what is test code for the following export class Puzzle $\{$

static configurations: string$[][][]=[$

$[$

$["$in$",$ "vis", $"$i$",$ "ble"$],$

$["$im$",$ "mac", $"$u$",$ "late"$],$

$["$af$",$ "fil", $"$i$",$ "ate"$],$

$["$un$",$ "der", $"$wa$",$ "ter"$]$

$],$

$[$

$["$ex$","$am$","$in$",$ "ing"$],$

$["$re$","$in$",$ "force", "ment"$],$

$["$in$",$ "for", $"$ma$",$ "tive"$],$

$["$ma$","$te$","$ri$","$al$"]$

$],$

$[$

$["$me$",$ "chan", $"$i$",$ "cal"$],$

$["$cal$","$cu$",$ "lat", "ing"$],$

$["$im$","$me$","$di$",$ "ate"$],$

$["$di$","$ag$","$on$","$al$"]$

$]$

$]$;

$\}$