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dupeguru/core_pe/tests/cache_test.py

146 lines
4.0 KiB
Python

# Created By: Virgil Dupras
# Created On: 2006/09/14
# Copyright 2010 Hardcoded Software (http://www.hardcoded.net)
#
# This software is licensed under the "BSD" License as described in the "LICENSE" file,
# which should be included with this package. The terms are also available at
# http://www.hardcoded.net/licenses/bsd_license
import logging
from pytest import raises, skip
from hscommon.testutil import eq_
try:
from ..cache import Cache, colors_to_string, string_to_colors
except ImportError:
skip("Can't import the cache module, probably hasn't been compiled.")
class TestCasecolors_to_string:
def test_no_color(self):
eq_('',colors_to_string([]))
def test_single_color(self):
eq_('000000',colors_to_string([(0,0,0)]))
eq_('010101',colors_to_string([(1,1,1)]))
eq_('0a141e',colors_to_string([(10,20,30)]))
def test_two_colors(self):
eq_('000102030405',colors_to_string([(0,1,2),(3,4,5)]))
class TestCasestring_to_colors:
def test_empty(self):
eq_([],string_to_colors(''))
def test_single_color(self):
eq_([(0,0,0)],string_to_colors('000000'))
eq_([(2,3,4)],string_to_colors('020304'))
eq_([(10,20,30)],string_to_colors('0a141e'))
def test_two_colors(self):
eq_([(10,20,30),(40,50,60)],string_to_colors('0a141e28323c'))
def test_incomplete_color(self):
# don't return anything if it's not a complete color
eq_([],string_to_colors('102'))
class TestCaseCache:
def test_empty(self):
c = Cache()
eq_(0,len(c))
with raises(KeyError):
c['foo']
def test_set_then_retrieve_blocks(self):
c = Cache()
b = [(0,0,0),(1,2,3)]
c['foo'] = b
eq_(b,c['foo'])
def test_delitem(self):
c = Cache()
c['foo'] = ''
del c['foo']
assert 'foo' not in c
with raises(KeyError):
del c['foo']
def test_persistance(self, tmpdir):
DBNAME = tmpdir.join('hstest.db')
c = Cache(str(DBNAME))
c['foo'] = [(1,2,3)]
del c
c = Cache(str(DBNAME))
eq_([(1,2,3)],c['foo'])
def test_filter(self):
c = Cache()
c['foo'] = ''
c['bar'] = ''
c['baz'] = ''
c.filter(lambda p:p != 'bar') #only 'bar' is removed
eq_(2,len(c))
assert 'foo' in c
assert 'baz' in c
assert 'bar' not in c
def test_clear(self):
c = Cache()
c['foo'] = ''
c['bar'] = ''
c['baz'] = ''
c.clear()
eq_(0,len(c))
assert 'foo' not in c
assert 'baz' not in c
assert 'bar' not in c
def test_corrupted_db(self, tmpdir, monkeypatch):
# If we don't do this monkeypatching, we get a weird exception about trying to flush a
# closed file. I've tried setting logging level and stuff, but nothing worked. So, there we
# go, a dirty monkeypatch.
monkeypatch.setattr(logging, 'warning', lambda *args, **kw: None)
dbname = str(tmpdir.join('foo.db'))
fp = open(dbname, 'w')
fp.write('invalid sqlite content')
fp.close()
c = Cache(dbname) # should not raise a DatabaseError
c['foo'] = [(1, 2, 3)]
del c
c = Cache(dbname)
eq_(c['foo'], [(1, 2, 3)])
def test_by_id(self):
# it's possible to use the cache by referring to the files by their row_id
c = Cache()
b = [(0,0,0),(1,2,3)]
c['foo'] = b
foo_id = c.get_id('foo')
eq_(c[foo_id], b)
class TestCaseCacheSQLEscape:
def test_contains(self):
c = Cache()
assert "foo'bar" not in c
def test_getitem(self):
c = Cache()
with raises(KeyError):
c["foo'bar"]
def test_setitem(self):
c = Cache()
c["foo'bar"] = []
def test_delitem(self):
c = Cache()
c["foo'bar"] = []
try:
del c["foo'bar"]
except KeyError:
self.fail()