1 files changed, 99 insertions, 0 deletions
diff --git a/scalajslib/test/src/mill/scalajslib/MultiModuleTests.scala b/scalajslib/test/src/mill/scalajslib/MultiModuleTests.scala
new file mode 100644
index 00000000..0f2df335
--- /dev/null
+++ b/scalajslib/test/src/mill/scalajslib/MultiModuleTests.scala
@@ -0,0 +1,99 @@
+package mill.scalajslib
+
+import ammonite.ops._
+import mill._
+import mill.define.Discover
+import mill.eval.Evaluator
+import mill.util._
+import mill.scalalib._
+import utest._
+
+object MultiModuleTests extends TestSuite {
+  val workspacePath =  TestUtil.getOutPathStatic() / "multi-module"
+  val sourcePath = pwd / 'scalajslib / 'test / 'resources / "multi-module"
+
+  object MultiModule extends TestUtil.BaseModule {
+    trait BaseModule extends ScalaJSModule {
+      def scalaVersion = "2.12.4"
+      def scalaJSVersion = "0.6.22"
+    }
+
+    object client extends BaseModule {
+      override def millSourcePath = workspacePath / 'client
+      override def moduleDeps = Seq(shared)
+      override def mainClass = Some("Main")
+      object test extends Tests {
+        def testFrameworks = Seq("utest.runner.Framework")
+        override def ivyDeps = Agg(ivy"com.lihaoyi::utest::0.6.3")
+      }
+    }
+
+    object shared extends BaseModule {
+      override def millSourcePath = workspacePath / 'shared
+    }
+
+    override def millDiscover = Discover[this.type]
+  }
+
+  val evaluator = TestEvaluator.static(MultiModule)
+
+  def tests: Tests = Tests {
+    prepareWorkspace()
+
+    def checkOpt(mode: OptimizeMode) = {
+      val task = mode match {
+        case FullOpt => MultiModule.client.fullOpt
+        case FastOpt => MultiModule.client.fastOpt
+      }
+      val Right((linked, evalCount)) = evaluator(task)
+
+      val runOutput = ScalaJsUtils.runJS(linked.path)
+      assert(
+        evalCount > 0,
+        runOutput == "Hello from Scala.js, result is: 3"
+      )
+    }
+
+    'fastOpt - checkOpt(FastOpt)
+    'fullOpt - checkOpt(FullOpt)
+
+    'test - {
+      val Right(((_, testResults), evalCount)) = evaluator(MultiModule.client.test.test())
+
+      assert(
+        evalCount > 0,
+        testResults.size == 3,
+        testResults.forall(_.status == "Success")
+      )
+    }
+
+    def checkRun(mainClass: Option[String] = None) = {
+      val command = mainClass match {
+        case Some(main) => MultiModule.client.runMain(main)
+        case None => MultiModule.client.run()
+      }
+      val Right((_, evalCount)) = evaluator(command)
+
+      val paths = Evaluator.resolveDestPaths(
+        evaluator.outPath,
+        command.ctx.segments
+      )
+      val log = read(paths.log)
+      assert(
+        evalCount > 0,
+        log.contains("node"),
+        log.contains("Hello from Scala.js, result is: 3")
+      )
+    }
+
+    'run - checkRun()
+    'runMain - checkRun(mainClass = Some("Main"))
+  }
+
+  def prepareWorkspace(): Unit = {
+    rm(workspacePath)
+    mkdir(workspacePath / up)
+    cp(sourcePath, workspacePath)
+  }
+
+}