Hi All,
I've found some unusual behavior when I use a loop controller inside a for
each controller. I think it may be a bug, but hopefully someone can explain
why it's happening:
I can demonstrate it by using the following test plan:
thread group
-User defined variables
-ForEach Controller
-Debug Sampler 1
-Loop Controller
-Debug Sampler 2
View Results Tree
User defined variables element contains the following values:
val_1 1
val_2 2
val_3 0
val_4 0
val_5 3
val_6 0
val_7 7
val_8 8
The basic objective of the test plan is: "for each `val`, loop that number of
times"
ForEach Controller is configured:
Input Variable Prefix: val
Output Variable Name: this.val
Add '_' before number: yes
Loop Controller is configured:
Loop Count: ${this.val}
Forever: No
I expected this to produce the following sequence in the View Results tree:
Debug Sampler 1
Debug Sampler 2
Debug Sampler 1
Debug Sampler 2
Debug Sampler 2
Debug Sampler 1
Debug Sampler 1
Debug Sampler 1
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 1
Debug Sampler 1
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 1
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
Debug Sampler 2
but instead is produced the following results:
Debug Sampler 1
Debug Sampler 2
Debug Sampler 1
Debug Sampler 2
Debug Sampler 2
Debug Sampler 1
Debug Sampler 2
Debug Sampler 1
Debug Sampler 1
Debug Sampler 1
Debug Sampler 1
Debug Sampler 1
It's really weird, because in the first case where the loop controller will be
0 (third iteration, val_3=0), Debug Sampler 2 is executed once, but it lists
`this.val=0`, which is the correct value, but since it's 0, the loop
controller should not have been entered at all, right? It seems too that once
a loop controller has been executed with a value of 0, any subsequent
iterations of the foreach controller which should enter the loop controller
(i.e. iterations 5, 7, and 8 of the foreach) do not enter it.
Thoughts?
Regards,
Noel
