diff options
Diffstat (limited to 'src/third_party/wiredtiger/test/suite/test_verify.py')
-rw-r--r-- | src/third_party/wiredtiger/test/suite/test_verify.py | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/suite/test_verify.py b/src/third_party/wiredtiger/test/suite/test_verify.py new file mode 100644 index 00000000000..48a965141f0 --- /dev/null +++ b/src/third_party/wiredtiger/test/suite/test_verify.py @@ -0,0 +1,198 @@ +#!/usr/bin/env python +# +# Public Domain 2014-2015 MongoDB, Inc. +# Public Domain 2008-2014 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. + +import os, struct +from suite_subprocess import suite_subprocess +import wiredtiger, wttest + +# test_verify.py +# Utilities: wt verify +class test_verify(wttest.WiredTigerTestCase, suite_subprocess): + tablename = 'test_verify.a' + nentries = 1000 + + def populate(self, tablename): + """ + Insert some simple entries into the table + """ + cursor = self.session.open_cursor('table:' + tablename, None, None) + key = '' + for i in range(0, self.nentries): + key += str(i) + cursor[key] = key + key + cursor.close() + + def check_populate(self, tablename): + """ + Verify that items added by populate are still there + """ + cursor = self.session.open_cursor('table:' + tablename, None, None) + wantkey = '' + i = 0 + for gotkey, gotval in cursor: + wantkey += str(i) + wantval = wantkey + wantkey + self.assertEqual(gotkey, wantkey) + self.assertEqual(gotval, wantval) + i += 1 + self.assertEqual(i, self.nentries) + cursor.close() + + def open_and_position(self, tablename, pct): + """ + Open the file for the table, position it at a 4K page + at roughly the given percentage into the file. + As a side effect, the connection is closed. + """ + # we close the connection to guarantee everything is + # flushed and closed from the WT point of view. + if self.conn != None: + self.conn.close() + self.conn = None + filename = tablename + ".wt" + + filesize = os.path.getsize(filename) + position = (filesize * pct) / 100 + + self.pr('damaging file at: ' + str(position)) + fp = open(filename, "r+b") + fp.seek(position) + return fp + + def test_verify_process_empty(self): + """ + Test verify in a 'wt' process, using an empty table + """ + params = 'key_format=S,value_format=S' + self.session.create('table:' + self.tablename, params) + # Run verify with an empty table + self.runWt(["verify", "table:" + self.tablename]) + + def test_verify_process(self): + """ + Test verify in a 'wt' process, using a populated table. + """ + params = 'key_format=S,value_format=S' + self.session.create('table:' + self.tablename, params) + self.populate(self.tablename) + self.runWt(["verify", "table:" + self.tablename]) + + def test_verify_api_empty(self): + """ + Test verify via API, using an empty table + """ + params = 'key_format=S,value_format=S' + self.session.create('table:' + self.tablename, params) + self.session.verify('table:' + self.tablename, None) + + def test_verify_api(self): + """ + Test verify via API, using a populated table. + """ + params = 'key_format=S,value_format=S' + self.session.create('table:' + self.tablename, params) + self.populate(self.tablename) + self.session.verify('table:' + self.tablename, None) + self.check_populate(self.tablename) + + def test_verify_api_75pct_null(self): + """ + Test verify via API, on a damaged table. + This is our only 'negative' test for verify using the API, + it's uncertain that we can have reliable tests for this. + """ + params = 'key_format=S,value_format=S' + self.session.create('table:' + self.tablename, params) + self.populate(self.tablename) + with self.open_and_position(self.tablename, 75) as f: + for i in range(0, 4096): + f.write(struct.pack('B', 0)) + + # open_and_position closed the session/connection, reopen them now. + self.conn = self.setUpConnectionOpen(".") + self.session = self.setUpSessionOpen(self.conn) + self.assertRaisesWithMessage(wiredtiger.WiredTigerError, + lambda: self.session.verify('table:' + self.tablename, None), + "/session.verify/") + + def test_verify_process_75pct_null(self): + """ + Test verify in a 'wt' process on a table that is purposely damaged, + with nulls at a position about 75% through. + """ + params = 'key_format=S,value_format=S' + self.session.create('table:' + self.tablename, params) + self.populate(self.tablename) + with self.open_and_position(self.tablename, 75) as f: + for i in range(0, 4096): + f.write(struct.pack('B', 0)) + self.runWt(["verify", "table:" + self.tablename], errfilename="verifyerr.out") + self.check_non_empty_file("verifyerr.out") + + def test_verify_process_25pct_junk(self): + """ + Test verify in a 'wt' process on a table that is purposely damaged, + with junk at a position about 25% through. + """ + params = 'key_format=S,value_format=S' + self.session.create('table:' + self.tablename, params) + self.populate(self.tablename) + with self.open_and_position(self.tablename, 25) as f: + for i in range(0, 100): + f.write('\x01\xff\x80') + self.runWt(["verify", "table:" + self.tablename], errfilename="verifyerr.out") + self.check_non_empty_file("verifyerr.out") + + def test_verify_process_truncated(self): + """ + Test verify in a 'wt' process on a table that is purposely damaged, + truncated about 75% through. + """ + params = 'key_format=S,value_format=S' + self.session.create('table:' + self.tablename, params) + self.populate(self.tablename) + with self.open_and_position(self.tablename, 75) as f: + f.truncate(0) + self.runWt(["verify", "table:" + self.tablename], errfilename="verifyerr.out") + self.check_non_empty_file("verifyerr.out") + + def test_verify_process_zero_length(self): + """ + Test verify in a 'wt' process on a zero-length table. + """ + params = 'key_format=S,value_format=S' + self.session.create('table:' + self.tablename, params) + self.populate(self.tablename) + with self.open_and_position(self.tablename, 0) as f: + f.truncate(0) + self.runWt(["verify", "table:" + self.tablename], errfilename="verifyerr.out") + self.check_non_empty_file("verifyerr.out") + + +if __name__ == '__main__': + wttest.run() |