1 files changed, 45 insertions, 0 deletions
diff --git a/main/test/src/eval/ModuleTests.scala b/main/test/src/eval/ModuleTests.scala
new file mode 100644
index 00000000..f28fc9b6
--- /dev/null
+++ b/main/test/src/eval/ModuleTests.scala
@@ -0,0 +1,45 @@
+package mill.eval
+
+
+import mill.util.{TestEvaluator, TestUtil}
+import mill.T
+import mill.define.Discover
+
+import utest._
+
+object ModuleTests extends TestSuite{
+  object ExternalModule extends mill.define.ExternalModule {
+    def x = T{13}
+    object inner extends mill.Module{
+      def y = T{17}
+    }
+    lazy val millDiscover = Discover[this.type]
+  }
+  object Build extends TestUtil.BaseModule{
+    def z = T{ ExternalModule.x() + ExternalModule.inner.y() }
+  }
+  val tests = Tests {
+    os.remove.all(TestEvaluator.externalOutPath)
+    'externalModuleTargetsAreNamespacedByModulePackagePath - {
+      val check = new TestEvaluator(Build)
+      val zresult = check.apply(Build.z)
+      assert(
+        zresult == Right((30, 1)),
+        os.read(check.evaluator.outPath / 'z / "meta.json").contains("30"),
+        os.read(TestEvaluator.externalOutPath / 'mill / 'eval / 'ModuleTests / 'ExternalModule / 'x / "meta.json").contains("13"),
+        os.read(TestEvaluator.externalOutPath / 'mill / 'eval / 'ModuleTests / 'ExternalModule / 'inner / 'y / "meta.json").contains("17")
+      )
+    }
+    'externalModuleMustBeGlobalStatic - {
+
+
+      object Build extends mill.define.ExternalModule {
+
+        def z = T{ ExternalModule.x() + ExternalModule.inner.y() }
+        lazy val millDiscover = Discover[this.type]
+      }
+
+      intercept[java.lang.AssertionError]{ Build }
+    }
+  }
+}