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

        
        Element parent = new Element("Test");
        parent.appendChild("test");
        parent.appendChild("again");
        
        Nodes result = parent.query("node()[contains(., 'tag')]");
        assertEquals(2, result.size());
        assertEquals("test", result.get(0).getValue());   
        assertEquals("again", result.get(1).getValue());   
        
    }

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        Element parent = new Element("Test");
        parent.appendChild("test");
        parent.appendChild("again");
        
        Nodes result = parent.query("child::text()[1]");
        assertEquals(2, result.size());
        assertEquals("test", result.get(0).getValue());   
        assertEquals("again", result.get(1).getValue());   
        
    }

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    public void testEmptyTextNodes() {
        
        Element parent = new Element("Test");
        parent.appendChild("");
        
        Nodes result = parent.query("child::text()");
        assertEquals(0, result.size());  
        
    }

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        Element parent = new Element("parent");
        Text empty = new Text("");
        Text nonempty = new Text("value");
        parent.appendChild(nonempty);
        parent.appendChild(empty);
        Nodes result = parent.query("node()");
        assertEquals(2, result.size());
        
    }

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        Text empty = new Text("");
        Text nonempty = new Text("value");
        parent.appendChild(nonempty);
        parent.appendChild(empty);


        Nodes result2 = parent.query("/*[count(node())=1]");
        assertEquals(1, result2.size());
        assertEquals(parent, result2.get(0));
        
        Nodes nodes1 = parent.query("node()[1]");
        assertEquals(2, nodes1.size());
        Nodes nodes2 = parent.query("node()[2]");
        assertEquals(0, nodes2.size());
        
    }

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        Text nonempty2 = new Text("value2");
        parent.appendChild(empty);
        parent.appendChild(nonempty);
        parent.appendChild(nonempty2);
        
        Nodes result = parent.query("node()");
        assertEquals(3, result.size());


        Nodes result2 = parent.query("/*[count(node())=1]");
        assertEquals(1, result2.size());
        assertEquals(parent, result2.get(0));
        
        Nodes nodes1 = parent.query("node()[1]");
        assertEquals(3, nodes1.size());
        
        Nodes nodes2 = parent.query("node()[2]");
        assertEquals(0, nodes2.size());
        
    }

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    public void testNaNEvaluatesToFalse() {
        
        Element root = new Element("root");
        Document doc = new Document(root);
        
        Nodes result = doc.query("/*[boolean(0 div 0)]");
        assertEquals(0, result.size());
        
    }

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         Element span = new Element("span");
         p.appendChild(span);
         Element div = new Element("div");
         body.appendChild(div);
         
         Nodes result = div.query("preceding::*[1]");
         assertEquals(1, result.size());
         assertEquals(span, result.get(0));
         
     }

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         Element root = new Element("html");
         Document doc = new Document(root);
         root.appendChild("test");
         
         Nodes result = doc.query("/*[string(/) != '']");
         assertEquals(1, result.size());
         assertEquals(root, result.get(0));
         
     }

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     public void testContextPositionForParaentlessNodeIs1() {
      
         Element root = new Element("html");
         
         Nodes result = root.query("self::*[1]");
         assertEquals(1, result.size());
         assertEquals(root, result.get(0));
         
     }

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