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# Copyright (c) 2003-2009 Zooko Wilcox-O'Hearn
# This file is part of pyutil; see README.rst for licensing terms.
"""
Tests useful in assertion checking, prints out nicely formated messages too.
"""
from humanreadable import hr
def _assert(___cond=False, *___args, **___kwargs):
if ___cond:
return True
msgbuf=[]
if ___args:
msgbuf.append("%s %s" % tuple(map(hr, (___args[0], type(___args[0]),))))
msgbuf.extend([", %s %s" % tuple(map(hr, (arg, type(arg),))) for arg in ___args[1:]])
if ___kwargs:
msgbuf.append(", %s: %s %s" % ((___kwargs.items()[0][0],) + tuple(map(hr, (___kwargs.items()[0][1], type(___kwargs.items()[0][1]),)))))
else:
if ___kwargs:
msgbuf.append("%s: %s %s" % ((___kwargs.items()[0][0],) + tuple(map(hr, (___kwargs.items()[0][1], type(___kwargs.items()[0][1]),)))))
msgbuf.extend([", %s: %s %s" % tuple(map(hr, (k, v, type(v),))) for k, v in ___kwargs.items()[1:]])
raise AssertionError, "".join(msgbuf)
def precondition(___cond=False, *___args, **___kwargs):
if ___cond:
return True
msgbuf=["precondition", ]
if ___args or ___kwargs:
msgbuf.append(": ")
if ___args:
msgbuf.append("%s %s" % tuple(map(hr, (___args[0], type(___args[0]),))))
msgbuf.extend([", %s %s" % tuple(map(hr, (arg, type(arg),))) for arg in ___args[1:]])
if ___kwargs:
msgbuf.append(", %s: %s %s" % ((___kwargs.items()[0][0],) + tuple(map(hr, (___kwargs.items()[0][1], type(___kwargs.items()[0][1]),)))))
else:
if ___kwargs:
msgbuf.append("%s: %s %s" % ((___kwargs.items()[0][0],) + tuple(map(hr, (___kwargs.items()[0][1], type(___kwargs.items()[0][1]),)))))
msgbuf.extend([", %s: %s %s" % tuple(map(hr, (k, v, type(v),))) for k, v in ___kwargs.items()[1:]])
raise AssertionError, "".join(msgbuf)
def postcondition(___cond=False, *___args, **___kwargs):
if ___cond:
return True
msgbuf=["postcondition", ]
if ___args or ___kwargs:
msgbuf.append(": ")
if ___args:
msgbuf.append("%s %s" % tuple(map(hr, (___args[0], type(___args[0]),))))
msgbuf.extend([", %s %s" % tuple(map(hr, (arg, type(arg),))) for arg in ___args[1:]])
if ___kwargs:
msgbuf.append(", %s: %s %s" % ((___kwargs.items()[0][0],) + tuple(map(hr, (___kwargs.items()[0][1], type(___kwargs.items()[0][1]),)))))
else:
if ___kwargs:
msgbuf.append("%s: %s %s" % ((___kwargs.items()[0][0],) + tuple(map(hr, (___kwargs.items()[0][1], type(___kwargs.items()[0][1]),)))))
msgbuf.extend([", %s: %s %s" % tuple(map(hr, (k, v, type(v),))) for k, v in ___kwargs.items()[1:]])
raise AssertionError, "".join(msgbuf)