This patch simplifies integrated OVS test suite. Currently, we wait
for a barrier response before moving to the next test. However, we
don't need. The logic works like the following:
sending a flow mod (deleting all the flows)
sending a barrier
sending a flow mod (set up a flow to test)
sending a barrier
sending a flow stats
Then the reply handler for flow stats verifies the result and move to
the next.
You can run a test suite like:
$ ryu-manager ~/git/ryu/ryu/tests/integrated/test_add_flow_v12_actions.py
We can try two more suites:
ryu/tests/integrated/test_add_flow_v10.py
ryu/tests/integrated/test_add_flow_v12_matches.py
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>