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							730 lines
						
					
					
						
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								#!/usr/bin/env python
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								#
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								# Copyright 2006, Google Inc.
							 | 
						|
								# All rights reserved.
							 | 
						|
								#
							 | 
						|
								# Redistribution and use in source and binary forms, with or without
							 | 
						|
								# modification, are permitted provided that the following conditions are
							 | 
						|
								# met:
							 | 
						|
								#
							 | 
						|
								#     * Redistributions of source code must retain the above copyright
							 | 
						|
								# notice, this list of conditions and the following disclaimer.
							 | 
						|
								#     * Redistributions in binary form must reproduce the above
							 | 
						|
								# copyright notice, this list of conditions and the following disclaimer
							 | 
						|
								# in the documentation and/or other materials provided with the
							 | 
						|
								# distribution.
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						|
								#     * Neither the name of Google Inc. nor the names of its
							 | 
						|
								# contributors may be used to endorse or promote products derived from
							 | 
						|
								# this software without specific prior written permission.
							 | 
						|
								#
							 | 
						|
								# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
							 | 
						|
								# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
							 | 
						|
								# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
							 | 
						|
								# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
							 | 
						|
								# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
							 | 
						|
								# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
							 | 
						|
								# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
							 | 
						|
								# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
							 | 
						|
								# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
							 | 
						|
								# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
							 | 
						|
								# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
							 | 
						|
								
							 | 
						|
								"""gen_gtest_pred_impl.py v0.1
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								Generates the implementation of Google Test predicate assertions and
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								accompanying tests.
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								Usage:
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								  gen_gtest_pred_impl.py MAX_ARITY
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								where MAX_ARITY is a positive integer.
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								The command generates the implementation of up-to MAX_ARITY-ary
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								predicate assertions, and writes it to file gtest_pred_impl.h in the
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								directory where the script is.  It also generates the accompanying
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								unit test in file gtest_pred_impl_unittest.cc.
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						|
								"""
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								__author__ = 'wan@google.com (Zhanyong Wan)'
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								import os
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								import sys
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								import time
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								# Where this script is.
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								SCRIPT_DIR = os.path.dirname(sys.argv[0])
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								# Where to store the generated header.
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								HEADER = os.path.join(SCRIPT_DIR, '../include/gtest/gtest_pred_impl.h')
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								# Where to store the generated unit test.
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								UNIT_TEST = os.path.join(SCRIPT_DIR, '../test/gtest_pred_impl_unittest.cc')
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								def HeaderPreamble(n):
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								  """Returns the preamble for the header file.
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								  Args:
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								    n:  the maximum arity of the predicate macros to be generated.
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								  """
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								  # A map that defines the values used in the preamble template.
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								  DEFS = {
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								    'today' : time.strftime('%m/%d/%Y'),
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								    'year' : time.strftime('%Y'),
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								    'command' : '%s %s' % (os.path.basename(sys.argv[0]), n),
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								    'n' : n
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								    }
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								  return (
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								"""// Copyright 2006, Google Inc.
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								// All rights reserved.
							 | 
						|
								//
							 | 
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								// Redistribution and use in source and binary forms, with or without
							 | 
						|
								// modification, are permitted provided that the following conditions are
							 | 
						|
								// met:
							 | 
						|
								//
							 | 
						|
								//     * Redistributions of source code must retain the above copyright
							 | 
						|
								// notice, this list of conditions and the following disclaimer.
							 | 
						|
								//     * Redistributions in binary form must reproduce the above
							 | 
						|
								// copyright notice, this list of conditions and the following disclaimer
							 | 
						|
								// in the documentation and/or other materials provided with the
							 | 
						|
								// distribution.
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						|
								//     * Neither the name of Google Inc. nor the names of its
							 | 
						|
								// contributors may be used to endorse or promote products derived from
							 | 
						|
								// this software without specific prior written permission.
							 | 
						|
								//
							 | 
						|
								// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
							 | 
						|
								// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
							 | 
						|
								// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
							 | 
						|
								// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
							 | 
						|
								// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
							 | 
						|
								// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
							 | 
						|
								// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
							 | 
						|
								// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
							 | 
						|
								// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
							 | 
						|
								// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
							 | 
						|
								// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
							 | 
						|
								
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								// This file is AUTOMATICALLY GENERATED on %(today)s by command
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								// '%(command)s'.  DO NOT EDIT BY HAND!
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								//
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								// Implements a family of generic predicate assertion macros.
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								#ifndef GTEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
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								#define GTEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
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								// Makes sure this header is not included before gtest.h.
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								#ifndef GTEST_INCLUDE_GTEST_GTEST_H_
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								# error Do not include gtest_pred_impl.h directly.  Include gtest.h instead.
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								#endif  // GTEST_INCLUDE_GTEST_GTEST_H_
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								// This header implements a family of generic predicate assertion
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								// macros:
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								//
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								//   ASSERT_PRED_FORMAT1(pred_format, v1)
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								//   ASSERT_PRED_FORMAT2(pred_format, v1, v2)
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								//   ...
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								//
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								// where pred_format is a function or functor that takes n (in the
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								// case of ASSERT_PRED_FORMATn) values and their source expression
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								// text, and returns a testing::AssertionResult.  See the definition
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								// of ASSERT_EQ in gtest.h for an example.
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								//
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								// If you don't care about formatting, you can use the more
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								// restrictive version:
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								//
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								//   ASSERT_PRED1(pred, v1)
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								//   ASSERT_PRED2(pred, v1, v2)
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								//   ...
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								//
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								// where pred is an n-ary function or functor that returns bool,
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								// and the values v1, v2, ..., must support the << operator for
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								// streaming to std::ostream.
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								//
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								// We also define the EXPECT_* variations.
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								//
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								// For now we only support predicates whose arity is at most %(n)s.
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								// Please email googletestframework@googlegroups.com if you need
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								// support for higher arities.
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								// GTEST_ASSERT_ is the basic statement to which all of the assertions
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								// in this file reduce.  Don't use this in your code.
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								#define GTEST_ASSERT_(expression, on_failure) \\
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								  GTEST_AMBIGUOUS_ELSE_BLOCKER_ \\
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								  if (const ::testing::AssertionResult gtest_ar = (expression)) \\
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								    ; \\
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								  else \\
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								    on_failure(gtest_ar.failure_message())
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								""" % DEFS)
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								def Arity(n):
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								  """Returns the English name of the given arity."""
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								  if n < 0:
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								    return None
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								  elif n <= 3:
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								    return ['nullary', 'unary', 'binary', 'ternary'][n]
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								  else:
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								    return '%s-ary' % n
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								def Title(word):
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								  """Returns the given word in title case.  The difference between
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								  this and string's title() method is that Title('4-ary') is '4-ary'
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								  while '4-ary'.title() is '4-Ary'."""
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								  return word[0].upper() + word[1:]
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								def OneTo(n):
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								  """Returns the list [1, 2, 3, ..., n]."""
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								  return range(1, n + 1)
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								def Iter(n, format, sep=''):
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								  """Given a positive integer n, a format string that contains 0 or
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								  more '%s' format specs, and optionally a separator string, returns
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								  the join of n strings, each formatted with the format string on an
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								  iterator ranged from 1 to n.
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								  Example:
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								  Iter(3, 'v%s', sep=', ') returns 'v1, v2, v3'.
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						|
								  """
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								  # How many '%s' specs are in format?
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								  spec_count = len(format.split('%s')) - 1
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								  return sep.join([format % (spec_count * (i,)) for i in OneTo(n)])
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								def ImplementationForArity(n):
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								  """Returns the implementation of n-ary predicate assertions."""
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							 | 
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								  # A map the defines the values used in the implementation template.
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								  DEFS = {
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								    'n' : str(n),
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								    'vs' : Iter(n, 'v%s', sep=', '),
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								    'vts' : Iter(n, '#v%s', sep=', '),
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								    'arity' : Arity(n),
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								    'Arity' : Title(Arity(n))
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								    }
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								  impl = """
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								// Helper function for implementing {EXPECT|ASSERT}_PRED%(n)s.  Don't use
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								// this in your code.
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								template <typename Pred""" % DEFS
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								  impl += Iter(n, """,
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								          typename T%s""")
							 | 
						|
								
							 | 
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								  impl += """>
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								AssertionResult AssertPred%(n)sHelper(const char* pred_text""" % DEFS
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								  impl += Iter(n, """,
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								                                  const char* e%s""")
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							 | 
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								  impl += """,
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								                                  Pred pred"""
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						|
								
							 | 
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								  impl += Iter(n, """,
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								                                  const T%s& v%s""")
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							 | 
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								  impl += """) {
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								  if (pred(%(vs)s)) return AssertionSuccess();
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						|
								
