You are getting 120 volts to the igniters?
If yes, then check the amperage of the igniters. If you don't have a clamp on amp tester, you will need to cut and strip an igniter wire and place your multimeter inline on the circuit. Make sure it is set up correctly and set to 10Amps.
You should read 3 amps after 40 seconds. Many will turn on at 2.8 though oddly enough (which is why I stick to the universal igniter theory; there are only two types of igniters needed) If you are getting 3.1 amps or above then you know you have good igniters.
Though it sounds like a no-glow situation.
With the extremely cheap price of the GE WB2x998 igniter I would in this situation just swap one to see. If you ave 120v, and a good igniter, then for sure the problem is a bad safety valve or an obstruction in the gas line. I have seen obstructions in the line more than I have seen failed gas valves. (just because so many ovens in our area are flood salvaged)
Also you can't light a gas/electric control stove with a match. That only works on pilot light models. without 3 amos going through the safety valve the gas will never come on.