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Add test cases to restore coverage of pager.c and wal.c.

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FossilOrigin-Name: 6cae552927392d8b735aa118c318d7468097ebeb
This commit is contained in:
dan
2010-11-01 18:45:08 +00:00
parent 8c40800439
commit e08c2066c9
5 changed files with 134 additions and 10 deletions
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57
test/pager1.test
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@@ -2353,5 +2353,62 @@ do_test pager1-29.2 {
file size test.db
} [expr 4096*3]
#-------------------------------------------------------------------------
# Test that if an empty database file (size 0 bytes) is opened in
# exclusive-locking mode, any journal file is deleted from the file-system
# without being rolled back. And that the RESERVED lock obtained while
# doing this is not released.
#
do_test pager1-30.1 {
db close
file delete test.db
file delete test.db-journal
set fd [open test.db-journal w]
seek $fd [expr 512+1032*2]
puts -nonewline $fd x
close $fd
sqlite3 db test.db
execsql {
PRAGMA locking_mode=EXCLUSIVE;
SELECT count(*) FROM sqlite_master;
PRAGMA lock_status;
}
} {exclusive 0 main reserved temp closed}
#-------------------------------------------------------------------------
# Test that if the "page-size" field in a journal-header is 0, the journal
# file can still be rolled back. This is required for backward compatibility -
# versions of SQLite prior to 3.5.8 always set this field to zero.
#
do_test pager1-31.1 {
faultsim_delete_and_reopen
execsql {
PRAGMA cache_size = 10;
PRAGMA page_size = 1024;
CREATE TABLE t1(x, y, UNIQUE(x, y));
INSERT INTO t1 VALUES(randomblob(1500), randomblob(1500));
INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
INSERT INTO t1 SELECT randomblob(1500), randomblob(1500) FROM t1;
BEGIN;
UPDATE t1 SET y = randomblob(1499);
}
file copy test.db test.db2
file copy test.db-journal test.db2-journal
hexio_write test.db2-journal 24 00000000
sqlite3 db2 test.db2
execsql { PRAGMA integrity_check } db2
} {ok}
finish_test

29
test/walfault.test
View File

@@ -515,4 +515,33 @@ do_faultsim_test walfault-13.3 -prep {
if {!(($nRow==2 && $testrc) || $nRow==3)} { error "Bad db content" }
}
#-------------------------------------------------------------------------
# Test fault-handling when wrapping around to the start of a WAL file.
#
do_test walfault-14-pre {
faultsim_delete_and_reopen
execsql {
PRAGMA journal_mode = WAL;
BEGIN;
CREATE TABLE abc(a PRIMARY KEY);
INSERT INTO abc VALUES(randomblob(1500));
INSERT INTO abc VALUES(randomblob(1500));
COMMIT;
}
faultsim_save_and_close
} {}
do_faultsim_test walfault-14 -prep {
faultsim_restore_and_reopen
} -body {
db eval {
PRAGMA wal_checkpoint;
INSERT INTO abc VALUES(randomblob(1500));
}
} -test {
faultsim_test_result {0 {}}
faultsim_integrity_check
set nRow [db eval {SELECT count(*) FROM abc}]
if {!(($nRow==2 && $testrc) || $nRow==3)} { error "Bad db content" }
}
finish_test

40
test/walnoshm.test
View File

@@ -140,7 +140,45 @@ do_test 2.2.6 {
} {a b c d e f g h}
db2 close
db close
#-------------------------------------------------------------------------
#
# 3.1: Test that if locking_mode=EXCLUSIVE is set after the wal file is
# opened, it is possible to drop back to locking_mode=NORMAL.
#
# 3.2: Test that if locking_mode=EXCLUSIVE is set before the wal file is
# opened, it is not.
#
do_test 3.1 {
sqlite3 db test.db -vfs tvfsshm
execsql {
SELECT * FROM t1;
PRAGMA locking_mode = EXCLUSIVE;
INSERT INTO t1 VALUES(5, 6);
PRAGMA locking_mode = NORMAL;
INSERT INTO t1 VALUES(7, 8);
}
sqlite3 db2 test.db -vfs tvfsshm
execsql { SELECT * FROM t1 } db2
} {1 2 3 4 5 6 7 8}
db close
db2 close
do_test 3.2 {
sqlite3 db test.db -vfs tvfsshm
execsql {
PRAGMA locking_mode = EXCLUSIVE;
INSERT INTO t1 VALUES(9, 10);
PRAGMA locking_mode = NORMAL;
INSERT INTO t1 VALUES(11, 12);
}
sqlite3 db2 test.db -vfs tvfsshm
catchsql { SELECT * FROM t1 } db2
} {1 {database is locked}}
db close
db2 close
tvfs delete
tvfsshm delete
finish_test