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improve the NamedTupleCursor cache test

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This commit is contained in:
Changaco 2019-06-04 13:44:40 +02:00
parent 668d507c34
commit 527592a0a5
1 changed files with 10 additions and 0 deletions
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10
tests/test_extras_dictcursor.py
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@ -615,17 +615,27 @@ class NamedTupleCursorTest(ConnectingTestCase):
self.assertEqual(i + 1, curs.rownumber)
def test_cache(self):
NamedTupleCursor._cached_make_nt.cache_clear()
curs = self.conn.cursor()
curs.execute("select 10 as a, 20 as b")
r1 = curs.fetchone()
curs.execute("select 10 as a, 20 as c")
r2 = curs.fetchone()
# Get a new cursor to check that the cache works across multiple ones
curs = self.conn.cursor()
curs.execute("select 10 as a, 30 as b")
r3 = curs.fetchone()
self.assert_(type(r1) is type(r3))
self.assert_(type(r1) is not type(r2))
cache_info = NamedTupleCursor._cached_make_nt.cache_info()
self.assertEqual(cache_info.hits, 1)
self.assertEqual(cache_info.misses, 2)
self.assertEqual(cache_info.currsize, 2)
def test_max_cache(self):
old_func = NamedTupleCursor._cached_make_nt
NamedTupleCursor._cached_make_nt = \