derivation 0.3.0

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Derivation

Derivation is a flexible payload generating framework with highly-customizable patterns and rules which raise your efficiency significantly on test case implementation against complicated inputs.

Getting Started

Derivative

Derivative is the primary object which sorted out all of valid outputs meet the constraints.

The script below can be executed directly

from enum import Enum, auto
from operator import or_

from derivation.constraint import (
    MutuallyExclusiveConstraint,
    OccurrenceConstraint,
    PrerequisiteConstraint,
    TerminationConstraint,
)
from derivation.derivative import Derivative


class DerivativeEvent(Enum):
    @staticmethod
    def _generate_next_value_(name, start, count, last_values):
        return name.upper()


class DerivativeEventAlpha(DerivativeEvent):

    ESSENTIALS = auto()

    OPTIONAL_1 = auto()
    OPTIONAL_1_1 = auto()
    OPTIONAL_1_2 = auto()

    OPTIONAL_2 = auto()
    OPTIONAL_3 = auto()


EVENT_ALPHA = {event: {event.value: None} for event in DerivativeEventAlpha}

derivative = Derivative(
    EVENT_ALPHA,
    or_,
    (
        OccurrenceConstraint(
            (DerivativeEventAlpha.ESSENTIALS,),
            min_times=1,
            max_times=1,
        ),
        MutuallyExclusiveConstraint(
            (
                DerivativeEventAlpha.OPTIONAL_1,
                DerivativeEventAlpha.OPTIONAL_2,
                DerivativeEventAlpha.OPTIONAL_3,
            ),
        ),
        MutuallyExclusiveConstraint(
            (DerivativeEventAlpha.OPTIONAL_1_1, DerivativeEventAlpha.OPTIONAL_1_2),
        ),
        PrerequisiteConstraint(
            (DerivativeEventAlpha.OPTIONAL_1,),
            (DerivativeEventAlpha.OPTIONAL_1_1, DerivativeEventAlpha.OPTIONAL_1_2),
        ),
        TerminationConstraint(
            {
                DerivativeEventAlpha.OPTIONAL_1_1,
                DerivativeEventAlpha.OPTIONAL_1_2,
                DerivativeEventAlpha.OPTIONAL_2,
                DerivativeEventAlpha.OPTIONAL_3,
            },
        ),
    ),
)

for order, result in derivative.exhaustive():

    print(f"{order}\n{result}\n")