309 lines
13 KiB
Python
309 lines
13 KiB
Python
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import os
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import os.path
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import shutil
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import subprocess
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import time
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import unittest
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import tempfile
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def my_check_output(*popenargs, **kwargs):
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"""
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If we had python 2.7, we should simply use subprocess.check_output.
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This is a stop-gap solution for python 2.6
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"""
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if 'stdout' in kwargs:
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raise ValueError('stdout argument not allowed, it will be overridden.')
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process = subprocess.Popen(stdout=subprocess.PIPE, *popenargs, **kwargs)
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output, unused_err = process.communicate()
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retcode = process.poll()
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if retcode:
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cmd = kwargs.get("args")
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if cmd is None:
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cmd = popenargs[0]
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raise Exception("Exit code is not 0. It is %d. Command: %s" %
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(retcode, cmd))
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return output
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class LDBTestCase(unittest.TestCase):
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def setUp(self):
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self.TMP_DIR = tempfile.mkdtemp(prefix="ldb_test_")
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self.DB_NAME = "testdb"
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def tearDown(self):
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assert(self.TMP_DIR.strip() != "/"
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and self.TMP_DIR.strip() != "/tmp"
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and self.TMP_DIR.strip() != "/tmp/") #Just some paranoia
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shutil.rmtree(self.TMP_DIR)
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def dbParam(self, dbName):
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return "--db=%s" % os.path.join(self.TMP_DIR, dbName)
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def assertRunOKFull(self, params, expectedOutput):
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"""
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All command-line params must be specified.
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Allows full flexibility in testing; for example: missing db param.
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"""
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output = my_check_output("./ldb %s |grep -v \"Created bg thread\"" %
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params, shell=True)
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self.assertEquals(output.strip(), expectedOutput.strip());
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def assertRunFAILFull(self, params):
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"""
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All command-line params must be specified.
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Allows full flexibility in testing; for example: missing db param.
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"""
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try:
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my_check_output("./ldb %s |grep -v \"Created bg thread\"" % params,
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shell=True)
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except Exception, e:
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return
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self.fail(
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"Exception should have been raised for command with params: %s" %
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params)
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def assertRunOK(self, params, expectedOutput):
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"""
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Uses the default test db.
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"""
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self.assertRunOKFull("%s %s" % (self.dbParam(self.DB_NAME), params),
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expectedOutput)
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def assertRunFAIL(self, params):
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"""
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Uses the default test db.
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"""
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self.assertRunFAILFull("%s %s" % (self.dbParam(self.DB_NAME), params))
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def testSimpleStringPutGet(self):
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self.assertRunFAIL("put x1 y1")
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self.assertRunOK("put --create_if_missing x1 y1", "OK")
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self.assertRunOK("get x1", "y1")
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self.assertRunFAIL("get x2")
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self.assertRunOK("put x2 y2", "OK")
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self.assertRunOK("get x1", "y1")
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self.assertRunOK("get x2", "y2")
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self.assertRunFAIL("get x3")
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self.assertRunOK("scan --from=x1 --to=z", "x1 : y1\nx2 : y2")
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self.assertRunOK("put x3 y3", "OK")
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self.assertRunOK("scan --from=x1 --to=z", "x1 : y1\nx2 : y2\nx3 : y3")
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self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3")
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self.assertRunOK("scan --from=x", "x1 : y1\nx2 : y2\nx3 : y3")
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self.assertRunOK("scan --to=x2", "x1 : y1")
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self.assertRunOK("scan --from=x1 --to=z --max_keys=1", "x1 : y1")
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self.assertRunOK("scan --from=x1 --to=z --max_keys=2",
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"x1 : y1\nx2 : y2")
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self.assertRunOK("scan --from=x1 --to=z --max_keys=3",
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"x1 : y1\nx2 : y2\nx3 : y3")
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self.assertRunOK("scan --from=x1 --to=z --max_keys=4",
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"x1 : y1\nx2 : y2\nx3 : y3")
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self.assertRunOK("scan --from=x1 --to=x2", "x1 : y1")
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self.assertRunOK("scan --from=x2 --to=x4", "x2 : y2\nx3 : y3")
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self.assertRunFAIL("scan --from=x4 --to=z") # No results => FAIL
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self.assertRunFAIL("scan --from=x1 --to=z --max_keys=foo")
