| Test that CryptoKey.usages preserves custom properties. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| Generating a HMAC key with default length... | |
| PASS key.usages === key.usages is true | |
| PASS key.usages.foo is "bar" | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |