xpathtestbase.java

XML的解析、编译、查询等技术的JAVA源代码。

        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/root/c", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            assertValueOfXPath("d", context, "string()");
        }
    }

    /* test for jaxen-3
    */
    public void testJaxen3dupe() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/jaxen3.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            assertCountXPath(1, context, "/Configuration/hostname/attrlist/hostname[. = 'CE-A'] ");
        }
    }

    /* parser test cases all of which should fail
    */
    public void testForParserErrors() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/numbers.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            /* repeated xpaths, jaxen-35
            */
            assertInvalidXPath(context, "/numbers numbers");
            /* invalid xpath, jaxen-34
            */
            assertInvalidXPath(context, "/a/b[c > d]efg");
            /* invalid xpath, jaxen-27
            */
            assertInvalidXPath(context, "/inv/child::");
            /* invalid xpath, jaxen-26
            */
            assertInvalidXPath(context, "/invoice/@test[abcd");
            assertInvalidXPath(context, "/invoice/@test[abcd > x");
            /* unterminated string
            */
            assertInvalidXPath(context, "string-length('a");
            /* various edge cases where code threw no exception
            */
            assertInvalidXPath(context, "/descendant::()");
            assertInvalidXPath(context, "(1 + 1");
            // no ! operator
            assertInvalidXPath(context, "!false()");
        }
    }

    /* test cases for the use of underscores in names
    */
    public void testUnderscoresInNames() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/underscore.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            assertCountXPath(1, context, "/root/@a");
            assertCountXPath(1, context, "/root/@_a");
            assertCountXPath(1, context, "/root/b");
            assertCountXPath(1, context, "/root/_b");
            assertValueOfXPath("1", context, "/root/@a");
            assertValueOfXPath("2", context, "/root/@_a");
            assertValueOfXPath("1", context, "/root/b");
            assertValueOfXPath("2", context, "/root/_b");
        }
    }

    /* test cases for the use of = with node-sets
    */
    public void testNodesetEqualsString() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/web.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            assertValueOfXPath("true", context, "/web-app/servlet/servlet-name = 'file'");
            assertValueOfXPath("true", context, "/web-app/servlet/servlet-name = 'snoop'");
        }
    }

    public void testNodesetEqualsNumber() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/numbers.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            assertValueOfXPath("true", context, "/numbers/set/nr = '-3'");
            assertValueOfXPath("true", context, "/numbers/set/nr = -3");
            assertValueOfXPath("true", context, "/numbers/set/nr = 24");
            assertValueOfXPath("true", context, "/numbers/set/nr/@value = '9999'");
            assertValueOfXPath("true", context, "/numbers/set/nr/@value = 9999.0");
            assertValueOfXPath("true", context, "/numbers/set/nr/@value = 66");
        }
    }

    /* test basic math...
    */
    public void testIntegerArithmetic() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/numbers.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            assertValueOfXPath("true", context, "(8 * 2 + 1) = 17");
            assertValueOfXPath("true", context, "(1 + 8 * 2) = 17");
            assertValueOfXPath("true", context, "(7 - 3 + 1) = 5");
            assertValueOfXPath("true", context, "(8 - 4 + 5 - 6) = 3");
            /* left-assoc tests, comments show WRONG evaluation
            */
            /* 3 - 2 - 1 != 2
            */
            assertValueOfXPath("0", context, "3 - 2 - 1");
            /* 8 div 4 div 2 != 4
            */
            assertValueOfXPath("1", context, "8 div 4 div 2");
            /* 3 mod 5 mod 7 != 1
            */
            assertValueOfXPath("3", context, "3 mod 7 mod 5");
            /* 1=(2=2) is true
            */
            assertValueOfXPath("false", context, "1 = 2 = 2");
            /*  2!=(3!=1) => 2!=1 => true, (2!=3)!=1 => 1!=1 => false
            */
            assertValueOfXPath("false", context, "2 != 3 != 1");
            /* 3 > (2 > 1) is true
            */
            assertValueOfXPath("false", context, "3 > 2 > 1");
            /* 3 >= (2 >= 2) is true
            */
            assertValueOfXPath("false", context, "3 >= 2 >= 2");
            /* 1 < (2 < 3) is false
            */
            assertValueOfXPath("true", context, "1 < 2 < 3");
            /* 0 <= (2 <= 3) is true
            */
            assertValueOfXPath("true", context, "2 <= 2 <= 3");
        }
    }
    
