1 files changed, 135 insertions, 0 deletions
diff --git a/compiler/src/test/scala/scala/scalajs/compiler/test/EnumerationInteropTest.scala b/compiler/src/test/scala/scala/scalajs/compiler/test/EnumerationInteropTest.scala
new file mode 100644
index 0000000..e186cf4
--- /dev/null
+++ b/compiler/src/test/scala/scala/scalajs/compiler/test/EnumerationInteropTest.scala
@@ -0,0 +1,135 @@
+package scala.scalajs.compiler.test
+
+import scala.scalajs.compiler.test.util._
+
+import org.junit.Test
+
+class EnumerationInteropTest extends DirectTest with TestHelpers {
+
+  @Test
+  def warnIfUnableToTransformValue = {
+
+    """
+    class A extends Enumeration {
+      val a = {
+        println("oh, oh!")
+        Value
+      }
+      val b = {
+        println("oh, oh!")
+        Value(4)
+      }
+    }
+    """ hasWarns
+    """
+      |newSource1.scala:5: warning: Couldn't transform call to Enumeration.Value.
+      |The resulting program is unlikely to function properly as this
+      |operation requires reflection.
+      |        Value
+      |        ^
+      |newSource1.scala:9: warning: Couldn't transform call to Enumeration.Value.
+      |The resulting program is unlikely to function properly as this
+      |operation requires reflection.
+      |        Value(4)
+      |             ^
+    """
+
+  }
+
+  @Test
+  def warnIfNoNameVal = {
+
+    """
+    class A extends Enumeration {
+      val a = new Val
+      val b = new Val(10)
+    }
+    """ hasWarns
+    """
+      |newSource1.scala:3: warning: Calls to the non-string constructors of Enumeration.Val
+      |require reflection at runtime. The resulting
+      |program is unlikely to function properly.
+      |      val a = new Val
+      |              ^
+      |newSource1.scala:4: warning: Calls to the non-string constructors of Enumeration.Val
+      |require reflection at runtime. The resulting
+      |program is unlikely to function properly.
+      |      val b = new Val(10)
+      |              ^
+    """
+
+  }
+
+  @Test
+  def warnIfNullValue = {
+
+    """
+    class A extends Enumeration {
+      val a = Value(null)
+      val b = Value(10, null)
+    }
+    """ hasWarns
+    """
+      |newSource1.scala:3: warning: Passing null as name to Enumeration.Value
+      |requires reflection at runtime. The resulting
+      |program is unlikely to function properly.
+      |      val a = Value(null)
+      |                   ^
+      |newSource1.scala:4: warning: Passing null as name to Enumeration.Value
+      |requires reflection at runtime. The resulting
+      |program is unlikely to function properly.
+      |      val b = Value(10, null)
+      |                   ^
+    """
+
+  }
+
+  @Test
+  def warnIfNullNewVal = {
+
+    """
+    class A extends Enumeration {
+      val a = new Val(null)
+      val b = new Val(10, null)
+    }
+    """ hasWarns
+    """
+      |newSource1.scala:3: warning: Passing null as name to a constructor of Enumeration.Val
+      |requires reflection at runtime. The resulting
+      |program is unlikely to function properly.
+      |      val a = new Val(null)
+      |              ^
+      |newSource1.scala:4: warning: Passing null as name to a constructor of Enumeration.Val
+      |requires reflection at runtime. The resulting
+      |program is unlikely to function properly.
+      |      val b = new Val(10, null)
+      |              ^
+    """
+
+  }
+
+  @Test
+  def warnIfExtNoNameVal = {
+
+    """
+    class A extends Enumeration {
+      protected class Val1 extends Val
+      protected class Val2 extends Val(1)
+    }
+    """ warns() // no message checking: position differs in 2.10 and 2.11
+
+  }
+
+  @Test
+  def warnIfExtNullNameVal = {
+
+    """
+    class A extends Enumeration {
+      protected class Val1 extends Val(null)
+      protected class Val2 extends Val(1,null)
+    }
+    """ warns() // no message checking: position differs in 2.10 and 2.11
+
+  }
+
+}