Import SQLite 3.7.6.3.

third_party/sqlite/src/test/walshared.test

Index: third_party/sqlite/src/test/walshared.test
diff --git a/third_party/sqlite/src/test/walshared.test b/third_party/sqlite/src/test/walshared.test
new file mode 100644
index 0000000000000000000000000000000000000000..73a3fb8bc1bd7199a156768523e08275fee9ad50
--- /dev/null
+++ b/third_party/sqlite/src/test/walshared.test
@@ -0,0 +1,63 @@
+# 2010 August 2
+#
+# 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 the operation of the library in
+# "PRAGMA journal_mode=WAL" mode with shared-cache turned on.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable !wal {finish_test ; return }
+
+db close
+set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+
+sqlite3 db  test.db
+sqlite3 db2 test.db
+
+do_test walshared-1.0 {
+  execsql {
+    PRAGMA cache_size = 10;
+    PRAGMA journal_mode = WAL;
+    CREATE TABLE t1(a PRIMARY KEY, b UNIQUE);
+    INSERT INTO t1 VALUES(randomblob(100), randomblob(200));
+  }
+} {wal}
+
+do_test walshared-1.1 {
+  execsql {
+    BEGIN;
+      INSERT INTO t1 VALUES(randomblob(100), randomblob(200));
+      INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
+      INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
+      INSERT INTO t1 SELECT randomblob(100), randomblob(200) FROM t1;
+  }
+} {}
+
+do_test walshared-1.2 {
+  catchsql { PRAGMA wal_checkpoint }
+} {1 {database table is locked}}
+
+do_test walshared-1.3 {
+  catchsql { PRAGMA wal_checkpoint } db2
+} {1 {database table is locked}}
+
+do_test walshared-1.4 {
+  execsql { COMMIT }
+  execsql { PRAGMA integrity_check } db2
+} {ok}
+
+
+
+sqlite3_enable_shared_cache $::enable_shared_cache
+finish_test
+