e36a0c0 [qa] Ensure bitcoind processes are cleaned up when tests end (Suhas Daftuar)
Pull request description:
When tests fail (such as due to a bug in the test, race condition, etc), it's possible that we could follow code paths that bypass our normal node shutdown that occurs in `TestNode.stop_node`. Add a destructor to `TestNode` that cleans this up.
Tree-SHA512: 72e04bc21462ebd0cb346fd1fe0540da454acfbad41923a0b06ea2317e9045b68e58f9adb02d8200891aca89a9d03a022eb72282aeb31a3b3afe7c6843a4b450
63048ec73d [tests] Test starting bitcoind with -h and -version (John Newbery)
Pull request description:
Test that starting bitcoind/bitcoin-qt with `-h` and `-version` works as expected.
Prompted by https://github.com/bitcoin/bitcoin/pull/10762#commitcomment-28345993, which is a nullpointer dereference triggered by starting bitcoin-qt with `-h`.
On master, this test passes when run over bitcoind, but fails when running over bitcoin-qt. I used xvfb as a virtual frame buffer to test:
```
BITCOIND=/home/ubuntu/bitcoin/src/qt/bitcoin-qt xvfb-run ./feature_help.py --nocleanup
2018-03-30T17:09:37.767000Z TestFramework (INFO): Initializing test directory /tmp/user/1000/testdi4dre13
2018-03-30T17:09:37.767000Z TestFramework (INFO): Start bitcoin with -h for help text
2018-03-30T17:09:37.841000Z TestFramework (ERROR): Assertion failed
Traceback (most recent call last):
File "/home/ubuntu/bitcoin/test/functional/test_framework/test_framework.py", line 126, in main
self.run_test()
File "./feature_help.py", line 25, in run_test
assert_equal(ret_code, 0)
File "/home/ubuntu/bitcoin/test/functional/test_framework/util.py", line 39, in assert_equal
raise AssertionError("not(%s)" % " == ".join(str(arg) for arg in (thing1, thing2) + args))
AssertionError: not(-11 == 0)
2018-03-30T17:09:37.842000Z TestFramework (INFO): Stopping nodes
Traceback (most recent call last):
File "./feature_help.py", line 42, in <module>
HelpTest().main()
File "/home/ubuntu/bitcoin/test/functional/test_framework/test_framework.py", line 149, in main
self.stop_nodes()
File "/home/ubuntu/bitcoin/test/functional/test_framework/test_framework.py", line 273, in stop_nodes
node.stop_node()
File "/home/ubuntu/bitcoin/test/functional/test_framework/test_node.py", line 141, in stop_node
self.stop()
File "/home/ubuntu/bitcoin/test/functional/test_framework/test_node.py", line 87, in __getattr__
assert self.rpc_connected and self.rpc is not None, "Error: no RPC connection"
AssertionError: Error: no RPC connection
```
Passes for bitcoind and bitcoin-qt when run on #12836.
Longer term, we should consider running functional tests over bitcoin-qt in one of the Travis jobs.
Tree-SHA512: 0c2f40f3d5f0e78c3a1b07dbee8fd383eebab27ed0bf2a98a5b9cc66613dbd7b70e363c56163a37e02f68ae7ff7b3ae1769705d0e110ca68a00f8693315730a4
