[BUG]GStreamer unit tests with Segmentation Fault

[shotamishima]

Logging

Unexpected critical/warning: gst_pad_get_peer: assertion 'GST_IS_PAD (pad)' failed

Stack trace:
0   libgstreamer-1.0.0.dylib            0x0000000102f3db8c gst_debug_get_stack_trace + 52
1   libgstcheck-1.0.0.dylib             0x0000000102c26d3c gst_check_log_critical_func + 144
2   libglib-2.0.0.dylib                 0x0000000103063dd0 g_logv + 828
3   libglib-2.0.0.dylib                 0x0000000103063a24 g_log + 28
4   libglib-2.0.0.dylib                 0x0000000103063814 g_return_if_fail_warning + 32
5   libgstreamer-1.0.0.dylib            0x0000000102f4cc8c gst_pad_get_peer + 128
6   libgstcheck-1.0.0.dylib             0x0000000102c27448 gst_check_teardown_pad_by_name + 24
7   gstkvsplugintest                    0x0000000102b71a2c _ZL23kvsproducersinkteststopi + 172
8   libgstcheck-1.0.0.dylib             0x0000000102c32eb0 srunner_run_tagged + 1780
9   libgstcheck-1.0.0.dylib             0x0000000102c287e0 gst_check_run_suite + 116
10  gstkvsplugintest                    0x0000000102b72e8c main + 56
11  dyld                                0x00000001950d0274 start + 2840



Unexpected critical/warning: gst_pad_get_peer: assertion 'GST_IS_PAD (pad)' failed

Stack trace:
0   libgstreamer-1.0.0.dylib            0x0000000102f3db8c gst_debug_get_stack_trace + 52
1   libgstcheck-1.0.0.dylib             0x0000000102c26d3c gst_check_log_critical_func + 144
2   libglib-2.0.0.dylib                 0x0000000103063dd0 g_logv + 828
3   libglib-2.0.0.dylib                 0x0000000103063a24 g_log + 28
4   libglib-2.0.0.dylib                 0x0000000103063814 g_return_if_fail_warning + 32
5   libgstreamer-1.0.0.dylib            0x0000000102f4cc8c gst_pad_get_peer + 128
6   libgstcheck-1.0.0.dylib             0x0000000102c27448 gst_check_teardown_pad_by_name + 24
7   gstkvsplugintest                    0x0000000102b723ac _ZL37check_properties_are_passed_correctlyi + 2168
8   libgstcheck-1.0.0.dylib             0x0000000102c32eb0 srunner_run_tagged + 1780
9   libgstcheck-1.0.0.dylib             0x0000000102c287e0 gst_check_run_suite + 116
10  gstkvsplugintest                    0x0000000102b72e8c main + 56
11  dyld                                0x00000001950d0274 start + 2840

0%: Checks: 6, Failures: 4, Errors: 2
../subprojects/gstreamer/libs/gst/check/gstcheck.c:520:E:AllStateChangeTests:kvsproducersinktestplay:0: (after this point) Received signal 11 (Segmentation fault: 11)
../subprojects/gstreamer/libs/gst/check/gstcheck.c:520:E:AllStateChangeTests:kvsproducersinktestpause:0: (after this point) Received signal 11 (Segmentation fault: 11)
../subprojects/gstreamer/libs/gst/check/gstcheck.c:648:F:AllStateChangeTests:kvsproducersinktestplaytopausetoplay:0: Could not get sink pad from kvssink
../subprojects/gstreamer/libs/gst/check/gstcheck.c:286:F:AllStateChangeTests:kvsproducersinkteststop:0: Unexpected critical/warning: gst_pad_get_peer: assertion 'GST_IS_PAD (pad)' failed
../subprojects/gstreamer/libs/gst/check/gstcheck.c:286:F:AllStateChangeTests:check_properties_are_passed_correctly:0: Unexpected critical/warning: gst_pad_get_peer: assertion 'GST_IS_PAD (pad)' failed
../subprojects/gstreamer/libs/gst/check/gstcheck.c:648:F:AllStateChangeTests:check_playing_to_paused_and_back_to_playing:0: Could not get sink pad from kvssink

Describe the bug
On master branch, I tried to run unit tests for kvssink after a build but the above error logs showed up. The environment I use is M3 MacOS Sequoia. Thank you for your support.

To Reproduce
Steps to reproduce the behavior:

1. Build the project by cmake -DBUILD_GSTREAMER_PLUGIN=TRUE -DBUILD_TEST=TRUE .. on ./build directory
2. Set AWS credentials for environment variables
3. Execute ./tst/gstkvsplugintest
4. See error

Expected behavior
The all of test cases should pass since I don't touch anything from master branch.

SDK version number
v3.4.2

Platform (please complete the following information):

• OS: macOS Sequoia 15.2
• Processor: Apple Sillicon M3 pro

[sirknightj]

Hi @shotamishima, thanks for the report.

I was able to reproduce this on my mac locally. It seems to be just an issue with the unit tests. The CI which runs kvssink in an actual Gstreamer pipeline is working as expected.

We'll be looking into enhancing the test suite at a future date. Is this currently blocking your development?

[shotamishima]

Thanks @sirknightj for taking care of it. It's not a blocker to me for now.