OpenVINO IR tests cover the next frontend functionality: parser IRs, read model from the memory, and extensions support.
CMake target ov_ir_frontend_tests is responsible for building IR tests. IR Frontend tests use the gtest framework for tests execution.
After the build, ov_ir_frontend_tests (ov_ir_frontend_tests.exe for Windows) binary files can be used to run all tests for the IR frontend.
To get a tests coverage report for the IR frontend, read the page on measuring coverage.