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76 lines
2.4 KiB
76 lines
2.4 KiB
5 years ago
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#!/usr/bin/env python3
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# Copyright (c) 2019 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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from test_framework.test_framework import BitcoinTestFramework
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class TestShell:
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"""Wrapper Class for BitcoinTestFramework.
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The TestShell class extends the BitcoinTestFramework
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rpc & daemon process management functionality to external
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python environments.
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It is a singleton class, which ensures that users only
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start a single TestShell at a time."""
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class __TestShell(BitcoinTestFramework):
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def set_test_params(self):
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pass
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def run_test(self):
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pass
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def setup(self, **kwargs):
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if self.running:
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print("TestShell is already running!")
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return
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# Num_nodes parameter must be set
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# by BitcoinTestFramework child class.
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self.num_nodes = kwargs.get('num_nodes', 1)
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kwargs.pop('num_nodes', None)
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# User parameters override default values.
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for key, value in kwargs.items():
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if hasattr(self, key):
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setattr(self, key, value)
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elif hasattr(self.options, key):
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setattr(self.options, key, value)
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else:
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raise KeyError(key + " not a valid parameter key!")
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super().setup()
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self.running = True
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def shutdown(self):
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if not self.running:
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print("TestShell is not running!")
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else:
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super().shutdown()
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self.running = False
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def reset(self):
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if self.running:
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print("Shutdown TestWrapper before resetting!")
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else:
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self.num_nodes = None
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super().__init__()
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instance = None
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def __new__(cls):
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# This implementation enforces singleton pattern, and will return the
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# previously initialized instance if available
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if not TestShell.instance:
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TestShell.instance = TestShell.__TestShell()
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TestShell.instance.running = False
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return TestShell.instance
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def __getattr__(self, name):
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return getattr(self.instance, name)
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def __setattr__(self, name, value):
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return setattr(self.instance, name, value)
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