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0845e1956e
fbeb8c43bc5bce131e15eb9e162ea457bfe2b83e test: add type annotations to util.get_rpc_proxy (fanquake)
Pull request description:
Split out from #22092 while we address the functional test failure.
ACKs for top commit:
instagibbs:
ACK fbeb8c43bc
Tree-SHA512: 031ef8703202ae5271787719fc3fea8693574b2eb937ccf852875de95798d7fa3c39a8db7c91993d0c946b45d9b4d6de570bd1102e0344348784723bd84803a8
113 lines
3.5 KiB
Python
113 lines
3.5 KiB
Python
#!/usr/bin/env python3
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# Copyright (c) 2015-2016 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Utilities for doing coverage analysis on the RPC interface.
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Provides a way to track which RPC commands are exercised during
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testing.
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"""
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import os
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from .authproxy import AuthServiceProxy
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REFERENCE_FILENAME = 'rpc_interface.txt'
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class AuthServiceProxyWrapper():
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"""
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An object that wraps AuthServiceProxy to record specific RPC calls.
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"""
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def __init__(self, auth_service_proxy_instance: AuthServiceProxy, rpc_url: str, coverage_logfile: str=None):
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"""
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Kwargs:
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auth_service_proxy_instance: the instance being wrapped.
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rpc_url: url of the RPC instance being wrapped
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coverage_logfile: if specified, write each service_name
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out to a file when called.
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"""
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self.auth_service_proxy_instance = auth_service_proxy_instance
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self.rpc_url = rpc_url
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self.coverage_logfile = coverage_logfile
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def __getattr__(self, name):
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return_val = getattr(self.auth_service_proxy_instance, name)
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if not isinstance(return_val, type(self.auth_service_proxy_instance)):
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# If proxy getattr returned an unwrapped value, do the same here.
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return return_val
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return AuthServiceProxyWrapper(return_val, self.rpc_url, self.coverage_logfile)
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def __call__(self, *args, **kwargs):
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"""
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Delegates to AuthServiceProxy, then writes the particular RPC method
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called to a file.
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"""
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return_val = self.auth_service_proxy_instance.__call__(*args, **kwargs)
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self._log_call()
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return return_val
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def _log_call(self):
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rpc_method = self.auth_service_proxy_instance._service_name
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if self.coverage_logfile:
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with open(self.coverage_logfile, 'a+', encoding='utf8') as f:
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f.write("%s\n" % rpc_method)
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def __truediv__(self, relative_uri):
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return AuthServiceProxyWrapper(self.auth_service_proxy_instance / relative_uri,
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self.rpc_url,
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self.coverage_logfile)
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def get_request(self, *args, **kwargs):
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self._log_call()
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return self.auth_service_proxy_instance.get_request(*args, **kwargs)
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def get_filename(dirname, n_node):
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"""
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Get a filename unique to the test process ID and node.
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This file will contain a list of RPC commands covered.
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"""
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pid = str(os.getpid())
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return os.path.join(
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dirname, "coverage.pid%s.node%s.txt" % (pid, str(n_node)))
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def write_all_rpc_commands(dirname: str, node: AuthServiceProxy) -> bool:
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"""
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Write out a list of all RPC functions available in `dash-cli` for
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coverage comparison. This will only happen once per coverage
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directory.
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Args:
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dirname: temporary test dir
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node: client
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Returns:
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if the RPC interface file was written.
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"""
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filename = os.path.join(dirname, REFERENCE_FILENAME)
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if os.path.isfile(filename):
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return False
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help_output = node.help().split('\n')
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commands = set()
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for line in help_output:
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line = line.strip()
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# Ignore blanks and headers
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if line and not line.startswith('='):
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commands.add("%s\n" % line.split()[0])
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with open(filename, 'w', encoding='utf8') as f:
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f.writelines(list(commands))
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return True
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