1093 lines
40 KiB
JavaScript
1093 lines
40 KiB
JavaScript
var xpath = require('./xpath.js')
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, dom = require('xmldom').DOMParser
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, assert = require('assert');
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var xhtmlNs = 'http://www.w3.org/1999/xhtml';
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module.exports = {
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'api': function(test) {
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assert.ok(xpath.evaluate, 'evaluate api ok.');
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assert.ok(xpath.select, 'select api ok.');
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assert.ok(xpath.parse, 'parse api ok.');
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test.done();
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},
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'evaluate': function(test) {
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var xml = '<book><title>Harry Potter</title></book>';
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var doc = new dom().parseFromString(xml);
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var nodes = xpath.evaluate('//title', doc, null, xpath.XPathResult.ANY_TYPE, null).nodes;
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assert.equal('title', nodes[0].localName);
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assert.equal('Harry Potter', nodes[0].firstChild.data);
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assert.equal('<title>Harry Potter</title>', nodes[0].toString());
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test.done();
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},
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'select': function(test) {
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var xml = '<?book title="Harry Potter"?><?series title="Harry Potter"?><?series books="7"?><book><!-- This is a great book --><title>Harry Potter</title></book>';
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var doc = new dom().parseFromString(xml);
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var nodes = xpath.select('//title', doc);
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assert.equal('title', nodes[0].localName);
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assert.equal('Harry Potter', nodes[0].firstChild.data);
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assert.equal('<title>Harry Potter</title>', nodes[0].toString());
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var nodes2 = xpath.select('//node()', doc);
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assert.equal(7, nodes2.length);
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var pis = xpath.select("/processing-instruction('series')", doc);
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assert.equal(2, pis.length);
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assert.equal('books="7"', pis[1].data);
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test.done();
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},
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'select single node': function(test) {
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var xml = '<book><title>Harry Potter</title></book>';
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var doc = new dom().parseFromString(xml);
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assert.equal('title', xpath.select('//title[1]', doc)[0].localName);
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test.done();
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},
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'select text node': function (test) {
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var xml = '<book><title>Harry</title><title>Potter</title></book>';
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var doc = new dom().parseFromString(xml);
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assert.deepEqual('book', xpath.select('local-name(/book)', doc));
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assert.deepEqual('Harry,Potter', xpath.select('//title/text()', doc).toString());
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test.done();
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},
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'select number value': function(test) {
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var xml = '<book><title>Harry</title><title>Potter</title></book>';
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var doc = new dom().parseFromString(xml);
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assert.deepEqual(2, xpath.select('count(//title)', doc));
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test.done();
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},
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'select xpath with namespaces': function (test) {
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var xml = '<book><title xmlns="myns">Harry Potter</title></book>';
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var doc = new dom().parseFromString(xml);
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var nodes = xpath.select('//*[local-name(.)="title" and namespace-uri(.)="myns"]', doc);
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assert.equal('title', nodes[0].localName);
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assert.equal('myns', nodes[0].namespaceURI) ;
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var nodes2 = xpath.select('/*/title', doc);
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assert.equal(0, nodes2.length);
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test.done();
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},
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'select xpath with namespaces, using a resolver': function (test) {
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var xml = '<book xmlns:testns="http://example.com/test" xmlns:otherns="http://example.com/other"><otherns:title>Narnia</otherns:title><testns:title>Harry Potter</testns:title><testns:field testns:type="author">JKR</testns:field></book>';
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var doc = new dom().parseFromString(xml);
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var resolver = {
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mappings: {
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'testns': 'http://example.com/test'
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},
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lookupNamespaceURI: function(prefix) {
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return this.mappings[prefix];
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}
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}
