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test_park.py
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test_park.py
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# coding: utf-8
# Copyright 2012-2015 litl, LLC. All Rights Reserved.
import operator
import os
import unittest2 as unittest
import park
class KVStoreBase(object):
"""Base tests for KV Stores"""
def test_get_default(self):
self.assertIsNone(self.store.get("missing"))
def test_put_get(self):
key, value = "test_key", "test_value"
self.assertIsNone(self.store.get(key, None))
self.store.put(key, value)
self.assertTrue(self.store.contains(key))
self.assertEqual(value, self.store.get(key))
def test_delete(self):
self.store.put("test_key1", "test_value1")
self.store.put("test_key2", "test_value2")
self.store.delete("test_key1")
self.assertEqual(["test_key2"], list(self.store.keys()))
def test_delete_many(self):
self.store.put("test_key1", "test_value1")
self.store.put("test_key2", "test_value2")
self.store.delete_many(["test_key1", "test_key2"])
self.assertEqual([], list(self.store.keys()))
def test_null_key(self):
key, value = "\x00", "test_value"
self.assertIsNone(self.store.get(key, None))
self.store.put(key, value)
self.assertEqual(value, self.store.get(key))
self.assertEqual([key], list(self.store.keys()))
self.assertEqual([(key, value)], list(self.store.items()))
def test_null_value(self):
key, value = "test_key", "\x00"
self.assertIsNone(self.store.get(key, None))
self.store.put(key, value)
self.assertEqual(value, self.store.get(key))
self.assertEqual([key], list(self.store.keys()))
self.assertEqual([(key, value)], list(self.store.items()))
def test_replace(self):
key = "foo"
self.assertIsNone(self.store.get(key, None))
self.store.put(key, "bar")
self.assertEqual("bar", self.store.get(key))
self.store.put(key, "baz")
self.assertEqual("baz", self.store.get(key))
def test_put_many(self):
items = [
("one", "value1"),
("two", "value2"),
("three", "value3"),
("four", "value4"),
("five", "value5"),
("six", "value6"),
("seven", "value7"),
("eight", "value8"),
("nine", "value9")
]
self.store.put_many(items)
for key, value in items:
self.assertEqual(value, self.store.get(key))
def test_no_keys(self):
self.assertEqual([], list(self.store.keys()))
self.assertEqual([], list(self.store.keys(key_from="foo")))
self.assertEqual([], list(self.store.keys(key_to="bar")))
self.assertEqual([], list(self.store.keys(key_from="foo",
key_to="bar")))
def test_no_items(self):
self.assertEqual([], list(self.store.items()))
self.assertEqual([], list(self.store.items(key_from="foo")))
self.assertEqual([], list(self.store.items(key_to="bar")))
self.assertEqual([], list(self.store.items(key_from="foo",
key_to="bar")))
def test_keys(self):
items = [
("one", "value1"),
("two", "value2"),
("three", "value3"),
("four", "value4"),
("five", "value5"),
("six", "value6"),
("seven", "value7"),
("eight", "value8"),
("nine", "value9")
]
for key, value in items:
self.store.put(key, value)
# Sorted order is: eight five four nine one seven six three two
keys = list(self.store.keys())
expected = "eight five four nine one seven six three two".split()
self.assertEqual(expected, keys)
# Test key_from on keys that are present and missing in the db
keys = list(self.store.keys(key_from="four"))
expected = "four nine one seven six three two".split()
self.assertEqual(expected, keys)
keys = list(self.store.keys(key_from="fo"))
expected = "four nine one seven six three two".split()
self.assertEqual(expected, keys)
# Test key_to
keys = list(self.store.keys(key_to="six"))
expected = "eight five four nine one seven six".split()
self.assertEqual(expected, keys)
keys = list(self.store.keys(key_to="si"))
expected = "eight five four nine one seven".split()
self.assertEqual(expected, keys)
# And test them both together
keys = list(self.store.keys(key_from="five", key_to="three"))
expected = "five four nine one seven six three".split()
self.assertEqual(expected, keys)
def test_prefix_keys(self):
# Fake some interesting keys and values to make sure the
# prefix iterators are working
store = self.store
store.put("a/", "a")
store.put("a/b", "b")
store.put("a/c", "c")
store.put("a/d", "d")
store.put("a/e", "e")
store.put("a/f", "f")
store.put("b/", "b")
store.put("c/", "c")
store.put("d/", "d")
a_list = list(store.prefix_keys("a/"))
self.assertEqual("a/ a/b a/c a/d a/e a/f".split(), a_list)
a_list = list(store.prefix_keys("a/", strip_prefix=True))
self.assertEqual(["", "b", "c", "d", "e", "f"], a_list)
self.assertEqual(["b/"], list(store.prefix_keys("b/")))
self.assertEqual(["c/"], list(store.prefix_keys("c/")))
self.assertEqual(["d/"], list(store.prefix_keys("d/")))
def test_items(self):
put_items = dict([
("one", "value1"),
("two", "value2"),
("three", "value3"),
("four", "value4"),
("five", "value5"),
("six", "value6"),
("seven", "value7"),
("eight", "value8"),
("nine", "value9")
])
for key, value in list(put_items.items()):
self.store.put(key, value)
# Sorted order is: eight five four nine one seven six three two
keys = list(self.store.items())
expected = sorted(list(put_items.items()), key=operator.itemgetter(0))
self.assertEqual(expected, keys)
# Test key_from on keys that are present and missing in the db
keys = list(self.store.items(key_from="four"))
self.assertEqual(expected[2:], keys)
keys = list(self.store.items(key_from="fo"))
self.assertEqual(expected[2:], keys)
# Test key_to
keys = list(self.store.items(key_to="six"))
self.assertEqual(expected[:7], keys)
keys = list(self.store.items(key_to="si"))
self.assertEqual(expected[:6], keys)
# And test them both together
keys = list(self.store.items(key_from="five", key_to="three"))
self.assertEqual(expected[1:8], keys)
def test_prefix_items(self):
# Fake some interesting keys and values to make sure the
# prefix iterators are working
store = self.store
store.put("a/", "a")
store.put("a/b", "b")
store.put("a/c", "c")
store.put("a/d", "d")
store.put("a/e", "e")
store.put("a/f", "f")
store.put("b/", "b")
store.put("c/", "c")
store.put("d/", "d")
expected = [("a/", "a"),
("a/b", "b"),
("a/c", "c"),
("a/d", "d"),
("a/e", "e"),
("a/f", "f")]
a_list = list(store.prefix_items("a/"))
self.assertEqual(expected, a_list)
expected = [("", "a"),
("b", "b"),
("c", "c"),
("d", "d"),
("e", "e"),
("f", "f")]
a_list = list(store.prefix_items("a/", strip_prefix=True))
self.assertEqual(expected, a_list)
def test_context_manager(self):
with self.store as kv:
kv.put("foo", "bar")
kv.put("baz", "quux")
self.assertEqual("bar", kv.get("foo"))
class TestIbatch(unittest.TestCase):
def test_ibatch(self):
items = list(range(10))
batches = park.ibatch(items, 3)
self.assertEqual([0, 1, 2], list(next(batches)))
self.assertEqual([3, 4, 5], list(next(batches)))
self.assertEqual([6, 7, 8], list(next(batches)))
self.assertEqual([9], list(next(batches)))
class TestSQLiteStore(unittest.TestCase, KVStoreBase):
DB = "tests.test_sqlite_store"
def setUp(self):
self.store = park.SQLiteStore(self.DB)
def cleanup():
if os.path.exists(self.DB):
os.unlink(self.DB)
self.addCleanup(cleanup)