ngspice/tests/regression/sens/sens-ac-2.cir

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* test "sens ac"
v1 1 0 dc=1.27 ac=42mA
r1 1 2 68.0
c2 2 0 1.5n
l3 2 3 12u
c4 3 0 1.8n
r5 3 0 100.0
.control
* express our "golden" expectations:
setplot new
set gold = $curplot
let s = (0,2) * pi * 1e6
let v1_acmag = ( 0.1258214312760609, -0.5915026769337883 )
let r1 = ( -38.77993150952251u, 196.2381768346785u )
let c2 = ( -4912987.937722201, -1131146.799006112 )
let l3 = ( -1670.021661737812, -453.4103177577211 )
let c4 = ( -7419488.478291172, -1226939.0306441 )
let r5 = ( 1.952734115993878E-5, -1.180848266533405E-4 )
* run a "sens" analysis
sens v(3) ac lin 1 1e6 1.1e6
strcmp __flag $curplot $gold
if $__flag = 0
echo "ERROR: sens failed to execute"
quit 1
end
* compare results with "golden" expectation
define mismatch(a,b,err) abs(a-b)>err*abs(b)
let total_count = 0
let fail_count = 0
foreach n v1_acmag r1 c2 l3 c4 r5
set n_test = "$n"
set n_gold = "{$gold}.$n"
if mismatch($n_test, $n_gold, 1e-3)
let s_test = $n_test
let s_gold = $n_gold
echo "ERROR, test failure, s[$n] = $&s_test but should be $&s_gold"
let fail_count = fail_count + 1
end
let total_count = total_count + 1
end
if fail_count > 0
echo "ERROR: $&fail_count of $&total_count tests failed"
quit 1
else
echo "INFO: $&fail_count of $&total_count tests failed"
quit 0
end
.endc
.end