This commit fixes the module-level docstrings for the tests and helper
modules in qa. Many of these tests were uncommented previously - this
commit ensures that every test case has at least a minimum level of
commenting.
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.
Motivation for this change is mainly to make sync_blocks behavior easier to
understand. Behavior is unchanged in the normal case when there are only 2
nodes in the rpc_connections set. When there are more than 2 nodes, the
previous "timeout -= wait" statement wouldn't take into account time spent
waiting for all nodes and as a result could lead to blocking for longer than
the requested timeout.
Instead of syncing to max height returned by the waitforblockheight RPC, sync
to the max height returned by the getblockcount RPC.
This change was suggested by Suhas Daftuar <sdaftuar@chaincode.com>.
Increase wallet-dump RPC timeout from 30 seconds to 1 minute. This avoids a
timeout error that seemed to happen regularly (around 50% of builds) on a
particular jenkins server during the first getnewaddress RPC call made by the
test.
The failing stack trace looked like:
Unexpected exception caught during testing: timeout('timed out',)
File ".../bitcoin/qa/rpc-tests/test_framework/test_framework.py", line 146, in main
self.run_test()
File ".../bitcoin/qa/rpc-tests/wallet-dump.py", line 73, in run_test
addr = self.nodes[0].getnewaddress()
File ".../bitcoin/qa/rpc-tests/test_framework/coverage.py", line 49, in __call__
return_val = self.auth_service_proxy_instance.__call__(*args, **kwargs)
File ".../bitcoin/qa/rpc-tests/test_framework/authproxy.py", line 145, in __call__
response = self._request('POST', self.__url.path, postdata.encode('utf-8'))
File ".../bitcoin/qa/rpc-tests/test_framework/authproxy.py", line 121, in _request
return self._get_response()
File ".../bitcoin/qa/rpc-tests/test_framework/authproxy.py", line 160, in _get_response
http_response = self.__conn.getresponse()
File "/usr/lib/python3.4/http/client.py", line 1171, in getresponse
response.begin()
File "/usr/lib/python3.4/http/client.py", line 351, in begin
version, status, reason = self._read_status()
File "/usr/lib/python3.4/http/client.py", line 313, in _read_status
line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1")
File "/usr/lib/python3.4/socket.py", line 374, in readinto
return self._sock.recv_into(b)
These are text files but their encoding does not depend on the locale.
Not all of them require utf8 but it is better to fix it at something
to remove potential unpredictability.
This is necessary on FreeBSD where no locale is set by default,
and apparently Python defaults not only the terminal encoding to the locale
but that of every text file. So without LOCALE environment it defaults text
file encoding to ASCII. This causes problems with e.g. `bitcoin.conf`.
Luckily the locale doesn't affect the default encoding for str.encode() and
bytes.decode() on Python 3, so this is the only change necessary.
waitfornewblock waits until a new block is received, or the timeout expires, then
returns the current block height/hash.
waitforblock waits for a specific blockhash, or until the timeout expires, then
returns the current block height/hash. If the target blockhash is the current
tip, it will return immediately.
waitforblockheight waits until the tip has reached a certain height or higher,
then returns the current height and hash.
waitforblockheight is used to avoid polling in the rpc tests.
Previously these functions would infinitely loop if sync failed;
now they have a default timeout of 60 seconds, after which an
AssertionError is raised.
sync_blocks() has also been improved and now compares the tip
hash of each node, rather than just using block count.
We can't change "softforks", but it seems far more logical to use tags
in an object rather than using an "id" field in an array.
For example, to get the csv status before, you need to iterate the
array to find the entry with 'id' field equal to "csv":
jq '.bip9_softforks | map(select(.id == "csv"))[] | .status'
Now:
jq '.bip9_softforks.csv.status'
There is no issue with fork names being incompatible with JSON tags,
since we're selecting them ourselves.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Replace the `bitcoin-cli -rpcwait` after spawning bitcoind
with our own loop that detects when bitcoind exits prematurely.
And if one node fails to start, stop the others.
This prevents a hang in such a case (see #7463).
John Newbery