Import SQLite 3.10.2.

third_party/sqlite/src/test/pragma2.test

Index: third_party/sqlite/src/test/pragma2.test
diff --git a/third_party/sqlite/src/test/pragma2.test b/third_party/sqlite/src/test/pragma2.test
index 0dbc9777d261ffe8d7d770f3bf395fc1df9cd150..a4fb2ce657a187153ad3e7cda72466df8e627507 100644
--- a/third_party/sqlite/src/test/pragma2.test
+++ b/third_party/sqlite/src/test/pragma2.test
@@ -30,6 +30,8 @@ ifcapable !pragma||!schema_pragmas {
   return
 }
 
+test_set_config_pagecache 0 0
+
 # Delete the preexisting database to avoid the special setup
 # that the "all.test" script does.
 #
@@ -39,6 +41,10 @@ delete_file test3.db test3.db-journal
 sqlite3 db test.db; set DB [sqlite3_connection_pointer db]
 db eval {PRAGMA auto_vacuum=0}
 
+
+# EVIDENCE-OF: R-11211-21323 PRAGMA schema.freelist_count; Return the
+# number of unused pages in the database file.
+#
 do_test pragma2-1.1 {
   execsql {
     PRAGMA freelist_count;
@@ -119,8 +125,8 @@ ifcapable attach {
 
 # Default setting of PRAGMA cache_spill is always ON
 #
-# EVIDENCE-OF: R-51036-62828 PRAGMA cache_spill; PRAGMA
-# cache_spill=boolean;
+# EVIDENCE-OF: R-63549-59887 PRAGMA cache_spill; PRAGMA
+# cache_spill=boolean; PRAGMA schema.cache_spill=N;
 #
 # EVIDENCE-OF: R-23955-02765 Cache_spill is enabled by default
 #
@@ -129,10 +135,12 @@ delete_file test.db test.db-journal
 delete_file test2.db test2.db-journal
 sqlite3 db test.db
 do_execsql_test pragma2-4.1 {
+  PRAGMA main.cache_size=2000;
+  PRAGMA temp.cache_size=2000;
   PRAGMA cache_spill;
   PRAGMA main.cache_spill;
   PRAGMA temp.cache_spill;
-} {1 1 1}
+} {2000 2000 2000}
 do_execsql_test pragma2-4.2 {
   PRAGMA cache_spill=OFF;
   PRAGMA cache_spill;
@@ -172,21 +180,61 @@ do_test pragma2-4.4 {
     PRAGMA lock_status;
   }
 } {main exclusive temp unknown}  ;# EXCLUSIVE lock due to cache spill
-do_test pragma2-4.5 {
+do_test pragma2-4.5.1 {
   db eval {
-    COMMIT;
+    ROLLBACK;
     PRAGMA cache_spill=OFF;
+    PRAGMA Cache_Spill;
     BEGIN;
-    UPDATE t1 SET c=c-1;
+    UPDATE t1 SET c=c+1;
     PRAGMA lock_status;
   }
-} {main reserved temp unknown}   ;# No cache spill, so no exclusive lock
+} {0 main reserved temp unknown}   ;# No cache spill, so no exclusive lock
+
+
+# EVIDENCE-OF: R-34657-61226 The "PRAGMA cache_spill=N" form of this
+# pragma sets a minimum cache size threshold required for spilling to
+# occur.
+do_test pragma2-4.5.2 {
+  db eval {
+    ROLLBACK;
+    PRAGMA cache_spill=100000;
+    PRAGMA cache_spill;
+    BEGIN;
+    UPDATE t1 SET c=c+1;
+    PRAGMA lock_status;
+  }
+} {100000 main reserved temp unknown}   ;# Big spill threshold -> no excl lock
+ifcapable !memorymanage {
+  do_test pragma2-4.5.3 {
+    db eval {
+      ROLLBACK;
+      PRAGMA cache_spill=25;
+      PRAGMA main.cache_spill;
+      BEGIN;
+      UPDATE t1 SET c=c+1;
+      PRAGMA lock_status;
+    }
+  } {50 main exclusive temp unknown}   ;# Small cache spill -> exclusive lock
+  do_test pragma2-4.5.4 {
+    db eval {
+      ROLLBACK;
+      PRAGMA cache_spill(-25);
+      PRAGMA main.cache_spill;
+      BEGIN;
+      UPDATE t1 SET c=c+1;
+      PRAGMA lock_status;
+    }
+  } {50 main exclusive temp unknown}   ;# Small cache spill -> exclusive lock
+}
+
 
 # Verify that newly attached databases inherit the cache_spill=OFF
 # setting.
 #
 do_execsql_test pragma2-4.6 {
-  COMMIT;
+  ROLLBACK;
+  PRAGMA cache_spill=OFF;
   ATTACH 'test2.db' AS aux1;
   PRAGMA aux1.cache_size=50;
   BEGIN;
@@ -203,6 +251,26 @@ do_execsql_test pragma2-4.8 {
   UPDATE t2 SET c=c-1;
   PRAGMA lock_status;
 } {main unlocked temp unknown aux1 exclusive}
-   
+db close
+forcedelete test.db
+sqlite3 db test.db
 
+breakpoint
+do_execsql_test pragma2-5.1 {
+  PRAGMA page_size=16384;
+  CREATE TABLE t1(x);
+  PRAGMA cache_size=2;
+  PRAGMA cache_spill=YES;
+  PRAGMA cache_spill;
+} {2}
+do_execsql_test pragma2-5.2 {
+  PRAGMA cache_spill=NO;
+  PRAGMA cache_spill;
+} {0}
+do_execsql_test pragma2-5.3 {
+  PRAGMA cache_spill(-51);
+  PRAGMA cache_spill;
+} {3}
+   
+test_restore_config_pagecache
 finish_test