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								""" % DEFS
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						|
								
							 | 
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								  impl += '  return AssertionFailure() << pred_text << "("'
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							 | 
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								  impl += Iter(n, """
							 | 
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								                            << e%s""", sep=' << ", "')
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						|
								
							 | 
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								  impl += ' << ") evaluates to false, where"'
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						|
								
							 | 
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								  impl += Iter(n, """
							 | 
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								                            << "\\n" << e%s << " evaluates to " << v%s""")
							 | 
						|
								
							 | 
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								  impl += """;
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						|
								}
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						|
								
							 | 
						|
								// Internal macro for implementing {EXPECT|ASSERT}_PRED_FORMAT%(n)s.
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						|
								// Don't use this in your code.
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								#define GTEST_PRED_FORMAT%(n)s_(pred_format, %(vs)s, on_failure)\\
							 | 
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								  GTEST_ASSERT_(pred_format(%(vts)s, %(vs)s), \\
							 | 
						|
								                on_failure)
							 | 
						|
								
							 | 
						|
								// Internal macro for implementing {EXPECT|ASSERT}_PRED%(n)s.  Don't use
							 | 
						|
								// this in your code.
							 | 
						|
								#define GTEST_PRED%(n)s_(pred, %(vs)s, on_failure)\\
							 | 
						|
								  GTEST_ASSERT_(::testing::AssertPred%(n)sHelper(#pred""" % DEFS
							 | 
						|
								
							 | 
						|
								  impl += Iter(n, """, \\
							 | 
						|
								                                             #v%s""")
							 | 
						|
								
							 | 
						|
								  impl += """, \\
							 | 
						|
								                                             pred"""
							 | 
						|
								
							 | 
						|
								  impl += Iter(n, """, \\
							 | 
						|
								                                             v%s""")
							 | 
						|
								
							 | 
						|
								  impl += """), on_failure)
							 | 
						|
								
							 | 
						|
								// %(Arity)s predicate assertion macros.
							 | 
						|
								#define EXPECT_PRED_FORMAT%(n)s(pred_format, %(vs)s) \\
							 | 
						|
								  GTEST_PRED_FORMAT%(n)s_(pred_format, %(vs)s, GTEST_NONFATAL_FAILURE_)
							 | 
						|
								#define EXPECT_PRED%(n)s(pred, %(vs)s) \\
							 | 
						|
								  GTEST_PRED%(n)s_(pred, %(vs)s, GTEST_NONFATAL_FAILURE_)
							 | 
						|
								#define ASSERT_PRED_FORMAT%(n)s(pred_format, %(vs)s) \\
							 | 
						|
								  GTEST_PRED_FORMAT%(n)s_(pred_format, %(vs)s, GTEST_FATAL_FAILURE_)
							 | 
						|
								#define ASSERT_PRED%(n)s(pred, %(vs)s) \\
							 | 
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								  GTEST_PRED%(n)s_(pred, %(vs)s, GTEST_FATAL_FAILURE_)
							 | 
						|
								
							 | 
						|
								""" % DEFS
							 | 
						|
								
							 | 
						|
								  return impl
							 | 
						|
								
							 | 
						|
								
							 | 
						|
								def HeaderPostamble():
							 | 
						|
								  """Returns the postamble for the header file."""
							 | 
						|
								
							 | 
						|
								  return """
							 | 
						|
								
							 | 
						|
								#endif  // GTEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
							 | 
						|
								"""
							 | 
						|
								
							 | 
						|
								
							 | 
						|
								def GenerateFile(path, content):
							 | 
						|
								  """Given a file path and a content string, overwrites it with the
							 | 
						|
								  given content."""
							 | 
						|
								
							 | 
						|
								  print 'Updating file %s . . .' % path
							 | 
						|
								
							 | 
						|
								  f = file(path, 'w+')
							 | 
						|
								  print >>f, content,
							 | 
						|
								  f.close()
							 | 
						|
								
							 | 
						|
								  print 'File %s has been updated.' % path
							 | 
						|
								
							 | 
						|
								
							 | 
						|
								def GenerateHeader(n):
							 | 
						|
								  """Given the maximum arity n, updates the header file that implements
							 | 
						|
								  the predicate assertions."""
							 | 
						|
								
