Test that HKDF does not support methods it should not support. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". Derive 0 bits from the HKDF key PASS derivedBits.byteLength is 0 Derive 8 bits from the HKDF key PASS derivedBits.byteLength is 1 PASS derivedBits.getUint8(0) is 141 PASS successfullyParsed is true TEST COMPLETE