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diff --git a/test/jrnlmode2.test b/test/jrnlmode2.test
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+# 2009 March 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.
+#
+#***********************************************************************
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+ifcapable {!pager_pragmas} {
+  finish_test
+  return
+}
+
+if {[atomic_batch_write test.db]} {
+  finish_test
+  return
+}
+
+#-------------------------------------------------------------------------
+# The tests in this file check that the following two bugs (both now fixed)
+# do not reappear.
+#
+# jrnlmode2-1.*: Demonstrate bug #3745:
+#
+#     In persistent journal mode, if:
+#
+#       * There is a persistent journal in the file-system, AND
+#       * there exists a connection with a shared lock on the db file, 
+#
+#     then a second connection cannot open a read-transaction on the database.
+#     The reason is because while determining that the persistent-journal is
+#     not a hot-journal, SQLite currently grabs an exclusive lock on the
+#     database file. If this fails because another connection has a shared
+#     lock, then SQLITE_BUSY is returned to the user.  
+#
+# jrnlmode2-2.*: Demonstrate bug #3751:
+#
+#     If a connection is opened in SQLITE_OPEN_READONLY mode, the underlying
+#     unix file descriptor on the database file is opened in O_RDONLY mode.
+#
+#     When SQLite queries the database file for the schema in order to compile
+#     the SELECT statement, it sees the empty journal in the file system, it
+#     attempts to obtain an exclusive lock on the database file (this is a
+#     bug). The attempt to obtain an exclusive (write) lock on a read-only file
+#     fails at the OS level. Under unix, fcntl() reports an EBADF - "Bad file
+#     descriptor" - error. 
+#
+
+do_test jrnlmode2-1.1 {
+  execsql {
+    PRAGMA journal_mode = persist;
+    CREATE TABLE t1(a, b);
+    INSERT INTO t1 VALUES(1, 2);
+  }
+} {persist}
+
+do_test jrnlmode2-1.2 {
+  file exists test.db-journal
+} {1}
+
+do_test jrnlmode2-1.3 {
+  sqlite3 db2 test.db
+  execsql { SELECT * FROM t1 } db2
+} {1 2}
+
+do_test jrnlmode2-1.4 {
+  execsql {
+    INSERT INTO t1 VALUES(3, 4);
+  }
+  execsql {
+    BEGIN;
+    SELECT * FROM t1;
+  }
+  execsql { PRAGMA lock_status }
+} {main shared temp closed}
+
+do_test jrnlmode2-1.5 {
+  file exists test.db-journal
+} {1}
+
+do_test jrnlmode2-1.6 {
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2 3 4}}
+
+do_test jrnlmode2-1.7 {
+  execsql { COMMIT }
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2 3 4}}
+
+
+
+do_test jrnlmode2-2.1 {
+  db2 close
+  execsql { PRAGMA journal_mode = truncate }
+  execsql { INSERT INTO t1 VALUES(5, 6) }
+} {}
+
+do_test jrnlmode2-2.2 {
+  file exists test.db-journal
+} {1}
+
+do_test jrnlmode2-2.3 {
+  file size test.db-journal
+} {0}
+
+do_test jrnlmode2-2.4 {
+  sqlite3 db2 test.db -readonly 1
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2 3 4 5 6}}
+
+do_test jrnlmode2-2.5 {
+  db close
+  delete_file test.db-journal
+} {}
+do_test jrnlmode2-2.6 {
+  sqlite3 db2 test.db -readonly 1
+  catchsql { SELECT * FROM t1 } db2
+} {0 {1 2 3 4 5 6}}
+
+catch { db2 close }
+finish_test