							 | 
						|
								  GenerateFile(HEADER,
							 | 
						|
								               HeaderPreamble(n)
							 | 
						|
								               + ''.join([ImplementationForArity(i) for i in OneTo(n)])
							 | 
						|
								               + HeaderPostamble())
							 | 
						|
								
							 | 
						|
								
							 | 
						|
								def UnitTestPreamble():
							 | 
						|
								  """Returns the preamble for the unit test file."""
							 | 
						|
								
							 | 
						|
								  # A map that defines the values used in the preamble template.
							 | 
						|
								  DEFS = {
							 | 
						|
								    'today' : time.strftime('%m/%d/%Y'),
							 | 
						|
								    'year' : time.strftime('%Y'),
							 | 
						|
								    'command' : '%s %s' % (os.path.basename(sys.argv[0]), sys.argv[1]),
							 | 
						|
								    }
							 | 
						|
								
							 | 
						|
								  return (
							 | 
						|
								"""// Copyright 2006, Google Inc.
							 | 
						|
								// All rights reserved.
							 | 
						|
								//
							 | 
						|
								// Redistribution and use in source and binary forms, with or without
							 | 
						|
								// modification, are permitted provided that the following conditions are
							 | 
						|
								// met:
							 | 
						|
								//
							 | 
						|
								//     * Redistributions of source code must retain the above copyright
							 | 
						|
								// notice, this list of conditions and the following disclaimer.
							 | 
						|
								//     * Redistributions in binary form must reproduce the above
							 | 
						|
								// copyright notice, this list of conditions and the following disclaimer
							 | 
						|
								// in the documentation and/or other materials provided with the
							 | 
						|
								// distribution.
							 | 
						|
								//     * Neither the name of Google Inc. nor the names of its
							 | 
						|
								// contributors may be used to endorse or promote products derived from
							 | 
						|
								// this software without specific prior written permission.
							 | 
						|
								//
							 | 
						|
								// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
							 | 
						|
								// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
							 | 
						|
								// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
							 | 
						|
								// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
							 | 
						|
								// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
							 | 
						|
								// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
							 | 
						|
								// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
							 | 
						|
								// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
							 | 
						|
								// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
							 | 
						|
								// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
							 | 
						|
								// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
							 | 
						|
								
							 | 
						|
								// This file is AUTOMATICALLY GENERATED on %(today)s by command
							 | 
						|
								// '%(command)s'.  DO NOT EDIT BY HAND!
							 | 
						|
								
							 | 
						|
								// Regression test for gtest_pred_impl.h
							 | 
						|
								//
							 | 
						|
								// This file is generated by a script and quite long.  If you intend to
							 | 
						|
								// learn how Google Test works by reading its unit tests, read
							 | 
						|
								// gtest_unittest.cc instead.
							 | 
						|
								//
							 | 
						|
								// This is intended as a regression test for the Google Test predicate
							 | 
						|
								// assertions.  We compile it as part of the gtest_unittest target
							 | 
						|
								// only to keep the implementation tidy and compact, as it is quite
							 | 
						|
								// involved to set up the stage for testing Google Test using Google
							 | 
						|
								// Test itself.
							 | 
						|
								//
							 | 
						|
								// Currently, gtest_unittest takes ~11 seconds to run in the testing
							 | 
						|
								// daemon.  In the future, if it grows too large and needs much more
							 | 
						|
								// time to finish, we should consider separating this file into a
							 | 
						|
								// stand-alone regression test.
							 | 
						|
								
							 | 
						|
								#include <iostream>
							 | 
						|
								
							 | 
						|
								#include "gtest/gtest.h"
							 | 
						|
								#include "gtest/gtest-spi.h"
							 | 
						|
								
							 | 
						|
								// A user-defined data type.
							 | 
						|
								struct Bool {
							 | 
						|
								  explicit Bool(int val) : value(val != 0) {}
							 | 
						|
								
							 | 
						|
								  bool operator>(int n) const { return value > Bool(n).value; }
							 | 
						|
								
							 | 
						|
								  Bool operator+(const Bool& rhs) const { return Bool(value + rhs.value); }
							 | 
						|
								
							 | 
						|
								  bool operator==(const Bool& rhs) const { return value == rhs.value; }
							 | 
						|
								
