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109 lines
3.3 KiB
109 lines
3.3 KiB
#!/usr/bin/env python3 |
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# Copyright (c) 2015-2017 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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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, coverage_logfile=None): |
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""" |
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Kwargs: |
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auth_service_proxy_instance (AuthServiceProxy): the instance |
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being wrapped. |
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coverage_logfile (str): 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.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.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.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, node): |
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""" |
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Write out a list of all RPC functions available in `kevacoin-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 (str): temporary test dir |
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node (AuthServiceProxy): client |
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Returns: |
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bool. 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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