[sql] Import reference version of SQLite 3.17..

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

+
+# 2015-05-28
+#
+# 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.  The
+# focus of this file is testing locks on read-only WAL-mode databases.
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+source $testdir/lock_common.tcl
+set testprefix rowallock
+
+set mmap_res 1000000
+ifcapable !mmap {
+  set mmap_res 0
+}
+
+do_multiclient_test tn {
+  code2 { db2 close }
+  code3 { db3 close }
+  
+  do_execsql_test 1.$tn.1 {
+    PRAGMA page_size = 4096;
+    CREATE TABLE t1(a, b);
+    CREATE TABLE t2(a, b);
+    INSERT INTO t1 VALUES(1, 2), (3, 4);
+    PRAGMA journal_mode = wal;
+  } {wal}
+
+  code1 { 
+    db close 
+    sqlite3 db test.db -readonly 1
+  }
+
+  do_execsql_test 1.$tn.2 {
+    PRAGMA mmap_size = 1000000;
+  } $mmap_res
+  do_execsql_test 1.$tn.2.1 {
+    SELECT * FROM t1;
+  } {1 2 3 4}
+
+  do_catchsql_test 1.$tn.3 {
+    INSERT INTO t1 VALUES(5, 6);
+  } {1 {attempt to write a readonly database}}
+
+  do_test 1.$tn.4 {
+    code2 { sqlite3 db2 test.db }
+    sql2 { INSERT INTO t1 VALUES(5, 6); }
+    code2 { db2 close }
+    file exists test.db-wal
+  } {1}
+
+  do_test 1.$tn.5 {
+    sql1 { SELECT * FROM t2 }
+    code1 { db close }
+    file exists test.db-wal
+  } {1}
+}
+
+finish_test