							 | 
						|
								  bool value;
							 | 
						|
								};
							 | 
						|
								
							 | 
						|
								// Enables Bool to be used in assertions.
							 | 
						|
								std::ostream& operator<<(std::ostream& os, const Bool& x) {
							 | 
						|
								  return os << (x.value ? "true" : "false");
							 | 
						|
								}
							 | 
						|
								
							 | 
						|
								""" % DEFS)
							 | 
						|
								
							 | 
						|
								
							 | 
						|
								def TestsForArity(n):
							 | 
						|
								  """Returns the tests for n-ary predicate assertions."""
							 | 
						|
								
							 | 
						|
								  # A map that defines the values used in the template for the tests.
							 | 
						|
								  DEFS = {
							 | 
						|
								    'n' : n,
							 | 
						|
								    'es' : Iter(n, 'e%s', sep=', '),
							 | 
						|
								    'vs' : Iter(n, 'v%s', sep=', '),
							 | 
						|
								    'vts' : Iter(n, '#v%s', sep=', '),
							 | 
						|
								    'tvs' : Iter(n, 'T%s v%s', sep=', '),
							 | 
						|
								    'int_vs' : Iter(n, 'int v%s', sep=', '),
							 | 
						|
								    'Bool_vs' : Iter(n, 'Bool v%s', sep=', '),
							 | 
						|
								    'types' : Iter(n, 'typename T%s', sep=', '),
							 | 
						|
								    'v_sum' : Iter(n, 'v%s', sep=' + '),
							 | 
						|
								    'arity' : Arity(n),
							 | 
						|
								    'Arity' : Title(Arity(n)),
							 | 
						|
								    }
							 | 
						|
								
							 | 
						|
								  tests = (
							 | 
						|
								"""// Sample functions/functors for testing %(arity)s predicate assertions.
							 | 
						|
								
							 | 
						|
								// A %(arity)s predicate function.
							 | 
						|
								template <%(types)s>
							 | 
						|
								bool PredFunction%(n)s(%(tvs)s) {
							 | 
						|
								  return %(v_sum)s > 0;
							 | 
						|
								}
							 | 
						|
								
							 | 
						|
								// The following two functions are needed to circumvent a bug in
							 | 
						|
								// gcc 2.95.3, which sometimes has problem with the above template
							 | 
						|
								// function.
							 | 
						|
								bool PredFunction%(n)sInt(%(int_vs)s) {
							 | 
						|
								  return %(v_sum)s > 0;
							 | 
						|
								}
							 | 
						|
								bool PredFunction%(n)sBool(%(Bool_vs)s) {
							 | 
						|
								  return %(v_sum)s > 0;
							 | 
						|
								}
							 | 
						|
								""" % DEFS)
							 | 
						|
								
							 | 
						|
								  tests += """
							 | 
						|
								// A %(arity)s predicate functor.
							 | 
						|
								struct PredFunctor%(n)s {
							 | 
						|
								  template <%(types)s>
							 | 
						|
								  bool operator()(""" % DEFS
							 | 
						|
								
							 | 
						|
								  tests += Iter(n, 'const T%s& v%s', sep=""",
							 | 
						|
								                  """)
							 | 
						|
								
							 | 
						|
								  tests += """) {
							 | 
						|
								    return %(v_sum)s > 0;
							 | 
						|
								  }
							 | 
						|
								};
							 | 
						|
								""" % DEFS
							 | 
						|
								
							 | 
						|
								  tests += """
							 | 
						|
								// A %(arity)s predicate-formatter function.
							 | 
						|
								template <%(types)s>
							 | 
						|
								testing::AssertionResult PredFormatFunction%(n)s(""" % DEFS
							 | 
						|
								
							 | 
						|
								  tests += Iter(n, 'const char* e%s', sep=""",
							 | 
						|
								                                             """)
							 | 
						|
								
							 | 
						|
								  tests += Iter(n, """,
							 | 
						|
								                                             const T%s& v%s""")
							 | 
						|
								
							 | 
						|
								  tests += """) {
							 | 
						|
								  if (PredFunction%(n)s(%(vs)s))
							 | 
						|
								    return testing::AssertionSuccess();
							 | 
						|
								
							 | 
						|
								  return testing::AssertionFailure()
							 | 
						|
								      << """ % DEFS
							 | 
						|
								
