Import SQLite 3.10.2.

third_party/sqlite/src/test/sort4.test

Index: third_party/sqlite/src/test/sort4.test
diff --git a/third_party/sqlite/src/test/sort4.test b/third_party/sqlite/src/test/sort4.test
index 01fcbfee95bd7dded149141a9783c7f66892a802..13d9a5999a8ac38ecb9c4a3edbca037a439c3948 100644
--- a/third_party/sqlite/src/test/sort4.test
+++ b/third_party/sqlite/src/test/sort4.test
@@ -17,9 +17,28 @@
 set testdir [file dirname $argv0]
 source $testdir/tester.tcl
 set testprefix sort4
+db close
+sqlite3_shutdown
+sqlite3_config_pmasz 10
+sqlite3_initialize
+sqlite3 db test.db
+
 
 # Configure the sorter to use 3 background threads.
-db eval {PRAGMA threads=3}
+#
+# EVIDENCE-OF: R-19249-32353 SQLITE_LIMIT_WORKER_THREADS The maximum
+# number of auxiliary worker threads that a single prepared statement
+# may start.
+#
+do_test sort4-init001 {
+  db eval {PRAGMA threads=5}
+  sqlite3_limit db SQLITE_LIMIT_WORKER_THREADS -1
+} {5}
+do_test sort4-init002 {
+  sqlite3_limit db SQLITE_LIMIT_WORKER_THREADS 3
+  db eval {PRAGMA threads}
+} {3}
+
 
 # Minimum number of seconds to run for. If the value is 0, each test
 # is run exactly once. Otherwise, tests are repeated until the timeout