add showStackTrace to turn stack trace into string

Author: cvogt

project/Build.scala

@@ -7,19 +7,19 @@ object MyBuild extends Build{
  lazy val aRootProject = Project(id = projectName, base = file("."),
  settings = Seq(
  name := projectName,
- scalaVersion := "2.11.7",
+ scalaVersion := "2.11.8",
  crossScalaVersions := Seq("2.10.6",scalaVersion.value),
  description := "Composable Records and type-indexed Maps for Scala",
  libraryDependencies ++= Seq(
- "org.scalatest" %% "scalatest" % "2.2.4" % "test",
- "org.typelevel" %% "macro-compat" % "1.0.5",
+ "org.scalatest" %% "scalatest" % "3.0.0-RC4" % "test",
+ "org.typelevel" %% "macro-compat" % "1.0.7",
  "org.scala-lang" % "scala-reflect" % scalaVersion.value % "provided"
  ),
  scalacOptions ++= Seq("-feature", "-deprecation", "-unchecked"),
  //scalacOptions ++= Seq("-Xprint:patmat", "-Xshow-phases"),
  testOptions in Test += Tests.Argument(TestFrameworks.ScalaTest, "-oFD"),
  parallelExecution := false, // <- until TMap thread-safety issues are resolved
- version := "0.4.1",
+ version := "0.4.2",
  organizationName := "Jan Christopher Vogt",
  organization := "org.cvogt",
  scalacOptions in (Compile, doc) <++= (version,sourceDirectory in Compile,name).map((v,src,n) => Seq(

src/main/scala/debug.scala

@@ -21,6 +21,18 @@ object `package`{
  }
  }
  */
+ implicit class ThrowableExtensions( t: Throwable ) {
+ def showStackTrace: String = {
+ import java.io._
+ val sw = new StringWriter()
+ val pw = new PrintWriter( sw )
+ t.printStackTrace( pw )
+ val s = sw.toString
+ sw.close
+ pw.close
+ s
+ }
+ }
 }
 
 /** Suppresses JVM output to stdout and stderr in a block of code

src/test/scala/debug.scala

@@ -5,11 +5,16 @@ import org.scalactic.TypeCheckedTripleEquals._
 
 import org.cvogt.scala.debug._
 
-class ScalarTest extends FunSuite{
+class DebugTest extends FunSuite{
  test("debug"){
  SUPPRESS_OUTPUT{
  def foo = 5.println.println
  //assert( Seq(2,4,6) === Seq(1,2,3).println.printlnEach.foreach2(identity).map(_*2) )
  }
  }
+ test("showStackTrace"){
+ assert(
+ new Exception().showStackTrace contains "DebugTest"
+ )
+ }
 }