The unified test format allows drivers to use getParameter: '*' when fetching server parameters for runOnRequirement checks. However, the paragraph does not specify what to do if the server does not allow fetching all parameters.

Ideally, we would document that drivers MUST NOT fail the test because of an error when fetching all parameters, and instead revert to fetching individual parameters for the remainder of the test run. Note that if fetching individual parameters doesn't return the expected data, the spec states that the test in question MUST be skipped. This requirement should not be changed.