- GstCheck — Common code for GStreamer unit tests
- GstBufferStraw — Buffer interception code for GStreamer unit tests
- GstStreamConsistencyChecker — Data flow consistency checker for GStreamer unit tests.
- GstHarness — A test-harness for writing GStreamer unit tests
- GstTestClock — Controllable, deterministic clock for GStreamer unit tests
libgstcheck-1.0.so provides functionality for writing unit tests that use the check framework.