Add test of NodeBuffer for scala#115

Author: ashawley

js/src/test/scala/scala/xml/NodeBufferTest.scala

@@ -0,0 +1,13 @@
+package scala.xml
+
+import org.junit.Test
+import org.junit.Assert.assertEquals
+
+class NodeBufferTest {
+
+  @Test
+  def testToString: Unit = {
+    val nodeBuffer = new NodeBuffer
+    assertEquals("NodeBuffer()", nodeBuffer.toString)
+  }
+}

jvm/src/test/scala/scala/xml/NodeBufferTest.scala

@@ -0,0 +1,13 @@
+package scala.xml
+
+import org.junit.Test
+import org.junit.Assert.assertEquals
+
+class NodeBufferTest {
+
+  @Test
+  def testToString: Unit = {
+    val nodeBuffer = new NodeBuffer
+    assertEquals("NodeBuffer()", nodeBuffer.toString)
+  }
+}