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self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3")
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self.assertRunOK("delete x1", "OK")
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self.assertRunOK("scan", "x2 : y2\nx3 : y3")
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self.assertRunOK("delete NonExistentKey", "OK")
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# It is wierd that GET and SCAN raise exception for
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# non-existent key, while delete does not
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def dumpDb(self, params, dumpFile):
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return 0 == os.system("./ldb dump %s > %s" % (params, dumpFile))
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def loadDb(self, params, dumpFile):
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return 0 == os.system("cat %s | ./ldb load %s" % (dumpFile, params))
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def testStringBatchPut(self):
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self.assertRunOK("batchput x1 y1 --create_if_missing", "OK")
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self.assertRunOK("scan", "x1 : y1")
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self.assertRunOK("batchput x2 y2 x3 y3 \"x4 abc\" \"y4 xyz\"", "OK")
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self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 abc : y4 xyz")
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self.assertRunFAIL("batchput")
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self.assertRunFAIL("batchput k1")
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self.assertRunFAIL("batchput k1 v1 k2")
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def testHexPutGet(self):
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self.assertRunOK("put a1 b1 --create_if_missing", "OK")
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self.assertRunOK("scan", "a1 : b1")
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self.assertRunOK("scan --hex", "0x6131 : 0x6231")
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self.assertRunFAIL("put --hex 6132 6232")
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self.assertRunOK("put --hex 0x6132 0x6232", "OK")
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self.assertRunOK("scan --hex", "0x6131 : 0x6231\n0x6132 : 0x6232")
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self.assertRunOK("scan", "a1 : b1\na2 : b2")
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self.assertRunOK("get a1", "b1")
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self.assertRunOK("get --hex 0x6131", "0x6231")
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self.assertRunOK("get a2", "b2")
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self.assertRunOK("get --hex 0x6132", "0x6232")
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self.assertRunOK("get --key_hex 0x6132", "b2")
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self.assertRunOK("get --key_hex --value_hex 0x6132", "0x6232")
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self.assertRunOK("get --value_hex a2", "0x6232")
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self.assertRunOK("scan --key_hex --value_hex",
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"0x6131 : 0x6231\n0x6132 : 0x6232")
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self.assertRunOK("scan --hex --from=0x6131 --to=0x6133",
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"0x6131 : 0x6231\n0x6132 : 0x6232")
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self.assertRunOK("scan --hex --from=0x6131 --to=0x6132",
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"0x6131 : 0x6231")
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self.assertRunOK("scan --key_hex", "0x6131 : b1\n0x6132 : b2")
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self.assertRunOK("scan --value_hex", "a1 : 0x6231\na2 : 0x6232")
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self.assertRunOK("batchput --hex 0x6133 0x6233 0x6134 0x6234", "OK")
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self.assertRunOK("scan", "a1 : b1\na2 : b2\na3 : b3\na4 : b4")
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self.assertRunOK("delete --hex 0x6133", "OK")
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self.assertRunOK("scan", "a1 : b1\na2 : b2\na4 : b4")
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def testInvalidCmdLines(self):
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# db not specified
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self.assertRunFAILFull("put 0x6133 0x6233 --hex --create_if_missing")
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# No param called he
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self.assertRunFAIL("put 0x6133 0x6233 --he --create_if_missing")
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# max_keys is not applicable for put
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self.assertRunFAIL("put 0x6133 0x6233 --max_keys=1 --create_if_missing")
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# hex has invalid boolean value
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self.assertRunFAIL("put 0x6133 0x6233 --hex=Boo --create_if_missing")
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def testDumpLoad(self):
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self.assertRunOK("batchput --create_if_missing x1 y1 x2 y2 x3 y3 x4 y4",
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"OK")
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self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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origDbPath = os.path.join(self.TMP_DIR, self.DB_NAME)
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# Dump and load without any additional params specified
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dumpFilePath = os.path.join(self.TMP_DIR, "dump1")
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loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump1")
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self.assertTrue(self.dumpDb("--db=%s" % origDbPath, dumpFilePath))
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self.assertTrue(self.loadDb(
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"--db=%s --create_if_missing" % loadedDbPath, dumpFilePath))
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self.assertRunOKFull("scan --db=%s" % loadedDbPath,
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"x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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# Dump and load in hex
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dumpFilePath = os.path.join(self.TMP_DIR, "dump2")
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loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump2")
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self.assertTrue(self.dumpDb("--db=%s --hex" % origDbPath, dumpFilePath))
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self.assertTrue(self.loadDb(
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"--db=%s --hex --create_if_missing" % loadedDbPath, dumpFilePath))
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self.assertRunOKFull("scan --db=%s" % loadedDbPath,
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"x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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# Dump only a portion of the key range
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dumpFilePath = os.path.join(self.TMP_DIR, "dump3")
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loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump3")
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self.assertTrue(self.dumpDb(
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"--db=%s --from=x1 --to=x3" % origDbPath, dumpFilePath))
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self.assertTrue(self.loadDb(