							 | 
						|
								  tests += Iter(n, 'e%s', sep=' << " + " << ')
							 | 
						|
								
							 | 
						|
								  tests += """
							 | 
						|
								      << " is expected to be positive, but evaluates to "
							 | 
						|
								      << %(v_sum)s << ".";
							 | 
						|
								}
							 | 
						|
								""" % DEFS
							 | 
						|
								
							 | 
						|
								  tests += """
							 | 
						|
								// A %(arity)s predicate-formatter functor.
							 | 
						|
								struct PredFormatFunctor%(n)s {
							 | 
						|
								  template <%(types)s>
							 | 
						|
								  testing::AssertionResult operator()(""" % DEFS
							 | 
						|
								
							 | 
						|
								  tests += Iter(n, 'const char* e%s', sep=""",
							 | 
						|
								                                      """)
							 | 
						|
								
							 | 
						|
								  tests += Iter(n, """,
							 | 
						|
								                                      const T%s& v%s""")
							 | 
						|
								
							 | 
						|
								  tests += """) const {
							 | 
						|
								    return PredFormatFunction%(n)s(%(es)s, %(vs)s);
							 | 
						|
								  }
							 | 
						|
								};
							 | 
						|
								""" % DEFS
							 | 
						|
								
							 | 
						|
								  tests += """
							 | 
						|
								// Tests for {EXPECT|ASSERT}_PRED_FORMAT%(n)s.
							 | 
						|
								
							 | 
						|
								class Predicate%(n)sTest : public testing::Test {
							 | 
						|
								 protected:
							 | 
						|
								  virtual void SetUp() {
							 | 
						|
								    expected_to_finish_ = true;
							 | 
						|
								    finished_ = false;""" % DEFS
							 | 
						|
								
							 | 
						|
								  tests += """
							 | 
						|
								    """ + Iter(n, 'n%s_ = ') + """0;
							 | 
						|
								  }
							 | 
						|
								"""
							 | 
						|
								
							 | 
						|
								  tests += """
							 | 
						|
								  virtual void TearDown() {
							 | 
						|
								    // Verifies that each of the predicate's arguments was evaluated
							 | 
						|
								    // exactly once."""
							 | 
						|
								
							 | 
						|
								  tests += ''.join(["""
							 | 
						|
								    EXPECT_EQ(1, n%s_) <<
							 | 
						|
								        "The predicate assertion didn't evaluate argument %s "
							 | 
						|
								        "exactly once.";""" % (i, i + 1) for i in OneTo(n)])
							 | 
						|
								
							 | 
						|
								  tests += """
							 | 
						|
								
							 | 
						|
								    // Verifies that the control flow in the test function is expected.
							 | 
						|
								    if (expected_to_finish_ && !finished_) {
							 | 
						|
								      FAIL() << "The predicate assertion unexpactedly aborted the test.";
							 | 
						|
								    } else if (!expected_to_finish_ && finished_) {
							 | 
						|
								      FAIL() << "The failed predicate assertion didn't abort the test "
							 | 
						|
								                "as expected.";
							 | 
						|
								    }
							 | 
						|
								  }
							 | 
						|
								
							 | 
						|
								  // true iff the test function is expected to run to finish.
							 | 
						|
								  static bool expected_to_finish_;
							 | 
						|
								
							 | 
						|
								  // true iff the test function did run to finish.
							 | 
						|
								  static bool finished_;
							 | 
						|
								""" % DEFS
							 | 
						|
								
							 | 
						|
								  tests += Iter(n, """
							 | 
						|
								  static int n%s_;""")
							 | 
						|
								
							 | 
						|
								  tests += """
							 | 
						|
								};
							 | 
						|
								
							 | 
						|
								bool Predicate%(n)sTest::expected_to_finish_;
							 | 
						|
								bool Predicate%(n)sTest::finished_;
							 | 
						|
								""" % DEFS
							 | 
						|
								
							 | 
						|
								  tests += Iter(n, """int Predicate%%(n)sTest::n%s_;
							 | 
						|
								""") % DEFS
							 | 
						|
								
							 | 
						|
								  tests += """
							 | 
						|
								typedef Predicate%(n)sTest EXPECT_PRED_FORMAT%(n)sTest;
							 | 
						|
								typedef Predicate%(n)sTest ASSERT_PRED_FORMAT%(n)sTest;
							 | 
						|
								typedef Predicate%(n)sTest EXPECT_PRED%(n)sTest;
							 | 
						|
								typedef Predicate%(n)sTest ASSERT_PRED%(n)sTest;
							 | 
						|
								""" % DEFS
							 | 
						|
								
							 | 
						|
								  def GenTest(use_format, use_assert, expect_failure,
							 | 
						|
								              use_functor, use_user_type):
							 | 
						|
								    """Returns the test for a predicate assertion macro.
							 | 
						|
								
							 | 
						|
								    Args:
							 | 
						|
								      use_format:     true iff the assertion is a *_PRED_FORMAT*.
							 | 
						|
								      use_assert:     true iff the assertion is a ASSERT_*.
							 | 
						|
								      expect_failure: true iff the assertion is expected to fail.
							 | 
						|
								      use_functor:    true iff the first argument of the assertion is
							 | 
						|
								                      a functor (as opposed to a function)
							 | 
						|
								      use_user_type:  true iff the predicate functor/function takes
							 | 
						|
								                      argument(s) of a user-defined type.
							 | 
						|
								
							 | 
						|
								    Example:
							 | 
						|
								
							 | 
						|
								      GenTest(1, 0, 0, 1, 0) returns a test that tests the behavior
							 | 
						|
								      of a successful EXPECT_PRED_FORMATn() that takes a functor
							 | 
						|
								      whose arguments have built-in types."""
							 | 
						|
								
							 | 
						|
								    if use_assert:
							 | 
						|
								      assrt = 'ASSERT'  # 'assert' is reserved, so we cannot use
							 | 
						|
								                        # that identifier here.
							 | 
						|
								    else:
							 | 
						|
								      assrt = 'EXPECT'
							 | 
						|
								
							 | 
						|
								    assertion = assrt + '_PRED'
							 | 
						|
								
							 | 
						|
								    if use_format:
							 | 
						|
								      pred_format = 'PredFormat'
							 | 
						|
								      assertion += '_FORMAT'
							 | 
						|
								    else:
							 | 
						|
								      pred_format = 'Pred'
							 | 
						|
								
							 | 
						|
								    assertion += '%(n)s' % DEFS
							 | 
						|
								
							 | 
						|
								    if use_functor:
							 | 
						|
								      pred_format_type = 'functor'
							 | 
						|
								      pred_format += 'Functor%(n)s()'
							 | 
						|
								    else:
							 | 
						|
								      pred_format_type = 'function'
							 | 
						|
								      pred_format += 'Function%(n)s'
							 | 
						|
								      if not use_format:
							 | 
						|
								        if use_user_type:
							 | 
						|
								          pred_format += 'Bool'
							 | 
						|
								        else:
							 | 
						|
								          pred_format += 'Int'
							 | 
						|
								
							 | 
						|
								    test_name = pred_format_type.title()
							 | 
						|
								
							 | 
						|
								    if use_user_type:
							 | 
						|
								      arg_type = 'user-defined type (Bool)'
							 | 
						|
								      test_name += 'OnUserType'
							 | 
						|
								      if expect_failure:
							 | 
						|
								        arg = 'Bool(n%s_++)'
							 | 
						|
								      else:
							 | 
						|
								        arg = 'Bool(++n%s_)'
							 | 
						|
								    else:
							 | 
						|
								      arg_type = 'built-in type (int)'
							 | 
						|
								      test_name += 'OnBuiltInType'
							 | 
						|
								      if expect_failure:
							 | 
						|
								        arg = 'n%s_++'
							 | 
						|
								      else:
							 | 
						|
								        arg = '++n%s_'
							 | 
						|
								
							 | 
						|
								    if expect_failure:
							 | 
						|
								      successful_or_failed = 'failed'
							 | 
						|
								      expected_or_not = 'expected.'
							 | 
						|
								      test_name +=  'Failure'
							 | 
						|
								    else:
							 | 
						|
								      successful_or_failed = 'successful'
							 | 
						|
								      expected_or_not = 'UNEXPECTED!'
							 | 
						|
								      test_name +=  'Success'
							 | 
						|
								
