[sql] Import SQLite 3.17.0.

third_party/sqlite/src/test/journal2.test

 # 2010 June 16
 #
 # 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 186 matching lines @@
   db2 close
 } {}
 db close
 
 #-------------------------------------------------------------------------
 # Test that it is possible to switch from journal_mode=truncate to
 # journal_mode=WAL on a SAFE_DELETE file-system. SQLite should close and
 # delete the journal file when committing the transaction that switches
 # the system to WAL mode.
 #
-ifcapable wal {
+if {[wal_is_capable]} {
   do_test journal2-2.1 {
     faultsim_delete_and_reopen
     set ::oplog [list]
     execsql { PRAGMA journal_mode = persist }
     set ::oplog
   } {}
   do_test journal2-2.2 {
     execsql { 
       CREATE TABLE t1(x);
       INSERT INTO t1 VALUES(3.14159);
     }
     set ::oplog
   } {xOpen test.db-journal}
   do_test journal2-2.3 {
     expr {[file size test.db-journal] > 512}
   } {1}
   do_test journal2-2.4 {
     set ::oplog [list]
     execsql { PRAGMA journal_mode = WAL }
     set ::oplog
   } {xClose test.db-journal xDelete test.db-journal}
   db close
 }
 
 tvfs delete
 finish_test