WarningData describes the state of the warning message that is displayed
if a test is using time by is not advancing the TestClock. The possible
states are Start if a test has not used time, Pending if a test has
used time but has not adjusted the TestClock, and Done if a test has
adjusted the TestClock or the warning message has already been displayed.
WarningDatadescribes the state of the warning message that is displayed if a test is using time by is not advancing theTestClock. The possible states areStartif a test has not used time,Pendingif a test has used time but has not adjusted theTestClock, andDoneif a test has adjusted theTestClockor the warning message has already been displayed.