John Newbery 9db8eecac1 Fix RPC failure testing
Make sure that RPC tests are actually checking failures correctly by:

- Catching JSON RPC exceptions and verifying the error codes and messages.
- Failing the test case if the JSON RPC exception isn't raised.
2017-02-08 10:24:02 -05:00
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2016-10-17 00:34:37 +08:00
2016-07-29 09:41:58 -04:00
2017-02-08 10:24:02 -05:00