Bench testing a '69 440 ignition coil?

I need to bench test a '69 440 (GTX) ignition coil using a battery, adjustable spark tester (image below) attached to coil high tension lead and grounded to engine block, and some jumper wires.....can it be done this way. Just need to find out if the coil will produce a spark.

Do I just connect the coil (+) and (-) to the battery (+) and (-) then break (remove) the ground or do I need a switch do discard the coil or ????? I've tried several different ways and still no spark so I've either done it right by accident and have a bad coil or doing it all wrong. Or it can't be done this way at all and I'm an idiot.......ok so some of you will agree with that last part regardless Thanks in advance.

Mike

Should work, but may not work without a condenser on the trigger (ground) circuit. Make sure to ground the spark tester.

In the past when I tried that it worked but got a really small spark. The condensor extends the spark duration.

ohm meter --- test it... 1.5 primary [set to 200 ohms for test] secondary around 11 set to 20 ohms for test .......