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#!/usr/bin/env python3
import base, unittest, copy
from ptk.utils import memoize, Singleton, chars
# I don't know what discover does, but it makes this test fail...
## class MemoizeTestCase(unittest.TestCase):
## def setUp(self):
## self.calls = list()
## @memoize
## def compute(self, v):
## self.calls.append(v)
## return v
## def test_memoize(self):
## self.compute(42)
## self.compute(13)
## self.assertEqual(self.compute(42), 42)
## self.assertEqual(self.calls, [42, 13])
class SingletonUnderTest(metaclass=Singleton):
__reprval__ = '$'
def __init__(self):
self.value = 42
class SingletonTestCase(unittest.TestCase):
def test_instance(self):
self.assertFalse(isinstance(SingletonUnderTest, type))
def test_init(self):
self.assertEqual(SingletonUnderTest.value, 42)
def test_order(self):
values = ['spam', SingletonUnderTest]
values.sort()
self.assertEqual(values, [SingletonUnderTest, 'spam'])
def test_copy(self):
self.assertTrue(copy.copy(SingletonUnderTest) is SingletonUnderTest)
def test_deepcopy(self):
self.assertTrue(copy.deepcopy(SingletonUnderTest) is SingletonUnderTest)
def test_repr(self):
self.assertEqual(repr(SingletonUnderTest), '$')
def test_eq(self):
self.assertNotEqual(SingletonUnderTest, SingletonUnderTest.__class__())
class CharsTestCase(unittest.TestCase):
def test_str(self):
self.assertTrue('*' in chars('*'))
def test_bytes(self):
for byte in b'*':
self.assertTrue(byte in chars('*'))
if __name__ == '__main__':
unittest.main()
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