Transformers

Author: adriaanm

src/test/scala/scala/xml/Transformers.scala

@@ -0,0 +1,59 @@
+package scala.xml
+
+import scala.xml.transform._
+
+import org.junit.Test
+import org.junit.Assert.assertTrue
+import org.junit.Assert.assertEquals
+
+class Transformers {
+
+
+  def transformer = new RuleTransformer(new RewriteRule {
+    override def transform(n: Node): NodeSeq = n match {
+      case <t>{ _* }</t> => <q/>
+      case n => n
+    }
+  })
+
+  @Test
+  def transform = // SI-2124
+    assertEquals(transformer.transform(<p><lost/><t><s><r></r></s></t></p>),
+      <p><lost/><q/></p>)
+
+  @Test
+  def transformNamespaced = // SI-2125
+    assertEquals(transformer.transform(<xml:group><p><lost/><t><s><r></r></s></t></p></xml:group>),
+      Group(<p><lost/><q/></p>))
+
+  @Test
+  def rewriteRule = { // SI-2276
+    val inputXml: Node =
+      <root>
+        <subnode>
+          <version>1</version>
+        </subnode>
+        <contents>
+          <version>1</version>
+        </contents>
+      </root>
+
+    object t1 extends RewriteRule {
+      override def transform(n: Node): Seq[Node] = n match {
+        case <version>{ x }</version> if x.toString.toInt < 4 => <version>{ x.toString.toInt + 1 }</version>
+        case other => other
+      }
+    }
+
+    val ruleTransformer = new RuleTransformer(t1)
+    JUnitAssertsForXML.assertEquals(ruleTransformer(inputXml).toString, // TODO: why do we need toString?
+      <root>
+        <subnode>
+          <version>2</version>
+        </subnode>
+        <contents>
+          <version>2</version>
+        </contents>
+      </root>)
+  }
+}