test_AbstractNodeTester.java

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package org.custommonkey.xmlunit;

import junit.framework.Assert;
import junit.framework.TestCase;

import org.w3c.dom.Attr;
import org.w3c.dom.CDATASection;
import org.w3c.dom.Comment;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentType;
import org.w3c.dom.Element;
import org.w3c.dom.Entity;
import org.w3c.dom.EntityReference;
import org.w3c.dom.Node;
import org.w3c.dom.Notation;
import org.w3c.dom.ProcessingInstruction;
import org.w3c.dom.Text;

/**
 * JUnit test for AbstractNodeTester
 */
public class test_AbstractNodeTester extends TestCase {

    private Document doc;

    public void setUp() {
        doc = XMLUnit.newControlParser().newDocument();
    }

    public void testExactlyOncePerMethod() throws Exception {
        String testXml = "<!DOCTYPE foo ["
            + "<!ELEMENT foo (#PCDATA)>"
            + "<!ATTLIST foo  attr CDATA #IMPLIED>"
            + "<!ENTITY my \"hello\">"
            + "<!NOTATION notation PUBLIC \"pub\">"
            + "]>"
            + "<foo attr=\"value\">"
            + "<!--comment-->"
            + "<?target processing-instruction?>"
            + "bar"
            + "&my;"
            + "xyzzy"
            + "<![CDATA[baz]]>"
            + "</foo>";
        NodeTest nt = new NodeTest(testXml);
        ExactlyOncePerMethod tester = new ExactlyOncePerMethod();
        nt.performTest(tester, new short[] {
                           Node.ATTRIBUTE_NODE,
                           Node.CDATA_SECTION_NODE,
                           Node.COMMENT_NODE,
                           Node.DOCUMENT_FRAGMENT_NODE,
                           Node.DOCUMENT_NODE,
                           Node.DOCUMENT_TYPE_NODE,
                           Node.ELEMENT_NODE,
                           Node.ENTITY_NODE,
                           Node.ENTITY_REFERENCE_NODE,
                           Node.NOTATION_NODE,
                           Node.PROCESSING_INSTRUCTION_NODE,
                           Node.TEXT_NODE,
                       });
        tester.verify();
    }

    // seems to never get called in real tests
    public void testAttribute() {
        AbstractNodeTester t = new AbstractNodeTester() { };
        Attr n = doc.createAttribute("foo");
        try {
            t.testNode(n, null);
            fail("expected exception");
        } catch (NodeTestException ex) {
            assertSame(n, ex.getNode());
        }
    }

    public void testCDATASection() {
        AbstractNodeTester t = new AbstractNodeTester() { };
        CDATASection n = doc.createCDATASection("foo");
        try {
            t.testNode(n, null);
            fail("expected exception");
        } catch (NodeTestException ex) {
            assertSame(n, ex.getNode());
        }
    }

    public void testComment() {
        AbstractNodeTester t = new AbstractNodeTester() { };
        Comment n = doc.createComment("foo");
        try {
            t.testNode(n, null);
            fail("expected exception");
        } catch (NodeTestException ex) {
            assertSame(n, ex.getNode());
        }
    }

    public void testElement() {
        AbstractNodeTester t = new AbstractNodeTester() { };
        Element n = doc.createElement("foo");
        try {
            t.testNode(n, null);
            fail("expected exception");
        } catch (NodeTestException ex) {
            assertSame(n, ex.getNode());
        }
    }

    public void testEntityReference() {
        AbstractNodeTester t = new AbstractNodeTester() { };
        EntityReference n = doc.createEntityReference("foo");
        try {
            t.testNode(n, null);
            fail("expected exception");
        } catch (NodeTestException ex) {
            assertSame(n, ex.getNode());
        }
    }

    public void testProcessingInstruction() {
        AbstractNodeTester t = new AbstractNodeTester() { };
        ProcessingInstruction n = doc.createProcessingInstruction("foo", "bar");
        try {
            t.testNode(n, null);
            fail("expected exception");
        } catch (NodeTestException ex) {
            assertSame(n, ex.getNode());
        }
    }

    public void testTextNode() {
        AbstractNodeTester t = new AbstractNodeTester() { };
        Text n = doc.createTextNode("foo");
        try {
            t.testNode(n, null);
            fail("expected exception");
        } catch (NodeTestException ex) {
            assertSame(n, ex.getNode());
        }
    }

    // never called as NodeTest directly jumps to the document element
    public void testDocumentType() throws Exception {
        AbstractNodeTester t = new AbstractNodeTester() { };
        DocumentType n = XMLUnit
            .buildControlDocument("<!DOCTYPE Book PUBLIC \"XMLUNIT/TEST/PUB1\" \"../test-resources/Book.dtd\">"
                                  + "<Book/>")
            .getDoctype();
        try {
            t.testNode(n, null);
            fail("expected exception");
        } catch (NodeTestException ex) {
            assertSame(n, ex.getNode());
        }
    }

    private class ExactlyOncePerMethod extends AbstractNodeTester {

        private boolean cdataCalled;
        private boolean commentCalled;
        private boolean elementCalled;
        private boolean piCalled;
        private boolean textCalled;
        private boolean noMoreNodesCalled;
        private boolean entityReferenceCalled;

        public void testCDATASection(CDATASection cdata) {
            Assert.assertFalse("testCDATASection called", cdataCalled);
            cdataCalled = true;
            Assert.assertEquals("baz", cdata.getNodeValue());
        }

        public void testComment(Comment comment) {
            Assert.assertFalse("testComment called", commentCalled);
            commentCalled = true;
            Assert.assertEquals("comment", comment.getNodeValue());
        }

        public void testElement(Element element) {
            Assert.assertFalse("testElement called", elementCalled);
            elementCalled = true;
            Assert.assertEquals("foo", element.getNodeName());
            Assert.assertEquals("value", element.getAttribute("attr"));
        }

        public void testProcessingInstruction(ProcessingInstruction instr) {
            Assert.assertFalse("testProcessingInstruction called", piCalled);
            piCalled = true;
            Assert.assertEquals("target", instr.getTarget());
            Assert.assertEquals("processing-instruction", instr.getData());
        }

        public void testText(Text text) {
            String fullText = text.getNodeValue();
            if (fullText.startsWith("bar")) {
                Assert.assertFalse("testText called", textCalled);
            }
            if (!"barhelloxyzzy".equals(fullText)) {
                if (!textCalled) {
                    Assert.assertEquals("bar", fullText);
                } else {
                    if (!"helloxyzzy".equals(fullText)) {
                        Assert.assertEquals("xyzzy", fullText); // parser didn't expand entity reference
                        Assert.assertTrue("testEntityReference called", entityReferenceCalled);
                    }
                }
            } // else - parser didn't expand entity reference
            textCalled = true;
        }

        public void testEntityReference(EntityReference reference) {
            Assert.assertTrue("testEntityReference called after testText called", textCalled);
            Assert.assertEquals("my", reference.getNodeName());
            entityReferenceCalled = true;
        }

        public void noMoreNodes(NodeTest t) {
            Assert.assertFalse("noMoreNodes called", noMoreNodesCalled);
            noMoreNodesCalled = true;
        }

        void verify() {
            Assert.assertTrue("testCDATASection not called", cdataCalled);
            Assert.assertTrue("testComment not called", commentCalled);
            Assert.assertTrue("testElement not called", elementCalled);
            Assert.assertTrue("testProcessingInstruction not called",
                              piCalled);
            Assert.assertTrue("testText not called", textCalled);
            Assert.assertTrue("noMoreNodes not called", noMoreNodesCalled);
        }
    }
}