wip

Author: sjrd

project/Build.scala

@@ -1259,6 +1259,7 @@ object Build {
 
           ++ conditionally(!hasModules, "js/src/test/require-no-modules")
           ++ conditionally(hasModules, "js/src/test/require-modules")
+          ++ conditionally(hasModules && !linkerConfig.closureCompiler, "js/src/test/require-multi-modules")
           ++ conditionally(moduleKind == ModuleKind.ESModule, "js/src/test/require-dynamic-import")
           ++ conditionally(moduleKind == ModuleKind.ESModule, "js/src/test/require-esmodule")
         )

sandbox/scalajs/src/hello.scala

@@ -1,15 +1,38 @@
 package hello
 
-import scala.scalajs.js
+import scala.concurrent._
+import scala.concurrent.ExecutionContext.Implicits.global
 
-trait MyTrait {
-  val x = 5
-  def foo(y: Int) = x
-}
+import scala.scalajs.js
+import scala.scalajs.js.annotation._
 
-object HelloWorld extends MyTrait {
+object HelloWorld {
   def main(args: Array[String]): Unit = {
     println("hello dotty.js!")
-    println(foo(4))
+    new Test().localDefDynamic().onComplete(println(_))
   }
 }
+
+class Test {
+  def localDefDynamic(): Future[Unit] = {
+    assertDynamicLoad {
+      js.dynamicImport {
+        def test(x: Int) = FailureOnLoad
+        test(2)
+      }
+    }
+  }
+
+  private def assertDynamicLoad[T](promise: js.Promise[T]): Future[Unit] = {
+    promise.toFuture
+      .map(_ => throw new AssertionError("expected failure"))
+      .recover {
+        case js.JavaScriptException(e: js.Error)
+            if e.message == "load failure for test" =>
+      }
+  }
+}
+
+@JSImport("../test-classes/fail-load.js", JSImport.Default)
+@js.native
+private object FailureOnLoad extends js.Object