update testSamples build setting

Author: xuwei-k

build.sbt

@@ -24,7 +24,7 @@ ThisBuild / Test / scalafmtOnCompile := !(Global / insideCI).value
 
 lazy val root = (project in file("."))
   .enablePlugins(ShadingPlugin)
-  .aggregate(launchInterfaceSub, launchSub)
+  .aggregate(launchInterfaceSub, launchSub, testSamples)
   .settings(javaOnly ++ Util.commonSettings("launcher") ++ Release.settings)
   .settings(nocomma {
     mimaPreviousArtifacts := Set.empty
@@ -170,8 +170,10 @@ def ivyFilter = {
 lazy val testSamples = (project in file("test-sample"))
   .dependsOn(launchInterfaceSub)
   .settings(Release.javaVersionCheckSettings)
+  .settings(Util.baseScalacOptions)
   .settings(nocomma {
     name := "Launch Test"
+    mimaFailOnNoPrevious := false
     publish := { () }
     publishSigned := { () }
     libraryDependencies += scalaCompiler.value

test-sample/src/main/scala/xsbt/boot/test/Apps.scala

@@ -1,4 +1,4 @@
-/** These are packaged and published locally and the resulting artifact is used to test the launcher.*/
+/** These are packaged and published locally and the resulting artifact is used to test the launcher. */
 package xsbt.boot.test
 
 class Exit(val code: Int) extends xsbti.Exit
@@ -22,7 +22,7 @@ class AppVersionTest extends xsbti.AppMain {
   }
 }
 class ExtraTest extends xsbti.AppMain {
-  def run(configuration: xsbti.AppConfiguration) = {
+  def run(configuration: xsbti.AppConfiguration): xsbti.Exit = {
     configuration.arguments.foreach { arg =>
       if (getClass.getClassLoader.getResource(arg) eq null)
         throw new MainException("Could not find '" + arg + "'")
@@ -31,7 +31,7 @@ class ExtraTest extends xsbti.AppMain {
   }
 }
 class PriorityTest extends xsbti.AppMain {
-  def run(configuration: xsbti.AppConfiguration) =
+  def run(configuration: xsbti.AppConfiguration): xsbti.Exit =
     PriorityTest.run(configuration)
 }
 object PriorityTest {

test-sample/src/main/scala/xsbt/boot/test/Servers.scala

@@ -1,4 +1,4 @@
-/** These are packaged and published locally and the resulting artifact is used to test the launcher.*/
+/** These are packaged and published locally and the resulting artifact is used to test the launcher. */
 package xsbt.boot.test
 
 import java.net.Socket
@@ -41,7 +41,7 @@ class EchoServer extends xsbti.ServerMain {
             // Lame way to break out.
             breakable {
               def read(): Unit = input.readLine match {
-                case null => ()
+                case null   => ()
                 case "kill" =>
                   running.set(false)
                   serverSocket.close()