    public void testFloatingPointArithmetic() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/numbers.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            assertValueOfXPath("true", context, "(8.5 * 2.0 + 1) = 18");
            assertValueOfXPath("true", context, "(1.00 + 8.5 * 2) = 18.0");
            assertValueOfXPath("true", context, "(7.1 - 7.1 + 1.5) = 1.5");
            assertValueOfXPath("true", context, "(8.000 - 4.0 + 5 - 6.00) = 3");
            assertValueOfXPath("0", context, "3.5 - 2.5 - 1.0");
            assertValueOfXPath("1", context, "8.0 div 4.0 div 2.0");
            assertValueOfXPath("3", context, "3.0 mod 7.0 mod 5.0");
            assertValueOfXPath("false", context, "1.5 = 2.3 = 2.3");
            assertValueOfXPath("false", context, "2.1 != 3.2 != 1.9");
            assertValueOfXPath("false", context, "3.8 > 2.7 > 1.6");
            assertValueOfXPath("false", context, "3.4 >= 2.5 >= 2.5");
            assertValueOfXPath("true", context, "1.4 < 2.3 < 3.2");
            assertValueOfXPath("true", context, "2.5 <= 2.5 <= 3.5");
        }
    }

    /* test cases for preceding axis with different node types
    */
    public void testPrecedingSiblingAxis() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/pi2.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/a/c", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            assertCountXPath(1, context, "//processing-instruction()");
            assertCountXPath(1, context, "preceding-sibling::*");
            assertCountXPath(5, context, "preceding-sibling::node()");
            assertCountXPath(1, context, "preceding-sibling::*[1]");
            assertCountXPath(1, context, "preceding-sibling::processing-instruction()");
            assertValueOfXPath("order-by=\"x\"", context, "preceding-sibling::processing-instruction()");
            assertValueOfXPath("foo", context, "preceding-sibling::*[1]");
            assertValueOfXPath("order-by=\"x\"", context, "preceding-sibling::node()[2]");
        }
    }

    public void testVariableLookup() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/id.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        SimpleVariableContext varContext = new SimpleVariableContext();
        varContext.setVariableValue(null, "foobar", "foobar");
        varContext.setVariableValue(null, "foo", "foo");
        getContextSupport().setVariableContext(varContext);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            assertValueOfXPath("foobar", context, "$foobar");
            assertCountXPath(1, context, "/foo[@id=$foobar]");
            assertCountXPath(0, context, "/foo[@id='$foobar']");
            assertCountXPath(1, context, "/foo[concat($foo, 'bar')=@id]");
            assertCountXPath(0, context, "CD_Library/artist[@name=$artist]");
        }
    }

    public void testAttributeParent() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/id.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            /* attributes have a parent: their element
            */
            assertCountXPath(1, context, "/foo/@id/parent::foo");
        }
    }

    /* attributes can also be used as context nodes
    */
    public void testAttributeAsContext() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/id.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/foo/@id", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();
        while (iter.hasNext())
        {
            Object context = iter.next();
            assertCountXPath(1, context, "parent::foo");
        }
    }

    public void testid53992() throws JaxenException
    {
        Navigator nav = getNavigator();
        String url = "xml/pi.xml";
        log("Document [" + url + "]");
        Object document = nav.getDocument(url);
        XPath contextpath = new BaseXPath("/", nav);
        log("Initial Context :: " + contextpath);
        List list = contextpath.selectNodes(document);
        Iterator iter = list.iterator();