Home | History | Annotate | Download | only in test
      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 // Author: wan (at) google.com (Zhanyong Wan)
     31 
     32 // Tests Google Test's throw-on-failure mode with exceptions enabled.
     33 
     34 #include <gtest/gtest.h>
     35 
     36 #include <stdlib.h>
     37 #include <stdio.h>
     38 #include <string.h>
     39 #include <stdexcept>
     40 
     41 // Prints the given failure message and exits the program with
     42 // non-zero.  We use this instead of a Google Test assertion to
     43 // indicate a failure, as the latter is been tested and cannot be
     44 // relied on.
     45 void Fail(const char* msg) {
     46   printf("FAILURE: %s\n", msg);
     47   fflush(stdout);
     48   exit(1);
     49 }
     50 
     51 // Tests that an assertion failure throws a subclass of
     52 // std::runtime_error.
     53 void TestFailureThrowsRuntimeError() {
     54   testing::GTEST_FLAG(throw_on_failure) = true;
     55 
     56   // A successful assertion shouldn't throw.
     57   try {
     58     EXPECT_EQ(3, 3);
     59   } catch(...) {
     60     Fail("A successful assertion wrongfully threw.");
     61   }
     62 
     63   // A failed assertion should throw a subclass of std::runtime_error.
     64   try {
     65     EXPECT_EQ(2, 3) << "Expected failure";
     66   } catch(const std::runtime_error& e) {
     67     if (strstr(e.what(), "Expected failure") != NULL)
     68       return;
     69 
     70     printf("%s",
     71            "A failed assertion did throw an exception of the right type, "
     72            "but the message is incorrect.  Instead of containing \"Expected "
     73            "failure\", it is:\n");
     74     Fail(e.what());
     75   } catch(...) {
     76     Fail("A failed assertion threw the wrong type of exception.");
     77   }
     78   Fail("A failed assertion should've thrown but didn't.");
     79 }
     80 
     81 int main(int argc, char** argv) {
     82   testing::InitGoogleTest(&argc, argv);
     83 
     84   // We want to ensure that people can use Google Test assertions in
     85   // other testing frameworks, as long as they initialize Google Test
     86   // properly and set the thrown-on-failure mode.  Therefore, we don't
     87   // use Google Test's constructs for defining and running tests
     88   // (e.g. TEST and RUN_ALL_TESTS) here.
     89 
     90   TestFailureThrowsRuntimeError();
     91   return 0;
     92 }
     93