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Why does SilkTest throw a "stack overflow error"?

Why does SilkTest throw a "stack overflow error"?

In general it has been found that this problem is generated by a recursive loop in the code of the AUT (Application Under Test) or testing code and is not an error within SilkTest. A recursive loop is caused by a piece of code that calls to itself e.g.

int Factorial(int n)
    if (n==1)  
        return 1; 
        return Factorial(n-1) * n; 

In the example above the loop breaks when n=1; the problem that is faced with the stack overflow error is that the recursive loop is not being broken and so either the AUT or SilkTest is entering an infinite loop state. This could be a part of the AUT code itself but there are two known scenarios within SilkTest that can cause the error:

1. A number of SilkTest .inc files are calling to themselves via Path or UsePath commands within each .inc file.

2. You have a method within a tag function that is referencing the parent function.

The stack overflow error message may be generated by Windows or by SilkTest; essentially it means that SilkTest has run out of usable memory.


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