flowp 1.0

Installation

$ pip3 install flowp

Quick start

Test subject (mymodule.py):

class SomeObject:
    def __init__(self, logger=None):
        self._logger = logger

    def count(self, *args):
        positives = 0
        for arg in args:
            if arg > 0:
                positives += 1

        if self._logger:
            self._logger.info(positives)
        else:
            return positives

Behavior specyfication (spec_mymodule.py):

import mymodule
from flowp.testing import Behavior, when, expect
from unittest import mock


class SomeObject(Behavior):
    def before_each(self):
        self.subject = mymodule.SomeObject()

    def logger_given(self):
        self.logger = mock.Mock()
        self.subject = mymodule.SomeObject(self.logger)

    def it_counts_positive_numbers(self):
        expect(self.subject.count(-1, 2, -3, 4)) == 2

    @when(logger_given)
    def it_sends_results_to_logger(self):
        self.subject.count(-1, 2, -3, 4)
        expect(self.logger.info).called_with(2)

Then run:

$ python3 -m flowp.testing -v