[sql] Import reference version of SQLite 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/test/queryonly.test

+# 2013-07-11
+#
+# 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.
+#
+# This file tests the "query_only" pragma.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+do_execsql_test queryonly-1.1 {
+  CREATE TABLE t1(a);
+  INSERT INTO t1 VALUES(123),(456);
+  SELECT a FROM t1 ORDER BY a;
+} {123 456}
+do_execsql_test queryonly-1.2 {
+  PRAGMA query_only;
+} {0}
+do_execsql_test queryonly-1.3 {
+  PRAGMA query_only=ON;
+  PRAGMA query_only;
+} {1}
+do_test queryonly-1.4 {
+  catchsql {INSERT INTO t1 VALUES(789);}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.5 {
+  catchsql {DELETE FROM t1;}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.6 {
+  catchsql {UPDATE t1 SET a=a+1;}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.7 {
+  catchsql {CREATE TABLE t2(b);}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.8 {
+  catchsql {CREATE INDEX t1a ON t1(a);}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.9 {
+  catchsql {DROP TABLE t1;}
+} {1 {attempt to write a readonly database}}
+do_test queryonly-1.10 {
+  catchsql {ANALYZE;}
+} {1 {attempt to write a readonly database}}
+do_execsql_test queryonly-1.11 {
+  SELECT a FROM t1 ORDER BY a;
+} {123 456}
+
+do_execsql_test queryonly-2.2 {
+  PRAGMA query_only;
+} {1}
+do_execsql_test queryonly-2.3 {
+  PRAGMA query_only=OFF;
+  PRAGMA query_only;
+} {0}
+do_execsql_test queryonly-2.4 {
+  INSERT INTO t1 VALUES(789);
+  SELECT a FROM t1 ORDER BY a;
+} {123 456 789}
+do_execsql_test queryonly-2.5 {
+  UPDATE t1 SET a=a+1;
+  SELECT a FROM t1 ORDER BY a;
+} {124 457 790}
+
+finish_test