****testcase1 test results:****
f1=1, f2=10, f3=db on con2
f1=2, f2=20, f3=db on con2

****testcase2 test results:****
f1=1, f2=10, f3=db on con1
f1=2, f2=20, f3=db on con1

****testcase3 test results:****
f1=1, f2=10, f3=db on con2
f1=2, f2=20, f3=db on con2

****testcase4 test results:****
f1=1, f2=10, f3=db on con2
f1=2, f2=20, f3=db on con2

****descriptor results****
count: 3, length: 20, data: db on con1