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var nodes = xpath.selectWithResolver('//testns:title/text()', doc, resolver);
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assert.equal('Harry Potter', xpath.selectWithResolver('//testns:title/text()', doc, resolver)[0].nodeValue);
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assert.equal('JKR', xpath.selectWithResolver('//testns:field[@testns:type="author"]/text()', doc, resolver)[0].nodeValue);
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var nodes2 = xpath.selectWithResolver('/*/testns:*', doc, resolver);
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assert.equal(2, nodes2.length);
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test.done();
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},
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'select xpath with default namespace, using a resolver': function (test) {
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var xml = '<book xmlns="http://example.com/test"><title>Harry Potter</title><field type="author">JKR</field></book>';
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var doc = new dom().parseFromString(xml);
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var resolver = {
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mappings: {
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'testns': 'http://example.com/test'
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},
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lookupNamespaceURI: function(prefix) {
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return this.mappings[prefix];
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}
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}
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var nodes = xpath.selectWithResolver('//testns:title/text()', doc, resolver);
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assert.equal('Harry Potter', xpath.selectWithResolver('//testns:title/text()', doc, resolver)[0].nodeValue);
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assert.equal('JKR', xpath.selectWithResolver('//testns:field[@type="author"]/text()', doc, resolver)[0].nodeValue);
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test.done();
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},
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'select xpath with namespaces, prefixes different in xml and xpath, using a resolver': function (test) {
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var xml = '<book xmlns:testns="http://example.com/test"><testns:title>Harry Potter</testns:title><testns:field testns:type="author">JKR</testns:field></book>';
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var doc = new dom().parseFromString(xml);
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var resolver = {
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mappings: {
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'ns': 'http://example.com/test'
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},
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lookupNamespaceURI: function(prefix) {
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return this.mappings[prefix];
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}
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}
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var nodes = xpath.selectWithResolver('//ns:title/text()', doc, resolver);
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assert.equal('Harry Potter', xpath.selectWithResolver('//ns:title/text()', doc, resolver)[0].nodeValue);
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assert.equal('JKR', xpath.selectWithResolver('//ns:field[@ns:type="author"]/text()', doc, resolver)[0].nodeValue);
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test.done();
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},
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'select xpath with namespaces, using namespace mappings': function (test) {
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var xml = '<book xmlns:testns="http://example.com/test"><testns:title>Harry Potter</testns:title><testns:field testns:type="author">JKR</testns:field></book>';
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var doc = new dom().parseFromString(xml);
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var select = xpath.useNamespaces({'testns': 'http://example.com/test'});
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assert.equal('Harry Potter', select('//testns:title/text()', doc)[0].nodeValue);
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assert.equal('JKR', select('//testns:field[@testns:type="author"]/text()', doc)[0].nodeValue);
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test.done();
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},
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'select attribute': function (test) {
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var xml = '<author name="J. K. Rowling"></author>';
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var doc = new dom().parseFromString(xml);
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var author = xpath.select1('/author/@name', doc).value;
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assert.equal('J. K. Rowling', author);
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test.done();
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}
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,'select with multiple predicates': function (test) {
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var xml = '<characters><character name="Snape" sex="M" age="50" /><character name="McGonnagal" sex="F" age="65" /><character name="Harry" sex="M" age="14" /></characters>';
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var doc = new dom().parseFromString(xml);
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var characters = xpath.select('/*/character[@sex = "M"][@age > 40]/@name', doc);
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assert.equal(1, characters.length);
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assert.equal('Snape', characters[0].textContent);
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test.done();
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}
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// https://github.com/goto100/xpath/issues/37
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,'select multiple attributes': function (test) {
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var xml = '<authors><author name="J. K. Rowling" /><author name="Saeed Akl" /></authors>';
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var doc = new dom().parseFromString(xml);
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var authors = xpath.select('/authors/author/@name', doc);
