1 files changed, 0 insertions, 368 deletions
diff --git a/src/test/scala/chiselTests/ChiselSpec.scala b/src/test/scala/chiselTests/ChiselSpec.scala
deleted file mode 100644
index e00afcf6..00000000
--- a/src/test/scala/chiselTests/ChiselSpec.scala
+++ /dev/null
@@ -1,368 +0,0 @@
-// SPDX-License-Identifier: Apache-2.0
-
-package chiselTests
-
-import chisel3._
-import chisel3.aop.Aspect
-import chisel3.stage.{
-  ChiselGeneratorAnnotation,
-  ChiselStage,
-  NoRunFirrtlCompilerAnnotation,
-  PrintFullStackTraceAnnotation
-}
-import chisel3.testers._
-import firrtl.annotations.Annotation
-import firrtl.ir.Circuit
-import firrtl.util.BackendCompilationUtilities
-import firrtl.{AnnotationSeq, EmittedVerilogCircuitAnnotation}
-import _root_.logger.Logger
-import firrtl.stage.FirrtlCircuitAnnotation
-import org.scalacheck._
-import org.scalatest._
-import org.scalatest.flatspec.AnyFlatSpec
-import org.scalatest.freespec.AnyFreeSpec
-import org.scalatest.funspec.AnyFunSpec
-import org.scalatest.propspec.AnyPropSpec
-import org.scalatest.matchers.should.Matchers
-import org.scalatestplus.scalacheck.ScalaCheckPropertyChecks
-
-import java.io.{ByteArrayOutputStream, PrintStream}
-import java.security.Permission
-import scala.reflect.ClassTag
-
-/** Common utility functions for Chisel unit tests. */
-trait ChiselRunners extends Assertions with BackendCompilationUtilities {
-  def runTester(
-    t:                    => BasicTester,
-    additionalVResources: Seq[String] = Seq(),
-    annotations:          AnnotationSeq = Seq()
-  ): Boolean = {
-    // Change this to enable Treadle as a backend
-    val defaultBackend = {
-      val useTreadle = sys.env.get("CHISEL3_CI_USE_TREADLE").isDefined
-      if (useTreadle) chisel3.testers.TreadleBackend else chisel3.testers.TesterDriver.defaultBackend
-    }
-    val hasBackend = TestUtils.containsBackend(annotations)
-    val annos: Seq[Annotation] = if (hasBackend) annotations else defaultBackend +: annotations
-    TesterDriver.execute(() => t, additionalVResources, annos)
-  }
-  def assertTesterPasses(
-    t:                    => BasicTester,
-    additionalVResources: Seq[String] = Seq(),
-    annotations:          AnnotationSeq = Seq()
-  ): Unit = {
-    assert(runTester(t, additionalVResources, annotations))
-  }
-  def assertTesterFails(
-    t:                    => BasicTester,
-    additionalVResources: Seq[String] = Seq(),
-    annotations:          Seq[chisel3.aop.Aspect[_]] = Seq()
-  ): Unit = {
-    assert(!runTester(t, additionalVResources, annotations))
-  }
-
-  def assertKnownWidth(expected: Int)(gen: => Data): Unit = {
-    assertTesterPasses(new BasicTester {
-      val x = gen
-      assert(x.getWidth === expected)
-      // Sanity check that firrtl doesn't change the width
-      x := 0.U.asTypeOf(chiselTypeOf(x))
-      val (_, done) = chisel3.util.Counter(true.B, 2)
-      when(done) {
-        chisel3.assert(~(x.asUInt) === -1.S(expected.W).asUInt)
-        stop()
-      }
-    })
-  }
-
-  def assertInferredWidth(expected: Int)(gen: => Data): Unit = {
-    assertTesterPasses(new BasicTester {
-      val x = gen
-      assert(!x.isWidthKnown, s"Asserting that width should be inferred yet width is known to Chisel!")
