Those testvectors are still valid (and passing them still shows compliance), but new test vectors, provided with RFC 8251, now allow some decoder improvements while maintaining full compatibility. These new testvectors are also available from the IETF.
On POSIX environments, the run_vectors.sh script can be used to verify all test vectors. This can be done with
run_vectors.sh <exec path> <vector path> <rate>
exec path is the directory where the opus_demo and
opus_compare executables are built,
vector path is the directory
containing the test vectors, and
rate is the sampling rate to test
(8000, 12000, 16000, 24000, or 48000).