GDB: Test for executing nacl-manifest command twice.

tests/gdb/execute_nacl_manifest_twice.py

Index: tests/gdb/execute_nacl_manifest_twice.py
===================================================================
--- tests/gdb/execute_nacl_manifest_twice.py	(revision 0)
+++ tests/gdb/execute_nacl_manifest_twice.py	(revision 0)
@@ -0,0 +1,19 @@
+# -*- python -*-
+# Copyright (c) 2012 The Native Client Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+from gdb_test import AssertEquals
+import gdb_test
+
+
+def test(gdb):
+  # The second superfluous call to LoadManifestFile.  This is a regression test
+  # for issue https://code.google.com/p/nativeclient/issues/detail?id=3262 .
+  gdb.LoadManifestFile()
+  gdb.ResumeCommand('continue')
+  gdb.Quit()
+
+
+if __name__ == '__main__':
+  gdb_test.RunTest(test, '')