Activate test-quick scripted test

sbt-app/src/sbt-test/tests/test-quick/build.sbt

@@ -1,9 +1,8 @@
 val scalatest = "org.scalatest" %% "scalatest" % "3.0.5"
-val scalaxml = "org.scala-lang.modules" %% "scala-xml" % "1.1.1"
 ThisBuild / scalaVersion := "2.12.12"
 
 lazy val root = (project in file("."))
   .settings(
-    libraryDependencies ++= List(scalaxml, scalatest),
+    libraryDependencies += scalatest % Test,
     Test / parallelExecution := false
   )

sbt-app/src/sbt-test/tests/test-quick/src/test/scala/Create.scala

@@ -1,11 +1,10 @@
 import org.scalatest.FlatSpec
-import org.scalatest.matchers.ShouldMatchers
 
-class Create extends FlatSpec with ShouldMatchers with Base {
+class Create extends FlatSpec with Base {
   "a file" should "not exist" in {
 		A(new B).foo
-		marker.exists should equal(false)
-		marker.createNewFile() should equal (true)
+		assert(marker.exists == false)
+		assert(marker.createNewFile() == true)
   }
 
 }

sbt-app/src/sbt-test/tests/test-quick/src/test/scala/Delete.scala

@@ -1,9 +1,8 @@
 import org.scalatest.FlatSpec
-import org.scalatest.matchers.ShouldMatchers
 
-class Delete extends FlatSpec with ShouldMatchers with Base {
+class Delete extends FlatSpec with Base {
   "a file" should "exist" in {
-		marker.exists should equal(true)
+		assert(marker.exists == true)
 		marker.delete()
   }