Hack to mock the python True object

mocktrue.py

import mock

class AlmostAlwaysTrue(object):

    def __init__(self, total_iterations=1):
        self.total_iterations = total_iterations
        self.current_iteration = 0

    def __nonzero__(self):
        if self.current_iteration < self.total_iterations:
            self.current_iteration += 1
            return bool(1)
        return bool(0)


with mock.patch('__builtin__.True', AlmostAlwaysTrue(4)):
    while True:
        print "Loop!"

output.txt

daltonmatos@jetta wsgid % python mocktrue.py
Loop!
Loop!
Loop!
Loop!
daltonmatos@jetta wsgid % 

Thanks! Though I don't need to change the value of True, this snippet did show me how to work around Python 2.7 mock's lack of ability to mock __bool__: you instead mock __nonzero__.