exceptions thrown when running app with failed unittests

[Ervin Bosenbacher via Digitalmars-d-learn]

On Sunday, 19 March 2017 at 22:20:58 UTC, cym13 wrote:
> On Sunday, 19 March 2017 at 22:13:21 UTC, Ervin Bosenbacher 
> wrote:
>> Its my 2nd day into D, I am already in deep love (:D),  and I 
>> would like to understand whether this is normal behavior or 
>> something went terribly wrong, so all help is greatly 
>> appreciated.
>>
>> [...]
>
> Well, unittests can pass or fail and as the exception states 
> there it failed. Binary search returns true if it found the 
> element in the array, false otherwise. 5 is not an element of 
> [1, 3, 6, 7, 9, 15] so binarySearch returned false. Assert 
> throws an error if its argument is false to it threw. Nothing 
> out of the ordinary except maybe a broken test.

Thank you :) Maybe I need to rephrase. Is it normal to see the 
long trace output instead of just a failed unit test message?