Testing Cookbook
How do I change the default testing directory?
Override the buildDir method.
The example below changes the testing directory to test/:
import chisel3._
import chisel3.simulator.scalatest.ChiselSim
import java.nio.file.Paths
import org.scalatest.funspec.AnyFunSpec
class FooSpec extends FunSpec with ChiselSim {
override def buildDir: Path = Paths.get("test")
}
How do I enable waveforms for a simulation?
If using Scalatest and ChiselSim, pass the -DemitVcd=1 argument to Scalatest, e.g.:
./mill 'chisel[2.13.16].test.testOnly' chiselTests.ShiftRegistersSpec -- -DemitVcd=1
How do I see what options a ChiselSim Scalatest test supports?
Pass -Dhelp=1 to Scalatest, e.g.:
./mill 'chisel[2.13.16].test.testOnly' chiselTests.ShiftRegistersSpec -- -Dhelp=1