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assert.equal(2, authors.length);
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assert.equal('J. K. Rowling', authors[0].value);
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// https://github.com/goto100/xpath/issues/41
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doc = new dom().parseFromString('<chapters><chapter v="1"/><chapter v="2"/><chapter v="3"/></chapters>');
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var nodes = xpath.select("/chapters/chapter/@v", doc);
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var values = nodes.map(function(n) { return n.value; });
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assert.equal(3, values.length);
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assert.equal("1", values[0]);
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assert.equal("2", values[1]);
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assert.equal("3", values[2]);
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test.done();
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}
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,'XPathException acts like Error': function (test) {
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try {
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xpath.evaluate('1', null, null, null);
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assert.fail(null, null, 'evaluate() should throw exception');
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} catch (e) {
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assert.ok('code' in e, 'must have a code');
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assert.ok('stack' in e, 'must have a stack');
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}
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test.done();
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},
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'string() with no arguments': function (test) {
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var doc = new dom().parseFromString('<book>Harry Potter</book>');
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var rootElement = xpath.select1('/book', doc);
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assert.ok(rootElement, 'rootElement is null');
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assert.equal('Harry Potter', xpath.select1('string()', doc));
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test.done();
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},
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'string value of document fragment': function (test) {
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var doc = new dom().parseFromString('<n />');
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var docFragment = doc.createDocumentFragment();
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var el = doc.createElement("book");
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docFragment.appendChild(el);
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var testValue = "Harry Potter";
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el.appendChild(doc.createTextNode(testValue));
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assert.equal(testValue, xpath.select1("string()", docFragment));
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test.done();
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},
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'compare string of a number with a number': function (test) {
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assert.ok(xpath.select1('"000" = 0'), '000');
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assert.ok(xpath.select1('"45.0" = 45'), '45');
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test.done();
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},
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'string(boolean) is a string': function (test) {
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assert.equal('string', typeof xpath.select1('string(true())'));
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assert.equal('string', typeof xpath.select1('string(false())'));
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assert.equal('string', typeof xpath.select1('string(1 = 2)'));
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assert.ok(xpath.select1('"true" = string(true())'), '"true" = string(true())');
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test.done();
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},
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'string should downcast to boolean': function (test) {
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assert.equal(false, xpath.select1('"false" = false()'), '"false" = false()');
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assert.equal(true, xpath.select1('"a" = true()'), '"a" = true()');
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assert.equal(true, xpath.select1('"" = false()'), '"" = false()');
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test.done();
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},
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'string(number) is a string': function (test) {
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assert.equal('string', typeof xpath.select1('string(45)'));
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assert.ok(xpath.select1('"45" = string(45)'), '"45" = string(45)');
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test.done();
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},
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'correct string to number conversion': function (test) {
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assert.equal(45.2, xpath.select1('number("45.200")'));
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assert.equal(55.0, xpath.select1('number("000055")'));
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assert.equal(65.0, xpath.select1('number(" 65 ")'));
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assert.equal(true, xpath.select1('"" != 0'), '"" != 0');
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assert.equal(false, xpath.select1('"" = 0'), '"" = 0');
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assert.equal(false, xpath.select1('0 = ""'), '0 = ""');
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assert.equal(false, xpath.select1('0 = " "'), '0 = " "');
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assert.ok(Number.isNaN(xpath.select('number("")')), 'number("")');
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assert.ok(Number.isNaN(xpath.select('number("45.8g")')), 'number("45.8g")');
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assert.ok(Number.isNaN(xpath.select('number("2e9")')), 'number("2e9")');
