moved the stdlib tests into the same directory as the stdlib, so it works a bit better with maven support in IDEA

libraries/stdlib/test/dom/DomTest.kt

@@ -0,0 +1,39 @@
+package test.dom
+
+import kotlin.*
+import kotlin.dom.*
+import kotlin.test.*
+import org.w3c.dom.*
+import junit.framework.TestCase
+
+class DomTest() : TestCase() {
+
+    fun testCreateDocument() {
+        var doc = createDocument()
+        assertNotNull(doc, "Should have created a document")
+
+        val e = doc.createElement("foo").sure()
+        assertCssClass(e, "")
+
+        // now lets update the cssClass property
+        e.classes = "foo"
+        assertCssClass(e, "foo")
+
+        // now using the attribute directly
+        e.setAttribute("class", "bar")
+        assertCssClass(e, "bar")
+
+        doc += e
+        println("document ${doc.toXmlString()}")
+    }
+
+
+    fun assertCssClass(e: Element, value: String?): Unit {
+        val cl = e.classes
+        val cl2 = e.getAttribute("class")
+        println("element ${e.toXmlString()} has cssClass `${cl}` class attr `${cl2}`")
+
+        assertEquals(value, cl, "value of element.cssClass")
+        assertEquals(value, cl2, "value of element.getAttribute(\"class\")")
+    }
+}