[sql] Import reference version of SQLite 3.8.7.4.

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

+# 2013-08-01
+#
+# 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.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptG
+
+# Do not use a codec for tests in this file, as the database file is
+# manipulated directly using tcl scripts (using the [hexio_write] command).
+#
+do_not_use_codec
+
+# These tests deal with corrupt database files
+#
+database_may_be_corrupt
+
+# Create a simple database with a single entry.  Then corrupt the
+# header-size varint on the index payload so that it maps into a
+# negative number.  Try to use the database.
+#
+
+do_execsql_test 1.1 {
+  PRAGMA page_size=512;
+  CREATE TABLE t1(a,b,c);
+  INSERT INTO t1(rowid,a,b,c) VALUES(52,'abc','xyz','123');
+  CREATE INDEX t1abc ON t1(a,b,c);
+}
+
+set idxroot [db one {SELECT rootpage FROM sqlite_master WHERE name = 't1abc'}]
+
+# Corrupt the file
+db close
+hexio_write test.db [expr {$idxroot*512 - 15}] 888080807f
+sqlite3 db test.db
+
+# Try to use the file.
+do_test 1.2 {
+  catchsql {
+    SELECT c FROM t1 WHERE a>'abc';
+  }
+} {1 {database disk image is malformed}}
+do_test 1.3 {
+  catchsql {
+     PRAGMA integrity_check
+  }
+} {1 {database disk image is malformed}}
+do_test 1.4 {
+  catchsql {
+    SELECT c FROM t1 ORDER BY a;
+  }
+} {1 {database disk image is malformed}}
+
+# Corrupt the same file in a slightly different way.  Make the record header
+# sane, but corrupt one of the serial_type value to indicate a huge payload
+# such that the payload begins in allocated space but overflows the buffer.
+#
+db close
+hexio_write test.db [expr {$idxroot*512-15}] 0513ff7f01
+sqlite3 db test.db
+
+do_test 2.1 {
+  catchsql {
+    SELECT rowid FROM t1 WHERE a='abc' and b='xyz123456789XYZ';
+  }
+} {1 {database disk image is malformed}}
+
+finish_test