Newer
Older
import unittest
import os, sys
## make sure this instance of pyqtgraph gets imported first
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
## all tests should be defined with this class so we have the option to tweak it later.
class TestCase(unittest.TestCase):
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
def testLRU(self):
from pyqtgraph.lru_cache import LRUCache
lru = LRUCache(2, 1)
def CheckLru():
lru[1] = 1
lru[2] = 2
lru[3] = 3
self.assertEqual(2, len(lru))
self.assertSetEqual(set([2, 3]), set(lru.keys()))
self.assertSetEqual(set([2, 3]), set(lru.values()))
lru[2] = 2
self.assertSetEqual(set([2, 3]), set(lru.values()))
lru[1] = 1
self.assertSetEqual(set([2, 1]), set(lru.values()))
#Iterates from the used in the last access to others based on access time.
self.assertEqual([(2, 2), (1, 1)], list(lru.iteritems(access_time=True)))
lru[2] = 2
self.assertEqual([(1, 1), (2, 2)], list(lru.iteritems(access_time=True)))
del lru[2]
self.assertEqual([(1, 1), ], list(lru.iteritems(access_time=True)))
lru[2] = 2
self.assertEqual([(1, 1), (2, 2)], list(lru.iteritems(access_time=True)))
_a = lru[1]
self.assertEqual([(2, 2), (1, 1)], list(lru.iteritems(access_time=True)))
_a = lru[2]
self.assertEqual([(1, 1), (2, 2)], list(lru.iteritems(access_time=True)))
self.assertEqual(lru.get(2), 2)
self.assertEqual(lru.get(3), None)
self.assertEqual([(1, 1), (2, 2)], list(lru.iteritems(access_time=True)))
lru.clear()
self.assertEqual([], list(lru.iteritems()))
CheckLru()
# Check it twice...
CheckLru()
if __name__ == '__main__':
unittest.main()