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+#
+# 2010 September 17
+#
+# 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 interactions between the FTS3/4 module
+# and shared-cache mode.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !fts3||!shared_cache {
+ finish_test
+ return
+}
+set ::testprefix fts3shared
+
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+# Open two connections to the database in shared-cache mode.
+#
+sqlite3 db test.db
+sqlite3 db2 test.db
+
+# Create a virtual FTS3 table. Populate it with some initial data.
+#
+do_execsql_test fts3shared-1.1 {
+ CREATE VIRTUAL TABLE t1 USING fts3(x);
+ BEGIN;
+ INSERT INTO t1 VALUES('We listened and looked sideways up!');
+ INSERT INTO t1 VALUES('Fear at my heart, as at a cup,');
+ INSERT INTO t1 VALUES('My life-blood seemed to sip!');
+ INSERT INTO t1 VALUES('The stars were dim, and thick the night');
+ COMMIT;
+} {}
+
+# Open a write transaction and insert rows into the FTS3 table. This takes
+# a write-lock on the underlying t1_content table.
+#
+do_execsql_test fts3shared-1.2 {
+ BEGIN;
+ INSERT INTO t1 VALUES('The steersman''s face by his lamp gleamed white;');
+} {}
+
+# Now try a SELECT on the full-text table. This particular SELECT does not
+# read data from the %_content table. But it still attempts to obtain a lock
+# on that table and so the SELECT fails.
+#
+do_test fts3shared-1.3 {
+ catchsql {
+ BEGIN;
+ SELECT rowid FROM t1 WHERE t1 MATCH 'stars'
+ } db2
+} {1 {database table is locked}}
+
+# Verify that the first connection can commit its transaction.
+#
+do_test fts3shared-1.4 { sqlite3_get_autocommit db } 0
+do_execsql_test fts3shared-1.5 { COMMIT } {}
+do_test fts3shared-1.6 { sqlite3_get_autocommit db } 1
+
+# Verify that the second connection still has an open transaction.
+#
+do_test fts3shared-1.6 { sqlite3_get_autocommit db2 } 0
+
+db close
+db2 close
+
+#-------------------------------------------------------------------------
+# The following tests - fts3shared-2.* - test that unless FTS is bypassed
+# and the underlying tables accessed directly, it is not possible for an
+# SQLITE_LOCKED error to be enountered when committing an FTS transaction.
+#
+# Any SQLITE_LOCKED error should be returned when the fts4 (or fts4aux)
+# table is first read/written within a transaction, not later on.
+#
+set LOCKED {1 {database table is locked}}
+forcedelete test.db
+sqlite3 dbR test.db
+sqlite3 dbW test.db
+do_test 2.1 {
+ execsql {
+ CREATE VIRTUAL TABLE t1 USING fts4;
+ CREATE TABLE t2ext(a, b);
+ CREATE VIRTUAL TABLE t2 USING fts4(content=t2ext);
+ CREATE VIRTUAL TABLE t1aux USING fts4aux(t1);
+ CREATE VIRTUAL TABLE t2aux USING fts4aux(t2);
+
+ INSERT INTO t1 VALUES('a b c');
+ INSERT INTO t2(rowid, a, b) VALUES(1, 'd e f', 'g h i');
+ } dbW
+} {}
+
+# Test that once [dbW] has written to the FTS table, no client may read
+# from the FTS or fts4aux table.
+do_test 2.2.1 {
+ execsql {
+ BEGIN;
+ INSERT INTO t1 VALUES('j k l');
+ } dbW
+ execsql BEGIN dbR
+} {}
+do_test 2.2.2 { catchsql "SELECT * FROM t1 WHERE rowid=1" dbR } $LOCKED
+do_test 2.2.3 { catchsql "SELECT * FROM t1 WHERE t1 MATCH 'a'" dbR } $LOCKED
+do_test 2.2.4 { catchsql "SELECT rowid FROM t1 WHERE t1 MATCH 'a'" dbR } $LOCKED
+do_test 2.2.5 { catchsql "SELECT * FROM t1" dbR } $LOCKED
+do_test 2.2.6 { catchsql "SELECT * FROM t1aux" dbR } $LOCKED
+do_test 2.2.7 { execsql COMMIT dbW } {}
+do_test 2.2.8 { execsql COMMIT dbR } {}
+
+# Same test as 2.2.*, except with a content= table.
+#
+do_test 2.3.1 {
+ execsql {
+ BEGIN;
+ INSERT INTO t2(rowid, a, b) VALUES(2, 'j k l', 'm n o');
+ } dbW
+ execsql BEGIN dbR
+} {}
+do_test 2.3.3 { catchsql "SELECT * FROM t2 WHERE t2 MATCH 'a'" dbR } $LOCKED
+do_test 2.3.4 { catchsql "SELECT rowid FROM t2 WHERE t2 MATCH 'a'" dbR } $LOCKED
+do_test 2.3.6 { catchsql "SELECT * FROM t2aux" dbR } $LOCKED
+do_test 2.3.7 { execsql COMMIT dbW } {}
+do_test 2.3.8 { execsql COMMIT dbR } {}
+
+# Test that once a connection has read from the FTS or fts4aux table,
+# another connection may not write to the FTS table.
+#
+foreach {tn sql} {
+ 1 "SELECT * FROM t1 WHERE rowid=1"
+ 2 "SELECT * FROM t1 WHERE t1 MATCH 'a'"
+ 3 "SELECT rowid FROM t1 WHERE t1 MATCH 'a'"
+ 4 "SELECT * FROM t1"
+ 5 "SELECT * FROM t1aux"
+} {
+
+ do_test 2.4.$tn {
+ execsql BEGIN dbR
+ execsql $::sql dbR
+ execsql BEGIN dbW
+ catchsql "INSERT INTO t1 VALUES('p q r')" dbW
+ } $LOCKED
+
+ execsql ROLLBACK dbR
+ execsql ROLLBACK dbW
+}
+
+# Same test as 2.4.*, except with a content= table.
+#
+foreach {tn sql} {
+ 2 "SELECT * FROM t2 WHERE t2 MATCH 'a'"
+ 3 "SELECT rowid FROM t2 WHERE t2 MATCH 'a'"
+ 5 "SELECT * FROM t2aux"
+} {
+
+ do_test 2.5.$tn {
+ execsql BEGIN dbR
+ execsql $::sql dbR
+ execsql BEGIN dbW
+ catchsql "INSERT INTO t2(rowid, a, b) VALUES(3, 's t u', 'v w x')" dbW
+ } $LOCKED
+
+ execsql ROLLBACK dbR
+ execsql ROLLBACK dbW
+}
+
+dbW close
+dbR close
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test