False Positives in Testing 

First encountered this concept through a Doctor friend.   Imagine being told you are sick when you actually are not.  Though you might think this is good, you would go about your life thinking your are ill.

False Positives in testing are very similar, especially when you are testing systems that provide vital sevices.

When testing with Robot Framework, or any high-level abstract language, it is very easy to overlook errors and failures because a test returns a value of PASS.  The test may even fail altogether, but because the code is only looking at the Return Codes from the call to the low level function, 

Permit me to explain and I'm sure you'll see what I mean...

1.  example of false pass

2. look at WHY the test returned a PASS and not the correct FAIL

3. How to remedy the situation in this example