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test_mapproxy_cacherotate.py
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import os
import shutil
import tempfile
from mapproxy_cacherotate import PaddedLevel, SQLiteLevel, main
class TestRotate(object):
type = PaddedLevel
args = []
def setup(self):
self.tmpdir = tempfile.mkdtemp()
self.cachedir = os.path.join(self.tmpdir, 'cache')
os.makedirs(self.cachedir)
def teardown(self):
shutil.rmtree(self.tmpdir)
def make_levels(self, levels):
for l in levels:
with open(os.path.join(self.cachedir, self.type(str(l)).next(0)), 'w') as f:
f.write(str(l))
def level_file(self, level):
return os.path.join(self.cachedir, self.type(str(level)).next(0))
def assert_not_level(self, level):
assert not os.path.exists(self.level_file(level)), 'level %s exists' % self.level_file(level)
def assert_level(self, level, was=None):
level_file = self.level_file(level)
assert os.path.exists(level_file), 'level %s does not exist' % level_file
if not was:
return
with open(level_file) as f:
was_level = int(f.read())
assert was == was_level, 'level %s was %s, not %s' % (level_file, was_level, was)
def assert_dropped_level(self, level):
level_file = self.level_file(level) + '.dropped'
assert os.path.exists(level_file), 'level %s does not exist' % level_file
def test_rotate_level_end(self):
self.make_levels([0, 1, 3])
for _ in range(2):
main([self.cachedir, '--from-level', '4', '--rotate'] + self.args)
self.assert_level(0, was=0)
self.assert_level(1, was=1)
self.assert_not_level(2)
self.assert_level(3, was=3)
self.assert_not_level(4)
self.assert_not_level(5)
def test_rotate_level_mid(self):
self.make_levels([0, 1, 2, 3, 4, 5, 6, 7])
for _ in range(2):
main([self.cachedir, '--from-level', '5', '--rotate'] + self.args)
self.assert_level(0, was=0)
self.assert_level(1, was=1)
self.assert_level(2, was=2)
self.assert_level(3, was=3)
self.assert_level(4, was=4)
self.assert_not_level(5)
self.assert_level(6, was=5)
self.assert_level(7, was=6)
self.assert_level(8, was=7)
def test_rotate_level_missing(self):
self.make_levels([0, 1, 2, 3, 4, 6, 7])
for _ in range(2):
main([self.cachedir, '--from-level', '5', '--rotate'] + self.args)
self.assert_level(0, was=0)
self.assert_level(1, was=1)
self.assert_level(2, was=2)
self.assert_level(3, was=3)
self.assert_level(4, was=4)
self.assert_not_level(5)
self.assert_not_level(6)
self.assert_level(7, was=6)
self.assert_level(8, was=7)
def test_drop_level_mid(self):
self.make_levels([0, 1, 2, 3, 4, 5, 6, 7])
for _ in range(2):
main([self.cachedir, '--drop-level', '3', '--rotate'] + self.args)
self.assert_not_level(7)
self.assert_level(6, was=7)
self.assert_level(5, was=6)
self.assert_level(4, was=5)
self.assert_level(3, was=4)
self.assert_level(2, was=2)
self.assert_level(1, was=1)
self.assert_level(0, was=0)
self.assert_dropped_level(3)
def test_drop_level_missing(self):
self.make_levels([0, 1, 2, 4, 5, 6, 7])
for _ in range(2):
main([self.cachedir, '--drop-level', '3', '--rotate'] + self.args)
self.assert_not_level(7)
self.assert_level(6, was=7)
self.assert_level(5, was=6)
self.assert_level(4, was=5)
self.assert_level(3, was=4)
self.assert_level(2, was=2)
self.assert_level(1, was=1)
self.assert_level(0, was=0)
def test_drop_level_0(self):
self.make_levels([0, 1, 2, 3, 4, 5, 6, 7])
for _ in range(2):
main([self.cachedir, '--drop-level', '0', '--rotate'] + self.args)
self.assert_not_level(7)
self.assert_level(6, was=7)
self.assert_level(5, was=6)
self.assert_level(4, was=5)
self.assert_level(3, was=4)
self.assert_level(2, was=3)
self.assert_level(1, was=2)
self.assert_level(0, was=1)
self.assert_dropped_level(0)
class TestRotateSQLite(TestRotate):
type = SQLiteLevel
args = ['--type', 'sqlite']