-      x := 0.U.asTypeOf(chiselTypeOf(x))
-      val (_, done) = chisel3.util.Counter(true.B, 2)
-      when(done) {
-        chisel3.assert(~(x.asUInt) === -1.S(expected.W).asUInt)
-        stop()
-      }
-    })
-  }
-
-  /** Compiles a Chisel Module to Verilog
-    * NOTE: This uses the "test_run_dir" as the default directory for generated code.
-    * @param t the generator for the module
-    * @return the Verilog code as a string.
-    */
-  def compile(t: => RawModule): String = {
-    (new ChiselStage)
-      .execute(
-        Array("--target-dir", createTestDirectory(this.getClass.getSimpleName).toString),
-        Seq(ChiselGeneratorAnnotation(() => t))
-      )
-      .collectFirst {
-        case EmittedVerilogCircuitAnnotation(a) => a.value
-      }
-      .getOrElse(fail("No Verilog circuit was emitted by the FIRRTL compiler!"))
-  }
-
-  def elaborateAndGetModule[A <: RawModule](t: => A): A = {
-    var res: Any = null
-    ChiselStage.elaborate {
-      res = t
-      res.asInstanceOf[A]
-    }
-    res.asInstanceOf[A]
-  }
-
-  /** Compiles a Chisel Module to FIRRTL
-    * NOTE: This uses the "test_run_dir" as the default directory for generated code.
-    * @param t the generator for the module
-    * @return The FIRRTL Circuit and Annotations _before_ FIRRTL compilation
-    */
-  def getFirrtlAndAnnos(t: => RawModule, providedAnnotations: Seq[Annotation] = Nil): (Circuit, Seq[Annotation]) = {
-    val args = Array(
-      "--target-dir",
-      createTestDirectory(this.getClass.getSimpleName).toString,
-      "--no-run-firrtl",
-      "--full-stacktrace"
-    )
-    val annos = (new ChiselStage).execute(args, Seq(ChiselGeneratorAnnotation(() => t)) ++ providedAnnotations)
-    val circuit = annos.collectFirst {
-      case FirrtlCircuitAnnotation(c) => c
-    }.getOrElse(fail("No FIRRTL Circuit found!!"))
-    (circuit, annos)
-  }
-}
-
-/** Spec base class for BDD-style testers. */
-abstract class ChiselFlatSpec extends AnyFlatSpec with ChiselRunners with Matchers
-
-/** Spec base class for BDD-style testers. */
-abstract class ChiselFreeSpec extends AnyFreeSpec with ChiselRunners with Matchers
-
-/** Spec base class for BDD-style testers. */
-abstract class ChiselFunSpec extends AnyFunSpec with ChiselRunners with Matchers
-
-/** Spec base class for property-based testers. */
-abstract class ChiselPropSpec extends AnyPropSpec with ChiselRunners with ScalaCheckPropertyChecks with Matchers {
-
-  // Constrain the default number of instances generated for every use of forAll.
-  implicit override val generatorDrivenConfig: PropertyCheckConfiguration =
-    PropertyCheckConfiguration(minSuccessful = 8, minSize = 1, sizeRange = 3)
-
-  // Generator for small positive integers.
-  val smallPosInts = Gen.choose(1, 4)
-
-  // Generator for positive (ascending or descending) ranges.
-  def posRange: Gen[Range] = for {
-    dir <- Gen.oneOf(true, false)
-    step <- Gen.choose(1, 3)
-    m <- Gen.choose(1, 10)
-    n <- Gen.choose(1, 10)
-  } yield {
-    if (dir) {
-      Range(m, (m + n) * step, step)
-    } else {
-      Range((m + n) * step, m, -step)
-    }
-  }
-
-  // Generator for widths considered "safe".
-  val safeUIntWidth = Gen.choose(1, 30)
-
-  // Generators for integers that fit within "safe" widths.
-  val safeUInts = Gen.choose(0, (1 << 30))
-
-  // Generators for vector sizes.
-  val vecSizes = Gen.choose(0, 4)
-
-  // Generator for string representing an arbitrary integer.
