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diff --git a/diplomacy/tests/network/run_real_game.py b/diplomacy/tests/network/run_real_game.py
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+++ b/diplomacy/tests/network/run_real_game.py
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+#!/usr/bin/env python3
+# ==============================================================================
+# Copyright (C) 2019 - Philip Paquette
+#
+#  This program is free software: you can redistribute it and/or modify it under
+#  the terms of the GNU Affero General Public License as published by the Free
+#  Software Foundation, either version 3 of the License, or (at your option) any
+#  later version.
+#
+#  This program is distributed in the hope that it will be useful, but WITHOUT
+#  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU Affero General Public License along
+#  with this program.  If not, see <https://www.gnu.org/licenses/>.
+# ==============================================================================
+""" Run tests from diplomacy.tests.network.test_real_game to test games in a real environment.
+    Each test run a game and checks game messages and phases against an expected game data file.
+    Current tested gama data files are JSON files located into folder diplomacy/tests/network:
+        1.json
+        2.json
+        3.json
+    Need a local diplomacy server running. You must specify this server port using parameter --port=<server_port>.
+    To run all tests:
+        python -m diplomacy.tests.network.run_real_game --port=<server_port>
+    To run a specific test (e.g. 2.json, or 2.json and 1.json):
+        python -m diplomacy.tests.network.run_real_game --cases=20 --port=<server_port>
+        python -m diplomacy.tests.network.run_real_game --cases=15,20 --port=<server_port>
+    For help:
+        python -m diplomacy.tests.network.run_real_game --help
+"""
+import argparse
+from tornado import gen
+from tornado.ioloop import IOLoop
+
+from diplomacy.tests.network import test_real_game
+
+def launch_case(case_name, port, io_loop):
+    """ Launch a game case. """
+    case_data = test_real_game.CaseData(case_name, port=port)
+    case_data.io_loop = io_loop
+    return test_real_game.main(case_data)
+
+def main():
+    """ Main function for this module. Load and run tests.
+        Each test run a game and checks game messages and phases against an expected game data file.
+        Current tested gama data files are JSON files located into folder diplomacy/tests/network.
+    """
+    parser = argparse.ArgumentParser(description='Run test cases against an external server to connect.')
+    parser.add_argument('--port', type=int, required=True,
+                        help='run on the given port (required)')
+    parser.add_argument('--cases', action='append',
+                        help="Run given cases. "
+                             "Each case <C> must match a test case file <C>.json located in diplomacy.tests.network. "
+                             "If not provided, all available cases are run.")
+    args = parser.parse_args()
+    io_loop = IOLoop()
+    io_loop.make_current()
+
+    @gen.coroutine
+    def run():
+        """ Run all tests consecutively in one call. """
+        tests = set(args.cases) if args.cases else {'1', '2', '3'}
+        for test_case in list(sorted(tests)):
+            yield launch_case('%s.json' % test_case, args.port, io_loop)
+
+    io_loop.run_sync(run)
+
+
+if __name__ == '__main__':
+    main()