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test: add wait_for_cookie_credentials() to test framework

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to be able to ensure the cookie file is written and auth credentials available
when testing CLI/RPC commands before the RPC connection is up.
This commit is contained in:
Jon Atack 2020-04-18 17:03:13 +02:00
parent f8102d9088
commit c648e636b2
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1 changed files with 17 additions and 1 deletions
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18
test/functional/test_framework/test_node.py
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@ -26,6 +26,7 @@ from .util import (
MAX_NODES,
append_config,
delete_cookie_file,
get_auth_cookie,
get_rpc_proxy,
rpc_url,
wait_until,
@ -237,12 +238,27 @@ class TestNode():
except OSError as e:
if e.errno != errno.ECONNREFUSED: # Port not yet open?
raise # unknown OS error
except ValueError as e: # cookie file not found and no rpcuser or rpcassword. bitcoind still starting
except ValueError as e: # cookie file not found and no rpcuser or rpcpassword; bitcoind is still starting
if "No RPC credentials" not in str(e):
raise
time.sleep(1.0 / poll_per_s)
self._raise_assertion_error("Unable to connect to bitcoind after {}s".format(self.rpc_timeout))
def wait_for_cookie_credentials(self):
"""Ensures auth cookie credentials can be read, e.g. for testing CLI with -rpcwait before RPC connection is up."""
self.log.debug("Waiting for cookie credentials")
# Poll at a rate of four times per second.
poll_per_s = 4
for _ in range(poll_per_s * self.rpc_timeout):
try:
get_auth_cookie(self.datadir, self.chain)
self.log.debug("Cookie credentials successfully retrieved")
return
except ValueError: # cookie file not found and no rpcuser or rpcpassword; bitcoind is still starting
pass # so we continue polling until RPC credentials are retrieved
time.sleep(1.0 / poll_per_s)
self._raise_assertion_error("Unable to retrieve cookie credentials after {}s".format(self.rpc_timeout))
def generate(self, nblocks, maxtries=1000000):
self.log.debug("TestNode.generate() dispatches `generate` call to `generatetoaddress`")
return self.generatetoaddress(nblocks=nblocks, address=self.get_deterministic_priv_key().address, maxtries=maxtries)