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assert.ok(Number.isNaN(xpath.select('number("+33")')), 'number("+33")');
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test.done();
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}
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,'correct number to string conversion': function (test) {
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assert.equal('0.0000000000000000000000005250000000000001', xpath.parse('0.525 div 1000000 div 1000000 div 1000000 div 1000000').evaluateString());
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assert.equal('525000000000000000000000', xpath.parse('0.525 * 1000000 * 1000000 * 1000000 * 1000000').evaluateString());
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test.done();
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}
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,'local-name() and name() of processing instruction': function (test) {
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var xml = '<?book-record added="2015-01-16" author="J.K. Rowling" ?><book>Harry Potter</book>';
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var doc = new dom().parseFromString(xml);
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var expectedName = 'book-record';
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var localName = xpath.select('local-name(/processing-instruction())', doc);
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var name = xpath.select('name(/processing-instruction())', doc);
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assert.deepEqual(expectedName, localName, 'local-name() - "' + expectedName + '" !== "' + localName + '"');
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assert.deepEqual(expectedName, name, 'name() - "' + expectedName + '" !== "' + name + '"');
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test.done();
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},
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'evaluate substring-after': function (test) {
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var xml = '<classmate>Hermione</classmate>';
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var doc = new dom().parseFromString(xml);
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var part = xpath.select('substring-after(/classmate, "Her")', doc);
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assert.deepEqual('mione', part);
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test.done();
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}
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,'parsed expression with no options': function (test) {
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var parsed = xpath.parse('5 + 7');
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assert.equal(typeof parsed, "object", "parse() should return an object");
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assert.equal(typeof parsed.evaluate, "function", "parsed.evaluate should be a function");
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assert.equal(typeof parsed.evaluateNumber, "function", "parsed.evaluateNumber should be a function");
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assert.equal(parsed.evaluateNumber(), 12);
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// evaluating twice should yield the same result
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assert.equal(parsed.evaluateNumber(), 12);
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test.done();
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}
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,'select1() on parsed expression': function (test) {
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var xml = '<book><title>Harry Potter</title></book>';
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var doc = new dom().parseFromString(xml);
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var parsed = xpath.parse('/*/title');
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assert.equal(typeof parsed, 'object', 'parse() should return an object');
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assert.equal(typeof parsed.select1, 'function', 'parsed.select1 should be a function');
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var single = parsed.select1({ node: doc });
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assert.equal('title', single.localName);
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assert.equal('Harry Potter', single.firstChild.data);
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assert.equal('<title>Harry Potter</title>', single.toString());
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test.done();
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}
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,'select() on parsed expression': function (test) {
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var xml = '<book><title>Harry Potter</title></book>';
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var doc = new dom().parseFromString(xml);
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var parsed = xpath.parse('/*/title');
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assert.equal(typeof parsed, 'object', 'parse() should return an object');
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assert.equal(typeof parsed.select, 'function', 'parsed.select should be a function');
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var nodes = parsed.select({ node: doc });
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assert.ok(nodes, 'parsed.select() should return a value');
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assert.equal(1, nodes.length);
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assert.equal('title', nodes[0].localName);
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assert.equal('Harry Potter', nodes[0].firstChild.data);
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assert.equal('<title>Harry Potter</title>', nodes[0].toString());
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test.done();
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}
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,'evaluateString(), and evaluateNumber() on parsed expression with node': function (test) {
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var xml = '<book><title>Harry Potter</title><numVolumes>7</numVolumes></book>';
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var doc = new dom().parseFromString(xml);
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var parsed = xpath.parse('/*/numVolumes');
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assert.equal(typeof parsed, 'object', 'parse() should return an object');
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assert.equal(typeof parsed.evaluateString, 'function', 'parsed.evaluateString should be a function');
