Context escape detection.

During creation of each of DottyTests context is stolen from test and a
WeakReference for it is created.
After running all tests references are examined to detect if any of them
has leaked.

1 files changed, 5 insertions, 3 deletions

diff --git a/project/Build.scala b/project/Build.scala
index 8442ce5de..310a7d05e 100644
--- a/project/Build.scala
+++ b/project/Build.scala
@@ -15,7 +15,7 @@ object DottyBuild extends Build {
     resourceDirectory in Compile := baseDirectory.value / "resources",
     unmanagedSourceDirectories in Compile := Seq((scalaSource in Compile).value),
     unmanagedSourceDirectories in Test := Seq((scalaSource in Test).value),
-    
+
     // include sources in eclipse (downloads source code for all dependencies)
     //http://stackoverflow.com/questions/10472840/how-to-attach-sources-to-sbt-managed-dependencies-in-scala-ide#answer-11683728
     com.typesafe.sbteclipse.plugin.EclipsePlugin.EclipseKeys.withSource := true,
@@ -28,17 +28,19 @@ object DottyBuild extends Build {
                                 "org.scala-lang.modules" %% "scala-xml" % "1.0.1"),
 
     // get junit onboard
-    libraryDependencies += "com.novocode" % "junit-interface" % "0.9" % "test",
+    libraryDependencies += "com.novocode" % "junit-interface" % "0.11-RC1" % "test",
 
     // scalac options
     scalacOptions in Global ++= Seq("-feature", "-deprecation", "-language:_"),
 
     // enable verbose exception messages for JUnit
-    testOptions += Tests.Argument(TestFrameworks.JUnit, "-a", "-v"),
+    testOptions += Tests.Argument(TestFrameworks.JUnit, "-a", "-v", "--run-listener=test.ContextEscapeDetector"),
     // Adjust classpath for running dotty
     mainClass in (Compile, run) := Some("dotty.tools.dotc.Main"),
     fork in run := true,
     fork in Test := true,
+    parallelExecution in Test := false,
+
     // http://grokbase.com/t/gg/simple-build-tool/135ke5y90p/sbt-setting-jvm-boot-paramaters-for-scala
     javaOptions <++= (managedClasspath in Runtime, packageBin in Compile) map { (attList, bin) =>
        // put the Scala {library, reflect, compiler} in the classpath