-  val binaryString = for (i <- Arbitrary.arbitrary[Int]) yield "b" + i.toBinaryString
-
-  // Generator for a sequence of Booleans of size n.
-  def enSequence(n: Int): Gen[List[Boolean]] = Gen.containerOfN[List, Boolean](n, Gen.oneOf(true, false))
-
-  // Generator which gives a width w and a list (of size n) of numbers up to w bits.
-  def safeUIntN(n: Int): Gen[(Int, List[Int])] = for {
-    w <- smallPosInts
-    i <- Gen.containerOfN[List, Int](n, Gen.choose(0, (1 << w) - 1))
-  } yield (w, i)
-
-  // Generator which gives a width w and a numbers up to w bits.
-  val safeUInt = for {
-    w <- smallPosInts
-    i <- Gen.choose(0, (1 << w) - 1)
-  } yield (w, i)
-
-  // Generator which gives a width w and a list (of size n) of a pair of numbers up to w bits.
-  def safeUIntPairN(n: Int): Gen[(Int, List[(Int, Int)])] = for {
-    w <- smallPosInts
-    i <- Gen.containerOfN[List, Int](n, Gen.choose(0, (1 << w) - 1))
-    j <- Gen.containerOfN[List, Int](n, Gen.choose(0, (1 << w) - 1))
-  } yield (w, i.zip(j))
-
-  // Generator which gives a width w and a pair of numbers up to w bits.
-  val safeUIntPair = for {
-    w <- smallPosInts
-    i <- Gen.choose(0, (1 << w) - 1)
-    j <- Gen.choose(0, (1 << w) - 1)
-  } yield (w, i, j)
-}
-
-trait Utils {
-
-  /** Run some Scala thunk and return STDOUT and STDERR as strings.
-    * @param thunk some Scala code
-    * @return a tuple containing STDOUT, STDERR, and what the thunk returns
-    */
-  def grabStdOutErr[T](thunk: => T): (String, String, T) = {
-    val stdout, stderr = new ByteArrayOutputStream()
-    val ret = scala.Console.withOut(stdout) { scala.Console.withErr(stderr) { thunk } }
-    (stdout.toString, stderr.toString, ret)
-  }
-
-  /** Run some Scala thunk and return all logged messages as Strings
-    * @param thunk some Scala code
-    * @return a tuple containing LOGGED, and what the thunk returns
-    */
-  def grabLog[T](thunk: => T): (String, T) = {
-    val baos = new ByteArrayOutputStream()
-    val stream = new PrintStream(baos, true, "utf-8")
-    val ret = Logger.makeScope(Nil) {
-      Logger.setOutput(stream)
-      thunk
-    }
-    (baos.toString, ret)
-  }
-
-  /** Encodes a System.exit exit code
-    * @param status the exit code
-    */
-  private case class ExitException(status: Int) extends SecurityException(s"Found a sys.exit with code $status")
-
-  /** A security manager that converts calls to System.exit into [[ExitException]]s by explicitly disabling the ability of
-    * a thread to actually exit. For more information, see:
-    *   - https://docs.oracle.com/javase/tutorial/essential/environment/security.html
-    */
-  private class ExceptOnExit extends SecurityManager {
-    override def checkPermission(perm: Permission): Unit = {}
-    override def checkPermission(perm: Permission, context: Object): Unit = {}
-    override def checkExit(status: Int): Unit = {
-      super.checkExit(status)
-      throw ExitException(status)
-    }
-  }
-
-  /** Encodes a file that some code tries to write to
-    * @param the file name
-    */
-  private case class WriteException(file: String) extends SecurityException(s"Tried to write to file $file")
-
-  /** A security manager that converts writes to any file into [[WriteException]]s.
-    */
-  private class ExceptOnWrite extends SecurityManager {
-    override def checkPermission(perm: Permission): Unit = {}
-    override def checkPermission(perm: Permission, context: Object): Unit = {}
-    override def checkWrite(file: String): Unit = {
-      super.checkWrite(file)
-      throw WriteException(file)
-    }
-  }
-
-  /** Run some Scala code (a thunk) in an environment where all System.exit are caught and returned. This avoids a
-    * situation where a test results in something actually exiting and killing the entire test. This is necessary if you
-    * want to test a command line program, e.g., the `main` method of [[firrtl.options.Stage Stage]].
