[sql] Import reference version of SQLite 3.17..

third_party/sqlite/sqlite-src-3170000/test/corruptJ.test

+# 2015-03-30
+#
+# 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.
+#
+#***********************************************************************
+#
+# Corruption consisting of a database page that thinks it is a child
+# of itself.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+set testprefix corruptJ
+
+if {[permutation]=="mmap"} {
+  finish_test
+  return
+}
+
+# This module uses hard-coded offsets which do not work if the reserved_bytes
+# value is nonzero.
+if {[nonzero_reserved_bytes]} {finish_test; return;}
+
+database_may_be_corrupt
+
+# Initialize the database.
+#
+do_execsql_test 1.1 {
+  PRAGMA page_size=1024;
+  PRAGMA auto_vacuum=0;
+  CREATE TABLE t1(a,b);
+  WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<10)
+    INSERT INTO t1(a,b) SELECT i, zeroblob(700) FROM c;
+} {}
+db close
+
+# Corrupt the root page of the t1 table such that the left-child pointer
+# for the very first cell points back to the root.  Then try to DROP the
+# table.  The clearDatabasePage() routine should not loop.
+#
+do_test 1.2 {
+  hexio_write test.db [expr {2*1024-2}] 02
+  sqlite3 db test.db
+  catchsql { DROP TABLE t1 }
+} {1 {database disk image is malformed}}
+
+# Similar test using a WITHOUT ROWID table
+#
+do_test 2.1 {
+  db close
+  forcedelete test.db
+  sqlite3 db test.db
+  db eval {
+    PRAGMA page_size=1024;
+    PRAGMA auto_vacuum=0;
+    CREATE TABLE t1(a,b,PRIMARY KEY(a,b)) WITHOUT ROWID;
+    WITH RECURSIVE c(i) AS (VALUES(1) UNION ALL SELECT i+1 FROM c WHERE i<100)
+      INSERT INTO t1(a,b) SELECT i, zeroblob(200) FROM c;
+  }
+} {}
+
+# The table is three levels deep.  Corrupt the left child of an intermediate
+# page so that it points back to the root page.
+#
+do_test 2.2 {
+  db close
+  hexio_read test.db [expr {9*1024+391}] 8
+} {00000008814D0401}
+do_test 2.2b {
+  hexio_write test.db [expr {9*1024+391}] 00000002
+  sqlite3 db test.db
+  catchsql { PRAGMA secure_delete=ON; DROP TABLE t1; }
+} {1 {database disk image is malformed}}
+
+finish_test