[Cuis-dev] BaseImageTests for 5302

[ken.dickey at whidbey.com]

Juan,

Running the code for (e.g.) 
TestValueWithinFix>>testValueWithinTimingBasic
works fine (expected value check does not trigger assert) in a Workspace 
-- every time.  This is also OK when running the test in a code Browser.

Running the code in the SUnit Test Runner fails every time (on my slow 
riscv).

The essential difference is that the SUnit Test Runner backgrounds the 
tests.

Perhaps change tests to run block atomically with 
#grabProcessorFor:onTimeout: ?

-KenD