Examples of nu.xom.Nodes

nu.xom.Nodes

Implements a list of nodes for traversal purposes. Changes to the document from which this list was generated are not reflected in this list, nor are changes to the list reflected in the document. Changes to the individual Node objects in the list and the document are reflected in the other one.

There is no requirement that the list not contain duplicates, or that all the members come from the same document. It is simply a list of nodes.
@author Elliotte Rusty Harold @version 1.1b4

    
     public void testContextSizeForParaentlessNodeIs1() {
      
         Element root = new Element("html");
         
         Nodes result = root.query("self::*[last()=1]");
         assertEquals(1, result.size());
         assertEquals(root, result.get(0));
         
     }

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         Element child2 = new Element("child2");
         root.appendChild(child1);
         root.appendChild(child2);
         new Document(root);
         
         Nodes result = child2.query("self::*[position()=last()]");
         assertEquals(1, result.size());
         assertEquals(child2, result.get(0));
         
     }

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             + "</servlet-mapping>\n</root>";
         
         Builder builder = new Builder();
         Document doc = builder.build(data, null);
         
         Nodes result = doc.query("//*[./../servlet-name = 'DeviceInfoServlet']");
         assertEquals(2, result.size());
       
     }

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            + "   </e1>\n"
            + "</doc>";
        
        Document doc = (new Builder()).build(input, null);
        String xpath = "(/*/* | /*/*/namespace::*)\n";
        Nodes result = doc.query(xpath);
        assertEquals(4, result.size());
        Element parent = (Element) result.get(0);
        for (int i = 1; i < 4; i++) {
            Namespace namespace = (Namespace) result.get(i); 
            assertEquals(parent, namespace.getParent());
        }
        
    }

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            + "   </e1>\n"
            + "</document>";
        
        Document doc = (new Builder()).build(input, null);
        String xpath = "(/*/* | /*/*/attribute::*)\n";
        Nodes result = doc.query(xpath);
        assertEquals(4, result.size());
        Element parent = (Element) result.get(0);
        for (int i = 1; i < 4; i++) {
            Attribute attribute = (Attribute) result.get(i); 
            assertEquals(parent, attribute.getParent());
        }
        
    }

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        Document doc = new Document(root);
        root.appendChild(new Element("child"));
        root.appendChild("test");
        root.addAttribute(new Attribute("test", "test"));
        
        Nodes nodes = doc.query("// a");
        assertEquals(0, nodes.size());
        
    }

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                            assertNotNull(success.getMessage());
                        }
                    }
                    else {
                        try {
                            Nodes results = context.query(select, namespaces);
                            if (count != -1) {
                                assertEquals(select, count, results.size());
                            }
                            Elements valueOfs = test.getChildElements("valueOf");
                            for (int v = 0; v < valueOfs.size(); v++) {
                                Element vo = valueOfs.get(v);
                                checkValueOf(results.get(0), vo, namespaces);
                            }
                        }
                        catch (XPathException ex) {
                            if (ex.getMessage().equalsIgnoreCase("XPath error: No such function document")
                              || ex.getMessage().equalsIgnoreCase("XPath error: No such function evaluate")) {

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    private void checkValueOf(Node context, Element valueOf, XPathContext namespaces) {


        String select = valueOf.getAttributeValue("select");
        try {
            Nodes nodes = context.query(select, namespaces);
            String result = nodes.get(0).getValue();
            assertEquals(valueOf.getValue(), result);
        }
        catch (XPathTypeException ex) {
            assertNotNull(ex.getMessage());
        }

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        name.appendChild("a");
        item.appendChild(name);
        Element value = new Element("value");
        value.appendChild("b");
        item.appendChild(value);
        Nodes result = doc.query("/item[name/text()='a']/value");
        assertEquals(1, result.size());
        assertEquals("b", result.get(0).getValue());
        
    }

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    public void testSimpleTextChildInPredicate() {
        
        Element item = new Element("item");
        Document doc = new Document(item);
        item.appendChild("a");
        Nodes result = doc.query("/item[text()='a']");
        assertEquals(1, result.size());
        
    }

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