/deccheck.py:341–380

A TestSet contains the original input operands, converted operands, Python exceptions that occurred either during conversion or during execution of the actual function, and the final results. For safety, most attributes are lists that only support the append operation.

    __mul__ = __reversed__ = __rmul__ = __setattr__ = __setitem__ = unsupported

class TestSet(object):
    """A TestSet contains the original input operands, converted operands,
       Python exceptions that occurred either during conversion or during
       execution of the actual function, and the final results.

       For safety, most attributes are lists that only support the append
       operation.

       If a function name is prefixed with 'context.', the corresponding
       context method is called.
    """
    def __init__(self, funcname, operands):
        if funcname.startswith("context."):
            self.funcname = funcname.replace("context.", "")
            self.contextfunc = True
        else:
            self.funcname = funcname
            self.contextfunc = False
        self.op = operands               # raw operand tuple
        self.context = context           # context used for the operation
        self.cop = RestrictedList()      # converted C.Decimal operands
        self.cex = RestrictedList()      # Python exceptions for C.Decimal
        self.cresults = RestrictedList() # C.Decimal results
        self.pop = RestrictedList()      # converted P.Decimal operands
        self.pex = RestrictedList()      # Python exceptions for P.Decimal
        self.presults = RestrictedList() # P.Decimal results

        # If the above results are exact, unrounded and not clamped, repeat
        # the operation with a maxcontext to ensure that huge intermediate
        # values do not cause a MemoryError.
        self.with_maxcontext = False
        self.maxcontext = context.c.copy()
        self.maxcontext.prec = C.MAX_PREC
        self.maxcontext.Emax = C.MAX_EMAX
        self.maxcontext.Emin = C.MIN_EMIN
        self.maxcontext.clear_flags()

        self.maxop = RestrictedList()       # converted C.Decimal operands
        self.maxex = RestrictedList()       # Python exceptions for C.Decimal
        self.maxresults = RestrictedList()  # C.Decimal results


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