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 // Tests Google Test's throw-on-failure mode with exceptions enabled. 31 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <string.h> 35 36 #include <stdexcept> 37 38 #include "gtest/gtest.h" 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 GTEST_FLAG_SET(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") != nullptr) return; 67 68 printf("%s", 69 "A failed assertion did throw an exception of the right type, " 70 "but the message is incorrect. Instead of containing \"Expected " 71 "failure\", it is:\n"); 72 Fail(e.what()); 73 } catch (...) { 74 Fail("A failed assertion threw the wrong type of exception."); 75 } 76 Fail("A failed assertion should've thrown but didn't."); 77 } 78 79 int main(int argc, char** argv) { 80 testing::InitGoogleTest(&argc, argv); 81 82 // We want to ensure that people can use Google Test assertions in 83 // other testing frameworks, as long as they initialize Google Test 84 // properly and set the thrown-on-failure mode. Therefore, we don't 85 // use Google Test's constructs for defining and running tests 86 // (e.g. TEST and RUN_ALL_TESTS) here. 87 88 TestFailureThrowsRuntimeError(); 89 return 0; 90 } 91