Import SQLite 3.7.6.3.

third_party/sqlite/src/test/attachmalloc.test

Index: third_party/sqlite/src/test/attachmalloc.test
diff --git a/third_party/sqlite/src/test/attachmalloc.test b/third_party/sqlite/src/test/attachmalloc.test
index 30841cea76f797dd7baace70c9c8aa3b4ba2844e..c485c618bd4c5917bb310a93afbfa12788cf3d0c 100644
--- a/third_party/sqlite/src/test/attachmalloc.test
+++ b/third_party/sqlite/src/test/attachmalloc.test
@@ -26,8 +26,9 @@ ifcapable !memdebug||!attach {
 source $testdir/malloc_common.tcl
 
 do_malloc_test attachmalloc-1 -tclprep {
-  db close
+  catch { db close }
   for {set i 2} {$i<=4} {incr i} {
+    catch { db$i close }
     file delete -force test$i.db
     file delete -force test$i.db-journal
   }
@@ -60,4 +61,17 @@ do_malloc_test attachmalloc-2 -tclprep {
   ATTACH 'test2.db' AS db1;
 }
 
+set enable_shared_cache [sqlite3_enable_shared_cache 1]
+sqlite3 dbaux test3.db
+dbaux eval {SELECT * FROM sqlite_master}
+do_malloc_test attachmalloc-3 -sqlbody {
+  SELECT * FROM sqlite_master;
+  ATTACH 'test3.db' AS three;
+} -cleanup {
+  db eval { DETACH three }
+}
+dbaux close
+sqlite3_enable_shared_cache $enable_shared_cache
+
+
 finish_test