from unittest import TestCase
from decorators import test_cases, add_tests
from functions_to_test import f1, f2, f3
import unittest
test_input = [
[
f1,
[1],
2
],
[
f2,
[2],
3
],
[
f3,
[1, 2],
False
]
]
class TestSuit(TestCase):
def test_f1(self):
a = 1
self.assertEqual(f1(a), 2)
TestSuit = add_tests(test_cases(test_input))(TestSuit)
unittest.main()
def add_tests(generator):
def class_decorator(cls):
"""Add tests to `cls` generated by `generator()`."""
for test_func, func, input, output in generator:
test = lambda self, i=input, o=output, f=test_func, func=func: f(self, func, i, o)
test.__name__ = "test_%s(%r, %r)" % (func.__name__, input, output)
setattr(cls, test.__name__, test)
print("added:", cls, test.__name__, test)
return cls
return class_decorator
def test_cases(parameters):
def t(self, func_to_test, data, result):
self.assertEqual(func_to_test(*data), result)
for function, input, output in parameters:
yield t, function, input, output
def f1(a):
return a*2
def f2(b):
return b+1
def f3(a, b):
return a>b