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"--db=%s --create_if_missing" % loadedDbPath, dumpFilePath))
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self.assertRunOKFull("scan --db=%s" % loadedDbPath, "x1 : y1\nx2 : y2")
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# Dump upto max_keys rows
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dumpFilePath = os.path.join(self.TMP_DIR, "dump4")
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loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump4")
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self.assertTrue(self.dumpDb(
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"--db=%s --max_keys=3" % origDbPath, dumpFilePath))
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self.assertTrue(self.loadDb(
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"--db=%s --create_if_missing" % loadedDbPath, dumpFilePath))
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self.assertRunOKFull("scan --db=%s" % loadedDbPath,
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"x1 : y1\nx2 : y2\nx3 : y3")
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# Load into an existing db, create_if_missing is not specified
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self.assertTrue(self.dumpDb("--db=%s" % origDbPath, dumpFilePath))
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self.assertTrue(self.loadDb("--db=%s" % loadedDbPath, dumpFilePath))
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self.assertRunOKFull("scan --db=%s" % loadedDbPath,
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"x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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# Dump and load with WAL disabled
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dumpFilePath = os.path.join(self.TMP_DIR, "dump5")
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loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump5")
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self.assertTrue(self.dumpDb("--db=%s" % origDbPath, dumpFilePath))
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self.assertTrue(self.loadDb(
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"--db=%s --disable_wal --create_if_missing" % loadedDbPath,
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dumpFilePath))
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self.assertRunOKFull("scan --db=%s" % loadedDbPath,
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"x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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# Dump and load with lots of extra params specified
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extraParams = " ".join(["--bloom_bits=14", "--compression_type=bzip2",
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"--block_size=1024", "--auto_compaction=true",
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"--write_buffer_size=4194304",
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"--file_size=2097152"])
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dumpFilePath = os.path.join(self.TMP_DIR, "dump6")
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loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump6")
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self.assertTrue(self.dumpDb(
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"--db=%s %s" % (origDbPath, extraParams), dumpFilePath))
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self.assertTrue(self.loadDb(
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"--db=%s %s --create_if_missing" % (loadedDbPath, extraParams),
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dumpFilePath))
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self.assertRunOKFull("scan --db=%s" % loadedDbPath,
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"x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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# Dump with count_only
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dumpFilePath = os.path.join(self.TMP_DIR, "dump7")
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loadedDbPath = os.path.join(self.TMP_DIR, "loaded_from_dump7")
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self.assertTrue(self.dumpDb(
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"--db=%s --count_only" % origDbPath, dumpFilePath))
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self.assertTrue(self.loadDb(
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"--db=%s --create_if_missing" % loadedDbPath, dumpFilePath))
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# DB should have atleast one value for scan to work
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self.assertRunOKFull("put --db=%s k1 v1" % loadedDbPath, "OK")
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self.assertRunOKFull("scan --db=%s" % loadedDbPath, "k1 : v1")
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# Dump command fails because of typo in params
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dumpFilePath = os.path.join(self.TMP_DIR, "dump8")
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self.assertFalse(self.dumpDb(
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"--db=%s --create_if_missin" % origDbPath, dumpFilePath))
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def testMiscAdminTask(self):
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# These tests need to be improved; for example with asserts about
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# whether compaction or level reduction actually took place.
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self.assertRunOK("batchput --create_if_missing x1 y1 x2 y2 x3 y3 x4 y4",
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"OK")
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self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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origDbPath = os.path.join(self.TMP_DIR, self.DB_NAME)
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self.assertTrue(0 == os.system("./ldb compact --db=%s" % origDbPath))
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self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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self.assertTrue(0 == os.system(
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"./ldb reduce_levels --db=%s --new_levels=2" % origDbPath))
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self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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self.assertTrue(0 == os.system(
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"./ldb reduce_levels --db=%s --new_levels=3" % origDbPath))
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self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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self.assertTrue(0 == os.system(
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"./ldb compact --db=%s --from=x1 --to=x3" % origDbPath))
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self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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self.assertTrue(0 == os.system(
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"./ldb compact --db=%s --hex --from=0x6131 --to=0x6134" %
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origDbPath))
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self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
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#TODO(dilip): Not sure what should be passed to WAL.Currently corrupted.
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self.assertTrue(0 == os.system(
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"./ldb dump_wal --db=%s --walfile=%s --header" % (
|
||
|
|
origDbPath, os.path.join(origDbPath, "LOG"))))
|
||
|
|
self.assertRunOK("scan", "x1 : y1\nx2 : y2\nx3 : y3\nx4 : y4")
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
unittest.main()
|
||
|
|
|