Import SQLite 3.8.7.4.

third_party/sqlite/src/test/fts3shared.test

Index: third_party/sqlite/src/test/fts3shared.test
diff --git a/third_party/sqlite/src/test/fts3shared.test b/third_party/sqlite/src/test/fts3shared.test
index 5f75bd5fe6e94e8cdd917c9566405870a9193d04..0943c0510fcb6300b2be9bcbfd56c64c8c40c143 100644
--- a/third_party/sqlite/src/test/fts3shared.test
+++ b/third_party/sqlite/src/test/fts3shared.test
@@ -1,3 +1,4 @@
+#
 # 2010 September 17
 #
 #    May you do good and not evil.
@@ -5,6 +6,9 @@
 #    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]
@@ -14,6 +18,7 @@ ifcapable !fts3||!shared_cache {
   finish_test
   return
 }
+set ::testprefix fts3shared
 
 db close
 set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
@@ -67,6 +72,105 @@ 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
-