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assert.equal('7', parsed.evaluateString({ node: doc }));
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assert.equal(typeof parsed.evaluateBoolean, 'function', 'parsed.evaluateBoolean should be a function');
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assert.equal(true, parsed.evaluateBoolean({ node: doc }));
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assert.equal(typeof parsed.evaluateNumber, 'function', 'parsed.evaluateNumber should be a function');
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assert.equal(7, parsed.evaluateNumber({ node: doc }));
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test.done();
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}
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,'evaluateBoolean() on parsed empty node set and boolean expressions': function (test) {
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var xml = '<book><title>Harry Potter</title></book>';
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var doc = new dom().parseFromString(xml);
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var context = { node: doc };
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function evaluate(path) {
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return xpath.parse(path).evaluateBoolean({ node: doc });
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}
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assert.equal(false, evaluate('/*/myrtle'), 'boolean value of empty node set should be false');
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assert.equal(true, evaluate('not(/*/myrtle)'), 'not() of empty nodeset should be true');
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assert.equal(true, evaluate('/*/title'), 'boolean value of non-empty nodeset should be true');
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assert.equal(true, evaluate('/*/title = "Harry Potter"'), 'title equals Harry Potter');
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assert.equal(false, evaluate('/*/title != "Harry Potter"'), 'title != Harry Potter should be false');
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assert.equal(false, evaluate('/*/title = "Percy Jackson"'), 'title should not equal Percy Jackson');
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test.done();
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}
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,'namespaces with parsed expression': function (test) {
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var xml = '<characters xmlns:ps="http://philosophers-stone.com" xmlns:cs="http://chamber-secrets.com">' +
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'<ps:character>Quirrell</ps:character><ps:character>Fluffy</ps:character>' +
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'<cs:character>Myrtle</cs:character><cs:character>Tom Riddle</cs:character>' +
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'</characters>';
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var doc = new dom().parseFromString(xml);
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var expr = xpath.parse('/characters/c:character');
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var countExpr = xpath.parse('count(/characters/c:character)');
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var csns = 'http://chamber-secrets.com';
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function resolve(prefix) {
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if (prefix === 'c') {
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return csns;
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}
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}
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function testContext(context, description) {
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try {
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var value = expr.evaluateString(context);
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var count = countExpr.evaluateNumber(context);
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assert.equal('Myrtle', value, description + ' - string value - ' + value);
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assert.equal(2, count, description + ' map - count - ' + count);
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} catch(e) {
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e.message = description + ': ' + (e.message || '');
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throw e;
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}
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}
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testContext({
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node: doc,
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namespaces: {
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c: csns
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}
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}, 'Namespace map');
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testContext({
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node: doc,
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namespaces: resolve
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}, 'Namespace function');
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testContext({
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node: doc,
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namespaces: {
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getNamespace: resolve
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}
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}, 'Namespace object');
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test.done();
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}
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,'custom functions': function (test) {
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var xml = '<book><title>Harry Potter</title></book>';
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var doc = new dom().parseFromString(xml);
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|
var parsed = xpath.parse('concat(double(/*/title), " is cool")');
|
|
|
|
function doubleString(context, value) {
|
|
assert.equal(2, arguments.length);
|
|
var str = value.stringValue();
|
|
return str + str;
|
|
}
|
|
|
|
function functions(name, namespace) {
|
|
if(name === 'double') {
|
|
return doubleString;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
function testContext(context, description) {
|
|
try{
|
|
var actual = parsed.evaluateString(context);
|
|
var expected = 'Harry PotterHarry Potter is cool';
|
|
assert.equal(expected, actual, description + ' - ' + expected + ' != ' + actual);
|
|
} catch (e) {
|
|
e.message = description + ": " + (e.message || '');
|
|
throw e;
|
|
}
|
|
}
|
|
|
|
testContext({
|
|
node: doc,
|
|
functions: functions
