Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(4)

Unified Diff: third_party/sqlite/sqlite-src-3100200/test/snapshot_fault.test

Issue 1610543003: [sql] Import reference version of SQLite 3.10.2. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
Index: third_party/sqlite/sqlite-src-3100200/test/snapshot_fault.test
diff --git a/third_party/sqlite/sqlite-src-3100200/test/snapshot_fault.test b/third_party/sqlite/sqlite-src-3100200/test/snapshot_fault.test
new file mode 100644
index 0000000000000000000000000000000000000000..3ac13daefd42400fb7060b7ad49562dfac45c27f
--- /dev/null
+++ b/third_party/sqlite/sqlite-src-3100200/test/snapshot_fault.test
@@ -0,0 +1,164 @@
+# 2015 December 10
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+# May you do good and not evil.
+# May you find forgiveness for yourself and forgive others.
+# May you share freely, never taking more than you give.
+#
+#***********************************************************************
+# This file implements regression tests for SQLite library. The focus
+# of this file is the sqlite3_snapshot_xxx() APIs.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+ifcapable !snapshot {finish_test; return}
+set testprefix snapshot_fault
+
+#-------------------------------------------------------------------------
+# Check that an sqlite3_snapshot_open() client cannot be tricked into
+# reading a corrupt snapshot even if a second client fails while
+# checkpointing the db.
+#
+do_faultsim_test 1.0 -prep {
+ faultsim_delete_and_reopen
+ sqlite3 db2 test.db
+ db2 eval {
+ CREATE TABLE t1(a, b UNIQUE, c UNIQUE);
+ INSERT INTO t1 VALUES(1, randomblob(500), randomblob(500));
+ INSERT INTO t1 VALUES(2, randomblob(500), randomblob(500));
+ PRAGMA journal_mode = wal;
+ INSERT INTO t1 VALUES(3, randomblob(500), randomblob(500));
+ BEGIN;
+ SELECT a FROM t1;
+ }
+ set ::snapshot [sqlite3_snapshot_get db2 main]
+ db2 eval COMMIT
+ db2 eval {
+ UPDATE t1 SET b=randomblob(501), c=randomblob(501) WHERE a=1;
+ INSERT INTO t1 VALUES(4, randomblob(500), randomblob(500));
+ INSERT INTO t1 VALUES(5, randomblob(500), randomblob(500));
+ INSERT INTO t1 VALUES(6, randomblob(500), randomblob(500));
+ }
+} -body {
+ db eval { PRAGMA wal_checkpoint }
+} -test {
+ db2 eval BEGIN
+ if {[catch { sqlite3_snapshot_open db2 main $::snapshot } msg]} {
+ if {$msg != "SQLITE_BUSY_SNAPSHOT" && $msg != "SQLITE_BUSY"} {
+ error "error is $msg"
+ }
+ } else {
+ set res [db2 eval {
+ SELECT a FROM t1;
+ PRAGMA integrity_check;
+ }]
+ if {$res != "1 2 3 ok"} { error "res is $res" }
+ }
+
+ sqlite3_snapshot_free $::snapshot
+}
+
+#-------------------------------------------------------------------------
+# This test is similar to the previous one. Except, after the
+# "PRAGMA wal_checkpoint" command fails the db is closed and reopened
+# so as to require wal file recovery. It should not be possible to open
+# a snapshot that is part of the body of a recovered wal file.
+#
+do_faultsim_test 2.0 -prep {
+ faultsim_delete_and_reopen
+ db eval {
+ CREATE TABLE t1(a, b UNIQUE, c UNIQUE);
+ INSERT INTO t1 VALUES(1, randomblob(500), randomblob(500));
+ INSERT INTO t1 VALUES(2, randomblob(500), randomblob(500));
+ PRAGMA journal_mode = wal;
+ INSERT INTO t1 VALUES(3, randomblob(500), randomblob(500));
+ BEGIN;
+ SELECT a FROM t1;
+ }
+ set ::snapshot [sqlite3_snapshot_get db main]
+ db eval COMMIT
+
+ db eval {
+ UPDATE t1 SET b=randomblob(501), c=randomblob(501) WHERE a=1;
+ INSERT INTO t1 VALUES(4, randomblob(500), randomblob(500));
+ INSERT INTO t1 VALUES(5, randomblob(500), randomblob(500));
+ INSERT INTO t1 VALUES(6, randomblob(500), randomblob(500));
+ }
+} -body {
+ db eval { PRAGMA wal_checkpoint }
+} -test {
+
+ db_save
+ db close
+ db_restore_and_reopen
+ db eval { SELECT * FROM t1 }
+
+ db eval BEGIN
+ if {[catch { sqlite3_snapshot_open db main $::snapshot } msg]} {
+ if {$msg != "SQLITE_BUSY_SNAPSHOT" && $msg != "SQLITE_BUSY"} {
+ error "error is $msg"
+ }
+ } else {
+ # This branch should actually never be taken. But it was useful in
+ # determining whether or not this test was actually working (by
+ # running a modified version of SQLite that allowed snapshots to be
+ # opened following a recovery).
+ error "TEST HAS FAILED"
+
+ set res [db eval {
+ SELECT a FROM t1;
+ PRAGMA integrity_check;
+ }]
+ if {$res != "1 2 3 ok"} { error "res is $res" }
+ }
+
+ sqlite3_snapshot_free $::snapshot
+}
+
+#-------------------------------------------------------------------------
+# Test the handling of faults that occur within sqlite3_snapshot_open().
+#
+do_faultsim_test 3.0 -prep {
+ faultsim_delete_and_reopen
+ db eval {
+ CREATE TABLE t1(a, b UNIQUE, c UNIQUE);
+ INSERT INTO t1 VALUES(1, randomblob(500), randomblob(500));
+ INSERT INTO t1 VALUES(2, randomblob(500), randomblob(500));
+ PRAGMA journal_mode = wal;
+ INSERT INTO t1 VALUES(3, randomblob(500), randomblob(500));
+ BEGIN;
+ SELECT a FROM t1;
+ }
+ set ::snapshot [sqlite3_snapshot_get db main]
+ db eval COMMIT
+ db eval {
+ UPDATE t1 SET b=randomblob(501), c=randomblob(501) WHERE a=1;
+ INSERT INTO t1 VALUES(4, randomblob(500), randomblob(500));
+ INSERT INTO t1 VALUES(5, randomblob(500), randomblob(500));
+ INSERT INTO t1 VALUES(6, randomblob(500), randomblob(500));
+ BEGIN;
+ }
+} -body {
+ if { [catch { sqlite3_snapshot_open db main $::snapshot } msg] } {
+ error $msg
+ }
+} -test {
+ faultsim_test_result {0 {}} {1 SQLITE_IOERR} \
+ {1 SQLITE_IOERR_NOMEM} {1 SQLITE_IOERR_READ}
+ if {$testrc==0} {
+ set res [db eval {
+ SELECT a FROM t1;
+ PRAGMA integrity_check;
+ }]
+ if {$res != "1 2 3 ok"} { error "res is $res" }
+ }
+
+ sqlite3_snapshot_free $::snapshot
+}
+
+
+
+finish_test
« no previous file with comments | « third_party/sqlite/sqlite-src-3100200/test/snapshot.test ('k') | third_party/sqlite/sqlite-src-3100200/test/soak.test » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698