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  1. // Copyright 2009, Google Inc.
  2. // All rights reserved.
  3. //
  4. // Redistribution and use in source and binary forms, with or without
  5. // modification, are permitted provided that the following conditions are
  6. // met:
  7. //
  8. //     * Redistributions of source code must retain the above copyright
  9. // notice, this list of conditions and the following disclaimer.
  10. //     * Redistributions in binary form must reproduce the above
  11. // copyright notice, this list of conditions and the following disclaimer
  12. // in the documentation and/or other materials provided with the
  13. // distribution.
  14. //     * Neither the name of Google Inc. nor the names of its
  15. // contributors may be used to endorse or promote products derived from
  16. // this software without specific prior written permission.
  17. //
  18. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19. // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20. // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21. // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22. // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23. // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24. // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25. // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26. // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27. // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28. // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29.  
  30.  
  31. // Tests Google Test's throw-on-failure mode with exceptions enabled.
  32.  
  33. #include "gtest/gtest.h"
  34.  
  35. #include <stdlib.h>
  36. #include <stdio.h>
  37. #include <string.h>
  38. #include <stdexcept>
  39.  
  40. // Prints the given failure message and exits the program with
  41. // non-zero.  We use this instead of a Google Test assertion to
  42. // indicate a failure, as the latter is been tested and cannot be
  43. // relied on.
  44. void Fail(const char* msg) {
  45.   printf("FAILURE: %s\n", msg);
  46.   fflush(stdout);
  47.   exit(1);
  48. }
  49.  
  50. // Tests that an assertion failure throws a subclass of
  51. // std::runtime_error.
  52. void TestFailureThrowsRuntimeError() {
  53.   testing::GTEST_FLAG(throw_on_failure) = true;
  54.  
  55.   // A successful assertion shouldn't throw.
  56.   try {
  57.     EXPECT_EQ(3, 3);
  58.   } catch(...) {
  59.     Fail("A successful assertion wrongfully threw.");
  60.   }
  61.  
  62.   // A failed assertion should throw a subclass of std::runtime_error.
  63.   try {
  64.     EXPECT_EQ(2, 3) << "Expected failure";
  65.   } catch(const std::runtime_error& e) {
  66.     if (strstr(e.what(), "Expected failure") != NULL)
  67.       return;
  68.  
  69.     printf("%s",
  70.            "A failed assertion did throw an exception of the right type, "
  71.            "but the message is incorrect.  Instead of containing \"Expected "
  72.            "failure\", it is:\n");
  73.     Fail(e.what());
  74.   } catch(...) {
  75.     Fail("A failed assertion threw the wrong type of exception.");
  76.   }
  77.   Fail("A failed assertion should've thrown but didn't.");
  78. }
  79.  
  80. int main(int argc, char** argv) {
  81.   testing::InitGoogleTest(&argc, argv);
  82.  
  83.   // We want to ensure that people can use Google Test assertions in
  84.   // other testing frameworks, as long as they initialize Google Test
  85.   // properly and set the thrown-on-failure mode.  Therefore, we don't
  86.   // use Google Test's constructs for defining and running tests
  87.   // (e.g. TEST and RUN_ALL_TESTS) here.
  88.  
  89.   TestFailureThrowsRuntimeError();
  90.   return 0;
  91. }
  92.