Line read in a loop from a file doesn't assign properly in batch program

Question

I am reading each line of a .txt file in a .batch program using For /f loop. The .txt file contains all the names of the test cases (e.g. ShipmentPostErrorPathXPERF.txt) which I need to read and assign to a variable called testCaseName and pass this to another .cmd program as a parameter and continue in loop until it reads all lines (test cases),

Here is my sample batch file, my problem is when I assign testCaseName=%%A, it only shows assigned to the last line of the file (REST0007-SHIPMETDATA_POST-XPERF_ErrorPath-ShipmentNULLServiceSchedID_TestCase). But when I use echo %%A, it shows all lines as it reads in loop.

Why set testCaseName=%%A in the batch file only reading the last line ?

.batch file:

echo off
cd d:\SWAT
set fileNameXPERF=d:\SWAT\ShipmentPostErrorPathXPERF.txt
for /F "tokens=*" %%A in (D:\SWAT\ShipmentPostErrorPathXPERFxxx.txt) do (
set testCaseName=%%A
echo %testCaseName%
echo %%A
call d:\SWAT\testRunner.cmd %testCaseName%
)

The text file (ShipmentPostErrorPathXPERF.txt):

REST0007-SHIPMETDATA_POST-XPERF_ErrorPath-ShipmentEmptyDockNum_TestCase
REST0007-SHIPMETDATA_POST-XPERF_ErrorPath-ShipmentNULLDockNum_TestCase
REST0007-SHIPMETDATA_POST-XPERF_ErrorPath-ShipmentInvalidDockNum_TestCase
REST0007-SHIPMETDATA_POST-XPERF_ErrorPath-ShipmentEmptyServiceSchedID_TestCase
REST0007-SHIPMETDATA_POST-XPERF_ErrorPath-ShipmentNULLServiceSchedID_TestCase

Hello jeb, my question is not duplicate to 'Variables in batch not behaving as expected'. Can you please let my question be published ? — Jamil Rahman, Jun 18 '18 at 04:37
Have you even bothered to go through the duplicate question and its answer?? — aschipfl, Jun 18 '18 at 07:57
Sadly, yes. The posting you guys are referring as 'duplicate' doesn't have my answer, that is why I am bothered. — Jamil Rahman, Jun 18 '18 at 16:13

Line read in a loop from a file doesn't assign properly in batch program

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