This is a testharness.js-based test.
Found 2 FAIL, 0 TIMEOUT, 0 NOTRUN.
[FAIL] Empty usages: generateKey({length: 192, name: AES-GCM}, false, [])
  assert_equals: Empty usages not supported expected "SyntaxError" but got "OperationError"
[FAIL] Empty usages: generateKey({length: 192, name: AES-GCM}, true, [])
  assert_equals: Empty usages not supported expected "SyntaxError" but got "OperationError"
Harness: the test ran to completion.