							 | 
						|
								    # A map that defines the values used in the test template.
							 | 
						|
								    defs = DEFS.copy()
							 | 
						|
								    defs.update({
							 | 
						|
								      'assert' : assrt,
							 | 
						|
								      'assertion' : assertion,
							 | 
						|
								      'test_name' : test_name,
							 | 
						|
								      'pf_type' : pred_format_type,
							 | 
						|
								      'pf' : pred_format,
							 | 
						|
								      'arg_type' : arg_type,
							 | 
						|
								      'arg' : arg,
							 | 
						|
								      'successful' : successful_or_failed,
							 | 
						|
								      'expected' : expected_or_not,
							 | 
						|
								      })
							 | 
						|
								
							 | 
						|
								    test = """
							 | 
						|
								// Tests a %(successful)s %(assertion)s where the
							 | 
						|
								// predicate-formatter is a %(pf_type)s on a %(arg_type)s.
							 | 
						|
								TEST_F(%(assertion)sTest, %(test_name)s) {""" % defs
							 | 
						|
								
							 | 
						|
								    indent = (len(assertion) + 3)*' '
							 | 
						|
								    extra_indent = ''
							 | 
						|
								
							 | 
						|
								    if expect_failure:
							 | 
						|
								      extra_indent = '  '
							 | 
						|
								      if use_assert:
							 | 
						|
								        test += """
							 | 
						|
								  expected_to_finish_ = false;
							 | 
						|
								  EXPECT_FATAL_FAILURE({  // NOLINT"""
							 | 
						|
								      else:
							 | 
						|
								        test += """
							 | 
						|
								  EXPECT_NONFATAL_FAILURE({  // NOLINT"""
							 | 
						|
								
							 | 
						|
								    test += '\n' + extra_indent + """  %(assertion)s(%(pf)s""" % defs
							 | 
						|
								
							 | 
						|
								    test = test % defs
							 | 
						|
								    test += Iter(n, ',\n' + indent + extra_indent + '%(arg)s' % defs)
							 | 
						|
								    test += ');\n' + extra_indent + '  finished_ = true;\n'
							 | 
						|
								
							 | 
						|
								    if expect_failure:
							 | 
						|
								      test += '  }, "");\n'
							 | 
						|
								
							 | 
						|
								    test += '}\n'
							 | 
						|
								    return test
							 | 
						|
								
							 | 
						|
								  # Generates tests for all 2**6 = 64 combinations.
							 | 
						|
								  tests += ''.join([GenTest(use_format, use_assert, expect_failure,
							 | 
						|
								                            use_functor, use_user_type)
							 | 
						|
								                    for use_format in [0, 1]
							 | 
						|
								                    for use_assert in [0, 1]
							 | 
						|
								                    for expect_failure in [0, 1]
							 | 
						|
								                    for use_functor in [0, 1]
							 | 
						|
								                    for use_user_type in [0, 1]
							 | 
						|
								                    ])
							 | 
						|
								
							 | 
						|
								  return tests
							 | 
						|
								
							 | 
						|
								
							 | 
						|
								def UnitTestPostamble():
							 | 
						|
								  """Returns the postamble for the tests."""
							 | 
						|
								
							 | 
						|
								  return ''
							 | 
						|
								
							 | 
						|
								
							 | 
						|
								def GenerateUnitTest(n):
							 | 
						|
								  """Returns the tests for up-to n-ary predicate assertions."""
							 | 
						|
								
							 | 
						|
								  GenerateFile(UNIT_TEST,
							 | 
						|
								               UnitTestPreamble()
							 | 
						|
								               + ''.join([TestsForArity(i) for i in OneTo(n)])
							 | 
						|
								               + UnitTestPostamble())
							 | 
						|
								
							 | 
						|
								
							 | 
						|
								def _Main():
							 | 
						|
								  """The entry point of the script.  Generates the header file and its
							 | 
						|
								  unit test."""
							 | 
						|
								
							 | 
						|
								  if len(sys.argv) != 2:
							 | 
						|
								    print __doc__
							 | 
						|
								    print 'Author: ' + __author__
							 | 
						|
								    sys.exit(1)
							 | 
						|
								
							 | 
						|
								  n = int(sys.argv[1])
							 | 
						|
								  GenerateHeader(n)
							 | 
						|
								  GenerateUnitTest(n)
							 | 
						|
								
							 | 
						|
								
							 | 
						|
								if __name__ == '__main__':
							 | 
						|
								  _Main()
							 |