diff options
| -rwxr-xr-x | test/functional/test_framework/test_framework.py | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/test/functional/test_framework/test_framework.py b/test/functional/test_framework/test_framework.py index 1dbd262063..54ff9eb038 100755 --- a/test/functional/test_framework/test_framework.py +++ b/test/functional/test_framework/test_framework.py @@ -41,7 +41,28 @@ TEST_EXIT_PASSED = 0 TEST_EXIT_FAILED = 1 TEST_EXIT_SKIPPED = 77 -class BitcoinTestFramework(): + +class BitcoinTestMetaClass(type): + """Metaclass for BitcoinTestFramework. + + Ensures that any attempt to register a subclass of `BitcoinTestFramework` + adheres to a standard whereby the subclass overrides `set_test_params` and + `run_test` but DOES NOT override either `__init__` or `main`. If any of + those standards are violated, a ``TypeError`` is raised.""" + + def __new__(cls, clsname, bases, dct): + if not clsname == 'BitcoinTestFramework': + if not ('run_test' in dct and 'set_test_params' in dct): + raise TypeError("BitcoinTestFramework subclasses must override " + "'run_test' and 'set_test_params'") + if '__init__' in dct or 'main' in dct: + raise TypeError("BitcoinTestFramework subclasses may not override " + "'__init__' or 'main'") + + return super().__new__(cls, clsname, bases, dct) + + +class BitcoinTestFramework(metaclass=BitcoinTestMetaClass): """Base class for a bitcoin test script. Individual bitcoin test scripts should subclass this class and override the set_test_params() and run_test() methods. @@ -434,6 +455,7 @@ class BitcoinTestFramework(): for i in range(self.num_nodes): initialize_datadir(self.options.tmpdir, i) + class SkipTest(Exception): """This exception is raised to skip a test""" def __init__(self, message): |