Add tests for XPathProcessor

src/test/java/org/javarosa/xform/parse/XPathProcessorTest.java

@@ -0,0 +1,102 @@
+package org.javarosa.xform.parse;
+
+import org.javarosa.core.util.XFormsElement;
+import org.javarosa.xpath.expr.XPathExpression;
+import org.javarosa.xpath.expr.XPathPathExpr;
+import org.javarosa.xpath.expr.XPathQName;
+import org.javarosa.xpath.expr.XPathStep;
+import org.jetbrains.annotations.NotNull;
+import org.junit.Test;
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.contains;
+import static org.hamcrest.Matchers.equalTo;
+import static org.javarosa.core.util.BindBuilderXFormsElement.bind;
+import static org.javarosa.core.util.XFormsElement.body;
+import static org.javarosa.core.util.XFormsElement.head;
+import static org.javarosa.core.util.XFormsElement.input;
+import static org.javarosa.core.util.XFormsElement.mainInstance;
+import static org.javarosa.core.util.XFormsElement.model;
+import static org.javarosa.core.util.XFormsElement.t;
+
+public class XPathProcessorTest {
+
+ @Test
+ public void processesXPathExpressions() throws Exception {
+ XFormsElement form = XFormsElement.html(
+ head(
+ model(
+ mainInstance(
+ t("data id=\"form\"",
+ t("question")
+ )
+ ),
+ bind("/data/question").type("string")
+ )
+ ),
+ body(
+ input("/data/question")
+ )
+ );
+
+ XFormParser parser = new XFormParser(new InputStreamReader(new ByteArrayInputStream(form.asXml().getBytes())));
+ RecordingXPathProcessor processor = new RecordingXPathProcessor();
+ parser.addProcessor(processor);
+ parser.parse(null);
+
+ assertThat(processor.processedExpressions, contains(
+ new XPathPathExpr(XPathPathExpr.INIT_CONTEXT_ROOT, new XPathStep[]{
+ new XPathStep(XPathStep.AXIS_CHILD, new XPathQName("data")),
+ new XPathStep(XPathStep.AXIS_CHILD, new XPathQName("question"))
+ }),
+ new XPathPathExpr(XPathPathExpr.INIT_CONTEXT_ROOT, new XPathStep[]{
+ new XPathStep(XPathStep.AXIS_CHILD, new XPathQName("data")),
+ new XPathStep(XPathStep.AXIS_CHILD, new XPathQName("question"))
+ })
+ ));
+ }
+
+ @Test
+ public void processorsAreNotRetainedBetweenParses() throws Exception {
+ XFormsElement form = XFormsElement.html(
+ head(
+ model(
+ mainInstance(
+ t("data id=\"form\"",
+ t("question")
+ )
+ ),
+ bind("/data/question").type("string")
+ )
+ ),
+ body(
+ input("/data/question")
+ )
+ );
+
+ XFormParser parser = new XFormParser(new InputStreamReader(new ByteArrayInputStream(form.asXml().getBytes())));
+ RecordingXPathProcessor processor = new RecordingXPathProcessor();
+ parser.addProcessor(processor);
+ parser.parse(null);
+ assertThat(processor.processedExpressions.size(), equalTo(2));
+
+ XFormParser secondParser = new XFormParser(new InputStreamReader(new ByteArrayInputStream(form.asXml().getBytes())));
+ secondParser.parse(null);
+ assertThat(processor.processedExpressions.size(), equalTo(2));
+ }
+
+ private static class RecordingXPathProcessor implements XFormParser.XPathProcessor {
+
+ public final List<XPathExpression> processedExpressions = new ArrayList<>();
+
+ @Override
+ public void processXPath(@NotNull XPathExpression xPathExpression) {
+ processedExpressions.add(xPathExpression);
+ }
+ }
+}