Algorithm information is available from the Cryptographic Toolkit page.
The algorithm validation testing requirements for FIPS 198-1 are specified in:
The Keyed-Hash Message Authentication Code (HMAC) Validation System (HMACVS).
Testing Notes
Use of these test vectors does not replace validation obtained through the CAVP.
The test vectors linked below can be used to informally verify the correctness of a HMAC algorithm listed above.
Security and Privacy: assurance, cryptography, testing & validation