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diff --git a/third_party/sqlite/src/test/enc3.test b/third_party/sqlite/src/test/enc3.test
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+++ b/third_party/sqlite/src/test/enc3.test
@@ -0,0 +1,107 @@
+# 2002 May 24
+#
+# 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 of the proper handling of conversions
+# to the native text representation.
+#
+# $Id: enc3.test,v 1.8 2008/01/22 01:48:09 drh Exp $
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {utf16} {
+  do_test enc3-1.1 {
+    execsql {
+      PRAGMA encoding=utf16le;
+      PRAGMA encoding;
+    }
+  } {UTF-16le}
+}
+do_test enc3-1.2 {
+  execsql {
+    CREATE TABLE t1(x,y);
+    INSERT INTO t1 VALUES('abc''123',5);
+    SELECT * FROM t1
+  }
+} {abc'123 5}
+do_test enc3-1.3 {
+  execsql {
+    SELECT quote(x) || ' ' || quote(y) FROM t1
+  }
+} {{'abc''123' 5}}
+ifcapable {bloblit} {
+  do_test enc3-1.4 {
+    execsql {
+      DELETE FROM t1;
+      INSERT INTO t1 VALUES(x'616263646566',NULL);
+      SELECT * FROM t1
+    }
+  } {abcdef {}}
+  do_test enc3-1.5 {
+    execsql {
+      SELECT quote(x) || ' ' || quote(y) FROM t1
+    }
+  } {{X'616263646566' NULL}}
+}
+ifcapable {bloblit && utf16} {
+  do_test enc3-2.1 {
+    execsql {
+      PRAGMA encoding
+    }
+  } {UTF-16le}
+  do_test enc3-2.2 {
+    execsql {
+      CREATE TABLE t2(a);
+      INSERT INTO t2 VALUES(x'61006200630064006500');
+      SELECT CAST(a AS text) FROM t2 WHERE a LIKE 'abc%';
+    }
+  } {abcde}
+  do_test enc3-2.3 {
+    execsql {
+      SELECT CAST(x'61006200630064006500' AS text);
+    }
+  } {abcde}
+  do_test enc3-2.4 {
+    execsql {
+      SELECT rowid FROM t2 WHERE a LIKE x'610062002500';
+    }
+  } {1}
+}
+
+# Try to attach a database with a different encoding.
+#
+ifcapable {utf16 && shared_cache} {
+  db close
+  file delete -force test8.db test8.db-journal
+  set ::enable_shared_cache [sqlite3_enable_shared_cache 1]
+  sqlite3 dbaux test8.db
+  sqlite3 db test.db
+  db eval {SELECT 1 FROM sqlite_master LIMIT 1}
+  do_test enc3-3.1 {
+    dbaux eval {
+      PRAGMA encoding='utf8';
+      CREATE TABLE t1(x);
+      PRAGMA encoding
+    }
+  } {UTF-8}
+  do_test enc3-3.2 {
+    catchsql {
+      ATTACH 'test.db' AS utf16;
+      SELECT 1 FROM utf16.sqlite_master LIMIT 1;
+    } dbaux
+  } {1 {attached databases must use the same text encoding as main database}}
+  dbaux close
+  file delete -force test8.db test8.db-journal
+  sqlite3_enable_shared_cache $::enable_shared_cache
+}
+
+finish_test