|
|
}, 'Functions function');
|
|
|
|
testContext({
|
|
node: doc,
|
|
functions: {
|
|
getFunction: functions
|
|
}
|
|
}, 'Functions object');
|
|
|
|
testContext({
|
|
node: doc,
|
|
functions: {
|
|
double: doubleString
|
|
}
|
|
}, 'Functions map');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'custom function namespaces': function (test) {
|
|
var xml = '<book><title>Harry Potter</title><friend>Ron</friend><friend>Hermione</friend><friend>Neville</friend></book>';
|
|
var doc = new dom().parseFromString(xml);
|
|
|
|
var parsed = xpath.parse('concat(hp:double(/*/title), " is 2 cool ", hp:square(2), " school")');
|
|
var hpns = 'http://harry-potter.com';
|
|
|
|
var namespaces = {
|
|
hp: hpns
|
|
};
|
|
|
|
var context = {
|
|
node: doc,
|
|
namespaces: {
|
|
hp: hpns
|
|
},
|
|
functions: function (name, namespace) {
|
|
if (namespace === hpns) {
|
|
switch (name) {
|
|
case "double":
|
|
return function (context, value) {
|
|
assert.equal(2, arguments.length);
|
|
var str = value.stringValue();
|
|
return str + str;
|
|
};
|
|
case "square":
|
|
return function (context, value) {
|
|
var num = value.numberValue();
|
|
return num * num;
|
|
};
|
|
|
|
case "xor":
|
|
return function (context, l, r) {
|
|
assert.equal(3, arguments.length);
|
|
var lbool = l.booleanValue();
|
|
var rbool = r.booleanValue();
|
|
return (lbool || rbool) && !(lbool && rbool);
|
|
};
|
|
|
|
case "second":
|
|
return function (context, nodes) {
|
|
var nodesArr = nodes.toArray();
|
|
var second = nodesArr[1];
|
|
return second ? [second] : [];
|
|
};
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
};
|
|
|
|
assert.equal('Harry PotterHarry Potter is 2 cool 4 school', parsed.evaluateString(context));
|
|
|
|
assert.equal(false, xpath.parse('hp:xor(false(), false())').evaluateBoolean(context));
|
|
assert.equal(true, xpath.parse('hp:xor(false(), true())').evaluateBoolean(context));
|
|
assert.equal(true, xpath.parse('hp:xor(true(), false())').evaluateBoolean(context));
|
|
assert.equal(false, xpath.parse('hp:xor(true(), true())').evaluateBoolean(context));
|
|
|
|
assert.equal('Hermione', xpath.parse('hp:second(/*/friend)').evaluateString(context));
|
|
assert.equal(1, xpath.parse('count(hp:second(/*/friend))').evaluateNumber(context));
|
|
assert.equal(0, xpath.parse('count(hp:second(/*/friendz))').evaluateNumber(context));
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'xpath variables': function (test) {
|
|
var xml = '<book><title>Harry Potter</title><volumes>7</volumes></book>';
|
|
var doc = new dom().parseFromString(xml);
|
|
|
|
var variables = {
|
|
title: 'Harry Potter',
|
|
notTitle: 'Percy Jackson',
|
|
houses: 4
|
|
};
|
|
|
|
function variableFunction(name) {
|
|
return variables[name];
|
|
}
|
|
|
|
function testContext(context, description) {
|
|
try{
|
|
assert.equal(true, xpath.parse('$title = /*/title').evaluateBoolean(context));
|
|
assert.equal(false, xpath.parse('$notTitle = /*/title').evaluateBoolean(context));
|
|
assert.equal(11, xpath.parse('$houses + /*/volumes').evaluateNumber(context));
|
|
} catch (e) {
|
|
e.message = description + ": " + (e.message || '');
|
|
throw e;
|
|
}
|
|
}
|
|
|
|
testContext({
|
|
node: doc,
|
|
variables: variableFunction
|
|
}, 'Variables function');
|
|
|
|
testContext({
|
|
node: doc,
|
|
variables: {
|
|
getVariable: variableFunction
|
|
}
|
|
}, 'Variables object');
|
|
|
|
testContext({
|
|
node: doc,
|
|
variables: variables
|
|
}, 'Variables map');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'xpath variable namespaces': function (test) {
|
|
var xml = '<book><title>Harry Potter</title><volumes>7</volumes></book>';
|
|
var doc = new dom().parseFromString(xml);
|
|
var hpns = 'http://harry-potter.com';
|
|
|
|
var context = {
|
|
node: doc,
|
|
namespaces: {
|
|
hp: hpns
|
|
},
|
|
variables: function(name, namespace) {
|
|
if (namespace === hpns) {
|
|
switch (name) {
|
|
case 'title': return 'Harry Potter';
|
|
case 'houses': return 4;
|
|
case 'false': return false;
|
|
case 'falseStr': return 'false';
|
|
}
|
|
} else if (namespace === '') {
|
|
switch (name) {
|
|
case 'title': return 'World';
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
};
|
|
|
|
assert.equal(true, xpath.parse('$hp:title = /*/title').evaluateBoolean(context));
|
|
assert.equal(false, xpath.parse('$title = /*/title').evaluateBoolean(context));
|
|
assert.equal('World', xpath.parse('$title').evaluateString(context));
|
|
assert.equal(false, xpath.parse('$hp:false').evaluateBoolean(context));
|
|
assert.notEqual(false, xpath.parse('$hp:falseStr').evaluateBoolean(context));
|
|
assert.throws(function () {
|
|
xpath.parse('$hp:hello').evaluateString(context);
|
|
}, function (err) {
|
|
return err.message === 'Undeclared variable: $hp:hello';
|
|
});
|
|
|
|
test.done();
|
|
}
|
|
|
|
,"detect unterminated string literals": function (test) {
|
|
function testUnterminated(path) {
|
|
assert.throws(function () {
|
|
xpath.evaluate('"hello');
|
|
}, function (err) {
|
|
return err.message.indexOf('Unterminated') !== -1;
|
|
});
|
|
}
|
|
|
|
testUnterminated('"Hello');
|
|
testUnterminated("'Hello");
|
|
testUnterminated('self::text() = "\""');
|
|
testUnterminated('"\""');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,"string value for CDATA sections": function (test) {
|
|
var xml = "<people><person><![CDATA[Harry Potter]]></person><person>Ron <![CDATA[Weasley]]></person></people>",
|
|
doc = new dom().parseFromString(xml),
|
|
person1 = xpath.parse("/people/person").evaluateString({ node: doc }),
|
|
person2 = xpath.parse("/people/person/text()").evaluateString({ node: doc }),
|
|
person3 = xpath.select("string(/people/person/text())", doc);
|
|
person4 = xpath.parse("/people/person[2]").evaluateString({ node: doc });
|
|
|
|
assert.equal(person1, 'Harry Potter');
|
|
assert.equal(person2, 'Harry Potter');
|
|
assert.equal(person3, 'Harry Potter');
|
|
assert.equal(person4, 'Ron Weasley');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,"string value of various node types": function (test) {
|
|
var xml = "<book xmlns:hp='http://harry'><!-- This describes the Harry Potter Book --><?author name='J.K. Rowling' ?><title lang='en'><![CDATA[Harry Potter & the Philosopher's Stone]]></title><character>Harry Potter</character></book>",
|
|
doc = new dom().parseFromString(xml),
|
|
allText = xpath.parse('.').evaluateString({ node: doc }),
|
|
ns = xpath.parse('*/namespace::*[name() = "hp"]').evaluateString({ node: doc }),
|
|
title = xpath.parse('*/title').evaluateString({ node: doc }),
|
|
child = xpath.parse('*/*').evaluateString({ node: doc }),
|
|
titleLang = xpath.parse('*/*/@lang').evaluateString({ node: doc }),
|
|
pi = xpath.parse('*/processing-instruction()').evaluateString({ node: doc }),
|
|
comment = xpath.parse('*/comment()').evaluateString({ node: doc });
|
|
|
|
assert.equal(allText, "Harry Potter & the Philosopher's StoneHarry Potter");
|
|
assert.equal(ns, 'http://harry');
