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#!/usr/bin/env python
#
# Public Domain 2008-2012 WiredTiger, Inc.
#
# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#
# test001.py
# Basic operations
#
import os
import wiredtiger, wttest
class test_compress01_base(wttest.WiredTigerTestCase):
"""
Test basic compression
"""
nrecords = 10000
# running tests from the base class uses no compressor,
# a reasonable way to test the test case.
def __init__(self, testname, compressor_name=None, abbrev='none'):
wttest.WiredTigerTestCase.__init__(self, testname)
self.compressor_name = compressor_name
self.table_name1 = 'test_compress01' + abbrev + '.wt'
# bigvalue = '1234567891011121314....'
self.bigvalue = ''.join([`num` for num in xrange(1,10000)]) # about 38K chars long
def create_table(self, tablename):
extra_params = ',internal_page_max=16384,leaf_page_max=131072'
comp_params = ''
if self.compressor_name != None:
comp_params = ',block_compressor=' + self.compressor_name
params = 'key_format=S,value_format=S' + extra_params + comp_params
self.pr('create_table: ' + tablename + ', params: ' + params)
self.session.create('file:' + tablename, params)
def cursor_s(self, tablename, key):
cursor = self.session.open_cursor('file:' + tablename, None)
cursor.set_key(key)
return cursor
def cursor_ss(self, tablename, key, val):
cursor = self.cursor_s(tablename, key)
cursor.set_value(val)
return cursor
def record_count(self):
return self.nrecords
def do_insert(self):
"""
Create a table, add keys with big values, get them back
"""
self.create_table(self.table_name1)
self.pr("inserting `len(self.bigvalue)` byte values")
for idx in xrange(1,self.record_count()):
val = `idx` + self.bigvalue + `idx`
inscursor = self.cursor_ss(self.table_name1, 'key' + `idx`, val)
inscursor.insert()
inscursor.close()
def do_verify(self):
self.pr('search')
for idx in xrange(1,self.record_count()):
val = `idx` + self.bigvalue + `idx`
getcursor = self.cursor_s(self.table_name1, 'key' + `idx`)
ret = getcursor.search()
self.assertTrue(ret == 0)
self.assertEquals(getcursor.get_value(), val)
getcursor.close()
def extensionArg(self, name):
if name != None:
testdir = os.path.dirname(__file__)
import run
extdir = os.path.join(run.wt_builddir, 'ext/compressors')
extfile = os.path.join(extdir, name, '.libs', name + '.so')
if not os.path.exists(extfile):
self.skipTest('Extension "' + extfile + '" not built')
return 'extensions=["' + extfile + '"]'
else:
return ''
# override WiredTigerTestCase
def setUpConnectionOpen(self, dir):
return self.setUpConnectionWithExtension(dir, self.compressor_name)
def setUpConnectionWithExtension(self, dir, name):
conn = wiredtiger.wiredtiger_open(
dir, 'create,' + self.extensionArg(name))
self.pr(`conn`)
return conn
# Put the tests in a class that doesn't inherit from unittest.TestCase so
# they will only be called by the concrete subclasses with real implementations.
#
# It doesn't make sense to call test_compress01_base.test_insert_and_verify --
# this is how to avoid that.
class compress01_tests(object):
def test_insert_and_verify(self):
self.do_insert()
# We want a fresh cache so compressed pages are read from disk.
self.reopen_conn()
self.do_verify()
class test_compress01_1_nop(test_compress01_base, compress01_tests):
def __init__(self, testname):
test_compress01_base.__init__(self, testname, 'nop_compress', 'nop')
class test_compress01_2_bz(test_compress01_base, compress01_tests):
def __init__(self, testname):
test_compress01_base.__init__(self, testname, 'bzip2_compress', 'bz')
class test_compress01_3_sn(test_compress01_base, compress01_tests):
def __init__(self, testname):
test_compress01_base.__init__(self, testname, 'snappy_compress', 'sn')
if __name__ == '__main__':
wttest.run(test_compress01_1_nop)
wttest.run(test_compress01_2_bz)
wttest.run(test_compress01_3_sn)
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