-    *
-    * NOTE: THIS WILL NOT WORK IN SITUATIONS WHERE THE THUNK IS CATCHING ALL [[Exception]]s OR [[Throwable]]s, E.G.,
-    * SCOPT. IF THIS IS HAPPENING THIS WILL NOT WORK. REPEAT THIS WILL NOT WORK.
-    * @param thunk some Scala code
-    * @return either the output of the thunk (`Right[T]`) or an exit code (`Left[Int]`)
-    */
-  def catchStatus[T](thunk: => T): Either[Int, T] = {
-    try {
-      System.setSecurityManager(new ExceptOnExit())
-      Right(thunk)
-    } catch {
-      case ExitException(a) => Left(a)
-    } finally {
-      System.setSecurityManager(null)
-    }
-  }
-
-  /** Run some Scala code (a thunk) in an environment where file writes are caught and the file that a program tries to
-    * write to is returned. This is useful if you want to test that some thunk either tries to write to a specific file
-    * or doesn't try to write at all.
-    */
-  def catchWrites[T](thunk: => T): Either[String, T] = {
-    throw new Exception("Do not use, not thread-safe")
-    try {
-      System.setSecurityManager(new ExceptOnWrite())
-      Right(thunk)
-    } catch {
-      case WriteException(a) => Left(a)
-    } finally {
-      System.setSecurityManager(null)
-    }
-  }
-
-  /** A tester which runs generator and uses an aspect to check the returned object
-    * @param gen function to generate a Chisel module
-    * @param f a function to check the Chisel module
-    * @tparam T the Chisel module class
-    */
-  def aspectTest[T <: RawModule](gen: () => T)(f: T => Unit)(implicit scalaMajorVersion: Int): Unit = {
-    // Runs chisel stage
-    def run[T <: RawModule](gen: () => T, annotations: AnnotationSeq): AnnotationSeq = {
-      new ChiselStage().run(
-        Seq(ChiselGeneratorAnnotation(gen), NoRunFirrtlCompilerAnnotation, PrintFullStackTraceAnnotation) ++ annotations
-      )
-    }
-    // Creates a wrapping aspect to contain checking function
-    case object BuiltAspect extends Aspect[T] {
-      override def toAnnotation(top: T): AnnotationSeq = { f(top); Nil }
-    }
-    val currentMajorVersion = scala.util.Properties.versionNumberString.split('.')(1).toInt
-    if (currentMajorVersion >= scalaMajorVersion) {
-      run(gen, Seq(BuiltAspect))
-    }
-  }
-
-  /** Run some code and rethrow an exception with a specific type if an exception of that type occurs anywhere in the
-    * stack trace.
-    *
-    * This is useful for "extracting" one exception that may be wrapped by other exceptions.
-    *
-    * Example usage:
-    * {{{
-    * a [ChiselException] should be thrownBy extractCause[ChiselException] { /* ... */ }
-    * }}}
-    *
-    * @param thunk some code to run
-    * @tparam A the type of the exception to extract
-    * @return nothing
-    */
-  def extractCause[A <: Throwable: ClassTag](thunk: => Any): Unit = {
-    def unrollCauses(a: Throwable): Seq[Throwable] = a match {
-      case null => Seq.empty
-      case _    => a +: unrollCauses(a.getCause)
-    }
-
-    val exceptions: Seq[_ <: Throwable] =
-      try {
-        thunk
-        Seq.empty
-      } catch {
-        case a: Throwable => unrollCauses(a)
-      }
-
-    exceptions.collectFirst { case a: A => a } match {
-      case Some(a) => throw a
-      case None =>
-        exceptions match {
-          case Nil    => ()
-          case h :: t => throw h
-        }
-    }
-
-  }
-}