I am new to Google Test Framework and trying to learn it. I tried a simple example and it all worked.
But when I tested my OpneCV program (without using opencv functions at the moment, only added header files) with gtest, it gave me segfault. for example
#include<iostream> #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> //for gtest API #include "gtest/gtest.h" ///for google test framework int main( int argc, char** argv ) { testing::InitGoogleTest(&argc, argv); return RUN_ALL_TESTS(); } TEST(Test, EqualityCheck) { ASSERT_EQ(1,1)<<"Test Passed"; }
if you compile it without an openCV link, then everything worked fine
g++ -o out cv_gtest.cpp -I/usr/local/include -I./inc /usr/local/lib/libgtest.a
but if compiled using the opencv link, we get a seg fault at runtime
g++ -o out cv_gtest.cpp -I/usr/local/include -I./inc /usr/local/lib/libgtest.a `pkg-config opencv --cflags --libs`
output:
[==========] Running 1 test from 1 test case. [----------] Global test environment set-up. [----------] 1 test from ImageTest [ RUN ] Test.EqualityCheck [ OK ] Test.EqualityCheck (0 ms) [----------] 1 test from Test (0 ms total) [----------] Global test environment tear-down [==========] 1 test from 1 test case ran. (0 ms total) [ PASSED ] 1 test. Segmentation fault (core dumped) After debugging with valgrind (partial output) ==8284== Invalid read of size 4 ==8284== at 0x34C049D4B6: std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string() (in /usr/lib64/libstdc++.so.6.0.13) ==8284== by 0x4394DD: void std::_Destroy<std::string>(std::string*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x4388A3: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x436D92: void std::_Destroy<std::string*>(std::string*, std::string*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x433D98: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x42E879: std::vector<std::string, std::allocator<std::string> >::~vector() (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x34B943613C: __cxa_finalize (in /lib64/libc-2.12.so) ==8284== by 0x7613545: ??? (in /usr/local/lib/libopencv_ts.so.2.4.5) ==8284== by 0x767D1B0: ??? (in /usr/local/lib/libopencv_ts.so.2.4.5) ==8284== by 0x34B9435DA1: exit (in /lib64/libc-2.12.so) ==8284== by 0x34B941ECE3: (below main) (in /lib64/libc-2.12.so) ==8284== Address 0x7d99e98 is 8 bytes before a block of size 11 free'd ==8284== at 0x4A05B26: operator delete[](void*) (vg_replace_malloc.c:515) ==8284== by 0x425A0E: testing::internal::String::~String() (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x43A326: void std::_Destroy<testing::internal::String>(testing::internal::String*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x439CCA: void std::_Destroy_aux<false>::__destroy<testing::internal::String*>(testing::internal::String*, testing::internal::String*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x4392F1: void std::_Destroy<testing::internal::String*>(testing::internal::String*, testing::internal::String*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x438470: void std::_Destroy<testing::internal::String*, testing::internal::String>(testing::internal::String*, testing::internal::String*, std::allocator<testing::internal::String>&) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x43AED3: std::vector<testing::internal::String, std::allocator<testing::internal::String> >::~vector() (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x34B9435DA1: exit (in /lib64/libc-2.12.so) ==8284== by 0x34B941ECE3: (below main) (in /lib64/libc-2.12.so) ==8284== ==8284== Invalid free() / delete / delete[] / realloc() ==8284== at 0x4A05FD6: operator delete(void*) (vg_replace_malloc.c:480) ==8284== by 0x34C049D4C8: std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string() (in /usr/lib64/libstdc++.so.6.0.13) ==8284== by 0x4394DD: void std::_Destroy<std::string>(std::string*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x4388A3: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x436D92: void std::_Destroy<std::string*>(std::string*, std::string*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x433D98: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x42E879: std::vector<std::string, std::allocator<std::string> >::~vector() (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x34B943613C: __cxa_finalize (in /lib64/libc-2.12.so) ==8284== by 0x7613545: ??? (in /usr/local/lib/libopencv_ts.so.2.4.5) ==8284== by 0x767D1B0: ??? (in /usr/local/lib/libopencv_ts.so.2.4.5) ==8284== by 0x34B9435DA1: exit (in /lib64/libc-2.12.so) ==8284== by 0x34B941ECE3: (below main) (in /lib64/libc-2.12.so) ==8284== Address 0x7d99e88 is 24 bytes before a block of size 11 free'd ==8284== at 0x4A05B26: operator delete[](void*) (vg_replace_malloc.c:515) ==8284== by 0x425A0E: testing::internal::String::~String() (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x43A326: void std::_Destroy<testing::internal::String>(testing::internal::String*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x439CCA: void std::_Destroy_aux<false>::__destroy<testing::internal::String*>(testing::internal::String*, testing::internal::String*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x4392F1: void std::_Destroy<testing::internal::String*>(testing::internal::String*, testing::internal::String*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x438470: void std::_Destroy<testing::internal::String*, testing::internal::String>(testing::internal::String*, testing::internal::String*, std::allocator<testing::internal::String>&) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x43AED3: std::vector<testing::internal::String, std::allocator<testing::internal::String> >::~vector() (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x34B9435DA1: exit (in /lib64/libc-2.12.so) ==8284== by 0x34B941ECE3: (below main) (in /lib64/libc-2.12.so) ==8284== ==8284== ==8284== Process terminating with default action of signal 11 (SIGSEGV) ==8284== Access not within mapped region at address 0x2 ==8284== at 0x34C049D4B6: std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string() (in /usr/lib64/libstdc++.so.6.0.13) ==8284== by 0x4394DD: void std::_Destroy<std::string>(std::string*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x4388A3: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x436D92: void std::_Destroy<std::string*>(std::string*, std::string*) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x433D98: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x42E879: std::vector<std::string, std::allocator<std::string> >::~vector() (in /home/sairam/Desktop/sagar/CV_GTEST/colormap) ==8284== by 0x34B943613C: __cxa_finalize (in /lib64/libc-2.12.so) ==8284== by 0x7613545: ??? (in /usr/local/lib/libopencv_ts.so.2.4.5) ==8284== by 0x767D1B0: ??? (in /usr/local/lib/libopencv_ts.so.2.4.5) ==8284== by 0x34B9435DA1: exit (in /lib64/libc-2.12.so) ==8284== by 0x34B941ECE3: (below main) (in /lib64/libc-2.12.so) ==8284== If you believe this happened as a result of a stack ==8284== overflow in your program main thread (unlikely but ==8284== possible), you can try to increase the size of the ==8284== main thread stack using the --main-stacksize= flag. ==8284== The main thread stack size used in this run was 10485760. ==8284== ==8284== HEAP SUMMARY: ==8284== in use at exit: 2,283,560 bytes in 183 blocks ==8284== total heap usage: 742 allocs, 560 frees, 3,695,829 bytes allocated ==8284== ==8284== LEAK SUMMARY: ==8284== definitely lost: 750,084 bytes in 4 blocks ==8284== indirectly lost: 0 bytes in 0 blocks ==8284== possibly lost: 1,503,662 bytes in 73 blocks ==8284== still reachable: 29,814 bytes in 106 blocks ==8284== suppressed: 0 bytes in 0 blocks ==8284== Rerun with --leak-check=full to see details of leaked memory ==8284== ==8284== For counts of detected and suppressed errors, rerun with: -v