|
|
assert.equal(title, "Harry Potter & the Philosopher's Stone");
|
|
assert.equal(child, "Harry Potter & the Philosopher's Stone");
|
|
assert.equal(titleLang, 'en');
|
|
assert.equal(pi.trim(), "name='J.K. Rowling'");
|
|
assert.equal(comment, ' This describes the Harry Potter Book ');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,"exposes custom types": function (test) {
|
|
assert.ok(xpath.XPath, "xpath.XPath");
|
|
assert.ok(xpath.XPathParser, "xpath.XPathParser");
|
|
assert.ok(xpath.XPathResult, "xpath.XPathResult");
|
|
|
|
assert.ok(xpath.Step, "xpath.Step");
|
|
assert.ok(xpath.NodeTest, "xpath.NodeTest");
|
|
assert.ok(xpath.BarOperation, "xpath.BarOperation");
|
|
|
|
assert.ok(xpath.NamespaceResolver, "xpath.NamespaceResolver");
|
|
assert.ok(xpath.FunctionResolver, "xpath.FunctionResolver");
|
|
assert.ok(xpath.VariableResolver, "xpath.VariableResolver");
|
|
|
|
assert.ok(xpath.Utilities, "xpath.Utilities");
|
|
|
|
assert.ok(xpath.XPathContext, "xpath.XPathContext");
|
|
assert.ok(xpath.XNodeSet, "xpath.XNodeSet");
|
|
assert.ok(xpath.XBoolean, "xpath.XBoolean");
|
|
assert.ok(xpath.XString, "xpath.XString");
|
|
assert.ok(xpath.XNumber, "xpath.XNumber");
|
|
|
|
test.done();
|
|
}
|
|
|
|
,"work with nodes created using DOM1 createElement()": function (test) {
|
|
var doc = new dom().parseFromString('<book />');
|
|
|
|
doc.documentElement.appendChild(doc.createElement('characters'));
|
|
|
|
assert.ok(xpath.select1('/book/characters', doc));
|
|
|
|
assert.equal(xpath.select1('local-name(/book/characters)', doc), 'characters');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,"preceding:: axis works on document fragments": function (test) {
|
|
var doc = new dom().parseFromString('<n />'),
|
|
df = doc.createDocumentFragment(),
|
|
root = doc.createElement('book');
|
|
|
|
df.appendChild(root);
|
|
|
|
for (var i = 0; i < 10; i += 1) {
|
|
root.appendChild(doc.createElement('chapter'));
|
|
}
|
|
|
|
var chapter = xpath.select1("book/chapter[5]", df);
|
|
|
|
assert.ok(chapter, 'chapter');
|
|
|
|
assert.equal(xpath.select("count(preceding::chapter)", chapter), 4);
|
|
|
|
test.done();
|
|
}
|
|
|
|
,"node set sorted and unsorted arrays": function (test) {
|
|
var doc = new dom().parseFromString('<book><character>Harry</character><character>Ron</character><character>Hermione</character></book>'),
|
|
path = xpath.parse("/*/*[3] | /*/*[2] | /*/*[1]")
|
|
nset = path.evaluateNodeSet({ node: doc }),
|
|
sorted = nset.toArray(),
|
|
unsorted = nset.toUnsortedArray();
|
|
|
|
assert.equal(sorted.length, 3);
|
|
assert.equal(unsorted.length, 3);
|
|
|
|
assert.equal(sorted[0].textContent, 'Harry');
|
|
assert.equal(sorted[1].textContent, 'Ron');
|
|
assert.equal(sorted[2].textContent, 'Hermione');
|
|
|
|
assert.notEqual(sorted[0], unsorted[0], "first nodeset element equal");
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'meaningful error for invalid function': function(test) {
|
|
var path = xpath.parse('invalidFunc()');
|
|
|
|
assert.throws(function () {
|
|
path.evaluateString();
|
|
}, function (err) {
|
|
return err.message.indexOf('invalidFunc') !== -1;
|
|
});
|
|
|
|
var path2 = xpath.parse('funcs:invalidFunc()');
|
|
|
|
assert.throws(function () {
|
|
path2.evaluateString({
|
|
namespaces: {
|
|
funcs: 'myfunctions'
|
|
}
|
|
});
|
|
}, function (err) {
|
|
return err.message.indexOf('invalidFunc') !== -1;
|
|
});
|
|
|
|
test.done();
|
|
}
|
|
|
|
// https://github.com/goto100/xpath/issues/32
|
|
,'supports contains() function on attributes': function (test) {
|
|
var doc = new dom().parseFromString("<books><book title='Harry Potter and the Philosopher\"s Stone' /><book title='Harry Potter and the Chamber of Secrets' /></books>"),
|
|
andTheBooks = xpath.select("/books/book[contains(@title, ' ')]", doc),
|
|
secretBooks = xpath.select("/books/book[contains(@title, 'Secrets')]", doc);
|
|
|
|
assert.equal(andTheBooks.length, 2);
|
|
assert.equal(secretBooks.length, 1);
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'compare multiple nodes to multiple nodes (equals)': function (test) {
|
|
var xml = '<school><houses>' +
|
|
'<house name="Gryffindor"><student>Harry</student><student>Hermione</student></house>' +
|
|
'<house name="Slytherin"><student>Draco</student><student>Crabbe</student></house>' +
|
|
'<house name="Ravenclaw"><student>Luna</student><student>Cho</student></house>' +
|
|
'</houses>' +
|
|
'<honorStudents><student>Hermione</student><student>Luna</student></honorStudents></school>';
|
|
|
|
var doc = new dom().parseFromString(xml);
|
|
var houses = xpath.parse('/school/houses/house[student = /school/honorStudents/student]').select({ node: doc });
|
|
|
|
assert.equal(houses.length, 2);
|
|
|
|
var houseNames = houses.map(function (node) { return node.getAttribute('name'); }).sort();
|
|
|
|
assert.equal(houseNames[0], 'Gryffindor');
|
|
assert.equal(houseNames[1], 'Ravenclaw');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'compare multiple nodes to multiple nodes (gte)': function (test) {
|
|
var xml = '<school><houses>' +
|
|
'<house name="Gryffindor"><student level="5">Harry</student><student level="9">Hermione</student></house>' +
|
|
'<house name="Slytherin"><student level="1">Goyle</student><student level="1">Crabbe</student></house>' +
|
|
'<house name="Ravenclaw"><student level="4">Luna</student><student level="3">Cho</student></house>' +
|
|
'</houses>' +
|
|
'<courses><course minLevel="9">DADA</course><course minLevel="4">Charms</course></courses>' +
|
|
'</school>';
|
|
|
|
var doc = new dom().parseFromString(xml);
|
|
var houses = xpath.parse('/school/houses/house[student/@level >= /school/courses/course/@minLevel]').select({ node: doc });
|
|
|
|
assert.equal(houses.length, 2);
|
|
|
|
var houseNames = houses.map(function (node) { return node.getAttribute('name'); }).sort();
|
|
|
|
assert.equal(houseNames[0], 'Gryffindor');
|
|
assert.equal(houseNames[1], 'Ravenclaw');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'inequality comparisons with nodesets': function (test) {
|
|
var xml = "<books><book num='1' title='PS' /><book num='2' title='CoS' /><book num='3' title='PoA' /><book num='4' title='GoF' /><book num='5' title='OotP' /><book num='6' title='HBP' /><book num='7' title='DH' /></books>";
|
|
var doc = new dom().parseFromString(xml);
|
|
|
|
var options = { node: doc, variables: { theNumber: 3, theString: '3', theBoolean: true }};
|
|
|
|
var numberPaths = [
|
|
'/books/book[$theNumber <= @num]',
|
|
'/books/book[$theNumber < @num]',
|
|
'/books/book[$theNumber >= @num]',
|
|
'/books/book[$theNumber > @num]'
|
|
];
|
|
|
|
var stringPaths = [
|
|
'/books/book[$theString <= @num]',
|
|
'/books/book[$theString < @num]',
|
|
'/books/book[$theString >= @num]',
|
|
'/books/book[$theString > @num]'
|
|
];
|
|
|
|
var booleanPaths = [
|
|
'/books/book[$theBoolean <= @num]',
|
|
'/books/book[$theBoolean < @num]',
|
|
'/books/book[$theBoolean >= @num]',
|
|
