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Overview
| Comment: | Test that a corrupted WAL hash-table does not put the library into an infinite loop. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
c73886ed7497c0daf798c3b02ca6f5a1 |
| User & Date: | dan 2010-07-14 07:06:48.000 |
Context
|
2010-07-14
| ||
| 08:20 | Add tests to pagerfault.test. (check-in: b092f2a74b user: dan tags: trunk) | |
| 07:06 | Test that a corrupted WAL hash-table does not put the library into an infinite loop. (check-in: c73886ed74 user: dan tags: trunk) | |
| 06:20 | Fix a typo in the IS_BIG_INT macro used by coverage test instrumentation. (check-in: 5314ca3928 user: dan tags: trunk) | |
Changes
Changes to test/wal2.test.
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breakpoint
do_test wal2-10.2.3 {
lset hdr 0 3007001
wal_fix_walindex_cksum hdr
set_tvfs_hdr $::filename $hdr
catchsql { SELECT * FROM t1 }
} {1 {unable to open database file}}
finish_test
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breakpoint
do_test wal2-10.2.3 {
lset hdr 0 3007001
wal_fix_walindex_cksum hdr
set_tvfs_hdr $::filename $hdr
catchsql { SELECT * FROM t1 }
} {1 {unable to open database file}}
db close
tvfs delete
#-------------------------------------------------------------------------
# This block of tests - wal2-11.* - tests that it is not possible to put
# the library into an infinite loop by presenting it with a corrupt
# hash table (one that appears to contain a single chain of infinite
# length).
#
# wal2-11.1.*: While reading the hash-table.
#
# wal2-11.2.*: While writing the hash-table.
#
testvfs tvfs -default 1
do_test wal2-11.0 {
faultsim_delete_and_reopen
execsql {
PRAGMA journal_mode = WAL;
CREATE TABLE t1(a, b, c);
INSERT INTO t1 VALUES(1, 2, 3);
INSERT INTO t1 VALUES(4, 5, 6);
INSERT INTO t1 VALUES(7, 8, 9);
SELECT * FROM t1;
}
} {wal 1 2 3 4 5 6 7 8 9}
do_test wal2-11.1.1 {
sqlite3 db2 test.db
execsql { SELECT name FROM sqlite_master } db2
} {t1}
# Fill up the hash table on the first page of shared memory with 0x55 bytes.
#
set blob [string range [tvfs shm $::filename] 0 16383]
append blob [string repeat [binary format c 0x55] 16384]
tvfs shm $::filename $blob
do_test wal2-11.2 {
catchsql { SELECT * FROM t1 } db2
} {1 {database disk image is malformed}}
do_test wal2-12.1 {
catchsql { INSERT INTO t1 VALUES(10, 11, 12) }
} {1 {database disk image is malformed}}
db close
db2 close
tvfs delete
finish_test
|