Import SQLite 3.8.7.4.

third_party/sqlite/src/test/superlock.test

 # 2010 November 19
 #
 # 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.
 #
 #***********************************************************************
@@ skipping 30 matching lines @@
 #        superlock is released.
 #        
 #
 
 do_execsql_test 1.1 {
   CREATE TABLE t1(a, b);
   INSERT INTO t1 VALUES(1, 2);
   PRAGMA journal_mode = DELETE;
 } {delete}
 
+ifcapable !wal {
+  finish_test
+  return
+}
+
 do_test 1.2 { sqlite3demo_superlock unlock test.db } {unlock}
 do_catchsql_test 1.3 { SELECT * FROM t1 } {1 {database is locked}}
 do_test 1.4 { unlock } {}
 
 do_execsql_test 2.1 { 
   INSERT INTO t1 VALUES(3, 4);
   PRAGMA journal_mode = WAL;
 } {wal}
 
 do_test 2.2 { sqlite3demo_superlock unlock test.db } {unlock}
 do_catchsql_test 2.3 { SELECT * FROM t1 }           {1 {database is locked}}
 do_catchsql_test 2.4 { INSERT INTO t1 VALUES(5, 6)} {1 {database is locked}}
 do_catchsql_test 2.5 { PRAGMA wal_checkpoint }      {0 {1 -1 -1}}
 do_test 2.6 { unlock } {}
 
 do_execsql_test 3.1 { INSERT INTO t1 VALUES(3, 4) } 
 
 do_test 3.2 { sqlite3demo_superlock unlock test.db } {unlock}
 do_catchsql_test 3.3 { SELECT * FROM t1 }           {1 {database is locked}}
 do_catchsql_test 3.4 { INSERT INTO t1 VALUES(5, 6)} {1 {database is locked}}
 do_catchsql_test 3.5 { PRAGMA wal_checkpoint }      {0 {1 -1 -1}}
 do_test 3.6 { unlock } {}
 
-do_execsql_test 4.1 { PRAGMA wal_checkpoint } {0 2 2}
+# At this point the WAL file consists of a single frame only - written
+# by test case 3.1. If the ZERO_DAMAGE flag were not set, it would consist
+# of two frames - the frame written by 3.1 and a padding frame.
+do_execsql_test 4.1 { PRAGMA wal_checkpoint } {0 1 1}
 
 do_test 4.2 { sqlite3demo_superlock unlock test.db } {unlock}
 do_catchsql_test 4.3 { SELECT * FROM t1 }           {1 {database is locked}}
 do_catchsql_test 4.4 { INSERT INTO t1 VALUES(5, 6)} {1 {database is locked}}
 do_catchsql_test 4.5 { PRAGMA wal_checkpoint }      {0 {1 -1 -1}}
 do_test 4.6 { unlock } {}
 
 do_multiclient_test tn {
 
   proc busyhandler {x} {
@@ skipping 155 matching lines @@
 
 db_swap test.db2 test.db
 do_catchsql_test 6.12 { SELECT * FROM t1 } {1 {no such table: t1}}
 do_catchsql_test 6.13 { SELECT * FROM t2 } {0 {a b}}
 
 db_swap test.db2 test.db
 do_catchsql_test 6.14 { SELECT * FROM t1 } {0 {1 2 3 4 5 6}}
 do_catchsql_test 6.15 { SELECT * FROM t2 } {1 {no such table: t2}}
 
 finish_test