132 lines
3.7 KiB
Python
132 lines
3.7 KiB
Python
"""
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Test OutcomeExceptions and helpers for creating them.
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py.test.skip|fail|raises helper implementations
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"""
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import py
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import sys
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class OutcomeException(Exception):
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""" OutcomeException and its subclass instances indicate and
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contain info about test and collection outcomes.
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"""
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def __init__(self, msg=None, excinfo=None):
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self.msg = msg
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self.excinfo = excinfo
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def __repr__(self):
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if self.msg:
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return repr(self.msg)
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return "<%s instance>" %(self.__class__.__name__,)
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__str__ = __repr__
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class Passed(OutcomeException):
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pass
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class Skipped(OutcomeException):
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pass
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class Failed(OutcomeException):
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pass
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class ExceptionFailure(Failed):
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def __init__(self, expr, expected, msg=None, excinfo=None):
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Failed.__init__(self, msg=msg, excinfo=excinfo)
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self.expr = expr
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self.expected = expected
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class Exit(Exception):
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""" for immediate program exits without tracebacks and reporter/summary. """
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def __init__(self, msg="unknown reason"):
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self.msg = msg
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Exception.__init__(self, msg)
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# exposed helper methods
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def exit(msg):
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""" exit testing process immediately. """
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__tracebackhide__ = True
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raise Exit(msg)
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def skip(msg=""):
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""" skip with the given Message. """
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__tracebackhide__ = True
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raise Skipped(msg=msg)
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def fail(msg="unknown failure"):
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""" fail with the given Message. """
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__tracebackhide__ = True
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raise Failed(msg=msg)
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def raises(ExpectedException, *args, **kwargs):
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""" raise AssertionError, if target code does not raise the expected
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exception.
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"""
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__tracebackhide__ = True
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assert args
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if isinstance(args[0], str):
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expr, = args
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assert isinstance(expr, str)
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frame = sys._getframe(1)
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loc = frame.f_locals.copy()
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loc.update(kwargs)
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#print "raises frame scope: %r" % frame.f_locals
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source = py.code.Source(expr)
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try:
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exec source.compile() in frame.f_globals, loc
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#del __traceback__
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# XXX didn'T mean f_globals == f_locals something special?
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# this is destroyed here ...
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except ExpectedException:
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return py.code.ExceptionInfo()
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else:
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func = args[0]
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assert callable
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try:
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func(*args[1:], **kwargs)
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#del __traceback__
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except ExpectedException:
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return py.code.ExceptionInfo()
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k = ", ".join(["%s=%r" % x for x in kwargs.items()])
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if k:
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k = ', ' + k
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expr = '%s(%r%s)' %(func.__name__, args, k)
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raise ExceptionFailure(msg="DID NOT RAISE",
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expr=args, expected=ExpectedException)
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def deprecated_call(func, *args, **kwargs):
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""" assert that calling func(*args, **kwargs)
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triggers a DeprecationWarning.
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"""
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warningmodule = py.std.warnings
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l = []
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oldwarn_explicit = getattr(warningmodule, 'warn_explicit')
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def warn_explicit(*args, **kwargs):
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l.append(args)
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oldwarn_explicit(*args, **kwargs)
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oldwarn = getattr(warningmodule, 'warn')
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def warn(*args, **kwargs):
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l.append(args)
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oldwarn(*args, **kwargs)
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warningmodule.warn_explicit = warn_explicit
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warningmodule.warn = warn
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try:
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ret = func(*args, **kwargs)
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finally:
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warningmodule.warn_explicit = warn_explicit
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warningmodule.warn = warn
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if not l:
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print warningmodule
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raise AssertionError("%r did not produce DeprecationWarning" %(func,))
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return ret
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# exitcodes for the command line
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EXIT_OK = 0
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EXIT_TESTSFAILED = 1
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EXIT_INTERRUPTED = 2
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EXIT_INTERNALERROR = 3
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EXIT_NOHOSTS = 4
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