Open Radar

 
Summary:
The documentation of NSProgress fractionCompleted states:

> Setting both totalUnitCount and completedUnitCount properties to zero indicates that there is no progress to track; in this case, the indeterminate property returns NO

Should say ‘returns YES’ as stated in the documentation for indeterminate states:

> Progress is indeterminate when the value of both totalUnitCount and completedUnitCount are zero.

A trial test in code confirms that this should be YES when both counts are zero.

Steps to Reproduce:
Read https://developer.apple.com/documentation/foundation/nsprogress/1408579-fractioncompleted?language=objc

Expected Results:
Should say ‘returns YES’

Actual Results:
Says ‘returns NO’

Version:
Now

Notes:
It would make more sense to me if the progress was indeterminate whenever the totalUnitCount was zero. Currently a progress with a totalUnitCount of zero and a completedUnitCount above zero has a fractionCompleted of 1 and is not indeterminate, which I find surprising.