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				| #!/usr/bin/env python | |
| # | |
| # 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. | |
| 
 | |
| """gen_gtest_pred_impl.py v0.1 | |
|  | |
| Generates the implementation of Google Test predicate assertions and | |
| accompanying tests. | |
|  | |
| Usage: | |
|  | |
|   gen_gtest_pred_impl.py MAX_ARITY | |
|  | |
| where MAX_ARITY is a positive integer. | |
|  | |
| The command generates the implementation of up-to MAX_ARITY-ary | |
| predicate assertions, and writes it to file gtest_pred_impl.h in the | |
| directory where the script is.  It also generates the accompanying | |
| unit test in file gtest_pred_impl_unittest.cc. | |
| """ | |
| 
 | |
| __author__ = 'wan@google.com (Zhanyong Wan)' | |
| 
 | |
| import os | |
| import sys | |
| import time | |
| 
 | |
| # Where this script is. | |
| SCRIPT_DIR = os.path.dirname(sys.argv[0]) | |
| 
 | |
| # Where to store the generated header. | |
| HEADER = os.path.join(SCRIPT_DIR, '../include/gtest/gtest_pred_impl.h') | |
| 
 | |
| # Where to store the generated unit test. | |
| UNIT_TEST = os.path.join(SCRIPT_DIR, '../test/gtest_pred_impl_unittest.cc') | |
| 
 | |
| 
 | |
| def HeaderPreamble(n): | |
|   """Returns the preamble for the header file. | |
|  | |
|   Args: | |
|     n:  the maximum arity of the predicate macros to be generated. | |
|   """ | |
| 
 | |
|   # 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]), n), | |
|     'n' : n | |
|     } | |
| 
 | |
|   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! | |
| // | |
| // Implements a family of generic predicate assertion macros. | |
|  | |
| #ifndef GTEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_ | |
| #define GTEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_ | |
|  | |
| // Makes sure this header is not included before gtest.h. | |
| #ifndef GTEST_INCLUDE_GTEST_GTEST_H_ | |
| #error Do not include gtest_pred_impl.h directly.  Include gtest.h instead. | |
| #endif  // GTEST_INCLUDE_GTEST_GTEST_H_ | |
|  | |
| // This header implements a family of generic predicate assertion | |
| // macros: | |
| // | |
| //   ASSERT_PRED_FORMAT1(pred_format, v1) | |
| //   ASSERT_PRED_FORMAT2(pred_format, v1, v2) | |
| //   ... | |
| // | |
| // where pred_format is a function or functor that takes n (in the | |
| // case of ASSERT_PRED_FORMATn) values and their source expression | |
| // text, and returns a testing::AssertionResult.  See the definition | |
| // of ASSERT_EQ in gtest.h for an example. | |
| // | |
| // If you don't care about formatting, you can use the more | |
| // restrictive version: | |
| // | |
| //   ASSERT_PRED1(pred, v1) | |
| //   ASSERT_PRED2(pred, v1, v2) | |
| //   ... | |
| // | |
| // where pred is an n-ary function or functor that returns bool, | |
| // and the values v1, v2, ..., must support the << operator for | |
| // streaming to std::ostream. | |
| // | |
| // We also define the EXPECT_* variations. | |
| // | |
| // For now we only support predicates whose arity is at most %(n)s. | |
| // Please email googletestframework@googlegroups.com if you need | |
| // support for higher arities. | |
|  | |
| // GTEST_ASSERT_ is the basic statement to which all of the assertions | |
| // in this file reduce.  Don't use this in your code. | |
|  | |
| #define GTEST_ASSERT_(expression, on_failure) \\ | |
|   GTEST_AMBIGUOUS_ELSE_BLOCKER_ \\ | |
|   if (const ::testing::AssertionResult gtest_ar = (expression)) \\ | |
|     ; \\ | |
|   else \\ | |
|     on_failure(gtest_ar.failure_message()) | |
| """ % DEFS) | |
| 
 | |
| 
 | |
| def Arity(n): | |
|   """Returns the English name of the given arity.""" | |
| 
 | |
|   if n < 0: | |
|     return None | |
|   elif n <= 3: | |
|     return ['nullary', 'unary', 'binary', 'ternary'][n] | |
|   else: | |
|     return '%s-ary' % n | |
| 
 | |
| 
 | |
| def Title(word): | |
|   """Returns the given word in title case.  The difference between | |
|   this and string's title() method is that Title('4-ary') is '4-ary' | |
|   while '4-ary'.title() is '4-Ary'.""" | |
| 
 | |
|   return word[0].upper() + word[1:] | |
| 
 | |
| 
 | |
| def OneTo(n): | |
|   """Returns the list [1, 2, 3, ..., n].""" | |
| 
 | |
|   return range(1, n + 1) | |
| 
 | |
| 
 | |
| def Iter(n, format, sep=''): | |
|   """Given a positive integer n, a format string that contains 0 or | |
|   more '%s' format specs, and optionally a separator string, returns | |
|   the join of n strings, each formatted with the format string on an | |
|   iterator ranged from 1 to n. | |
|  | |
|   Example: | |
|  | |
|   Iter(3, 'v%s', sep=', ') returns 'v1, v2, v3'. | |
|   """ | |
| 
 | |
|   # How many '%s' specs are in format? | |
|   spec_count = len(format.split('%s')) - 1 | |
|   return sep.join([format % (spec_count * (i,)) for i in OneTo(n)]) | |
| 
 | |
| 
 | |
| def ImplementationForArity(n): | |
|   """Returns the implementation of n-ary predicate assertions.""" | |
| 
 | |
|   # A map the defines the values used in the implementation template. | |
|   DEFS = { | |
|     'n' : str(n), | |
|     'vs' : Iter(n, 'v%s', sep=', '), | |
|     'vts' : Iter(n, '#v%s', sep=', '), | |
|     'arity' : Arity(n), | |
|     'Arity' : Title(Arity(n)) | |
|     } | |
| 
 | |
|   impl = """ | |
|  | |
| // Helper function for implementing {EXPECT|ASSERT}_PRED%(n)s.  Don't use | |
| // this in your code. | |
| template <typename Pred""" % DEFS | |
| 
 | |
|   impl += Iter(n, """, | |
|           typename T%s""") | |
| 
 | |
|   impl += """> | |
| AssertionResult AssertPred%(n)sHelper(const char* pred_text""" % DEFS | |
| 
 | |
|   impl += Iter(n, """, | |
|                                   const char* e%s""") | |
| 
 | |
|   impl += """, | |
|                                   Pred pred""" | |
| 
 | |
|   impl += Iter(n, """, | |
|                                   const T%s& v%s""") | |
| 
 | |
|   impl += """) { | |
|   if (pred(%(vs)s)) return AssertionSuccess(); | |
|  | |
| """ % DEFS | |
| 
 | |
|   impl += '  return AssertionFailure() << pred_text << "("' | |
| 
 | |
|   impl += Iter(n, """ | |
|                             << e%s""", sep=' << ", "') | |
| 
 | |
|   impl += ' << ") evaluates to false, where"' | |
| 
 | |
|   impl += Iter(n, """ | |
|                             << "\\n" << e%s << " evaluates to " << v%s""") | |
| 
 | |
|   impl += """; | |
| } | |
|  | |
| // Internal macro for implementing {EXPECT|ASSERT}_PRED_FORMAT%(n)s. | |
| // Don't use this in your code. | |
| #define GTEST_PRED_FORMAT%(n)s_(pred_format, %(vs)s, on_failure)\\ | |
|   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) \\ | |
|   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()
 |