Use ChiselStage in Tests

This migrates the tests to Chisel 3.4/FIRRTL 1.4. This primarily
involves removing usages of deprecated methods including:

- Remove usages of Driver
- Use ChiselStage methods instead of BackendCompilationUtilities
  methods
- Use Dependency API for custom transforms
- Use extractCause to unpack StackError

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>

1 files changed, 10 insertions, 10 deletions

diff --git a/src/test/scala/chiselTests/TransitNameSpec.scala b/src/test/scala/chiselTests/TransitNameSpec.scala
index b729f244..af45988a 100644
--- a/src/test/scala/chiselTests/TransitNameSpec.scala
+++ b/src/test/scala/chiselTests/TransitNameSpec.scala
@@ -3,6 +3,7 @@ package chiselTests
 
 
 import chisel3._
+import chisel3.stage.{ChiselGeneratorAnnotation, ChiselStage}
 import chisel3.util.TransitName
 
 import firrtl.FirrtlExecutionSuccess
@@ -38,18 +39,17 @@ class TransitNameSpec extends AnyFlatSpec with Matchers {
 
   it should "transit a name" in {
 
-    Driver.execute(Array("-X", "high", "--target-dir", "test_run_dir/TransitNameSpec"), () => new Top) match {
-      case ChiselExecutionSuccess(_,_,Some(FirrtlExecutionSuccess(_,a))) =>
-        info("""output FIRRTL includes "inst MyModule"""")
-        a should include ("inst MyModule of MyModule")
+    val firrtl = (new ChiselStage)
+      .emitFirrtl(new Top, Array("--target-dir", "test_run_dir/TransitNameSpec"))
 
-        info("""output FIRRTL includes "inst bar"""")
-        a should include ("inst bar of MyModule")
+    info("""output FIRRTL includes "inst MyModule"""")
+    firrtl should include ("inst MyModule of MyModule")
 
-        info("""output FIRRTL includes "inst baz_generated"""")
-        a should include ("inst baz_generated of MyModule")
-      case _ => fail
-    }
+    info("""output FIRRTL includes "inst bar"""")
+    firrtl should include ("inst bar of MyModule")
+
+    info("""output FIRRTL includes "inst baz_generated"""")
+    firrtl should include ("inst baz_generated of MyModule")
   }
 
 }