'/books/book[$theBoolean > @num]'
|
|
];
|
|
|
|
var lhsPaths = [
|
|
'/books/book[@num <= $theNumber]',
|
|
'/books/book[@num < $theNumber]'
|
|
];
|
|
|
|
function countNodes(paths){
|
|
return paths
|
|
.map(xpath.parse)
|
|
.map(function (path) { return path.select(options) })
|
|
.map(function (arr) { return arr.length; });
|
|
}
|
|
|
|
assert.deepEqual(countNodes(numberPaths), [5, 4, 3, 2], 'numbers');
|
|
assert.deepEqual(countNodes(stringPaths), [5, 4, 3, 2], 'strings');
|
|
assert.deepEqual(countNodes(booleanPaths), [7, 6, 1, 0], 'numbers');
|
|
assert.deepEqual(countNodes(lhsPaths), [3, 2], 'lhs');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'error when evaluating boolean as number': function (test) {
|
|
var num = xpath.parse('"a" = "b"').evaluateNumber();
|
|
|
|
assert.equal(num, 0);
|
|
|
|
var str = xpath.select('substring("expelliarmus", 1, "a" = "a")');
|
|
|
|
assert.equal(str, 'e');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'string values of parsed expressions': function (test) {
|
|
var parser = new xpath.XPathParser();
|
|
|
|
var simpleStep = parser.parse('my:book');
|
|
|
|
assert.equal(simpleStep.toString(), 'child::my:book');
|
|
|
|
var precedingSib = parser.parse('preceding-sibling::my:chapter');
|
|
|
|
assert.equal(precedingSib.toString(), 'preceding-sibling::my:chapter');
|
|
|
|
var withPredicates = parser.parse('book[number > 3][contains(title, "and the")]');
|
|
|
|
assert.equal(withPredicates.toString(), "child::book[(child::number > 3)][contains(child::title, 'and the')]");
|
|
|
|
var parenthesisWithPredicate = parser.parse('(/books/book/chapter)[7]');
|
|
|
|
assert.equal(parenthesisWithPredicate.toString(), '(/child::books/child::book/child::chapter)[7]');
|
|
|
|
var charactersOver20 = parser.parse('heroes[age > 20] | villains[age > 20]');
|
|
|
|
assert.equal(charactersOver20.toString(), 'child::heroes[(child::age > 20)] | child::villains[(child::age > 20)]');
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'context position should work correctly': function (test) {
|
|
var doc = new dom().parseFromString("<books><book><chapter>The boy who lived</chapter><chapter>The vanishing glass</chapter></book><book><chapter>The worst birthday</chapter><chapter>Dobby's warning</chapter><chapter>The burrow</chapter></book></books>");
|
|
|
|
var chapters = xpath.parse('/books/book/chapter[2]').select({ node: doc });
|
|
|
|
assert.equal(2, chapters.length);
|
|
assert.equal('The vanishing glass', chapters[0].textContent);
|
|
assert.equal("Dobby's warning", chapters[1].textContent);
|
|
|
|
var lastChapters = xpath.parse('/books/book/chapter[last()]').select({ node: doc });
|
|
|
|
assert.equal(2, lastChapters.length);
|
|
assert.equal('The vanishing glass', lastChapters[0].textContent);
|
|
assert.equal("The burrow", lastChapters[1].textContent);
|
|
|
|
var secondChapter = xpath.parse('(/books/book/chapter)[2]').select({ node: doc });
|
|
|
|
assert.equal(1, secondChapter.length);
|
|
assert.equal('The vanishing glass', chapters[0].textContent);
|
|
|
|
var lastChapter = xpath.parse('(/books/book/chapter)[last()]').select({ node: doc });
|
|
|
|
assert.equal(1, lastChapter.length);
|
|
assert.equal("The burrow", lastChapter[0].textContent);
|
|
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'should allow null namespaces for null prefixes': function (test) {
|
|
var markup = '<html><head></head><body><p>Hi Ron!</p><my:p xmlns:my="http://www.example.com/my">Hi Draco!</p><p>Hi Hermione!</p></body></html>';
|
|
var docHtml = new dom().parseFromString(markup, 'text/html');
|
|
|
|
var noPrefixPath = xpath.parse('/html/body/p[2]');
|
|
|
|
var greetings1 = noPrefixPath.select({ node: docHtml, allowAnyNamespaceForNoPrefix: false });
|
|
|
|
assert.equal(0, greetings1.length);
|
|
|
|
var allowAnyNamespaceOptions = { node: docHtml, allowAnyNamespaceForNoPrefix: true };
|
|
|
|
// if allowAnyNamespaceForNoPrefix specified, allow using prefix-less node tests to match nodes with no prefix
|
|
var greetings2 = noPrefixPath.select(allowAnyNamespaceOptions);
|
|
|
|
assert.equal(1, greetings2.length);
|
|
assert.equal('Hi Hermione!', greetings2[0].textContent);
|
|
|
|
var allGreetings = xpath.parse('/html/body/p').select(allowAnyNamespaceOptions);
|
|
|
|
assert.equal(2, allGreetings.length);
|
|
|
|
var nsm = { html: xhtmlNs, other: 'http://www.example.com/other' };
|
|
|
|
var prefixPath = xpath.parse('/html:html/body/html:p');
|
|
var optionsWithNamespaces = { node: docHtml, allowAnyNamespaceForNoPrefix: true, namespaces: nsm };
|
|
|
|
// if the path uses prefixes, they have to match
|
|
var greetings3 = prefixPath.select(optionsWithNamespaces);
|
|
|
|
assert.equal(2, greetings3.length);
|
|
|
|
var badPrefixPath = xpath.parse('/html:html/other:body/html:p');
|
|
|
|
var greetings4 = badPrefixPath.select(optionsWithNamespaces);
|
|
|
|
test.done();
|
|
}
|
|
|
|
,'support isHtml option' : function (test){
|
|
var markup = '<html><head></head><body><p>Hi Ron!</p><my:p xmlns:my="http://www.example.com/my">Hi Draco!</p><p>Hi Hermione!</p></body></html>';
|
|
var docHtml = new dom().parseFromString(markup, 'text/html');
|
|
|
|
var ns = { h: xhtmlNs };
|
|
|
|
// allow matching on unprefixed nodes
|
|
var greetings1 = xpath.parse('/html/body/p').select({ node: docHtml, isHtml: true });
|
|
|
|
assert.equal(2, greetings1.length);
|
|
|
|
// allow case insensitive match
|
|
var greetings2 = xpath.parse('/h:html/h:bOdY/h:p').select({ node: docHtml, namespaces: ns, isHtml: true });
|
|
|
|
assert.equal(2, greetings2.length);
|
|
|
|
// non-html mode: allow select if case and namespaces match
|
|
var greetings3 = xpath.parse('/h:html/h:body/h:p').select({ node: docHtml, namespaces: ns });
|
|
|
|
assert.equal(2, greetings3.length);
|
|
|
|
// non-html mode: require namespaces
|
|
var greetings4 = xpath.parse('/html/body/p').select({ node: docHtml, namespaces: ns });
|
|
|
|
assert.equal(0, greetings4.length);
|
|
|
|
// non-html mode: require case to match
|
|
var greetings5 = xpath.parse('/h:html/h:bOdY/h:p').select({ node: docHtml, namespaces: ns });
|
|
|
|
assert.equal(0, greetings5.length);
|
|
|
|
test.done();
|
|
}
|
|
|
|
,"builtin functions": function (test) {
|
|
var translated = xpath.parse('translate("hello", "lhho", "yHb")').evaluateString();
|
|
|
|
assert.equal('Heyy', translated);
|
|
|
|
var characters = new dom().parseFromString('<characters><character>Harry</character><character>Ron</character><character>Hermione</character></characters>');
|
|
|
|
var firstTwo = xpath.parse('/characters/character[position() <= 2]').select({ node: characters });
|
|
|
|
assert.equal(2, firstTwo.length);
|
|
assert.equal('Harry', firstTwo[0].textContent);
|
|
assert.equal('Ron', firstTwo[1].textContent);
|
|
|
|
var last = xpath.parse('/characters/character[last()]').select({ node: characters });
|
|
|
|
assert.equal(1, last.length);
|
|
assert.equal('Hermione', last[0].textContent);
|
|
|
|
test.done();
|
|
}
|
|
}
|