Import SQLite 3.8.7.4.

third_party/sqlite/src/test/view.test

Index: third_party/sqlite/src/test/view.test
diff --git a/third_party/sqlite/src/test/view.test b/third_party/sqlite/src/test/view.test
index a87d2770a06e4c567c03830a1319ff60384a9268..3ba6c0b4653e4e8d9075a358ee7dd5e321586d4d 100644
--- a/third_party/sqlite/src/test/view.test
+++ b/third_party/sqlite/src/test/view.test
@@ -458,7 +458,7 @@ do_test view-12.1 {
 
 ifcapable attach {
   do_test view-13.1 {
-    file delete -force test2.db
+    forcedelete test2.db
     catchsql {
       ATTACH 'test2.db' AS two;
       CREATE TABLE two.t2(x,y);
@@ -576,4 +576,52 @@ do_test view-20.1 {
   }
 } {}
 
+# Ticket [d58ccbb3f1b]: Prevent Table.nRef overflow.
+db close
+sqlite3 db :memory:
+do_test view-21.1 {
+  catchsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(5);
+    CREATE VIEW v1 AS SELECT x*2 FROM t1;
+    CREATE VIEW v2 AS SELECT * FROM v1 UNION SELECT * FROM v1;
+    CREATE VIEW v4 AS SELECT * FROM v2 UNION SELECT * FROM v2;
+    CREATE VIEW v8 AS SELECT * FROM v4 UNION SELECT * FROM v4;
+    CREATE VIEW v16 AS SELECT * FROM v8 UNION SELECT * FROM v8;
+    CREATE VIEW v32 AS SELECT * FROM v16 UNION SELECT * FROM v16;
+    CREATE VIEW v64 AS SELECT * FROM v32 UNION SELECT * FROM v32;
+    CREATE VIEW v128 AS SELECT * FROM v64 UNION SELECT * FROM v64;
+    CREATE VIEW v256 AS SELECT * FROM v128 UNION SELECT * FROM v128;
+    CREATE VIEW v512 AS SELECT * FROM v256 UNION SELECT * FROM v256;
+    CREATE VIEW v1024 AS SELECT * FROM v512 UNION SELECT * FROM v512;
+    CREATE VIEW v2048 AS SELECT * FROM v1024 UNION SELECT * FROM v1024;
+    CREATE VIEW v4096 AS SELECT * FROM v2048 UNION SELECT * FROM v2048;
+    CREATE VIEW v8192 AS SELECT * FROM v4096 UNION SELECT * FROM v4096;
+    CREATE VIEW v16384 AS SELECT * FROM v8192 UNION SELECT * FROM v8192;
+    CREATE VIEW v32768 AS SELECT * FROM v16384 UNION SELECT * FROM v16384;
+    CREATE VIEW vx AS SELECT * FROM v32768 UNION SELECT * FROM v32768;
+  }
+} {1 {too many references to "v1": max 65535}}
+ifcapable progress {
+  do_test view-21.2 {
+    db progress 1000 {expr 1}
+    catchsql {
+      SELECT * FROM v32768;
+    }
+  } {1 interrupted}
+}
+
+db close
+sqlite3 db :memory:
+do_execsql_test view-22.1 {
+  CREATE VIEW x1 AS SELECT 123 AS '', 234 AS '', 345 AS '';
+  SELECT * FROM x1;
+} {123 234 345}
+do_test view-22.2 {
+  unset -nocomplain x
+  db eval {SELECT * FROM x1} x break
+  lsort [array names x]
+} {{} * :1 :2}
+
+
 finish_test